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This commit is contained in:
mimic
2020-03-12 16:58:08 +01:00
parent 9fa0fe05f7
commit fba726d336
24 changed files with 51346 additions and 102 deletions
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src/main/java/edu/lu/uni/serval/fixminer/ediff/HierarchicalRegrouperForC.java
+62 -41
View File
@@ -86,6 +86,7 @@ public class HierarchicalRegrouperForC {
// }
}
}
List<HierarchicalActionSet> reActionSets1 = new ArrayList<>();
for(HierarchicalActionSet a:reActionSets){
HierarchicalActionSet hierarchicalActionSet = purifyActionSet(a);
@@ -97,6 +98,9 @@ public class HierarchicalRegrouperForC {
}
}
return reActionSets1;
// return reActionSets;
}
@@ -106,10 +110,11 @@ public class HierarchicalRegrouperForC {
hierarchicalActionSet = removeParentForSingle(hierarchicalActionSet);
hierarchicalActionSet = removeParentNode(hierarchicalActionSet);
return hierarchicalActionSet;
// return actionSet;
}
private List<HierarchicalActionSet> divideBlocks(HierarchicalActionSet actionSet){
if (actionSet.getAstNodeType().equals("block")){
if (actionSet.getAstNodeType().equals("block") || actionSet.getAstNodeType().equals("function")){
List<HierarchicalActionSet> subActions = actionSet.getSubActions();
if (subActions.size() > 1) {
boolean b = subActions.stream().allMatch(p -> NodeMap_new.getKeysByValue(NodeMap_new.StatementMap, p.getAstNodeType()).size() == 1 && p.getAstNodeType().equals(subActions.get(0).getAstNodeType()) && p.getAction().getName().equals(subActions.get(0).getAction().getName()));
@@ -145,6 +150,53 @@ public class HierarchicalRegrouperForC {
// return b;
}
private HierarchicalActionSet removeBlocks(HierarchicalActionSet actionSet){
List<HierarchicalActionSet> subActions = actionSet.getSubActions();
Predicate<HierarchicalActionSet> predicate = x->NodeMap_new.getKeysByValue(NodeMap_new.StatementMap,x.getAstNodeType()).size() == 1 ;
Predicate<HierarchicalActionSet> predicate1 = x->!x.getAstNodeType().equals("block");
Predicate<HierarchicalActionSet> predicate2 = x->!x.getAstNodeType().equals("then");
Action action = actionSet.getAction();
if (subActions.size() == 1){
HierarchicalActionSet subaction = subActions.get(0);
if(!postOrder(subaction).stream().anyMatch(predicate.and(predicate1.and(predicate2)))){
return actionSet;
}
Action action1 = subaction.getAction();
//else,then,block
if(action.getClass().equals(action1.getClass()) && action.getName().equals("UPD")) {
List<Integer> keysByValue = NodeMap_new.getKeysByValue(NodeMap_new.StatementMap, subaction.getAstNodeType());
if (keysByValue != null && keysByValue.size() == 1) {
subaction.setParent(null);
return removeBlocks(subaction);
}
// if(areRelatedActions(action,action1)) {
// if (subaction.getAstNodeType().equals("block")) {//|| subaction.getAstNodeType().equals("then") || subaction.getAstNodeType().equals("else")){
// List<HierarchicalActionSet> subSubActions = subaction.getSubActions();
// if (subSubActions.size() == 1) {
//
// HierarchicalActionSet subsubsubAction = subSubActions.get(0);
// List<Integer> keysByValue = NodeMap_new.getKeysByValue(NodeMap_new.StatementMap, subsubsubAction.getAstNodeType());
// if (keysByValue != null && keysByValue.size() == 1) {
//
// subsubsubAction.setParent(null);
// return removeBlocks(subsubsubAction);
//
// }
// }
// }
}
}
return actionSet;
}
private HierarchicalActionSet removeParentNode(HierarchicalActionSet actionSet){
List<HierarchicalActionSet> subActions = actionSet.getSubActions();
Action action = actionSet.getAction();
@@ -164,42 +216,6 @@ public class HierarchicalRegrouperForC {
return actionSet;
}
private HierarchicalActionSet removeBlocks(HierarchicalActionSet actionSet){
List<HierarchicalActionSet> subActions = actionSet.getSubActions();
Predicate<HierarchicalActionSet> predicate = x->NodeMap_new.getKeysByValue(NodeMap_new.StatementMap,x.getAstNodeType()).size() == 1 ;
Predicate<HierarchicalActionSet> predicate1 = x->!x.getAstNodeType().equals("block");
Action action = actionSet.getAction();
if (subActions.size() == 1){
HierarchicalActionSet subaction = subActions.get(0);
if(!postOrder(subaction).stream().anyMatch(predicate.and(predicate1))){
return actionSet;
}
Action action1 = subaction.getAction();
//else,then,block
if(action.getClass().equals(action1.getClass()) && action.getName().equals("UPD")) {
// if(areRelatedActions(action,action1)) {
// if (subaction.getAstNodeType().equals("block")) {//|| subaction.getAstNodeType().equals("then") || subaction.getAstNodeType().equals("else")){
List<HierarchicalActionSet> subSubActions = subaction.getSubActions();
if (subSubActions.size() == 1) {
HierarchicalActionSet subsubsubAction = subSubActions.get(0);
List<Integer> keysByValue = NodeMap_new.getKeysByValue(NodeMap_new.StatementMap, subsubsubAction.getAstNodeType());
if (keysByValue != null && keysByValue.size() == 1) {
subsubsubAction.setParent(null);
return removeBlocks(subsubsubAction);
}
}
// }
}
}
return actionSet;
}
private HierarchicalActionSet removeParentForSingle(HierarchicalActionSet actionSet){
List<HierarchicalActionSet> subActions = actionSet.getSubActions();
Action action = actionSet.getAction();
@@ -395,7 +411,12 @@ public class HierarchicalRegrouperForC {
// }
for (Action act : actions) {
if (act.getNode().equals(parent)) {
if (act instanceof Move){
if(act.getNode().equals(action.getNode())){
return act;
}
}
else if (act.getNode().equals(parent)) {
if (areRelatedActions(act, action)) {
return act;
}
@@ -481,9 +502,9 @@ public class HierarchicalRegrouperForC {
}
private boolean areRelatedActions(Action parent, Action child) {
if (parent instanceof Move && !(child instanceof Move)) {// If action is MOV, its children must be MOV.
return false;
}
// if (parent instanceof Move && !(child instanceof Move)) {// If action is MOV, its children must be MOV.
// return false;
// }
if (parent instanceof Delete && !(child instanceof Delete)) {// If action is DEL, its children must be DEL.
return false;
}
src/main/java/edu/lu/uni/serval/fixminer/ediff/TestInputCases.java
+96 -3
View File
@@ -71,8 +71,9 @@ public class TestInputCases {
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("wireshark_a9e926_877728_epan#dissectors#packet-ndps.c");//wrong
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_041867_5d66c3_ext#pdo#pdo_dbh.c");//wrong
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_d810cf_2d8fd4_Zend#zend_builtin_functions.c");//wrong
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_c56492_008fb2_sapi#phpdbg#phpdbg.c");//wrong
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_c56492_008fb2_sapi#phpdbg#phpdbg.c");//wrong
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("wireshark_96ba09_755c08_epan#dissectors#packet-gsm_a_rr.c");//wrong
//php-src_acd809_1d3d39_ext#standard#scanf.c
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_67a100_505f61_TSRM#tsrm_virtual_cwd.c");//
// List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("cpython_2cf5d3_9a0d7a_Objects#object.c");//
@@ -82,10 +83,102 @@ public class TestInputCases {
// String s = EDiffHelper.getShapeTree(hierarchicalActionSets.get(0), false).toStaticHashString();
// String s1 = EDiffHelper.getShapeTree(hierarchicalActionSets1.get(0), false).toStaticHashString();
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"");
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD if@@if gsm_rr_csn_HL_flag tvb subtree tvb_len bit_offset ++ \"Priority 2\" \"Present\" \"Not present\" @TO@ if gsm_rr_csn_HL_flag tvb subtree tvb_len bit_offset ++ \"Priority 2\" \"Present\" \"Not present\" item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @AT@ 157870 @LENGTH@ 92\n" +
"---UPD then@@ @TO@ item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @AT@ -1 @LENGTH@ 0\n" +
"------MOV block@@item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @TO@ then@@ @AT@ 157973 @LENGTH@ 152\n");
}
@Test
public void test_wireshark_96ba09_755c08() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("wireshark_96ba09_755c08_epan#dissectors#packet-gsm_a_rr.c");
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD if@@if gsm_rr_csn_HL_flag tvb subtree tvb_len bit_offset ++ \"Priority 2\" \"Present\" \"Not present\" @TO@ if gsm_rr_csn_HL_flag tvb subtree tvb_len bit_offset ++ \"Priority 2\" \"Present\" \"Not present\" item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @AT@ 157870 @LENGTH@ 92\n" +
"---UPD then@@ @TO@ item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @AT@ -1 @LENGTH@ 0\n" +
"------MOV block@@item2 = proto_tree_add_bits_item subtree hf_gsm_a_call_prio tvb bit_offset 3 FALSE bit_offset += 3 proto_item_append_text item2 \" for Mobile Identity 2\" @TO@ then@@ @AT@ 157973 @LENGTH@ 152\n");
}
@Test
public void test_php_src_cf4a29_40becd() throws IOException {//todo upd mov with delete (get rid of delete
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_cf4a29_40becd_main#safe_mode.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD if@@if mode == CHECKUID_DISALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename return 0 elseif if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename @TO@ if mode == CHECKUID_DISALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename return 0 elseif if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename return 1 @AT@ 2519 @LENGTH@ 204\n" +
"---UPD elseif@@elseif if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename @TO@ elseif if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename return 1 @AT@ 2651 @LENGTH@ 99\n" +
"------UPD if@@if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename @TO@ if mode == CHECKUID_ALLOW_FILE_NOT_EXISTS php_error E_WARNING \"Unable to access %s\" filename return 1 @AT@ 2651 @LENGTH@ 92\n" +
"---------UPD then@@php_error E_WARNING \"Unable to access %s\" filename @TO@ php_error E_WARNING \"Unable to access %s\" filename return 1 @AT@ 2696 @LENGTH@ 50\n" +
"------------UPD block@@php_error E_WARNING \"Unable to access %s\" filename @TO@ php_error E_WARNING \"Unable to access %s\" filename return 1 @AT@ 2696 @LENGTH@ 50\n" +
"---------------MOV return@@return 1 @TO@ block@@php_error E_WARNING \"Unable to access %s\" filename @AT@ 2756 @LENGTH@ 8\n");
}
@Test
public void test_cpython_1a8501_c47253() throws IOException {//todo wrong
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("cpython_1a8501_c47253_Modules#signalmodule.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"");
}
@Test
public void test_cpython_58fb90_c9e435() throws IOException {//TODO definitely wrong
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("cpython_58fb90_c9e435_Modules#_stringio.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),2);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"");
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"");
}
@Test
public void test_cpython_1c76b7_d6056b() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("cpython_1c76b7_d6056b_Modules#faulthandler.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD function@@static void faulthandler_thread void * unused PyLockStatus st const char * errmsg PyThreadState * current int ok do thread . running = 0 PyThread_release_lock thread . join_event PyThread_release_lock thread . cancel_event @TO@ static void faulthandler_thread void * unused PyLockStatus st const char * errmsg PyThreadState * current int ok do thread . running = 0 PyThread_release_lock thread . join_event @AT@ 10367 @LENGTH@ 223\n" +
"---UPD block@@PyLockStatus st const char * errmsg PyThreadState * current int ok do thread . running = 0 PyThread_release_lock thread . join_event PyThread_release_lock thread . cancel_event @TO@ PyLockStatus st const char * errmsg PyThreadState * current int ok do thread . running = 0 PyThread_release_lock thread . join_event @AT@ 10413 @LENGTH@ 177\n");
Assert.assertEquals(hierarchicalActionSets.get(1).toString(),"MOV expr_stmt@@PyThread_release_lock thread . cancel_event @TO@ block@@break; @AT@ 11259 @LENGTH@ 43\n");
}
@Test
public void test_php_src_acd809_1d3d39() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_acd809_1d3d39_ext#standard#scanf.c");
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD switch@@* ch 'n' if ! ( flags & SCAN_SUPPRESS ) if numVars zend_uint refcount current = args ][objIndex ++ refcount = ( * current ) -> refcount zval_dtor * current ZVAL_LONG * current long string - baseString ( * current ) -> refcount = refcount ( * current ) -> is_ref = 1 else add_index_long * return_value objIndex ++ string - baseString nconversions ++ continue; 'd' 'D' op = 'i' base = 10 fn = ( long * ) strtol break; 'i' op = 'i' base = 0 fn = ( long * ) strtol break; 'o' op = 'i' base = 8 fn = ( long * ) strtol break; 'x' op = 'i' base = 16 fn = ( long * ) strtol break; 'u' op = 'i' base = 10 flags |= SCAN_UNSIGNED fn = ( long * ) strtoul break; 'f' 'e' 'E' 'g' op = 'f' break; 's' op = 's' break; 'c' op = 's' flags |= SCAN_NOSKIP if 0 == width width = 1 break; '[' op = '[' flags |= SCAN_NOSKIP break; @TO@ * ch 'n' if ! ( flags & SCAN_SUPPRESS ) if numVars zend_uint refcount current = args ][objIndex ++ refcount = ( * current ) -> refcount zval_dtor * current ZVAL_LONG * current long string - baseString ( * current ) -> refcount = refcount ( * current ) -> is_ref = 1 else add_index_long * return_value objIndex ++ string - baseString nconversions ++ continue; 'd' 'D' op = 'i' base = 10 fn = ( long * ) strtol break; 'i' op = 'i' base = 0 fn = ( long * ) strtol break; 'o' op = 'i' base = 8 fn = ( long * ) strtol break; 'x' 'X' op = 'i' base = 16 fn = ( long * ) strtol break; 'u' op = 'i' base = 10 flags |= SCAN_UNSIGNED fn = ( long * ) strtoul break; 'f' 'e' 'E' 'g' op = 'f' break; 's' op = 's' break; 'c' op = 's' flags |= SCAN_NOSKIP if 0 == width width = 1 break; '[' op = '[' flags |= SCAN_NOSKIP break; @AT@ 19173 @LENGTH@ 807\n" +
"---UPD block@@'n' if ! ( flags & SCAN_SUPPRESS ) if numVars zend_uint refcount current = args ][objIndex ++ refcount = ( * current ) -> refcount zval_dtor * current ZVAL_LONG * current long string - baseString ( * current ) -> refcount = refcount ( * current ) -> is_ref = 1 else add_index_long * return_value objIndex ++ string - baseString nconversions ++ continue; 'd' 'D' op = 'i' base = 10 fn = ( long * ) strtol break; 'i' op = 'i' base = 0 fn = ( long * ) strtol break; 'o' op = 'i' base = 8 fn = ( long * ) strtol break; 'x' op = 'i' base = 16 fn = ( long * ) strtol break; 'u' op = 'i' base = 10 flags |= SCAN_UNSIGNED fn = ( long * ) strtoul break; 'f' 'e' 'E' 'g' op = 'f' break; 's' op = 's' break; 'c' op = 's' flags |= SCAN_NOSKIP if 0 == width width = 1 break; '[' op = '[' flags |= SCAN_NOSKIP break; @TO@ 'n' if ! ( flags & SCAN_SUPPRESS ) if numVars zend_uint refcount current = args ][objIndex ++ refcount = ( * current ) -> refcount zval_dtor * current ZVAL_LONG * current long string - baseString ( * current ) -> refcount = refcount ( * current ) -> is_ref = 1 else add_index_long * return_value objIndex ++ string - baseString nconversions ++ continue; 'd' 'D' op = 'i' base = 10 fn = ( long * ) strtol break; 'i' op = 'i' base = 0 fn = ( long * ) strtol break; 'o' op = 'i' base = 8 fn = ( long * ) strtol break; 'x' 'X' op = 'i' base = 16 fn = ( long * ) strtol break; 'u' op = 'i' base = 10 flags |= SCAN_UNSIGNED fn = ( long * ) strtoul break; 'f' 'e' 'E' 'g' op = 'f' break; 's' op = 's' break; 'c' op = 's' flags |= SCAN_NOSKIP if 0 == width width = 1 break; '[' op = '[' flags |= SCAN_NOSKIP break; @AT@ 19179 @LENGTH@ 802\n" +
"------INS case@@'X' @TO@ block@@'n' if ! ( flags & SCAN_SUPPRESS ) if numVars zend_uint refcount current = args ][objIndex ++ refcount = ( * current ) -> refcount zval_dtor * current ZVAL_LONG * current long string - baseString ( * current ) -> refcount = refcount ( * current ) -> is_ref = 1 else add_index_long * return_value objIndex ++ string - baseString nconversions ++ continue; 'd' 'D' op = 'i' base = 10 fn = ( long * ) strtol break; 'i' op = 'i' base = 0 fn = ( long * ) strtol break; 'o' op = 'i' base = 8 fn = ( long * ) strtol break; 'x' op = 'i' base = 16 fn = ( long * ) strtol break; 'u' op = 'i' base = 10 flags |= SCAN_UNSIGNED fn = ( long * ) strtoul break; 'f' 'e' 'E' 'g' op = 'f' break; 's' op = 's' break; 'c' op = 's' flags |= SCAN_NOSKIP if 0 == width width = 1 break; '[' op = '[' flags |= SCAN_NOSKIP break; @AT@ 19912 @LENGTH@ 3\n" +
"---------INS expr@@'X' @TO@ case@@'X' @AT@ 19917 @LENGTH@ 3\n" +
"------------INS literal@@'X' @TO@ expr@@'X' @AT@ 19917 @LENGTH@ 3\n");
}
@Test
public void test_lighttpd14_f27b8d_4a86d3() throws IOException {//TODO not sure
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("lighttpd1.4_f27b8d_4a86d3_src#connections.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),3);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD block@@400 505 207 break; default: con -> http_status = 501 break; @TO@ 400 414 505 207 break; default: con -> http_status = 501 break; @AT@ 8385 @LENGTH@ 59\n" +
"---INS case@@414 @TO@ block@@400 505 207 break; default: con -> http_status = 501 break; @AT@ 8421 @LENGTH@ 3\n" +
"------INS expr@@414 @TO@ case@@414 @AT@ 8426 @LENGTH@ 3\n" +
"---------INS literal@@414 @TO@ expr@@414 @AT@ 8426 @LENGTH@ 3\n");
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD expr_stmt@@log_error_write srv __FILE__ __LINE__ \"sd\" \"http-header larger then 64k -> disconnected\" chunkqueue_length cq @TO@ log_error_write srv __FILE__ __LINE__ \"s\" \"oversized request-header -> sending Status 414\" @AT@ 23540 @LENGTH@ 109\n" +
"---UPD expr@@log_error_write srv __FILE__ __LINE__ \"sd\" \"http-header larger then 64k -> disconnected\" chunkqueue_length cq @TO@ log_error_write srv __FILE__ __LINE__ \"s\" \"oversized request-header -> sending Status 414\" @AT@ 23540 @LENGTH@ 109\n" +
"------UPD call@@log_error_write srv __FILE__ __LINE__ \"sd\" \"http-header larger then 64k -> disconnected\" chunkqueue_length cq @TO@ log_error_write srv __FILE__ __LINE__ \"s\" \"oversized request-header -> sending Status 414\" @AT@ 23540 @LENGTH@ 109\n" +
"---------UPD argument_list@@srv __FILE__ __LINE__ \"sd\" \"http-header larger then 64k -> disconnected\" chunkqueue_length cq @TO@ srv __FILE__ __LINE__ \"s\" \"oversized request-header -> sending Status 414\" @AT@ 23555 @LENGTH@ 93\n" +
"------------UPD argument@@\"sd\" @TO@ \"s\" @AT@ 23581 @LENGTH@ 4\n" +
"---------------UPD expr@@\"sd\" @TO@ \"s\" @AT@ 23581 @LENGTH@ 4\n" +
"------------------UPD literal@@\"sd\" @TO@ \"s\" @AT@ 23581 @LENGTH@ 4\n" +
"------------UPD argument@@\"http-header larger then 64k -> disconnected\" @TO@ \"oversized request-header -> sending Status 414\" @AT@ 23587 @LENGTH@ 45\n" +
"---------------UPD expr@@\"http-header larger then 64k -> disconnected\" @TO@ \"oversized request-header -> sending Status 414\" @AT@ 23587 @LENGTH@ 45\n" +
"------------------UPD literal@@\"http-header larger then 64k -> disconnected\" @TO@ \"oversized request-header -> sending Status 414\" @AT@ 23587 @LENGTH@ 45\n" +
"------------DEL argument@@chunkqueue_length cq @AT@ 23634 @LENGTH@ 20\n" +
"---------------DEL expr@@chunkqueue_length cq @AT@ 23634 @LENGTH@ 20\n" +
"------------------DEL call@@chunkqueue_length cq @AT@ 23634 @LENGTH@ 20\n" +
"---------------------DEL name@@chunkqueue_length @AT@ 23634 @LENGTH@ 17\n" +
"---------------------DEL argument_list@@cq @AT@ 23651 @LENGTH@ 2\n" +
"------------------------DEL argument@@cq @AT@ 23652 @LENGTH@ 2\n" +
"---------------------------DEL expr@@cq @AT@ 23652 @LENGTH@ 2\n" +
"------------------------------DEL name@@cq @AT@ 23652 @LENGTH@ 2\n");
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD expr_stmt@@connection_set_state srv con CON_STATE_REQUEST_END @TO@ connection_set_state srv con CON_STATE_HANDLE_REQUEST @AT@ 23741 @LENGTH@ 50\n" +
"---UPD expr@@connection_set_state srv con CON_STATE_REQUEST_END @TO@ connection_set_state srv con CON_STATE_HANDLE_REQUEST @AT@ 23741 @LENGTH@ 50\n" +
"------UPD call@@connection_set_state srv con CON_STATE_REQUEST_END @TO@ connection_set_state srv con CON_STATE_HANDLE_REQUEST @AT@ 23741 @LENGTH@ 50\n" +
"---------UPD argument_list@@srv con CON_STATE_REQUEST_END @TO@ srv con CON_STATE_HANDLE_REQUEST @AT@ 23761 @LENGTH@ 29\n" +
"------------UPD argument@@CON_STATE_REQUEST_END @TO@ CON_STATE_HANDLE_REQUEST @AT@ 23772 @LENGTH@ 21\n" +
"---------------UPD expr@@CON_STATE_REQUEST_END @TO@ CON_STATE_HANDLE_REQUEST @AT@ 23772 @LENGTH@ 21\n" +
"------------------UPD name@@CON_STATE_REQUEST_END @TO@ CON_STATE_HANDLE_REQUEST @AT@ 23772 @LENGTH@ 21\n");
}
@Test
public void test_wireshark_87646b_2cc0fb() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("wireshark_87646b_2cc0fb_epan#proto.c");//wrong
Assert.assertEquals(hierarchicalActionSets.size(),1);
}
@Test
public void test_php_src_a0a56e_7afbb7() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("php-src_a0a56e_7afbb7_ext#com_dotnet#com_extension.c");//ok
Assert.assertEquals(hierarchicalActionSets.size(),1);
src/main/java/edu/lu/uni/serval/fixminer/ediff/TestRealCases.java
+88 -57
View File
@@ -31,12 +31,12 @@ public class TestRealCases {
"------INS expr@@d = 0 @TO@ expr_stmt@@d = 0 @AT@ 548 @LENGTH@ 5\n" +
"---------INS name@@d @TO@ expr@@d = 0 @AT@ 548 @LENGTH@ 1\n" +
"---------INS operator@@= @TO@ expr@@d = 0 @AT@ 549 @LENGTH@ 1\n" +
"---------INS literal@@0 @TO@ expr@@d = 0 @AT@ 550 @LENGTH@ 1\n" +
"---------INS literal:number@@0 @TO@ expr@@d = 0 @AT@ 550 @LENGTH@ 1\n" +
"---INS expr_stmt@@h = 0 @TO@ block@@if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d == 3 || h == 3 printf \"YES\" return 0 @AT@ 553 @LENGTH@ 5\n" +
"------INS expr@@h = 0 @TO@ expr_stmt@@h = 0 @AT@ 553 @LENGTH@ 5\n" +
"---------INS name@@h @TO@ expr@@h = 0 @AT@ 553 @LENGTH@ 1\n" +
"---------INS operator@@= @TO@ expr@@h = 0 @AT@ 554 @LENGTH@ 1\n" +
"---------INS literal@@0 @TO@ expr@@h = 0 @AT@ 555 @LENGTH@ 1\n");
"---------INS literal:number@@0 @TO@ expr@@h = 0 @AT@ 555 @LENGTH@ 1\n");
}
@@ -44,17 +44,16 @@ public class TestRealCases {
public void test_287_A_14208521_14208532() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("287-A-14208521-14208532.c");
Assert.assertEquals(hierarchicalActionSets.size(),2);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD block@@ if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" 0 @TO@ if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" 0 d = 0 h = 0 @AT@ 199 @LENGTH@ 347\n" +
"---INS expr_stmt@@d = 0 @TO@ block@@ if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" 0 @AT@ 548 @LENGTH@ 5\n" +
"------INS expr@@d = 0 @TO@ expr_stmt@@d = 0 @AT@ 548 @LENGTH@ 5\n" +
"---------INS name@@d @TO@ expr@@d = 0 @AT@ 548 @LENGTH@ 1\n" +
"---------INS operator@@= @TO@ expr@@d = 0 @AT@ 549 @LENGTH@ 1\n" +
"---------INS literal@@0 @TO@ expr@@d = 0 @AT@ 550 @LENGTH@ 1\n" +
"---INS expr_stmt@@h = 0 @TO@ block@@ if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" 0 @AT@ 553 @LENGTH@ 5\n" +
"------INS expr@@h = 0 @TO@ expr_stmt@@h = 0 @AT@ 553 @LENGTH@ 5\n" +
"---------INS name@@h @TO@ expr@@h = 0 @AT@ 553 @LENGTH@ 1\n" +
"---------INS operator@@= @TO@ expr@@h = 0 @AT@ 554 @LENGTH@ 1\n" +
"---------INS literal@@0 @TO@ expr@@h = 0 @AT@ 555 @LENGTH@ 1\n");
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"INS expr_stmt@@d = 0 @TO@ block@@if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" return 0 @AT@ 548 @LENGTH@ 5\n" +
"---INS expr@@d = 0 @TO@ expr_stmt@@d = 0 @AT@ 548 @LENGTH@ 5\n" +
"------INS name@@d @TO@ expr@@d = 0 @AT@ 548 @LENGTH@ 1\n" +
"------INS operator@@= @TO@ expr@@d = 0 @AT@ 549 @LENGTH@ 1\n" +
"------INS literal:number@@0 @TO@ expr@@d = 0 @AT@ 550 @LENGTH@ 1\n");
Assert.assertEquals(hierarchicalActionSets.get(1).toString(),"INS expr_stmt@@h = 0 @TO@ block@@if g ][i ][j == '.' d ++ else h ++ if g ][i ][j + 1 == '.' d ++ else h ++ if g ][i + 1 ][j == '.' d ++ else h ++ if g ][i + 1 ][j + 1 == '.' d ++ else h ++ if d >= 3 || h >= 3 printf \"YES\" return 0 @AT@ 553 @LENGTH@ 5\n" +
"---INS expr@@h = 0 @TO@ expr_stmt@@h = 0 @AT@ 553 @LENGTH@ 5\n" +
"------INS name@@h @TO@ expr@@h = 0 @AT@ 553 @LENGTH@ 1\n" +
"------INS operator@@= @TO@ expr@@h = 0 @AT@ 554 @LENGTH@ 1\n" +
"------INS literal:number@@0 @TO@ expr@@h = 0 @AT@ 555 @LENGTH@ 1\n");
}
@@ -91,23 +90,15 @@ public class TestRealCases {
@Test
public void test_680_A_18343132_18343191() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("680-A-18343132-18343191.c");
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD block@@ int i a ][5 b ][101 0 t 0 temp max 0 for i = 0 i < 5 i ++ scanf \"%d\" & a ][i b ][a ][i ++ t += a ][i for i = 0 i < 5 i ++ if b ][a ][i == 3 max = 3 * a ][i break; for i = 0 i < 5 i ++ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp break; printf \"%d\" t - max 0 @TO@ int i a ][5 b ][101 0 t 0 temp max 0 for i = 0 i < 5 i ++ scanf \"%d\" & a ][i b ][a ][i ++ t += a ][i for i = 0 i < 5 i ++ if b ][a ][i >= 3 max = 3 * a ][i break; for i = 0 i < 5 i ++ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp printf \"%d\" t - max 0 @AT@ 50 @LENGTH@ 295\n" +
"---UPD for@@for i = 0 i < 5 i ++ if b ][a ][i == 3 max = 3 * a ][i break; @TO@ for i = 0 i < 5 i ++ if b ][a ][i >= 3 max = 3 * a ][i break; @AT@ 158 @LENGTH@ 63\n" +
"------UPD block@@ if b ][a ][i == 3 max = 3 * a ][i break; @TO@ if b ][a ][i >= 3 max = 3 * a ][i break; @AT@ 173 @LENGTH@ 44\n" +
"---------UPD if@@if b ][a ][i == 3 max = 3 * a ][i break; @TO@ if b ][a ][i >= 3 max = 3 * a ][i break; @AT@ 176 @LENGTH@ 41\n" +
"------------UPD condition@@ b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 176 @LENGTH@ 13\n" +
"---------------UPD expr@@b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 177 @LENGTH@ 14\n" +
"------------------UPD operator@@== @TO@ >= @AT@ 184 @LENGTH@ 2\n" +
"---UPD for@@for i = 0 i < 5 i ++ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp break; @TO@ for i = 0 i < 5 i ++ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp @AT@ 221 @LENGTH@ 90\n" +
"------UPD block@@ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp break; @TO@ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp @AT@ 236 @LENGTH@ 77\n" +
"---------UPD if@@if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp break; @TO@ if b ][a ][i == 2 temp = a ][i * 2 if temp > max max = temp @AT@ 239 @LENGTH@ 68\n" +
"------------UPD then@@ temp = a ][i * 2 if temp > max max = temp break; @TO@ temp = a ][i * 2 if temp > max max = temp @AT@ 253 @LENGTH@ 50\n" +
"---------------UPD block@@ temp = a ][i * 2 if temp > max max = temp break; @TO@ temp = a ][i * 2 if temp > max max = temp @AT@ 253 @LENGTH@ 57\n" +
"------------------UPD if@@if temp > max max = temp break; @TO@ if temp > max max = temp @AT@ 270 @LENGTH@ 32\n" +
"---------------------UPD then@@ max = temp break; @TO@ max = temp @AT@ 282 @LENGTH@ 18\n" +
"------------------------UPD block@@ max = temp break; @TO@ max = temp @AT@ 282 @LENGTH@ 24\n" +
"---------------------------DEL break@@break; @AT@ 296 @LENGTH@ 6\n");
Assert.assertEquals(hierarchicalActionSets.size(),2);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD if@@if b ][a ][i == 3 max = 3 * a ][i break; @TO@ if b ][a ][i >= 3 max = 3 * a ][i break; @AT@ 176 @LENGTH@ 40\n" +
"---UPD condition@@b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 176 @LENGTH@ 14\n" +
"------UPD expr@@b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 177 @LENGTH@ 14\n" +
"---------UPD operator@@== @TO@ >= @AT@ 184 @LENGTH@ 2\n");
Assert.assertEquals(hierarchicalActionSets.get(1).toString(),"UPD if@@if b ][a ][i == 3 max = 3 * a ][i break; @TO@ if b ][a ][i >= 3 max = 3 * a ][i break; @AT@ 176 @LENGTH@ 40\n" +
"---UPD condition@@b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 176 @LENGTH@ 14\n" +
"------UPD expr@@b ][a ][i == 3 @TO@ b ][a ][i >= 3 @AT@ 177 @LENGTH@ 14\n" +
"---------UPD operator@@== @TO@ >= @AT@ 184 @LENGTH@ 2\n");
}
@@ -146,7 +137,7 @@ public class TestRealCases {
"------------UPD index@@][j + 1 @TO@ ][j @AT@ 591 @LENGTH@ 7\n" +
"---------------UPD expr@@[j + 1 @TO@ [j @AT@ 591 @LENGTH@ 6\n" +
"------------------DEL operator@@+ @AT@ 592 @LENGTH@ 1\n" +
"------------------DEL literal@@1 @AT@ 593 @LENGTH@ 1\n");
"------------------DEL literal:number@@1 @AT@ 593 @LENGTH@ 1\n");
}
@@ -185,7 +176,7 @@ public class TestRealCases {
"---------INS expr@@a == 784262 @TO@ condition@@a == 784262 @AT@ 878 @LENGTH@ 11\n" +
"------------INS name@@a @TO@ expr@@a == 784262 @AT@ 878 @LENGTH@ 1\n" +
"------------INS operator@@== @TO@ expr@@a == 784262 @AT@ 879 @LENGTH@ 2\n" +
"------------INS literal@@784262 @TO@ expr@@a == 784262 @AT@ 881 @LENGTH@ 6\n" +
"------------INS literal:number@@784262 @TO@ expr@@a == 784262 @AT@ 881 @LENGTH@ 6\n" +
"------INS then@@printf \"4079\\n\" @TO@ if@@if a == 784262 printf \"4079\\n\" @AT@ 901 @LENGTH@ 15\n" +
"---------INS block@@printf \"4079\\n\" @TO@ then@@printf \"4079\\n\" @AT@ 901 @LENGTH@ 15\n" +
"------------INS expr_stmt@@printf \"4079\\n\" @TO@ block@@printf \"4079\\n\" @AT@ 901 @LENGTH@ 15\n" +
@@ -195,7 +186,7 @@ public class TestRealCases {
"---------------------INS argument_list@@\"4079\\n\" @TO@ call@@printf \"4079\\n\" @AT@ 907 @LENGTH@ 8\n" +
"------------------------INS argument@@\"4079\\n\" @TO@ argument_list@@\"4079\\n\" @AT@ 908 @LENGTH@ 8\n" +
"---------------------------INS expr@@\"4079\\n\" @TO@ argument@@\"4079\\n\" @AT@ 908 @LENGTH@ 8\n" +
"------------------------------INS literal@@\"4079\\n\" @TO@ expr@@\"4079\\n\" @AT@ 908 @LENGTH@ 8\n");
"------------------------------INS literal:string@@\"4079\\n\" @TO@ expr@@\"4079\\n\" @AT@ 908 @LENGTH@ 8\n");
}
@Test
@@ -209,14 +200,14 @@ public class TestRealCases {
"------------UPD index@@][( n + 1 ) / 2 @TO@ ][( n + 1 ) / 2 - 1 @AT@ 778 @LENGTH@ 15\n" +
"---------------UPD expr@@[( n + 1 ) / 2 @TO@ [( n + 1 ) / 2 - 1 @AT@ 778 @LENGTH@ 14\n" +
"------------------INS operator@@- @TO@ expr@@[( n + 1 ) / 2 @AT@ 785 @LENGTH@ 1\n" +
"------------------INS literal@@1 @TO@ expr@@[( n + 1 ) / 2 @AT@ 786 @LENGTH@ 1\n" +
"------------------INS literal:number@@1 @TO@ expr@@[( n + 1 ) / 2 @AT@ 786 @LENGTH@ 1\n" +
"---INS elseif@@elseif if n == 1 printf \"0\\n\" @TO@ if@@if array ][( n + 1 ) / 2 == x printf \"0\\n\" elseif if last < ( n + 1 ) / 2 printf \"%d\\n\" n - 2 * last elseif if first > ( n + 1 ) / 2 printf \"%d\\n\" 2 * first - n - 1 @AT@ 925 @LENGTH@ 29\n" +
"------INS if@@if n == 1 printf \"0\\n\" @TO@ elseif@@elseif if n == 1 printf \"0\\n\" @AT@ 925 @LENGTH@ 22\n" +
"---------INS condition@@n == 1 @TO@ if@@if n == 1 printf \"0\\n\" @AT@ 925 @LENGTH@ 6\n" +
"------------INS expr@@n == 1 @TO@ condition@@n == 1 @AT@ 926 @LENGTH@ 6\n" +
"---------------INS name@@n @TO@ expr@@n == 1 @AT@ 926 @LENGTH@ 1\n" +
"---------------INS operator@@== @TO@ expr@@n == 1 @AT@ 927 @LENGTH@ 2\n" +
"---------------INS literal@@1 @TO@ expr@@n == 1 @AT@ 929 @LENGTH@ 1\n" +
"---------------INS literal:number@@1 @TO@ expr@@n == 1 @AT@ 929 @LENGTH@ 1\n" +
"---------INS then@@printf \"0\\n\" @TO@ if@@if n == 1 printf \"0\\n\" @AT@ 932 @LENGTH@ 12\n" +
"------------INS block@@printf \"0\\n\" @TO@ then@@printf \"0\\n\" @AT@ 932 @LENGTH@ 12\n" +
"---------------INS expr_stmt@@printf \"0\\n\" @TO@ block@@printf \"0\\n\" @AT@ 932 @LENGTH@ 12\n" +
@@ -226,7 +217,7 @@ public class TestRealCases {
"------------------------INS argument_list@@\"0\\n\" @TO@ call@@printf \"0\\n\" @AT@ 938 @LENGTH@ 5\n" +
"---------------------------INS argument@@\"0\\n\" @TO@ argument_list@@\"0\\n\" @AT@ 939 @LENGTH@ 5\n" +
"------------------------------INS expr@@\"0\\n\" @TO@ argument@@\"0\\n\" @AT@ 939 @LENGTH@ 5\n" +
"---------------------------------INS literal@@\"0\\n\" @TO@ expr@@\"0\\n\" @AT@ 939 @LENGTH@ 5\n");
"---------------------------------INS literal:string@@\"0\\n\" @TO@ expr@@\"0\\n\" @AT@ 939 @LENGTH@ 5\n");
}
@@ -243,7 +234,7 @@ public class TestRealCases {
"------------INS expr@@[j @TO@ index@@][j @AT@ 379 @LENGTH@ 2\n" +
"---------------INS name@@[j @TO@ expr@@[j @AT@ 379 @LENGTH@ 2\n" +
"------INS operator@@= @TO@ expr@@a ][j = 0 @AT@ 381 @LENGTH@ 1\n" +
"------INS literal@@0 @TO@ expr@@a ][j = 0 @AT@ 382 @LENGTH@ 1\n");
"------INS literal:number@@0 @TO@ expr@@a ][j = 0 @AT@ 382 @LENGTH@ 1\n");
}
@@ -261,7 +252,7 @@ public class TestRealCases {
"---------------INS expr@@[i @TO@ index@@][i @AT@ 243 @LENGTH@ 2\n" +
"------------------INS name@@[i @TO@ expr@@[i @AT@ 243 @LENGTH@ 2\n" +
"---------INS operator@@!= @TO@ expr@@ara ][i >= ara ][k - 1 @AT@ 245 @LENGTH@ 2\n" +
"---------INS literal@@0 @TO@ expr@@ara ][i >= ara ][k - 1 @AT@ 247 @LENGTH@ 1\n");
"---------INS literal:number@@0 @TO@ expr@@ara ][i >= ara ][k - 1 @AT@ 247 @LENGTH@ 1\n");
}
@@ -272,12 +263,12 @@ public class TestRealCases {
Assert.assertEquals(hierarchicalActionSets.size(),1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),
"INS else@@else i1 = 0 @TO@ if@@if input ][0 == '.' count = 1 @AT@ 295 @LENGTH@ 11\n" +
"---INS block@@i1 = 0 @TO@ else@@else i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"------INS expr_stmt@@i1 = 0 @TO@ block@@i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"---------INS expr@@i1 = 0 @TO@ expr_stmt@@i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"------------INS name@@i1 @TO@ expr@@i1 = 0 @AT@ 295 @LENGTH@ 2\n" +
"------------INS operator@@= @TO@ expr@@i1 = 0 @AT@ 297 @LENGTH@ 1\n" +
"------------INS literal@@0 @TO@ expr@@i1 = 0 @AT@ 298 @LENGTH@ 1\n");
"---INS block@@i1 = 0 @TO@ else@@else i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"------INS expr_stmt@@i1 = 0 @TO@ block@@i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"---------INS expr@@i1 = 0 @TO@ expr_stmt@@i1 = 0 @AT@ 295 @LENGTH@ 6\n" +
"------------INS name@@i1 @TO@ expr@@i1 = 0 @AT@ 295 @LENGTH@ 2\n" +
"------------INS operator@@= @TO@ expr@@i1 = 0 @AT@ 297 @LENGTH@ 1\n" +
"------------INS literal:number@@0 @TO@ expr@@i1 = 0 @AT@ 298 @LENGTH@ 1\n");
}
@@ -303,7 +294,7 @@ public class TestRealCases {
"---------UPD expr@@a < ( r1 % 10 ) @TO@ a < r1 @AT@ 193 @LENGTH@ 15\n" +
"------------DEL operator@@( @AT@ 195 @LENGTH@ 1\n" +
"------------DEL operator@@% @AT@ 198 @LENGTH@ 1\n" +
"------------DEL literal@@10 @AT@ 199 @LENGTH@ 2\n" +
"------------DEL literal:number@@10 @AT@ 199 @LENGTH@ 2\n" +
"------------DEL operator@@) @AT@ 201 @LENGTH@ 1\n");
}
@@ -333,7 +324,7 @@ public class TestRealCases {
"------UPD condition@@i < n @TO@ i < n - 1 @AT@ 163 @LENGTH@ 5\n" +
"---------UPD expr@@i < n @TO@ i < n - 1 @AT@ 163 @LENGTH@ 5\n" +
"------------INS operator@@- @TO@ expr@@i < n @AT@ 166 @LENGTH@ 1\n" +
"------------INS literal@@1 @TO@ expr@@i < n @AT@ 167 @LENGTH@ 1\n" +
"------------INS literal:number@@1 @TO@ expr@@i < n @AT@ 167 @LENGTH@ 1\n" +
"---UPD block@@if a ][i + 1 == a ][i d = d + 1 else f = f + 1 i = i + 2 @TO@ if a ][i + 1 == a ][i d = d + 1 else f = f + 1 @AT@ 173 @LENGTH@ 56\n" +
"------UPD if@@if a ][i + 1 == a ][i d = d + 1 else f = f + 1 i = i + 2 @TO@ if a ][i + 1 == a ][i d = d + 1 else f = f + 1 @AT@ 179 @LENGTH@ 56\n" +
"---------UPD else@@else f = f + 1 i = i + 2 @TO@ else f = f + 1 @AT@ 218 @LENGTH@ 24\n" +
@@ -344,7 +335,7 @@ public class TestRealCases {
"---------------------DEL operator@@= @AT@ 234 @LENGTH@ 1\n" +
"---------------------DEL name@@i @AT@ 235 @LENGTH@ 1\n" +
"---------------------DEL operator@@+ @AT@ 236 @LENGTH@ 1\n" +
"---------------------DEL literal@@2 @AT@ 237 @LENGTH@ 1\n");
"---------------------DEL literal:number@@2 @AT@ 237 @LENGTH@ 1\n");
}
@Test
@@ -368,10 +359,10 @@ public class TestRealCases {
"------------------------------------UPD argument_list@@\"%d %d\\n0 0 \\n%d \\n0 %d\\n\" n m n m @TO@ \"%d %d\\n0 0 \\n%d 0\\n0 %d\\n\" n m n m @AT@ 1324 @LENGTH@ 34\n" +
"---------------------------------------UPD argument@@\"%d %d\\n0 0 \\n%d \\n0 %d\\n\" @TO@ \"%d %d\\n0 0 \\n%d 0\\n0 %d\\n\" @AT@ 1325 @LENGTH@ 26\n" +
"------------------------------------------UPD expr@@\"%d %d\\n0 0 \\n%d \\n0 %d\\n\" @TO@ \"%d %d\\n0 0 \\n%d 0\\n0 %d\\n\" @AT@ 1325 @LENGTH@ 26\n" +
"---------------------------------------------UPD literal@@\"%d %d\\n0 0 \\n%d \\n0 %d\\n\" @TO@ \"%d %d\\n0 0 \\n%d 0\\n0 %d\\n\" @AT@ 1325 @LENGTH@ 26\n" +
"---------------------------------------------UPD literal:string@@\"%d %d\\n0 0 \\n%d \\n0 %d\\n\" @TO@ \"%d %d\\n0 0 \\n%d 0\\n0 %d\\n\" @AT@ 1325 @LENGTH@ 26\n" +
"---INS return@@return 0 @TO@ block@@int i j n m x i_temp 1 scanf \"%d %d\" & n & m if n == 0 printf \"0 1\\n\" printf \"0 %d\\n\" m printf \"0 0\\n\" printf \"0 %d\\n\" ( m - 1 ) return 0 elseif if m == 0 printf \"1 0\\n\" printf \"%d 0\\n\" n printf \"0 0\\n\" printf \"%d 0\\n\" ( n - 1 ) return 0 elseif if ( m == n ) && ( n == 1 ) printf \"%d %d\\n\" n m printf \"0 0\\n\" printf \"%d 0\\n\" n printf \"0 %d\\n\" ( m ) return 0 elseif if m == n if m + m * 1.41f > ( 2 * sqrt double m * m + ( m - 1 ) * ( m - 1 ) ) printf \"%d %d\\n\" n m printf \"0 0\\n\" printf \"%d 0\\n\" n printf \"0 %d\\n\" n else printf \"%d %d\\n\" n - 1 m printf \"0 0\\n\" printf \"%d %d\\n\" n m printf \"1 0\\n\" return 0 elseif if n < m if m + sqrt ( double ) n * n + m * m < ( 2 * sqrt double n - 1 * ( n - 1 ) + ( m ) * ( m ) ) printf \"%d %d\\n\" n - 1 m printf \"0 0\\n\" printf \"%d %d\\n\" n m printf \"1 0\\n\" return 0 else printf \"%d %d\\n0 0 \\n0 %d\\n%d 0\\n\" n m m n return 0 elseif if n > m if n + sqrt ( double ) n * n + m * m < ( 2 * sqrt ( double ) n * n + ( m - 1 ) * ( m - 1 ) ) printf \"%d %d\\n\" n m - 1 printf \"0 0\\n\" printf \"%d %d\\n\" n m printf \"0 1\\n\" return 0 else printf \"%d %d\\n0 0 \\n%d \\n0 %d\\n\" n m n m return 0 @AT@ 1385 @LENGTH@ 8\n" +
"------INS expr@@0 @TO@ return@@return 0 @AT@ 1392 @LENGTH@ 1\n" +
"---------INS literal@@0 @TO@ expr@@0 @AT@ 1392 @LENGTH@ 1\n");
"---------INS literal:number@@0 @TO@ expr@@0 @AT@ 1392 @LENGTH@ 1\n");
}
@@ -387,7 +378,7 @@ public class TestRealCases {
"---------UPD argument_list@@ans 86401 - dp ][k @TO@ ans 86400 - dp ][k @AT@ 386 @LENGTH@ 18\n" +
"------------UPD argument@@86401 - dp ][k @TO@ 86400 - dp ][k @AT@ 393 @LENGTH@ 14\n" +
"---------------UPD expr@@86401 - dp ][k @TO@ 86400 - dp ][k @AT@ 393 @LENGTH@ 14\n" +
"------------------UPD literal@@86401 @TO@ 86400 @AT@ 393 @LENGTH@ 5\n");
"------------------UPD literal:number@@86401 @TO@ 86400 @AT@ 393 @LENGTH@ 5\n");
}
@Test
@@ -402,7 +393,7 @@ public class TestRealCases {
"---------UPD argument_list@@negative / 2 @TO@ negative / 2.0 @AT@ 303 @LENGTH@ 12\n" +
"------------UPD argument@@negative / 2 @TO@ negative / 2.0 @AT@ 304 @LENGTH@ 12\n" +
"---------------UPD expr@@negative / 2 @TO@ negative / 2.0 @AT@ 304 @LENGTH@ 12\n" +
"------------------UPD literal@@2 @TO@ 2.0 @AT@ 313 @LENGTH@ 1\n");
"------------------UPD literal:number@@2 @TO@ 2.0 @AT@ 313 @LENGTH@ 1\n");
}
@@ -468,7 +459,7 @@ public class TestRealCases {
"---------------INS expr@@[i @TO@ index@@][i @AT@ 522 @LENGTH@ 2\n" +
"------------------INS name@@[i @TO@ expr@@[i @AT@ 522 @LENGTH@ 2\n" +
"---------INS operator@@!= @TO@ expr@@a ][i >= a ][k && i <= n @AT@ 524 @LENGTH@ 2\n" +
"---------INS literal@@0 @TO@ expr@@a ][i >= a ][k && i <= n @AT@ 526 @LENGTH@ 1\n");
"---------INS literal:number@@0 @TO@ expr@@a ][i >= a ][k && i <= n @AT@ 526 @LENGTH@ 1\n");
}
@@ -562,12 +553,12 @@ public class TestRealCases {
"---------DEL expr@@i = 0 @AT@ 454 @LENGTH@ 5\n" +
"------------DEL name@@i @AT@ 454 @LENGTH@ 1\n" +
"------------DEL operator@@= @AT@ 455 @LENGTH@ 1\n" +
"------------DEL literal@@0 @AT@ 456 @LENGTH@ 1\n" +
"------------DEL literal:number@@0 @AT@ 456 @LENGTH@ 1\n" +
"------DEL condition@@i < 10 @AT@ 458 @LENGTH@ 6\n" +
"---------DEL expr@@i < 10 @AT@ 458 @LENGTH@ 6\n" +
"------------DEL name@@i @AT@ 458 @LENGTH@ 1\n" +
"------------DEL operator@@< @AT@ 459 @LENGTH@ 1\n" +
"------------DEL literal@@10 @AT@ 460 @LENGTH@ 2\n" +
"------------DEL literal:number@@10 @AT@ 460 @LENGTH@ 2\n" +
"------DEL incr@@i ++ @AT@ 463 @LENGTH@ 4\n" +
"---------DEL expr@@i ++ @AT@ 463 @LENGTH@ 4\n" +
"------------DEL name@@i @AT@ 463 @LENGTH@ 1\n" +
@@ -580,7 +571,7 @@ public class TestRealCases {
"---------------DEL argument_list@@\"%d %d\\n\" num ][i tnum ][i @AT@ 483 @LENGTH@ 26\n" +
"------------------DEL argument@@\"%d %d\\n\" @AT@ 484 @LENGTH@ 9\n" +
"---------------------DEL expr@@\"%d %d\\n\" @AT@ 484 @LENGTH@ 9\n" +
"------------------------DEL literal@@\"%d %d\\n\" @AT@ 484 @LENGTH@ 9\n" +
"------------------------DEL literal:string@@\"%d %d\\n\" @AT@ 484 @LENGTH@ 9\n" +
"------------------DEL argument@@num ][i @AT@ 494 @LENGTH@ 7\n" +
"---------------------DEL expr@@num ][i @AT@ 494 @LENGTH@ 7\n" +
"------------------------DEL name@@num ][i @AT@ 494 @LENGTH@ 7\n" +
@@ -660,7 +651,7 @@ public class TestRealCases {
"------INS expr@@max == 0 @TO@ condition@@max == 0 @AT@ 693 @LENGTH@ 8\n" +
"---------INS name@@max @TO@ expr@@max == 0 @AT@ 693 @LENGTH@ 3\n" +
"---------INS operator@@== @TO@ expr@@max == 0 @AT@ 696 @LENGTH@ 2\n" +
"---------INS literal@@0 @TO@ expr@@max == 0 @AT@ 698 @LENGTH@ 1\n" +
"---------INS literal:number@@0 @TO@ expr@@max == 0 @AT@ 698 @LENGTH@ 1\n" +
"---INS then@@printf \"0\\n\" continue; @TO@ if@@if max == 0 printf \"0\\n\" continue; @AT@ 702 @LENGTH@ 22\n" +
"------INS block@@printf \"0\\n\" continue; @TO@ then@@printf \"0\\n\" continue; @AT@ 702 @LENGTH@ 22\n" +
"---------INS expr_stmt@@printf \"0\\n\" @TO@ block@@printf \"0\\n\" continue; @AT@ 703 @LENGTH@ 12\n" +
@@ -670,7 +661,7 @@ public class TestRealCases {
"------------------INS argument_list@@\"0\\n\" @TO@ call@@printf \"0\\n\" @AT@ 709 @LENGTH@ 5\n" +
"---------------------INS argument@@\"0\\n\" @TO@ argument_list@@\"0\\n\" @AT@ 710 @LENGTH@ 5\n" +
"------------------------INS expr@@\"0\\n\" @TO@ argument@@\"0\\n\" @AT@ 710 @LENGTH@ 5\n" +
"---------------------------INS literal@@\"0\\n\" @TO@ expr@@\"0\\n\" @AT@ 710 @LENGTH@ 5\n" +
"---------------------------INS literal:string@@\"0\\n\" @TO@ expr@@\"0\\n\" @AT@ 710 @LENGTH@ 5\n" +
"---------INS continue@@continue; @TO@ block@@printf \"0\\n\" continue; @AT@ 717 @LENGTH@ 9\n");
}
@@ -723,6 +714,46 @@ public class TestRealCases {
"------INS operator@@= @TO@ expr@@b ][x ][y = 1 @AT@ 262 @LENGTH@ 1\n");
}
@Test
public void test_254_B_2751488_2751528() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("254-B-2751488-2751528.c");
Assert.assertEquals(hierarchicalActionSets.size(), 1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD if@@if d <= 0 * m = * m - 1 * d = days ][* m @TO@ if * d <= 0 * m = * m - 1 * d = days ][* m @AT@ 197 @LENGTH@ 40\n" +
"---UPD condition@@d <= 0 @TO@ * d <= 0 @AT@ 197 @LENGTH@ 6\n" +
"------UPD expr@@d <= 0 @TO@ * d <= 0 @AT@ 198 @LENGTH@ 6\n" +
"---------INS operator@@* @TO@ expr@@d <= 0 @AT@ 198 @LENGTH@ 1\n");
}
//codeflaws_430-C-6594918-6595299.c
@Test
public void test_430_C_6594918_6595299() throws IOException {
List<HierarchicalActionSet> hierarchicalActionSets = getHierarchicalActionSets("430-C-6594918-6595299.c");
Assert.assertEquals(hierarchicalActionSets.size(), 1);
Assert.assertEquals(hierarchicalActionSets.get(0).toString(),"UPD block@@stk ][front ++ = nn -> v v ][nn -> v -> c = 0 if cc == 1 val ][nn -> v ++ @TO@ stk ][front ++ = nn -> v v ][nn -> v -> c = 0 val ][nn -> v += val ][stk ][rear @AT@ 1733 @LENGTH@ 73\n" +
"---DEL if@@if cc == 1 val ][nn -> v ++ @AT@ 1832 @LENGTH@ 27\n" +
"------DEL condition@@cc == 1 @AT@ 1832 @LENGTH@ 7\n" +
"---------DEL expr@@cc == 1 @AT@ 1833 @LENGTH@ 7\n" +
"------------DEL name@@cc @AT@ 1833 @LENGTH@ 2\n" +
"------------DEL operator@@== @AT@ 1835 @LENGTH@ 2\n" +
"------------DEL literal:number@@1 @AT@ 1837 @LENGTH@ 1\n" +
"------DEL then@@val ][nn -> v ++ @AT@ 1864 @LENGTH@ 16\n" +
"---------DEL block@@val ][nn -> v ++ @AT@ 1864 @LENGTH@ 16\n" +
"---MOV expr_stmt@@val ][nn -> v ++ @TO@ block@@stk ][front ++ = nn -> v v ][nn -> v -> c = 0 if cc == 1 val ][nn -> v ++ @AT@ 1864 @LENGTH@ 16\n" +
"------UPD expr_stmt@@val ][nn -> v ++ @TO@ val ][nn -> v += val ][stk ][rear @AT@ 1864 @LENGTH@ 16\n" +
"---------UPD expr@@val ][nn -> v ++ @TO@ val ][nn -> v += val ][stk ][rear @AT@ 1864 @LENGTH@ 16\n" +
"------------INS name@@val ][stk ][rear @TO@ expr@@val ][nn -> v ++ @AT@ 1842 @LENGTH@ 16\n" +
"---------------INS name@@val @TO@ name@@val ][stk ][rear @AT@ 1842 @LENGTH@ 3\n" +
"---------------INS index@@][stk ][rear @TO@ name@@val ][stk ][rear @AT@ 1846 @LENGTH@ 12\n" +
"------------------INS expr@@[stk ][rear @TO@ index@@][stk ][rear @AT@ 1846 @LENGTH@ 11\n" +
"---------------------INS name@@[stk ][rear @TO@ expr@@[stk ][rear @AT@ 1846 @LENGTH@ 11\n" +
"------------------------INS name@@[stk @TO@ name@@[stk ][rear @AT@ 1846 @LENGTH@ 4\n" +
"------------------------INS index@@][rear @TO@ name@@[stk ][rear @AT@ 1850 @LENGTH@ 6\n" +
"---------------------------INS expr@@[rear @TO@ index@@][rear @AT@ 1850 @LENGTH@ 5\n" +
"------------------------------INS name@@[rear @TO@ expr@@[rear @AT@ 1850 @LENGTH@ 5\n" +
"------------UPD operator@@++ @TO@ += @AT@ 1874 @LENGTH@ 2\n");
}
public List<HierarchicalActionSet> getHierarchicalActionSets(String s) throws IOException {
Properties appProps = new Properties();
appProps.load(new FileInputStream("src/main/resource/app.properties"));
src/main/resource/MF0012.local.app.properties
+2 -1
View File
@@ -4,7 +4,8 @@ numOfWorkers = 14
hunkLimit = 10
patchSize = 50
projectList = libtiff,php-src,cpython,wireshark,gzip,gmp,lighttpd1.4,lighttpd2
#projectList = libtiff,php-src,cpython,wireshark,gzip,gmp,lighttpd1.4,lighttpd2
projectList = codeflaws
#inputPath = /Users/anilkoyuncu/projects/gumInputLinux
#inputPath = /Users/anil.koyuncu/projects/fixminer/fixminer-data/gumInputLinux
src/main/resource/testFiles/codeflaws/prevFiles/prev_254-B-2751488-2751528.c
+45
View File
@@ -0,0 +1,45 @@
#include <stdio.h>
int days[25]={ 0,31,29,31,30,31,30,31,31,30,31,30,31,
31,28,31,30,31,30,31,31,30,31,30,31};
int map[25][32]={0};
void minus(int* m,int* d){
*d = *d -1;
if(d<=0){
*m = *m - 1;
*d = days[*m];
}
}
int main(int argc,char** argv){
int n;
int m=0,d=0,p=0,t=0;
int i,j,k;
int max=-1;
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d %d %d %d",&m,&d,&p,&t);
m+=12;
minus(&m,&d);
for(k=0;k<t;k++){
map[m][d]+=p;
minus(&m,&d);
//printf("%d %d\n",m,d);
}
}
/*for(i=0;i<25;i++){
printf("%d ",i);
for(j=0;j<32;j++){
printf("%d ",map[i][j]);
}
printf("\n");
}*/
for(i=0;i<25;i++){
for(j=0;j<32;j++){
if(max<map[i][j])
max=map[i][j];
}
}
printf("%d\n",max);
return 0;
}
src/main/resource/testFiles/codeflaws/prevFiles/prev_430-C-6594918-6595299.c
+96
View File
@@ -0,0 +1,96 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int cur[100010],tar[100010],val[100010],op,stk[100010],temp[100010];
struct node{
int v,c;
struct node *next;
};
void init(int n,struct node *p[n],struct node *v[n]){
int i=1;
while (i<n) {
v[i]=malloc(sizeof(struct node));
v[i]->v=i;
v[i]->next=NULL;
v[i]->c=1;
p[i]=NULL;
i++;
}
}
void create(int n,struct node *p[n],struct node *v[n],int x,int y){
struct node *a=malloc(sizeof(struct node)),*b=malloc(sizeof(struct node));
a->v=y;
b->v=x;
a->c=1;b->c=1;
a->next=p[x];
b->next=p[y];
p[x]=a;
p[y]=b;
}
int main(int argc, char *argv[]){
int n,i=1;
scanf("%d",&n);
struct node *p[n+1],*v[n+1];
init(n+1, p, v);
while (i<n) {
int a,b;
scanf("%d %d",&a,&b);
create(n+1, p, v, a, b);
create(n+1, p, v, b, a);
i++;
}
i=1;
while (i<=n) {
scanf("%d",&cur[i]);
i++;
}
i=1;
while (i<=n) {
scanf("%d",&tar[i]);
i++;
}
//dfs(n+1, p, v, 1);
int rear=0,front=1;
stk[rear]=1;
v[stk[rear]]->c=0;
while (rear<front) {
int cc=0;
if(((cur[stk[rear]]+val[stk[rear]])%2)!=tar[stk[rear]]){
val[stk[rear]]++;
temp[op]=stk[rear];
//printf("k %d \n",val[stk[rear]]);
cc=1;
op++;
}
struct node *n=p[stk[rear]];
while (n!=NULL) {
if(v[n->v]->c==1){
stk[front++]=n->v;
v[n->v]->c=0;
}
struct node *nn=p[n->v];
while (nn!=NULL) {
if(v[nn->v]->c==1){
stk[front++]=nn->v;
v[nn->v]->c=0;
if(cc==1)
val[nn->v]++;
//printf("%d %d %d \n",stk[rear],nn->v,val[nn->v]);
}
nn=nn->next;
}
n=n->next;
}
rear++;
}
printf("%d\n",op);
i=0;
while (i<op) {
printf("%d\n",temp[i]);
i++;
}
return 0;
}
src/main/resource/testFiles/codeflaws/revFiles/254-B-2751488-2751528.c
+45
View File
@@ -0,0 +1,45 @@
#include <stdio.h>
int days[25]={ 0,31,29,31,30,31,30,31,31,30,31,30,31,
31,28,31,30,31,30,31,31,30,31,30,31};
int map[25][32]={0};
void minus(int* m,int* d){
*d = *d -1;
if(*d<=0){
*m = *m - 1;
*d = days[*m];
}
}
int main(int argc,char** argv){
int n;
int m=0,d=0,p=0,t=0;
int i,j,k;
int max=-1;
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d %d %d %d",&m,&d,&p,&t);
m+=12;
minus(&m,&d);
for(k=0;k<t;k++){
map[m][d]+=p;
minus(&m,&d);
//printf("%d %d\n",m,d);
}
}
/*for(i=0;i<25;i++){
printf("%d ",i);
for(j=0;j<32;j++){
printf("%d ",map[i][j]);
}
printf("\n");
}*/
for(i=0;i<25;i++){
for(j=0;j<32;j++){
if(max<map[i][j])
max=map[i][j];
}
}
printf("%d\n",max);
return 0;
}
src/main/resource/testFiles/codeflaws/revFiles/430-C-6594918-6595299.c
+95
View File
@@ -0,0 +1,95 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int cur[100010],tar[100010],val[100010],op,stk[100010],temp[100010];
struct node{
int v,c;
struct node *next;
};
void init(int n,struct node *p[n],struct node *v[n]){
int i=1;
while (i<n) {
v[i]=malloc(sizeof(struct node));
v[i]->v=i;
v[i]->next=NULL;
v[i]->c=1;
p[i]=NULL;
i++;
}
}
void create(int n,struct node *p[n],struct node *v[n],int x,int y){
struct node *a=malloc(sizeof(struct node)),*b=malloc(sizeof(struct node));
a->v=y;
b->v=x;
a->c=1;b->c=1;
a->next=p[x];
b->next=p[y];
p[x]=a;
p[y]=b;
}
int main(int argc, char *argv[]){
int n,i=1;
scanf("%d",&n);
struct node *p[n+1],*v[n+1];
init(n+1, p, v);
while (i<n) {
int a,b;
scanf("%d %d",&a,&b);
create(n+1, p, v, a, b);
create(n+1, p, v, b, a);
i++;
}
i=1;
while (i<=n) {
scanf("%d",&cur[i]);
i++;
}
i=1;
while (i<=n) {
scanf("%d",&tar[i]);
i++;
}
//dfs(n+1, p, v, 1);
int rear=0,front=1;
stk[rear]=1;
v[stk[rear]]->c=0;
while (rear<front) {
int cc=0;
if(((cur[stk[rear]]+val[stk[rear]])%2)!=tar[stk[rear]]){
val[stk[rear]]++;
temp[op]=stk[rear];
//printf("k %d \n",val[stk[rear]]);
cc=1;
op++;
}
struct node *n=p[stk[rear]];
while (n!=NULL) {
if(v[n->v]->c==1){
stk[front++]=n->v;
v[n->v]->c=0;
}
struct node *nn=p[n->v];
while (nn!=NULL) {
if(v[nn->v]->c==1){
stk[front++]=nn->v;
v[nn->v]->c=0;
val[nn->v]+=val[stk[rear]];
//printf("%d %d %d \n",stk[rear],nn->v,val[nn->v]);
}
nn=nn->next;
}
n=n->next;
}
rear++;
}
printf("%d\n",op);
i=0;
while (i<op) {
printf("%d\n",temp[i]);
i++;
}
return 0;
}
src/main/resource/testFiles/cpython/prevFiles/prev_1a8501_c47253_Modules#signalmodule.c
+947
View File
@@ -0,0 +1,947 @@
/* Signal module -- many thanks to Lance Ellinghaus */
/* XXX Signals should be recorded per thread, now we have thread state. */
#include "Python.h"
#include "intrcheck.h"
#ifdef MS_WINDOWS
#include <process.h>
#endif
#include <signal.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifndef SIG_ERR
#define SIG_ERR ((PyOS_sighandler_t)(-1))
#endif
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
#define NSIG 12
#include <process.h>
#endif
#ifndef NSIG
# if defined(_NSIG)
# define NSIG _NSIG /* For BSD/SysV */
# elif defined(_SIGMAX)
# define NSIG (_SIGMAX + 1) /* For QNX */
# elif defined(SIGMAX)
# define NSIG (SIGMAX + 1) /* For djgpp */
# else
# define NSIG 64 /* Use a reasonable default value */
# endif
#endif
/*
NOTES ON THE INTERACTION BETWEEN SIGNALS AND THREADS
When threads are supported, we want the following semantics:
- only the main thread can set a signal handler
- any thread can get a signal handler
- signals are only delivered to the main thread
I.e. we don't support "synchronous signals" like SIGFPE (catching
this doesn't make much sense in Python anyway) nor do we support
signals as a means of inter-thread communication, since not all
thread implementations support that (at least our thread library
doesn't).
We still have the problem that in some implementations signals
generated by the keyboard (e.g. SIGINT) are delivered to all
threads (e.g. SGI), while in others (e.g. Solaris) such signals are
delivered to one random thread (an intermediate possibility would
be to deliver it to the main thread -- POSIX?). For now, we have
a working implementation that works in all three cases -- the
handler ignores signals if getpid() isn't the same as in the main
thread. XXX This is a hack.
GNU pth is a user-space threading library, and as such, all threads
run within the same process. In this case, if the currently running
thread is not the main_thread, send the signal to the main_thread.
*/
#ifdef WITH_THREAD
#include <sys/types.h> /* For pid_t */
#include "pythread.h"
static long main_thread;
static pid_t main_pid;
#endif
static struct {
int tripped;
PyObject *func;
} Handlers[NSIG];
static sig_atomic_t wakeup_fd = -1;
/* Speed up sigcheck() when none tripped */
static volatile sig_atomic_t is_tripped = 0;
static PyObject *DefaultHandler;
static PyObject *IgnoreHandler;
static PyObject *IntHandler;
/* On Solaris 8, gcc will produce a warning that the function
declaration is not a prototype. This is caused by the definition of
SIG_DFL as (void (*)())0; the correct declaration would have been
(void (*)(int))0. */
static PyOS_sighandler_t old_siginthandler = SIG_DFL;
#ifdef HAVE_GETITIMER
static PyObject *ItimerError;
/* auxiliary functions for setitimer/getitimer */
static void
timeval_from_double(double d, struct timeval *tv)
{
tv->tv_sec = floor(d);
tv->tv_usec = fmod(d, 1.0) * 1000000.0;
}
static inline double
double_from_timeval(struct timeval *tv)
{
return tv->tv_sec + (double)(tv->tv_usec / 1000000.0);
}
static PyObject *
itimer_retval(struct itimerval *iv)
{
PyObject *r, *v;
r = PyTuple_New(2);
if (r == NULL)
return NULL;
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_value)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 0, v);
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_interval)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 1, v);
return r;
}
#endif
static PyObject *
signal_default_int_handler(PyObject *self, PyObject *args)
{
PyErr_SetNone(PyExc_KeyboardInterrupt);
return NULL;
}
PyDoc_STRVAR(default_int_handler_doc,
"default_int_handler(...)\n\
\n\
The default handler for SIGINT installed by Python.\n\
It raises KeyboardInterrupt.");
static int
checksignals_witharg(void * unused)
{
return PyErr_CheckSignals();
}
static void
signal_handler(int sig_num)
{
#ifdef WITH_THREAD
#ifdef WITH_PTH
if (PyThread_get_thread_ident() != main_thread) {
pth_raise(*(pth_t *) main_thread, sig_num);
return;
}
#endif
/* See NOTES section above */
if (getpid() == main_pid) {
#endif
Handlers[sig_num].tripped = 1;
/* Set is_tripped after setting .tripped, as it gets
cleared in PyErr_CheckSignals() before .tripped. */
is_tripped = 1;
Py_AddPendingCall(checksignals_witharg, NULL);
if (wakeup_fd != -1)
write(wakeup_fd, "\0", 1);
#ifdef WITH_THREAD
}
#endif
#ifdef SIGCHLD
if (sig_num == SIGCHLD) {
/* To avoid infinite recursion, this signal remains
reset until explicit re-instated.
Don't clear the 'func' field as it is our pointer
to the Python handler... */
return;
}
#endif
PyOS_setsig(sig_num, signal_handler);
}
#ifdef HAVE_ALARM
static PyObject *
signal_alarm(PyObject *self, PyObject *args)
{
int t;
if (!PyArg_ParseTuple(args, "i:alarm", &t))
return NULL;
/* alarm() returns the number of seconds remaining */
return PyLong_FromLong((long)alarm(t));
}
PyDoc_STRVAR(alarm_doc,
"alarm(seconds)\n\
\n\
Arrange for SIGALRM to arrive after the given number of seconds.");
#endif
#ifdef HAVE_PAUSE
static PyObject *
signal_pause(PyObject *self)
{
Py_BEGIN_ALLOW_THREADS
(void)pause();
Py_END_ALLOW_THREADS
/* make sure that any exceptions that got raised are propagated
* back into Python
*/
if (PyErr_CheckSignals())
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
PyDoc_STRVAR(pause_doc,
"pause()\n\
\n\
Wait until a signal arrives.");
#endif
static PyObject *
signal_signal(PyObject *self, PyObject *args)
{
PyObject *obj;
int sig_num;
PyObject *old_handler;
void (*func)(int);
if (!PyArg_ParseTuple(args, "iO:signal", &sig_num, &obj))
return NULL;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"signal only works in main thread");
return NULL;
}
#endif
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (obj == IgnoreHandler)
func = SIG_IGN;
else if (obj == DefaultHandler)
func = SIG_DFL;
else if (!PyCallable_Check(obj)) {
PyErr_SetString(PyExc_TypeError,
"signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object");
return NULL;
}
else
func = signal_handler;
if (PyOS_setsig(sig_num, func) == SIG_ERR) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
old_handler = Handlers[sig_num].func;
Handlers[sig_num].tripped = 0;
Py_INCREF(obj);
Handlers[sig_num].func = obj;
return old_handler;
}
PyDoc_STRVAR(signal_doc,
"signal(sig, action) -> action\n\
\n\
Set the action for the given signal. The action can be SIG_DFL,\n\
SIG_IGN, or a callable Python object. The previous action is\n\
returned. See getsignal() for possible return values.\n\
\n\
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
the first is the signal number, the second is the interrupted stack frame.");
static PyObject *
signal_getsignal(PyObject *self, PyObject *args)
{
int sig_num;
PyObject *old_handler;
if (!PyArg_ParseTuple(args, "i:getsignal", &sig_num))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
old_handler = Handlers[sig_num].func;
Py_INCREF(old_handler);
return old_handler;
}
PyDoc_STRVAR(getsignal_doc,
"getsignal(sig) -> action\n\
\n\
Return the current action for the given signal. The return value can be:\n\
SIG_IGN -- if the signal is being ignored\n\
SIG_DFL -- if the default action for the signal is in effect\n\
None -- if an unknown handler is in effect\n\
anything else -- the callable Python object used as a handler");
#ifdef HAVE_SIGINTERRUPT
PyDoc_STRVAR(siginterrupt_doc,
"siginterrupt(sig, flag) -> None\n\
change system call restart behaviour: if flag is False, system calls\n\
will be restarted when interrupted by signal sig, else system calls\n\
will be interrupted.");
static PyObject *
signal_siginterrupt(PyObject *self, PyObject *args)
{
int sig_num;
int flag;
if (!PyArg_ParseTuple(args, "ii:siginterrupt", &sig_num, &flag))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (siginterrupt(sig_num, flag)<0) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
#endif
static PyObject *
signal_set_wakeup_fd(PyObject *self, PyObject *args)
{
struct stat buf;
int fd, old_fd;
if (!PyArg_ParseTuple(args, "i:set_wakeup_fd", &fd))
return NULL;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"set_wakeup_fd only works in main thread");
return NULL;
}
#endif
if (fd != -1 && fstat(fd, &buf) != 0) {
PyErr_SetString(PyExc_ValueError, "invalid fd");
return NULL;
}
old_fd = wakeup_fd;
wakeup_fd = fd;
return PyLong_FromLong(old_fd);
}
PyDoc_STRVAR(set_wakeup_fd_doc,
"set_wakeup_fd(fd) -> fd\n\
\n\
Sets the fd to be written to (with '\\0') when a signal\n\
comes in. A library can use this to wakeup select or poll.\n\
The previous fd is returned.\n\
\n\
The fd must be non-blocking.");
/* C API for the same, without all the error checking */
int
PySignal_SetWakeupFd(int fd)
{
int old_fd = wakeup_fd;
if (fd < 0)
fd = -1;
wakeup_fd = fd;
return old_fd;
}
#ifdef HAVE_SETITIMER
static PyObject *
signal_setitimer(PyObject *self, PyObject *args)
{
double first;
double interval = 0;
int which;
struct itimerval new, old;
if(!PyArg_ParseTuple(args, "id|d:setitimer", &which, &first, &interval))
return NULL;
timeval_from_double(first, &new.it_value);
timeval_from_double(interval, &new.it_interval);
/* Let OS check "which" value */
if (setitimer(which, &new, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(setitimer_doc,
"setitimer(which, seconds[, interval])\n\
\n\
Sets given itimer (one of ITIMER_REAL, ITIMER_VIRTUAL\n\
or ITIMER_PROF) to fire after value seconds and after\n\
that every interval seconds.\n\
The itimer can be cleared by setting seconds to zero.\n\
\n\
Returns old values as a tuple: (delay, interval).");
#endif
#ifdef HAVE_GETITIMER
static PyObject *
signal_getitimer(PyObject *self, PyObject *args)
{
int which;
struct itimerval old;
if (!PyArg_ParseTuple(args, "i:getitimer", &which))
return NULL;
if (getitimer(which, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(getitimer_doc,
"getitimer(which)\n\
\n\
Returns current value of given itimer.");
#endif
/* List of functions defined in the module */
static PyMethodDef signal_methods[] = {
#ifdef HAVE_ALARM
{"alarm", signal_alarm, METH_VARARGS, alarm_doc},
#endif
#ifdef HAVE_SETITIMER
{"setitimer", signal_setitimer, METH_VARARGS, setitimer_doc},
#endif
#ifdef HAVE_GETITIMER
{"getitimer", signal_getitimer, METH_VARARGS, getitimer_doc},
#endif
{"signal", signal_signal, METH_VARARGS, signal_doc},
{"getsignal", signal_getsignal, METH_VARARGS, getsignal_doc},
{"set_wakeup_fd", signal_set_wakeup_fd, METH_VARARGS, set_wakeup_fd_doc},
#ifdef HAVE_SIGINTERRUPT
{"siginterrupt", signal_siginterrupt, METH_VARARGS, siginterrupt_doc},
#endif
#ifdef HAVE_PAUSE
{"pause", (PyCFunction)signal_pause,
METH_NOARGS,pause_doc},
#endif
{"default_int_handler", signal_default_int_handler,
METH_VARARGS, default_int_handler_doc},
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(module_doc,
"This module provides mechanisms to use signal handlers in Python.\n\
\n\
Functions:\n\
\n\
alarm() -- cause SIGALRM after a specified time [Unix only]\n\
setitimer() -- cause a signal (described below) after a specified\n\
float time and the timer may restart then [Unix only]\n\
getitimer() -- get current value of timer [Unix only]\n\
signal() -- set the action for a given signal\n\
getsignal() -- get the signal action for a given signal\n\
pause() -- wait until a signal arrives [Unix only]\n\
default_int_handler() -- default SIGINT handler\n\
\n\
signal constants:\n\
SIG_DFL -- used to refer to the system default handler\n\
SIG_IGN -- used to ignore the signal\n\
NSIG -- number of defined signals\n\
SIGINT, SIGTERM, etc. -- signal numbers\n\
\n\
itimer constants:\n\
ITIMER_REAL -- decrements in real time, and delivers SIGALRM upon\n\
expiration\n\
ITIMER_VIRTUAL -- decrements only when the process is executing,\n\
and delivers SIGVTALRM upon expiration\n\
ITIMER_PROF -- decrements both when the process is executing and\n\
when the system is executing on behalf of the process.\n\
Coupled with ITIMER_VIRTUAL, this timer is usually\n\
used to profile the time spent by the application\n\
in user and kernel space. SIGPROF is delivered upon\n\
expiration.\n\
\n\n\
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
the first is the signal number, the second is the interrupted stack frame.");
static struct PyModuleDef signalmodule = {
PyModuleDef_HEAD_INIT,
"signal",
module_doc,
-1,
signal_methods,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit_signal(void)
{
PyObject *m, *d, *x;
int i;
#ifdef WITH_THREAD
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
#endif
/* Create the module and add the functions */
m = PyModule_Create(&signalmodule);
if (m == NULL)
return NULL;
/* Add some symbolic constants to the module */
d = PyModule_GetDict(m);
x = DefaultHandler = PyLong_FromVoidPtr((void *)SIG_DFL);
if (!x || PyDict_SetItemString(d, "SIG_DFL", x) < 0)
goto finally;
x = IgnoreHandler = PyLong_FromVoidPtr((void *)SIG_IGN);
if (!x || PyDict_SetItemString(d, "SIG_IGN", x) < 0)
goto finally;
x = PyLong_FromLong((long)NSIG);
if (!x || PyDict_SetItemString(d, "NSIG", x) < 0)
goto finally;
Py_DECREF(x);
x = IntHandler = PyDict_GetItemString(d, "default_int_handler");
if (!x)
goto finally;
Py_INCREF(IntHandler);
Handlers[0].tripped = 0;
for (i = 1; i < NSIG; i++) {
void (*t)(int);
t = PyOS_getsig(i);
Handlers[i].tripped = 0;
if (t == SIG_DFL)
Handlers[i].func = DefaultHandler;
else if (t == SIG_IGN)
Handlers[i].func = IgnoreHandler;
else
Handlers[i].func = Py_None; /* None of our business */
Py_INCREF(Handlers[i].func);
}
if (Handlers[SIGINT].func == DefaultHandler) {
/* Install default int handler */
Py_INCREF(IntHandler);
Py_DECREF(Handlers[SIGINT].func);
Handlers[SIGINT].func = IntHandler;
old_siginthandler = PyOS_setsig(SIGINT, signal_handler);
}
#ifdef SIGHUP
x = PyLong_FromLong(SIGHUP);
PyDict_SetItemString(d, "SIGHUP", x);
Py_XDECREF(x);
#endif
#ifdef SIGINT
x = PyLong_FromLong(SIGINT);
PyDict_SetItemString(d, "SIGINT", x);
Py_XDECREF(x);
#endif
#ifdef SIGBREAK
x = PyLong_FromLong(SIGBREAK);
PyDict_SetItemString(d, "SIGBREAK", x);
Py_XDECREF(x);
#endif
#ifdef SIGQUIT
x = PyLong_FromLong(SIGQUIT);
PyDict_SetItemString(d, "SIGQUIT", x);
Py_XDECREF(x);
#endif
#ifdef SIGILL
x = PyLong_FromLong(SIGILL);
PyDict_SetItemString(d, "SIGILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGTRAP
x = PyLong_FromLong(SIGTRAP);
PyDict_SetItemString(d, "SIGTRAP", x);
Py_XDECREF(x);
#endif
#ifdef SIGIOT
x = PyLong_FromLong(SIGIOT);
PyDict_SetItemString(d, "SIGIOT", x);
Py_XDECREF(x);
#endif
#ifdef SIGABRT
x = PyLong_FromLong(SIGABRT);
PyDict_SetItemString(d, "SIGABRT", x);
Py_XDECREF(x);
#endif
#ifdef SIGEMT
x = PyLong_FromLong(SIGEMT);
PyDict_SetItemString(d, "SIGEMT", x);
Py_XDECREF(x);
#endif
#ifdef SIGFPE
x = PyLong_FromLong(SIGFPE);
PyDict_SetItemString(d, "SIGFPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGKILL
x = PyLong_FromLong(SIGKILL);
PyDict_SetItemString(d, "SIGKILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGBUS
x = PyLong_FromLong(SIGBUS);
PyDict_SetItemString(d, "SIGBUS", x);
Py_XDECREF(x);
#endif
#ifdef SIGSEGV
x = PyLong_FromLong(SIGSEGV);
PyDict_SetItemString(d, "SIGSEGV", x);
Py_XDECREF(x);
#endif
#ifdef SIGSYS
x = PyLong_FromLong(SIGSYS);
PyDict_SetItemString(d, "SIGSYS", x);
Py_XDECREF(x);
#endif
#ifdef SIGPIPE
x = PyLong_FromLong(SIGPIPE);
PyDict_SetItemString(d, "SIGPIPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGALRM
x = PyLong_FromLong(SIGALRM);
PyDict_SetItemString(d, "SIGALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGTERM
x = PyLong_FromLong(SIGTERM);
PyDict_SetItemString(d, "SIGTERM", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR1
x = PyLong_FromLong(SIGUSR1);
PyDict_SetItemString(d, "SIGUSR1", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR2
x = PyLong_FromLong(SIGUSR2);
PyDict_SetItemString(d, "SIGUSR2", x);
Py_XDECREF(x);
#endif
#ifdef SIGCLD
x = PyLong_FromLong(SIGCLD);
PyDict_SetItemString(d, "SIGCLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGCHLD
x = PyLong_FromLong(SIGCHLD);
PyDict_SetItemString(d, "SIGCHLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGPWR
x = PyLong_FromLong(SIGPWR);
PyDict_SetItemString(d, "SIGPWR", x);
Py_XDECREF(x);
#endif
#ifdef SIGIO
x = PyLong_FromLong(SIGIO);
PyDict_SetItemString(d, "SIGIO", x);
Py_XDECREF(x);
#endif
#ifdef SIGURG
x = PyLong_FromLong(SIGURG);
PyDict_SetItemString(d, "SIGURG", x);
Py_XDECREF(x);
#endif
#ifdef SIGWINCH
x = PyLong_FromLong(SIGWINCH);
PyDict_SetItemString(d, "SIGWINCH", x);
Py_XDECREF(x);
#endif
#ifdef SIGPOLL
x = PyLong_FromLong(SIGPOLL);
PyDict_SetItemString(d, "SIGPOLL", x);
Py_XDECREF(x);
#endif
#ifdef SIGSTOP
x = PyLong_FromLong(SIGSTOP);
PyDict_SetItemString(d, "SIGSTOP", x);
Py_XDECREF(x);
#endif
#ifdef SIGTSTP
x = PyLong_FromLong(SIGTSTP);
PyDict_SetItemString(d, "SIGTSTP", x);
Py_XDECREF(x);
#endif
#ifdef SIGCONT
x = PyLong_FromLong(SIGCONT);
PyDict_SetItemString(d, "SIGCONT", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTIN
x = PyLong_FromLong(SIGTTIN);
PyDict_SetItemString(d, "SIGTTIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTOU
x = PyLong_FromLong(SIGTTOU);
PyDict_SetItemString(d, "SIGTTOU", x);
Py_XDECREF(x);
#endif
#ifdef SIGVTALRM
x = PyLong_FromLong(SIGVTALRM);
PyDict_SetItemString(d, "SIGVTALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGPROF
x = PyLong_FromLong(SIGPROF);
PyDict_SetItemString(d, "SIGPROF", x);
Py_XDECREF(x);
#endif
#ifdef SIGXCPU
x = PyLong_FromLong(SIGXCPU);
PyDict_SetItemString(d, "SIGXCPU", x);
Py_XDECREF(x);
#endif
#ifdef SIGXFSZ
x = PyLong_FromLong(SIGXFSZ);
PyDict_SetItemString(d, "SIGXFSZ", x);
Py_XDECREF(x);
#endif
#ifdef SIGRTMIN
x = PyLong_FromLong(SIGRTMIN);
PyDict_SetItemString(d, "SIGRTMIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGRTMAX
x = PyLong_FromLong(SIGRTMAX);
PyDict_SetItemString(d, "SIGRTMAX", x);
Py_XDECREF(x);
#endif
#ifdef SIGINFO
x = PyLong_FromLong(SIGINFO);
PyDict_SetItemString(d, "SIGINFO", x);
Py_XDECREF(x);
#endif
#ifdef ITIMER_REAL
x = PyLong_FromLong(ITIMER_REAL);
PyDict_SetItemString(d, "ITIMER_REAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_VIRTUAL
x = PyLong_FromLong(ITIMER_VIRTUAL);
PyDict_SetItemString(d, "ITIMER_VIRTUAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_PROF
x = PyLong_FromLong(ITIMER_PROF);
PyDict_SetItemString(d, "ITIMER_PROF", x);
Py_DECREF(x);
#endif
#if defined (HAVE_SETITIMER) || defined (HAVE_GETITIMER)
ItimerError = PyErr_NewException("signal.ItimerError",
PyExc_IOError, NULL);
if (ItimerError != NULL)
PyDict_SetItemString(d, "ItimerError", ItimerError);
#endif
if (PyErr_Occurred()) {
Py_DECREF(m);
m = NULL;
}
finally:
return m;
}
static void
finisignal(void)
{
int i;
PyObject *func;
PyOS_setsig(SIGINT, old_siginthandler);
old_siginthandler = SIG_DFL;
for (i = 1; i < NSIG; i++) {
func = Handlers[i].func;
Handlers[i].tripped = 0;
Handlers[i].func = NULL;
if (i != SIGINT && func != NULL && func != Py_None &&
func != DefaultHandler && func != IgnoreHandler)
PyOS_setsig(i, SIG_DFL);
Py_XDECREF(func);
}
Py_XDECREF(IntHandler);
IntHandler = NULL;
Py_XDECREF(DefaultHandler);
DefaultHandler = NULL;
Py_XDECREF(IgnoreHandler);
IgnoreHandler = NULL;
}
/* Declared in pyerrors.h */
int
PyErr_CheckSignals(void)
{
int i;
PyObject *f;
if (!is_tripped)
return 0;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
/*
* The is_stripped variable is meant to speed up the calls to
* PyErr_CheckSignals (both directly or via pending calls) when no
* signal has arrived. This variable is set to 1 when a signal arrives
* and it is set to 0 here, when we know some signals arrived. This way
* we can run the registered handlers with no signals blocked.
*
* NOTE: with this approach we can have a situation where is_tripped is
* 1 but we have no more signals to handle (Handlers[i].tripped
* is 0 for every signal i). This won't do us any harm (except
* we're gonna spent some cycles for nothing). This happens when
* we receive a signal i after we zero is_tripped and before we
* check Handlers[i].tripped.
*/
is_tripped = 0;
if (!(f = (PyObject *)PyEval_GetFrame()))
f = Py_None;
for (i = 1; i < NSIG; i++) {
if (Handlers[i].tripped) {
PyObject *result = NULL;
PyObject *arglist = Py_BuildValue("(iO)", i, f);
Handlers[i].tripped = 0;
if (arglist) {
result = PyEval_CallObject(Handlers[i].func,
arglist);
Py_DECREF(arglist);
}
if (!result)
return -1;
Py_DECREF(result);
}
}
return 0;
}
/* Replacements for intrcheck.c functionality
* Declared in pyerrors.h
*/
void
PyErr_SetInterrupt(void)
{
is_tripped = 1;
Handlers[SIGINT].tripped = 1;
Py_AddPendingCall((int (*)(void *))PyErr_CheckSignals, NULL);
}
void
PyOS_InitInterrupts(void)
{
PyObject *m = PyInit_signal();
if (m) {
_PyImport_FixupExtension(m, "signal", "signal");
Py_DECREF(m);
}
}
void
PyOS_FiniInterrupts(void)
{
finisignal();
}
int
PyOS_InterruptOccurred(void)
{
if (Handlers[SIGINT].tripped) {
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
Handlers[SIGINT].tripped = 0;
return 1;
}
return 0;
}
void
PyOS_AfterFork(void)
{
#ifdef WITH_THREAD
PyEval_ReInitThreads();
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
_PyImport_ReInitLock();
PyThread_ReInitTLS();
#endif
}
src/main/resource/testFiles/cpython/prevFiles/prev_1c76b7_d6056b_Modules#faulthandler.c
+998
View File
@@ -0,0 +1,998 @@
#include "Python.h"
#include "pythread.h"
#include <signal.h>
#include <object.h>
#include <frameobject.h>
#include <signal.h>
#ifdef WITH_THREAD
# define FAULTHANDLER_LATER
#endif
#ifndef MS_WINDOWS
/* register() is useless on Windows, because only SIGSEGV and SIGILL can be
handled by the process, and these signals can only be used with enable(),
not using register() */
# define FAULTHANDLER_USER
#endif
/* Allocate at maximum 100 MB of the stack to raise the stack overflow */
#define STACK_OVERFLOW_MAX_SIZE (100*1024*1024)
#define PUTS(fd, str) write(fd, str, strlen(str))
#ifdef HAVE_SIGACTION
typedef struct sigaction _Py_sighandler_t;
#else
typedef PyOS_sighandler_t _Py_sighandler_t;
#endif
typedef struct {
int signum;
int enabled;
const char* name;
_Py_sighandler_t previous;
int all_threads;
} fault_handler_t;
static struct {
int enabled;
PyObject *file;
int fd;
int all_threads;
} fatal_error = {0, NULL, -1, 0};
#ifdef FAULTHANDLER_LATER
static struct {
PyObject *file;
int fd;
PY_TIMEOUT_T timeout_ms; /* timeout in microseconds */
int repeat;
volatile int running;
PyInterpreterState *interp;
int exit;
/* released by parent thread when cancel request */
PyThread_type_lock cancel_event;
/* released by child thread when joined */
PyThread_type_lock join_event;
} thread;
#endif
#ifdef FAULTHANDLER_USER
typedef struct {
int enabled;
PyObject *file;
int fd;
int all_threads;
_Py_sighandler_t previous;
} user_signal_t;
static user_signal_t *user_signals;
/* the following macros come from Python: Modules/signalmodule.c */
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
#define NSIG 12
#endif
#ifndef NSIG
# if defined(_NSIG)
# define NSIG _NSIG /* For BSD/SysV */
# elif defined(_SIGMAX)
# define NSIG (_SIGMAX + 1) /* For QNX */
# elif defined(SIGMAX)
# define NSIG (SIGMAX + 1) /* For djgpp */
# else
# define NSIG 64 /* Use a reasonable default value */
# endif
#endif
#endif /* FAULTHANDLER_USER */
static fault_handler_t faulthandler_handlers[] = {
#ifdef SIGBUS
{SIGBUS, 0, "Bus error", },
#endif
#ifdef SIGILL
{SIGILL, 0, "Illegal instruction", },
#endif
{SIGFPE, 0, "Floating point exception", },
/* define SIGSEGV at the end to make it the default choice if searching the
handler fails in faulthandler_fatal_error() */
{SIGSEGV, 0, "Segmentation fault", }
};
static const unsigned char faulthandler_nsignals = \
sizeof(faulthandler_handlers) / sizeof(faulthandler_handlers[0]);
#ifdef HAVE_SIGALTSTACK
static stack_t stack;
#endif
/* Get the file descriptor of a file by calling its fileno() method and then
call its flush() method.
If file is NULL or Py_None, use sys.stderr as the new file.
On success, return the new file and write the file descriptor into *p_fd.
On error, return NULL. */
static PyObject*
faulthandler_get_fileno(PyObject *file, int *p_fd)
{
PyObject *result;
long fd_long;
int fd;
if (file == NULL || file == Py_None) {
file = PySys_GetObject("stderr");
if (file == NULL) {
PyErr_SetString(PyExc_RuntimeError, "unable to get sys.stderr");
return NULL;
}
}
result = PyObject_CallMethod(file, "fileno", "");
if (result == NULL)
return NULL;
fd = -1;
if (PyLong_Check(result)) {
fd_long = PyLong_AsLong(result);
if (0 <= fd_long && fd_long < INT_MAX)
fd = (int)fd_long;
}
Py_DECREF(result);
if (fd == -1) {
PyErr_SetString(PyExc_RuntimeError,
"file.fileno() is not a valid file descriptor");
return NULL;
}
result = PyObject_CallMethod(file, "flush", "");
if (result != NULL)
Py_DECREF(result);
else {
/* ignore flush() error */
PyErr_Clear();
}
*p_fd = fd;
return file;
}
static PyObject*
faulthandler_dump_traceback_py(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"file", "all_threads", NULL};
PyObject *file = NULL;
int all_threads = 0;
PyThreadState *tstate;
const char *errmsg;
int fd;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|Oi:dump_traceback", kwlist,
&file, &all_threads))
return NULL;
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
/* The caller holds the GIL and so PyThreadState_Get() can be used */
tstate = PyThreadState_Get();
if (tstate == NULL) {
PyErr_SetString(PyExc_RuntimeError,
"unable to get the current thread state");
return NULL;
}
if (all_threads) {
errmsg = _Py_DumpTracebackThreads(fd, tstate->interp, tstate);
if (errmsg != NULL) {
PyErr_SetString(PyExc_RuntimeError, errmsg);
return NULL;
}
}
else {
_Py_DumpTraceback(fd, tstate);
}
Py_RETURN_NONE;
}
/* Handler of SIGSEGV, SIGFPE, SIGBUS and SIGILL signals.
Display the current Python traceback, restore the previous handler and call
the previous handler.
On Windows, don't call explictly the previous handler, because Windows
signal handler would not be called (for an unknown reason). The execution of
the program continues at faulthandler_fatal_error() exit, but the same
instruction will raise the same fault (signal), and so the previous handler
will be called.
This function is signal safe and should only call signal safe functions. */
static void
faulthandler_fatal_error(
int signum
#ifdef HAVE_SIGACTION
, siginfo_t *siginfo, void *ucontext
#endif
)
{
const int fd = fatal_error.fd;
unsigned int i;
fault_handler_t *handler = NULL;
PyThreadState *tstate;
if (!fatal_error.enabled)
return;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
if (handler->signum == signum)
break;
}
if (handler == NULL) {
/* faulthandler_nsignals == 0 (unlikely) */
return;
}
/* restore the previous handler */
#ifdef HAVE_SIGACTION
(void)sigaction(handler->signum, &handler->previous, NULL);
#else
(void)signal(handler->signum, handler->previous);
#endif
handler->enabled = 0;
PUTS(fd, "Fatal Python error: ");
PUTS(fd, handler->name);
PUTS(fd, "\n\n");
/* SIGSEGV, SIGFPE, SIGBUS and SIGILL are synchronous signals and so are
delivered to the thread that caused the fault. Get the Python thread
state of the current thread.
PyThreadState_Get() doesn't give the state of the thread that caused the
fault if the thread released the GIL, and so this function cannot be
used. Read the thread local storage (TLS) instead: call
PyGILState_GetThisThreadState(). */
tstate = PyGILState_GetThisThreadState();
if (tstate == NULL)
return;
if (fatal_error.all_threads)
_Py_DumpTracebackThreads(fd, tstate->interp, tstate);
else
_Py_DumpTraceback(fd, tstate);
#ifndef MS_WINDOWS
/* call the previous signal handler: it is called if we use sigaction()
thanks to SA_NODEFER flag, otherwise it is deferred */
raise(signum);
#else
/* on Windows, don't call explictly the previous handler, because Windows
signal handler would not be called */
#endif
}
/* Install handler for fatal signals (SIGSEGV, SIGFPE, ...). */
static PyObject*
faulthandler_enable(PyObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"file", "all_threads", NULL};
PyObject *file = NULL;
int all_threads = 0;
unsigned int i;
fault_handler_t *handler;
#ifdef HAVE_SIGACTION
struct sigaction action;
#endif
int err;
int fd;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|Oi:enable", kwlist, &file, &all_threads))
return NULL;
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
Py_XDECREF(fatal_error.file);
Py_INCREF(file);
fatal_error.file = file;
fatal_error.fd = fd;
fatal_error.all_threads = all_threads;
if (!fatal_error.enabled) {
fatal_error.enabled = 1;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
#ifdef HAVE_SIGACTION
action.sa_sigaction = faulthandler_fatal_error;
sigemptyset(&action.sa_mask);
/* Do not prevent the signal from being received from within
its own signal handler */
action.sa_flags = SA_NODEFER;
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
/* Call the signal handler on an alternate signal stack
provided by sigaltstack() */
action.sa_flags |= SA_ONSTACK;
}
#endif
err = sigaction(handler->signum, &action, &handler->previous);
#else
handler->previous = signal(handler->signum,
faulthandler_fatal_error);
err = (handler->previous == SIG_ERR);
#endif
if (err) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
handler->enabled = 1;
}
}
Py_RETURN_NONE;
}
static void
faulthandler_disable(void)
{
unsigned int i;
fault_handler_t *handler;
if (fatal_error.enabled) {
fatal_error.enabled = 0;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
if (!handler->enabled)
continue;
#ifdef HAVE_SIGACTION
(void)sigaction(handler->signum, &handler->previous, NULL);
#else
(void)signal(handler->signum, handler->previous);
#endif
handler->enabled = 0;
}
}
Py_CLEAR(fatal_error.file);
}
static PyObject*
faulthandler_disable_py(PyObject *self)
{
if (!fatal_error.enabled) {
Py_INCREF(Py_False);
return Py_False;
}
faulthandler_disable();
Py_INCREF(Py_True);
return Py_True;
}
static PyObject*
faulthandler_is_enabled(PyObject *self)
{
return PyBool_FromLong(fatal_error.enabled);
}
#ifdef FAULTHANDLER_LATER
static void
faulthandler_thread(void *unused)
{
PyLockStatus st;
const char* errmsg;
PyThreadState *current;
int ok;
do {
st = PyThread_acquire_lock_timed(thread.cancel_event,
thread.timeout_ms, 0);
if (st == PY_LOCK_ACQUIRED) {
/* Cancelled by user */
break;
}
/* Timeout => dump traceback */
assert(st == PY_LOCK_FAILURE);
/* get the thread holding the GIL, NULL if no thread hold the GIL */
current = _Py_atomic_load_relaxed(&_PyThreadState_Current);
errmsg = _Py_DumpTracebackThreads(thread.fd, thread.interp, current);
ok = (errmsg == NULL);
if (thread.exit)
_exit(1);
} while (ok && thread.repeat);
/* The only way out */
thread.running = 0;
PyThread_release_lock(thread.join_event);
PyThread_release_lock(thread.cancel_event);
}
static void
faulthandler_cancel_dump_tracebacks_later(void)
{
if (thread.running) {
/* Notify cancellation */
PyThread_release_lock(thread.cancel_event);
/* Wait for thread to join */
PyThread_acquire_lock(thread.join_event, 1);
assert(thread.running == 0);
PyThread_release_lock(thread.join_event);
}
Py_CLEAR(thread.file);
}
static PyObject*
faulthandler_dump_traceback_later(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"timeout", "repeat", "file", "exit", NULL};
double timeout;
PY_TIMEOUT_T timeout_ms;
int repeat = 0;
PyObject *file = NULL;
int fd;
int exit = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"d|iOi:dump_tracebacks_later", kwlist,
&timeout, &repeat, &file, &exit))
return NULL;
timeout *= 1e6;
if (timeout >= (double) PY_TIMEOUT_MAX) {
PyErr_SetString(PyExc_OverflowError, "timeout value is too large");
return NULL;
}
timeout_ms = (PY_TIMEOUT_T)timeout;
if (timeout_ms <= 0) {
PyErr_SetString(PyExc_ValueError, "timeout must be greater than 0");
return NULL;
}
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
/* Cancel previous thread, if running */
faulthandler_cancel_dump_tracebacks_later();
Py_XDECREF(thread.file);
Py_INCREF(file);
thread.file = file;
thread.fd = fd;
thread.timeout_ms = timeout_ms;
thread.repeat = repeat;
thread.interp = PyThreadState_Get()->interp;
thread.exit = exit;
/* Arm these locks to serve as events when released */
PyThread_acquire_lock(thread.join_event, 1);
PyThread_acquire_lock(thread.cancel_event, 1);
thread.running = 1;
if (PyThread_start_new_thread(faulthandler_thread, NULL) == -1) {
thread.running = 0;
Py_CLEAR(thread.file);
PyErr_SetString(PyExc_RuntimeError,
"unable to start watchdog thread");
return NULL;
}
Py_RETURN_NONE;
}
static PyObject*
faulthandler_cancel_dump_tracebacks_later_py(PyObject *self)
{
faulthandler_cancel_dump_tracebacks_later();
Py_RETURN_NONE;
}
#endif /* FAULTHANDLER_LATER */
#ifdef FAULTHANDLER_USER
/* Handler of user signals (e.g. SIGUSR1).
Dump the traceback of the current thread, or of all threads if
thread.all_threads is true.
This function is signal safe and should only call signal safe functions. */
static void
faulthandler_user(int signum)
{
user_signal_t *user;
PyThreadState *tstate;
user = &user_signals[signum];
if (!user->enabled)
return;
/* PyThreadState_Get() doesn't give the state of the current thread if
the thread doesn't hold the GIL. Read the thread local storage (TLS)
instead: call PyGILState_GetThisThreadState(). */
tstate = PyGILState_GetThisThreadState();
if (tstate == NULL) {
/* unable to get the current thread, do nothing */
return;
}
if (user->all_threads)
_Py_DumpTracebackThreads(user->fd, tstate->interp, tstate);
else
_Py_DumpTraceback(user->fd, tstate);
}
static PyObject*
faulthandler_register(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"signum", "file", "all_threads", NULL};
int signum;
PyObject *file = NULL;
int all_threads = 0;
int fd;
unsigned int i;
user_signal_t *user;
_Py_sighandler_t previous;
#ifdef HAVE_SIGACTION
struct sigaction action;
#endif
int err;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"i|Oi:register", kwlist,
&signum, &file, &all_threads))
return NULL;
if (signum < 1 || NSIG <= signum) {
PyErr_SetString(PyExc_ValueError, "signal number out of range");
return NULL;
}
for (i=0; i < faulthandler_nsignals; i++) {
if (faulthandler_handlers[i].signum == signum) {
PyErr_Format(PyExc_RuntimeError,
"signal %i cannot be registered by register(), "
"use enable() instead",
signum);
return NULL;
}
}
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
if (user_signals == NULL) {
user_signals = calloc(NSIG, sizeof(user_signal_t));
if (user_signals == NULL)
return PyErr_NoMemory();
}
user = &user_signals[signum];
if (!user->enabled) {
#ifdef HAVE_SIGACTION
action.sa_handler = faulthandler_user;
sigemptyset(&action.sa_mask);
/* if the signal is received while the kernel is executing a system
call, try to restart the system call instead of interrupting it and
return EINTR */
action.sa_flags = SA_RESTART;
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
/* Call the signal handler on an alternate signal stack
provided by sigaltstack() */
action.sa_flags |= SA_ONSTACK;
}
#endif
err = sigaction(signum, &action, &previous);
#else
previous = signal(signum, faulthandler_user);
err = (previous == SIG_ERR);
#endif
if (err) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
}
Py_XDECREF(user->file);
Py_INCREF(file);
user->file = file;
user->fd = fd;
user->all_threads = all_threads;
user->previous = previous;
user->enabled = 1;
Py_RETURN_NONE;
}
static int
faulthandler_unregister(user_signal_t *user, int signum)
{
if (user->enabled)
return 0;
user->enabled = 0;
#ifdef HAVE_SIGACTION
(void)sigaction(signum, &user->previous, NULL);
#else
(void)signal(signum, user->previous);
#endif
Py_CLEAR(user->file);
user->fd = -1;
return 1;
}
static PyObject*
faulthandler_unregister_py(PyObject *self, PyObject *args)
{
int signum;
user_signal_t *user;
int change;
if (!PyArg_ParseTuple(args, "i:unregister", &signum))
return NULL;
if (signum < 1 || NSIG <= signum) {
PyErr_SetString(PyExc_ValueError, "signal number out of range");
return NULL;
}
user = &user_signals[signum];
change = faulthandler_unregister(user, signum);
return PyBool_FromLong(change);
}
#endif /* FAULTHANDLER_USER */
static PyObject *
faulthandler_read_null(PyObject *self, PyObject *args)
{
int *x = NULL, y;
int release_gil = 0;
if (!PyArg_ParseTuple(args, "|i:_read_null", &release_gil))
return NULL;
if (release_gil) {
Py_BEGIN_ALLOW_THREADS
y = *x;
Py_END_ALLOW_THREADS
} else
y = *x;
return PyLong_FromLong(y);
}
static PyObject *
faulthandler_sigsegv(PyObject *self, PyObject *args)
{
#if defined(MS_WINDOWS)
/* faulthandler_fatal_error() restores the previous signal handler and then
gives back the execution flow to the program. In a normal case, the
SIGSEGV was raised by the kernel because of a fault, and so if the
program retries to execute the same instruction, the fault will be
raised again.
Here the fault is simulated by a fake SIGSEGV signal raised by the
application. We have to raise SIGSEGV at lease twice: once for
faulthandler_fatal_error(), and one more time for the previous signal
handler. */
while(1)
raise(SIGSEGV);
#else
raise(SIGSEGV);
#endif
Py_RETURN_NONE;
}
static PyObject *
faulthandler_sigfpe(PyObject *self, PyObject *args)
{
/* Do an integer division by zero: raise a SIGFPE on Intel CPU, but not on
PowerPC. Use volatile to disable compile-time optimizations. */
volatile int x = 1, y = 0, z;
z = x / y;
/* if the division by zero didn't raise a SIGFPE, raise it manually */
raise(SIGFPE);
Py_RETURN_NONE;
}
#ifdef SIGBUS
static PyObject *
faulthandler_sigbus(PyObject *self, PyObject *args)
{
raise(SIGBUS);
Py_RETURN_NONE;
}
#endif
#ifdef SIGILL
static PyObject *
faulthandler_sigill(PyObject *self, PyObject *args)
{
#if defined(MS_WINDOWS)
/* see faulthandler_sigsegv() for the explanation about while(1) */
while(1)
raise(SIGILL);
#else
raise(SIGILL);
#endif
Py_RETURN_NONE;
}
#endif
static PyObject *
faulthandler_fatal_error_py(PyObject *self, PyObject *args)
{
char *message;
if (!PyArg_ParseTuple(args, "y:fatal_error", &message))
return NULL;
Py_FatalError(message);
Py_RETURN_NONE;
}
#if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGACTION)
void*
stack_overflow(void *min_sp, void *max_sp, size_t *depth)
{
/* allocate 4096 bytes on the stack at each call */
unsigned char buffer[4096];
void *sp = &buffer;
*depth += 1;
if (sp < min_sp || max_sp < sp)
return sp;
buffer[0] = 1;
buffer[4095] = 0;
return stack_overflow(min_sp, max_sp, depth);
}
static PyObject *
faulthandler_stack_overflow(PyObject *self)
{
size_t depth, size;
void *sp = &depth, *stop;
depth = 0;
stop = stack_overflow(sp - STACK_OVERFLOW_MAX_SIZE,
sp + STACK_OVERFLOW_MAX_SIZE,
&depth);
if (sp < stop)
size = stop - sp;
else
size = sp - stop;
PyErr_Format(PyExc_RuntimeError,
"unable to raise a stack overflow (allocated %zu bytes "
"on the stack, %zu recursive calls)",
size, depth);
return NULL;
}
#endif
static int
faulthandler_traverse(PyObject *module, visitproc visit, void *arg)
{
#ifdef FAULTHANDLER_USER
unsigned int index;
#endif
#ifdef FAULTHANDLER_LATER
Py_VISIT(thread.file);
#endif
#ifdef FAULTHANDLER_USER
if (user_signals != NULL) {
for (index=0; index < NSIG; index++)
Py_VISIT(user_signals[index].file);
}
#endif
Py_VISIT(fatal_error.file);
return 0;
}
PyDoc_STRVAR(module_doc,
"faulthandler module.");
static PyMethodDef module_methods[] = {
{"enable",
(PyCFunction)faulthandler_enable, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("enable(file=sys.stderr, all_threads=False): "
"enable the fault handler")},
{"disable", (PyCFunction)faulthandler_disable_py, METH_NOARGS,
PyDoc_STR("disable(): disable the fault handler")},
{"is_enabled", (PyCFunction)faulthandler_is_enabled, METH_NOARGS,
PyDoc_STR("is_enabled()->bool: check if the handler is enabled")},
{"dump_traceback",
(PyCFunction)faulthandler_dump_traceback_py, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("dump_traceback(file=sys.stderr, all_threads=False): "
"dump the traceback of the current thread, or of all threads "
"if all_threads is True, into file")},
#ifdef FAULTHANDLER_LATER
{"dump_tracebacks_later",
(PyCFunction)faulthandler_dump_traceback_later, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("dump_tracebacks_later(timeout, repeat=False, file=sys.stderr):\n"
"dump the traceback of all threads in timeout seconds,\n"
"or each timeout seconds if repeat is True.")},
{"cancel_dump_tracebacks_later",
(PyCFunction)faulthandler_cancel_dump_tracebacks_later_py, METH_NOARGS,
PyDoc_STR("cancel_dump_tracebacks_later():\ncancel the previous call "
"to dump_tracebacks_later().")},
#endif
#ifdef FAULTHANDLER_USER
{"register",
(PyCFunction)faulthandler_register, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("register(signum, file=sys.stderr, all_threads=False): "
"register an handler for the signal 'signum': dump the "
"traceback of the current thread, or of all threads if "
"all_threads is True, into file")},
{"unregister",
faulthandler_unregister_py, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("unregister(signum): unregister the handler of the signal "
"'signum' registered by register()")},
#endif
{"_read_null", faulthandler_read_null, METH_VARARGS,
PyDoc_STR("_read_null(release_gil=False): read from NULL, raise "
"a SIGSEGV or SIGBUS signal depending on the platform")},
{"_sigsegv", faulthandler_sigsegv, METH_VARARGS,
PyDoc_STR("_sigsegv(): raise a SIGSEGV signal")},
{"_sigfpe", (PyCFunction)faulthandler_sigfpe, METH_NOARGS,
PyDoc_STR("_sigfpe(): raise a SIGFPE signal")},
#ifdef SIGBUS
{"_sigbus", (PyCFunction)faulthandler_sigbus, METH_NOARGS,
PyDoc_STR("_sigbus(): raise a SIGBUS signal")},
#endif
#ifdef SIGILL
{"_sigill", (PyCFunction)faulthandler_sigill, METH_NOARGS,
PyDoc_STR("_sigill(): raise a SIGILL signal")},
#endif
{"_fatal_error", faulthandler_fatal_error_py, METH_VARARGS,
PyDoc_STR("_fatal_error(message): call Py_FatalError(message)")},
#if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGACTION)
{"_stack_overflow", (PyCFunction)faulthandler_stack_overflow, METH_NOARGS,
PyDoc_STR("_stack_overflow(): recursive call to raise a stack overflow")},
#endif
{NULL, NULL} /* terminator */
};
static struct PyModuleDef module_def = {
PyModuleDef_HEAD_INIT,
"faulthandler",
module_doc,
0, /* non negative size to be able to unload the module */
module_methods,
NULL,
faulthandler_traverse,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit_faulthandler(void)
{
return PyModule_Create(&module_def);
}
/* Call faulthandler.enable() if PYTHONFAULTHANDLER environment variable is
defined, or if sys._xoptions has a 'faulthandler' key. */
static int
faulthandler_env_options(void)
{
PyObject *xoptions, *key, *module, *res;
int enable;
if (!Py_GETENV("PYTHONFAULTHANDLER")) {
xoptions = PySys_GetXOptions();
if (xoptions == NULL)
return -1;
key = PyUnicode_FromString("faulthandler");
if (key == NULL)
return -1;
enable = PyDict_Contains(xoptions, key);
Py_DECREF(key);
if (!enable)
return 0;
}
else
enable = 1;
module = PyImport_ImportModule("faulthandler");
if (module == NULL) {
return -1;
}
res = PyObject_CallMethod(module, "enable", "");
Py_DECREF(module);
if (res == NULL)
return -1;
Py_DECREF(res);
return 0;
}
int _PyFaulthandler_Init(void)
{
#ifdef HAVE_SIGALTSTACK
int err;
/* Try to allocate an alternate stack for faulthandler() signal handler to
* be able to allocate memory on the stack, even on a stack overflow. If it
* fails, ignore the error. */
stack.ss_flags = 0;
stack.ss_size = SIGSTKSZ;
stack.ss_sp = PyMem_Malloc(stack.ss_size);
if (stack.ss_sp != NULL) {
err = sigaltstack(&stack, NULL);
if (err) {
PyMem_Free(stack.ss_sp);
stack.ss_sp = NULL;
}
}
#endif
#ifdef FAULTHANDLER_LATER
thread.running = 0;
thread.file = NULL;
thread.cancel_event = PyThread_allocate_lock();
thread.join_event = PyThread_allocate_lock();
if (!thread.cancel_event || !thread.join_event) {
PyErr_SetString(PyExc_RuntimeError,
"could not allocate locks for faulthandler");
return -1;
}
#endif
return faulthandler_env_options();
}
void _PyFaulthandler_Fini(void)
{
#ifdef FAULTHANDLER_USER
unsigned int i;
#endif
#ifdef FAULTHANDLER_LATER
/* later */
faulthandler_cancel_dump_tracebacks_later();
if (thread.cancel_event) {
PyThread_free_lock(thread.cancel_event);
thread.cancel_event = NULL;
}
if (thread.join_event) {
PyThread_free_lock(thread.join_event);
thread.join_event = NULL;
}
#endif
#ifdef FAULTHANDLER_USER
/* user */
if (user_signals != NULL) {
for (i=0; i < NSIG; i++)
faulthandler_unregister(&user_signals[i], i+1);
free(user_signals);
user_signals = NULL;
}
#endif
/* fatal */
faulthandler_disable();
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
PyMem_Free(stack.ss_sp);
stack.ss_sp = NULL;
}
#endif
}
src/main/resource/testFiles/cpython/prevFiles/prev_58fb90_c9e435_Modules#_stringio.c
+383
View File
@@ -0,0 +1,383 @@
#include "Python.h"
/* This module is a stripped down version of _bytesio.c with a Py_UNICODE
buffer. Most of the functionality is provided by subclassing _StringIO. */
typedef struct {
PyObject_HEAD
Py_UNICODE *buf;
Py_ssize_t pos;
Py_ssize_t string_size;
size_t buf_size;
} StringIOObject;
/* Internal routine for changing the size, in terms of characters, of the
buffer of StringIO objects. The caller should ensure that the 'size'
argument is non-negative. Returns 0 on success, -1 otherwise. */
static int
resize_buffer(StringIOObject *self, size_t size)
{
/* Here, unsigned types are used to avoid dealing with signed integer
overflow, which is undefined in C. */
size_t alloc = self->buf_size;
Py_UNICODE *new_buf = NULL;
assert(self->buf != NULL);
/* For simplicity, stay in the range of the signed type. Anyway, Python
doesn't allow strings to be longer than this. */
if (size > PY_SSIZE_T_MAX)
goto overflow;
if (size < alloc / 2) {
/* Major downsize; resize down to exact size. */
alloc = size + 1;
}
else if (size < alloc) {
/* Within allocated size; quick exit */
return 0;
}
else if (size <= alloc * 1.125) {
/* Moderate upsize; overallocate similar to list_resize() */
alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
}
else {
/* Major upsize; resize up to exact size */
alloc = size + 1;
}
if (alloc > ((size_t)-1) / sizeof(Py_UNICODE))
goto overflow;
new_buf = (Py_UNICODE *)PyMem_Realloc(self->buf,
alloc * sizeof(Py_UNICODE));
if (new_buf == NULL) {
PyErr_NoMemory();
return -1;
}
self->buf_size = alloc;
self->buf = new_buf;
return 0;
overflow:
PyErr_SetString(PyExc_OverflowError,
"new buffer size too large");
return -1;
}
/* Internal routine for writing a string of characters to the buffer of a
StringIO object. Returns the number of bytes wrote, or -1 on error. */
static Py_ssize_t
write_str(StringIOObject *self, const Py_UNICODE *str, Py_ssize_t len)
{
assert(self->buf != NULL);
assert(self->pos >= 0);
assert(len >= 0);
/* This overflow check is not strictly necessary. However, it avoids us to
deal with funky things like comparing an unsigned and a signed
integer. */
if (self->pos > PY_SSIZE_T_MAX - len) {
PyErr_SetString(PyExc_OverflowError,
"new position too large");
return -1;
}
if (self->pos + len > self->string_size) {
if (resize_buffer(self, self->pos + len) < 0)
return -1;
}
if (self->pos > self->string_size) {
/* In case of overseek, pad with null bytes the buffer region between
the end of stream and the current position.
0 lo string_size hi
| |<---used--->|<----------available----------->|
| | <--to pad-->|<---to write---> |
0 buf positon
*/
memset(self->buf + self->string_size, '\0',
(self->pos - self->string_size) * sizeof(Py_UNICODE));
}
/* Copy the data to the internal buffer, overwriting some of the
existing data if self->pos < self->string_size. */
memcpy(self->buf + self->pos, str, len * sizeof(Py_UNICODE));
self->pos += len;
/* Set the new length of the internal string if it has changed */
if (self->string_size < self->pos) {
self->string_size = self->pos;
}
return len;
}
static PyObject *
stringio_getvalue(StringIOObject *self)
{
return PyUnicode_FromUnicode(self->buf, self->string_size);
}
static PyObject *
stringio_tell(StringIOObject *self)
{
return PyLong_FromSsize_t(self->pos);
}
static PyObject *
stringio_read(StringIOObject *self, PyObject *args)
{
Py_ssize_t size, n;
Py_UNICODE *output;
PyObject *arg = Py_None;
if (!PyArg_ParseTuple(args, "|O:read", &arg))
return NULL;
if (PyLong_Check(arg)) {
size = PyLong_AsSsize_t(arg);
}
else if (arg == Py_None) {
/* Read until EOF is reached, by default. */
size = -1;
}
else {
PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
Py_TYPE(arg)->tp_name);
return NULL;
}
/* adjust invalid sizes */
n = self->string_size - self->pos;
if (size < 0 || size > n) {
size = n;
if (size < 0)
size = 0;
}
assert(self->buf != NULL);
output = self->buf + self->pos;
self->pos += size;
return PyUnicode_FromUnicode(output, size);
}
static PyObject *
stringio_truncate(StringIOObject *self, PyObject *args)
{
Py_ssize_t size;
PyObject *arg = Py_None;
if (!PyArg_ParseTuple(args, "|O:truncate", &arg))
return NULL;
if (PyLong_Check(arg)) {
size = PyLong_AsSsize_t(arg);
if (size == -1 && PyErr_Occurred())
return NULL;
if (size == -1 && PyErr_Occurred())
return NULL;
}
else if (arg == Py_None) {
/* Truncate to current position if no argument is passed. */
size = self->pos;
}
else {
PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
Py_TYPE(arg)->tp_name);
return NULL;
}
if (size < 0) {
PyErr_Format(PyExc_ValueError,
"Negative size value %zd", size);
return NULL;
}
if (size < self->string_size) {
self->string_size = size;
if (resize_buffer(self, size) < 0)
return NULL;
}
self->pos = size;
return PyLong_FromSsize_t(size);
}
static PyObject *
stringio_seek(StringIOObject *self, PyObject *args)
{
Py_ssize_t pos;
int mode = 0;
if (!PyArg_ParseTuple(args, "n|i:seek", &pos, &mode))
return NULL;
if (mode != 0 && mode != 1 && mode != 2) {
PyErr_Format(PyExc_ValueError,
"Invalid whence (%i, should be 0, 1 or 2)", mode);
return NULL;
}
else if (pos < 0 && mode == 0) {
PyErr_Format(PyExc_ValueError,
"Negative seek position %zd", pos);
return NULL;
}
else if (mode != 0 && pos != 0) {
PyErr_SetString(PyExc_IOError,
"Can't do nonzero cur-relative seeks");
return NULL;
}
/* mode 0: offset relative to beginning of the string.
mode 1: no change to current position.
mode 2: change position to end of file. */
if (mode == 1) {
pos = self->pos;
}
else if (mode == 2) {
pos = self->string_size;
}
self->pos = pos;
return PyLong_FromSsize_t(self->pos);
}
static PyObject *
stringio_write(StringIOObject *self, PyObject *obj)
{
const Py_UNICODE *str;
Py_ssize_t size;
Py_ssize_t n = 0;
if (PyUnicode_Check(obj)) {
str = PyUnicode_AsUnicode(obj);
size = PyUnicode_GetSize(obj);
}
else {
PyErr_Format(PyExc_TypeError, "string argument expected, got '%s'",
Py_TYPE(obj)->tp_name);
return NULL;
}
if (size != 0) {
n = write_str(self, str, size);
if (n < 0)
return NULL;
}
return PyLong_FromSsize_t(n);
}
static void
stringio_dealloc(StringIOObject *self)
{
PyMem_Free(self->buf);
Py_TYPE(self)->tp_free(self);
}
static PyObject *
stringio_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
StringIOObject *self;
assert(type != NULL && type->tp_alloc != NULL);
self = (StringIOObject *)type->tp_alloc(type, 0);
if (self == NULL)
return NULL;
self->string_size = 0;
self->pos = 0;
self->buf_size = 0;
self->buf = (Py_UNICODE *)PyMem_Malloc(0);
if (self->buf == NULL) {
Py_DECREF(self);
return PyErr_NoMemory();
}
return (PyObject *)self;
}
static struct PyMethodDef stringio_methods[] = {
{"getvalue", (PyCFunction)stringio_getvalue, METH_VARARGS, NULL},
{"read", (PyCFunction)stringio_read, METH_VARARGS, NULL},
{"tell", (PyCFunction)stringio_tell, METH_NOARGS, NULL},
{"truncate", (PyCFunction)stringio_truncate, METH_VARARGS, NULL},
{"seek", (PyCFunction)stringio_seek, METH_VARARGS, NULL},
{"write", (PyCFunction)stringio_write, METH_O, NULL},
{NULL, NULL} /* sentinel */
};
static PyTypeObject StringIO_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_stringio._StringIO", /*tp_name*/
sizeof(StringIOObject), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)stringio_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
stringio_methods, /*tp_methods*/
0, /*tp_members*/
0, /*tp_getset*/
0, /*tp_base*/
0, /*tp_dict*/
0, /*tp_descr_get*/
0, /*tp_descr_set*/
0, /*tp_dictoffset*/
0, /*tp_init*/
0, /*tp_alloc*/
stringio_new, /*tp_new*/
};
static struct PyModuleDef _stringiomodule = {
PyModuleDef_HEAD_INIT,
"_stringio",
NULL,
-1,
NULL,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit__stringio(void)
{
PyObject *m;
if (PyType_Ready(&StringIO_Type) < 0)
return NULL;
m = PyModule_Create(&_stringiomodule);
if (m == NULL)
return NULL;
Py_INCREF(&StringIO_Type);
if (PyModule_AddObject(m, "_StringIO", (PyObject *)&StringIO_Type) < 0)
return NULL;
return m;
}
src/main/resource/testFiles/cpython/revFiles/1a8501_c47253_Modules#signalmodule.c
+947
View File
@@ -0,0 +1,947 @@
/* Signal module -- many thanks to Lance Ellinghaus */
/* XXX Signals should be recorded per thread, now we have thread state. */
#include "Python.h"
#include "intrcheck.h"
#ifdef MS_WINDOWS
#include <process.h>
#endif
#include <signal.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifndef SIG_ERR
#define SIG_ERR ((PyOS_sighandler_t)(-1))
#endif
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
#define NSIG 12
#include <process.h>
#endif
#ifndef NSIG
# if defined(_NSIG)
# define NSIG _NSIG /* For BSD/SysV */
# elif defined(_SIGMAX)
# define NSIG (_SIGMAX + 1) /* For QNX */
# elif defined(SIGMAX)
# define NSIG (SIGMAX + 1) /* For djgpp */
# else
# define NSIG 64 /* Use a reasonable default value */
# endif
#endif
/*
NOTES ON THE INTERACTION BETWEEN SIGNALS AND THREADS
When threads are supported, we want the following semantics:
- only the main thread can set a signal handler
- any thread can get a signal handler
- signals are only delivered to the main thread
I.e. we don't support "synchronous signals" like SIGFPE (catching
this doesn't make much sense in Python anyway) nor do we support
signals as a means of inter-thread communication, since not all
thread implementations support that (at least our thread library
doesn't).
We still have the problem that in some implementations signals
generated by the keyboard (e.g. SIGINT) are delivered to all
threads (e.g. SGI), while in others (e.g. Solaris) such signals are
delivered to one random thread (an intermediate possibility would
be to deliver it to the main thread -- POSIX?). For now, we have
a working implementation that works in all three cases -- the
handler ignores signals if getpid() isn't the same as in the main
thread. XXX This is a hack.
GNU pth is a user-space threading library, and as such, all threads
run within the same process. In this case, if the currently running
thread is not the main_thread, send the signal to the main_thread.
*/
#ifdef WITH_THREAD
#include <sys/types.h> /* For pid_t */
#include "pythread.h"
static long main_thread;
static pid_t main_pid;
#endif
static struct {
int tripped;
PyObject *func;
} Handlers[NSIG];
static sig_atomic_t wakeup_fd = -1;
/* Speed up sigcheck() when none tripped */
static volatile sig_atomic_t is_tripped = 0;
static PyObject *DefaultHandler;
static PyObject *IgnoreHandler;
static PyObject *IntHandler;
/* On Solaris 8, gcc will produce a warning that the function
declaration is not a prototype. This is caused by the definition of
SIG_DFL as (void (*)())0; the correct declaration would have been
(void (*)(int))0. */
static PyOS_sighandler_t old_siginthandler = SIG_DFL;
#ifdef HAVE_GETITIMER
static PyObject *ItimerError;
/* auxiliary functions for setitimer/getitimer */
static void
timeval_from_double(double d, struct timeval *tv)
{
tv->tv_sec = floor(d);
tv->tv_usec = fmod(d, 1.0) * 1000000.0;
}
Py_LOCAL_INLINE(double)
double_from_timeval(struct timeval *tv)
{
return tv->tv_sec + (double)(tv->tv_usec / 1000000.0);
}
static PyObject *
itimer_retval(struct itimerval *iv)
{
PyObject *r, *v;
r = PyTuple_New(2);
if (r == NULL)
return NULL;
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_value)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 0, v);
if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_interval)))) {
Py_DECREF(r);
return NULL;
}
PyTuple_SET_ITEM(r, 1, v);
return r;
}
#endif
static PyObject *
signal_default_int_handler(PyObject *self, PyObject *args)
{
PyErr_SetNone(PyExc_KeyboardInterrupt);
return NULL;
}
PyDoc_STRVAR(default_int_handler_doc,
"default_int_handler(...)\n\
\n\
The default handler for SIGINT installed by Python.\n\
It raises KeyboardInterrupt.");
static int
checksignals_witharg(void * unused)
{
return PyErr_CheckSignals();
}
static void
signal_handler(int sig_num)
{
#ifdef WITH_THREAD
#ifdef WITH_PTH
if (PyThread_get_thread_ident() != main_thread) {
pth_raise(*(pth_t *) main_thread, sig_num);
return;
}
#endif
/* See NOTES section above */
if (getpid() == main_pid) {
#endif
Handlers[sig_num].tripped = 1;
/* Set is_tripped after setting .tripped, as it gets
cleared in PyErr_CheckSignals() before .tripped. */
is_tripped = 1;
Py_AddPendingCall(checksignals_witharg, NULL);
if (wakeup_fd != -1)
write(wakeup_fd, "\0", 1);
#ifdef WITH_THREAD
}
#endif
#ifdef SIGCHLD
if (sig_num == SIGCHLD) {
/* To avoid infinite recursion, this signal remains
reset until explicit re-instated.
Don't clear the 'func' field as it is our pointer
to the Python handler... */
return;
}
#endif
PyOS_setsig(sig_num, signal_handler);
}
#ifdef HAVE_ALARM
static PyObject *
signal_alarm(PyObject *self, PyObject *args)
{
int t;
if (!PyArg_ParseTuple(args, "i:alarm", &t))
return NULL;
/* alarm() returns the number of seconds remaining */
return PyLong_FromLong((long)alarm(t));
}
PyDoc_STRVAR(alarm_doc,
"alarm(seconds)\n\
\n\
Arrange for SIGALRM to arrive after the given number of seconds.");
#endif
#ifdef HAVE_PAUSE
static PyObject *
signal_pause(PyObject *self)
{
Py_BEGIN_ALLOW_THREADS
(void)pause();
Py_END_ALLOW_THREADS
/* make sure that any exceptions that got raised are propagated
* back into Python
*/
if (PyErr_CheckSignals())
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
PyDoc_STRVAR(pause_doc,
"pause()\n\
\n\
Wait until a signal arrives.");
#endif
static PyObject *
signal_signal(PyObject *self, PyObject *args)
{
PyObject *obj;
int sig_num;
PyObject *old_handler;
void (*func)(int);
if (!PyArg_ParseTuple(args, "iO:signal", &sig_num, &obj))
return NULL;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"signal only works in main thread");
return NULL;
}
#endif
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (obj == IgnoreHandler)
func = SIG_IGN;
else if (obj == DefaultHandler)
func = SIG_DFL;
else if (!PyCallable_Check(obj)) {
PyErr_SetString(PyExc_TypeError,
"signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object");
return NULL;
}
else
func = signal_handler;
if (PyOS_setsig(sig_num, func) == SIG_ERR) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
old_handler = Handlers[sig_num].func;
Handlers[sig_num].tripped = 0;
Py_INCREF(obj);
Handlers[sig_num].func = obj;
return old_handler;
}
PyDoc_STRVAR(signal_doc,
"signal(sig, action) -> action\n\
\n\
Set the action for the given signal. The action can be SIG_DFL,\n\
SIG_IGN, or a callable Python object. The previous action is\n\
returned. See getsignal() for possible return values.\n\
\n\
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
the first is the signal number, the second is the interrupted stack frame.");
static PyObject *
signal_getsignal(PyObject *self, PyObject *args)
{
int sig_num;
PyObject *old_handler;
if (!PyArg_ParseTuple(args, "i:getsignal", &sig_num))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
old_handler = Handlers[sig_num].func;
Py_INCREF(old_handler);
return old_handler;
}
PyDoc_STRVAR(getsignal_doc,
"getsignal(sig) -> action\n\
\n\
Return the current action for the given signal. The return value can be:\n\
SIG_IGN -- if the signal is being ignored\n\
SIG_DFL -- if the default action for the signal is in effect\n\
None -- if an unknown handler is in effect\n\
anything else -- the callable Python object used as a handler");
#ifdef HAVE_SIGINTERRUPT
PyDoc_STRVAR(siginterrupt_doc,
"siginterrupt(sig, flag) -> None\n\
change system call restart behaviour: if flag is False, system calls\n\
will be restarted when interrupted by signal sig, else system calls\n\
will be interrupted.");
static PyObject *
signal_siginterrupt(PyObject *self, PyObject *args)
{
int sig_num;
int flag;
if (!PyArg_ParseTuple(args, "ii:siginterrupt", &sig_num, &flag))
return NULL;
if (sig_num < 1 || sig_num >= NSIG) {
PyErr_SetString(PyExc_ValueError,
"signal number out of range");
return NULL;
}
if (siginterrupt(sig_num, flag)<0) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
#endif
static PyObject *
signal_set_wakeup_fd(PyObject *self, PyObject *args)
{
struct stat buf;
int fd, old_fd;
if (!PyArg_ParseTuple(args, "i:set_wakeup_fd", &fd))
return NULL;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread) {
PyErr_SetString(PyExc_ValueError,
"set_wakeup_fd only works in main thread");
return NULL;
}
#endif
if (fd != -1 && fstat(fd, &buf) != 0) {
PyErr_SetString(PyExc_ValueError, "invalid fd");
return NULL;
}
old_fd = wakeup_fd;
wakeup_fd = fd;
return PyLong_FromLong(old_fd);
}
PyDoc_STRVAR(set_wakeup_fd_doc,
"set_wakeup_fd(fd) -> fd\n\
\n\
Sets the fd to be written to (with '\\0') when a signal\n\
comes in. A library can use this to wakeup select or poll.\n\
The previous fd is returned.\n\
\n\
The fd must be non-blocking.");
/* C API for the same, without all the error checking */
int
PySignal_SetWakeupFd(int fd)
{
int old_fd = wakeup_fd;
if (fd < 0)
fd = -1;
wakeup_fd = fd;
return old_fd;
}
#ifdef HAVE_SETITIMER
static PyObject *
signal_setitimer(PyObject *self, PyObject *args)
{
double first;
double interval = 0;
int which;
struct itimerval new, old;
if(!PyArg_ParseTuple(args, "id|d:setitimer", &which, &first, &interval))
return NULL;
timeval_from_double(first, &new.it_value);
timeval_from_double(interval, &new.it_interval);
/* Let OS check "which" value */
if (setitimer(which, &new, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(setitimer_doc,
"setitimer(which, seconds[, interval])\n\
\n\
Sets given itimer (one of ITIMER_REAL, ITIMER_VIRTUAL\n\
or ITIMER_PROF) to fire after value seconds and after\n\
that every interval seconds.\n\
The itimer can be cleared by setting seconds to zero.\n\
\n\
Returns old values as a tuple: (delay, interval).");
#endif
#ifdef HAVE_GETITIMER
static PyObject *
signal_getitimer(PyObject *self, PyObject *args)
{
int which;
struct itimerval old;
if (!PyArg_ParseTuple(args, "i:getitimer", &which))
return NULL;
if (getitimer(which, &old) != 0) {
PyErr_SetFromErrno(ItimerError);
return NULL;
}
return itimer_retval(&old);
}
PyDoc_STRVAR(getitimer_doc,
"getitimer(which)\n\
\n\
Returns current value of given itimer.");
#endif
/* List of functions defined in the module */
static PyMethodDef signal_methods[] = {
#ifdef HAVE_ALARM
{"alarm", signal_alarm, METH_VARARGS, alarm_doc},
#endif
#ifdef HAVE_SETITIMER
{"setitimer", signal_setitimer, METH_VARARGS, setitimer_doc},
#endif
#ifdef HAVE_GETITIMER
{"getitimer", signal_getitimer, METH_VARARGS, getitimer_doc},
#endif
{"signal", signal_signal, METH_VARARGS, signal_doc},
{"getsignal", signal_getsignal, METH_VARARGS, getsignal_doc},
{"set_wakeup_fd", signal_set_wakeup_fd, METH_VARARGS, set_wakeup_fd_doc},
#ifdef HAVE_SIGINTERRUPT
{"siginterrupt", signal_siginterrupt, METH_VARARGS, siginterrupt_doc},
#endif
#ifdef HAVE_PAUSE
{"pause", (PyCFunction)signal_pause,
METH_NOARGS,pause_doc},
#endif
{"default_int_handler", signal_default_int_handler,
METH_VARARGS, default_int_handler_doc},
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(module_doc,
"This module provides mechanisms to use signal handlers in Python.\n\
\n\
Functions:\n\
\n\
alarm() -- cause SIGALRM after a specified time [Unix only]\n\
setitimer() -- cause a signal (described below) after a specified\n\
float time and the timer may restart then [Unix only]\n\
getitimer() -- get current value of timer [Unix only]\n\
signal() -- set the action for a given signal\n\
getsignal() -- get the signal action for a given signal\n\
pause() -- wait until a signal arrives [Unix only]\n\
default_int_handler() -- default SIGINT handler\n\
\n\
signal constants:\n\
SIG_DFL -- used to refer to the system default handler\n\
SIG_IGN -- used to ignore the signal\n\
NSIG -- number of defined signals\n\
SIGINT, SIGTERM, etc. -- signal numbers\n\
\n\
itimer constants:\n\
ITIMER_REAL -- decrements in real time, and delivers SIGALRM upon\n\
expiration\n\
ITIMER_VIRTUAL -- decrements only when the process is executing,\n\
and delivers SIGVTALRM upon expiration\n\
ITIMER_PROF -- decrements both when the process is executing and\n\
when the system is executing on behalf of the process.\n\
Coupled with ITIMER_VIRTUAL, this timer is usually\n\
used to profile the time spent by the application\n\
in user and kernel space. SIGPROF is delivered upon\n\
expiration.\n\
\n\n\
*** IMPORTANT NOTICE ***\n\
A signal handler function is called with two arguments:\n\
the first is the signal number, the second is the interrupted stack frame.");
static struct PyModuleDef signalmodule = {
PyModuleDef_HEAD_INIT,
"signal",
module_doc,
-1,
signal_methods,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit_signal(void)
{
PyObject *m, *d, *x;
int i;
#ifdef WITH_THREAD
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
#endif
/* Create the module and add the functions */
m = PyModule_Create(&signalmodule);
if (m == NULL)
return NULL;
/* Add some symbolic constants to the module */
d = PyModule_GetDict(m);
x = DefaultHandler = PyLong_FromVoidPtr((void *)SIG_DFL);
if (!x || PyDict_SetItemString(d, "SIG_DFL", x) < 0)
goto finally;
x = IgnoreHandler = PyLong_FromVoidPtr((void *)SIG_IGN);
if (!x || PyDict_SetItemString(d, "SIG_IGN", x) < 0)
goto finally;
x = PyLong_FromLong((long)NSIG);
if (!x || PyDict_SetItemString(d, "NSIG", x) < 0)
goto finally;
Py_DECREF(x);
x = IntHandler = PyDict_GetItemString(d, "default_int_handler");
if (!x)
goto finally;
Py_INCREF(IntHandler);
Handlers[0].tripped = 0;
for (i = 1; i < NSIG; i++) {
void (*t)(int);
t = PyOS_getsig(i);
Handlers[i].tripped = 0;
if (t == SIG_DFL)
Handlers[i].func = DefaultHandler;
else if (t == SIG_IGN)
Handlers[i].func = IgnoreHandler;
else
Handlers[i].func = Py_None; /* None of our business */
Py_INCREF(Handlers[i].func);
}
if (Handlers[SIGINT].func == DefaultHandler) {
/* Install default int handler */
Py_INCREF(IntHandler);
Py_DECREF(Handlers[SIGINT].func);
Handlers[SIGINT].func = IntHandler;
old_siginthandler = PyOS_setsig(SIGINT, signal_handler);
}
#ifdef SIGHUP
x = PyLong_FromLong(SIGHUP);
PyDict_SetItemString(d, "SIGHUP", x);
Py_XDECREF(x);
#endif
#ifdef SIGINT
x = PyLong_FromLong(SIGINT);
PyDict_SetItemString(d, "SIGINT", x);
Py_XDECREF(x);
#endif
#ifdef SIGBREAK
x = PyLong_FromLong(SIGBREAK);
PyDict_SetItemString(d, "SIGBREAK", x);
Py_XDECREF(x);
#endif
#ifdef SIGQUIT
x = PyLong_FromLong(SIGQUIT);
PyDict_SetItemString(d, "SIGQUIT", x);
Py_XDECREF(x);
#endif
#ifdef SIGILL
x = PyLong_FromLong(SIGILL);
PyDict_SetItemString(d, "SIGILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGTRAP
x = PyLong_FromLong(SIGTRAP);
PyDict_SetItemString(d, "SIGTRAP", x);
Py_XDECREF(x);
#endif
#ifdef SIGIOT
x = PyLong_FromLong(SIGIOT);
PyDict_SetItemString(d, "SIGIOT", x);
Py_XDECREF(x);
#endif
#ifdef SIGABRT
x = PyLong_FromLong(SIGABRT);
PyDict_SetItemString(d, "SIGABRT", x);
Py_XDECREF(x);
#endif
#ifdef SIGEMT
x = PyLong_FromLong(SIGEMT);
PyDict_SetItemString(d, "SIGEMT", x);
Py_XDECREF(x);
#endif
#ifdef SIGFPE
x = PyLong_FromLong(SIGFPE);
PyDict_SetItemString(d, "SIGFPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGKILL
x = PyLong_FromLong(SIGKILL);
PyDict_SetItemString(d, "SIGKILL", x);
Py_XDECREF(x);
#endif
#ifdef SIGBUS
x = PyLong_FromLong(SIGBUS);
PyDict_SetItemString(d, "SIGBUS", x);
Py_XDECREF(x);
#endif
#ifdef SIGSEGV
x = PyLong_FromLong(SIGSEGV);
PyDict_SetItemString(d, "SIGSEGV", x);
Py_XDECREF(x);
#endif
#ifdef SIGSYS
x = PyLong_FromLong(SIGSYS);
PyDict_SetItemString(d, "SIGSYS", x);
Py_XDECREF(x);
#endif
#ifdef SIGPIPE
x = PyLong_FromLong(SIGPIPE);
PyDict_SetItemString(d, "SIGPIPE", x);
Py_XDECREF(x);
#endif
#ifdef SIGALRM
x = PyLong_FromLong(SIGALRM);
PyDict_SetItemString(d, "SIGALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGTERM
x = PyLong_FromLong(SIGTERM);
PyDict_SetItemString(d, "SIGTERM", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR1
x = PyLong_FromLong(SIGUSR1);
PyDict_SetItemString(d, "SIGUSR1", x);
Py_XDECREF(x);
#endif
#ifdef SIGUSR2
x = PyLong_FromLong(SIGUSR2);
PyDict_SetItemString(d, "SIGUSR2", x);
Py_XDECREF(x);
#endif
#ifdef SIGCLD
x = PyLong_FromLong(SIGCLD);
PyDict_SetItemString(d, "SIGCLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGCHLD
x = PyLong_FromLong(SIGCHLD);
PyDict_SetItemString(d, "SIGCHLD", x);
Py_XDECREF(x);
#endif
#ifdef SIGPWR
x = PyLong_FromLong(SIGPWR);
PyDict_SetItemString(d, "SIGPWR", x);
Py_XDECREF(x);
#endif
#ifdef SIGIO
x = PyLong_FromLong(SIGIO);
PyDict_SetItemString(d, "SIGIO", x);
Py_XDECREF(x);
#endif
#ifdef SIGURG
x = PyLong_FromLong(SIGURG);
PyDict_SetItemString(d, "SIGURG", x);
Py_XDECREF(x);
#endif
#ifdef SIGWINCH
x = PyLong_FromLong(SIGWINCH);
PyDict_SetItemString(d, "SIGWINCH", x);
Py_XDECREF(x);
#endif
#ifdef SIGPOLL
x = PyLong_FromLong(SIGPOLL);
PyDict_SetItemString(d, "SIGPOLL", x);
Py_XDECREF(x);
#endif
#ifdef SIGSTOP
x = PyLong_FromLong(SIGSTOP);
PyDict_SetItemString(d, "SIGSTOP", x);
Py_XDECREF(x);
#endif
#ifdef SIGTSTP
x = PyLong_FromLong(SIGTSTP);
PyDict_SetItemString(d, "SIGTSTP", x);
Py_XDECREF(x);
#endif
#ifdef SIGCONT
x = PyLong_FromLong(SIGCONT);
PyDict_SetItemString(d, "SIGCONT", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTIN
x = PyLong_FromLong(SIGTTIN);
PyDict_SetItemString(d, "SIGTTIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGTTOU
x = PyLong_FromLong(SIGTTOU);
PyDict_SetItemString(d, "SIGTTOU", x);
Py_XDECREF(x);
#endif
#ifdef SIGVTALRM
x = PyLong_FromLong(SIGVTALRM);
PyDict_SetItemString(d, "SIGVTALRM", x);
Py_XDECREF(x);
#endif
#ifdef SIGPROF
x = PyLong_FromLong(SIGPROF);
PyDict_SetItemString(d, "SIGPROF", x);
Py_XDECREF(x);
#endif
#ifdef SIGXCPU
x = PyLong_FromLong(SIGXCPU);
PyDict_SetItemString(d, "SIGXCPU", x);
Py_XDECREF(x);
#endif
#ifdef SIGXFSZ
x = PyLong_FromLong(SIGXFSZ);
PyDict_SetItemString(d, "SIGXFSZ", x);
Py_XDECREF(x);
#endif
#ifdef SIGRTMIN
x = PyLong_FromLong(SIGRTMIN);
PyDict_SetItemString(d, "SIGRTMIN", x);
Py_XDECREF(x);
#endif
#ifdef SIGRTMAX
x = PyLong_FromLong(SIGRTMAX);
PyDict_SetItemString(d, "SIGRTMAX", x);
Py_XDECREF(x);
#endif
#ifdef SIGINFO
x = PyLong_FromLong(SIGINFO);
PyDict_SetItemString(d, "SIGINFO", x);
Py_XDECREF(x);
#endif
#ifdef ITIMER_REAL
x = PyLong_FromLong(ITIMER_REAL);
PyDict_SetItemString(d, "ITIMER_REAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_VIRTUAL
x = PyLong_FromLong(ITIMER_VIRTUAL);
PyDict_SetItemString(d, "ITIMER_VIRTUAL", x);
Py_DECREF(x);
#endif
#ifdef ITIMER_PROF
x = PyLong_FromLong(ITIMER_PROF);
PyDict_SetItemString(d, "ITIMER_PROF", x);
Py_DECREF(x);
#endif
#if defined (HAVE_SETITIMER) || defined (HAVE_GETITIMER)
ItimerError = PyErr_NewException("signal.ItimerError",
PyExc_IOError, NULL);
if (ItimerError != NULL)
PyDict_SetItemString(d, "ItimerError", ItimerError);
#endif
if (PyErr_Occurred()) {
Py_DECREF(m);
m = NULL;
}
finally:
return m;
}
static void
finisignal(void)
{
int i;
PyObject *func;
PyOS_setsig(SIGINT, old_siginthandler);
old_siginthandler = SIG_DFL;
for (i = 1; i < NSIG; i++) {
func = Handlers[i].func;
Handlers[i].tripped = 0;
Handlers[i].func = NULL;
if (i != SIGINT && func != NULL && func != Py_None &&
func != DefaultHandler && func != IgnoreHandler)
PyOS_setsig(i, SIG_DFL);
Py_XDECREF(func);
}
Py_XDECREF(IntHandler);
IntHandler = NULL;
Py_XDECREF(DefaultHandler);
DefaultHandler = NULL;
Py_XDECREF(IgnoreHandler);
IgnoreHandler = NULL;
}
/* Declared in pyerrors.h */
int
PyErr_CheckSignals(void)
{
int i;
PyObject *f;
if (!is_tripped)
return 0;
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
/*
* The is_stripped variable is meant to speed up the calls to
* PyErr_CheckSignals (both directly or via pending calls) when no
* signal has arrived. This variable is set to 1 when a signal arrives
* and it is set to 0 here, when we know some signals arrived. This way
* we can run the registered handlers with no signals blocked.
*
* NOTE: with this approach we can have a situation where is_tripped is
* 1 but we have no more signals to handle (Handlers[i].tripped
* is 0 for every signal i). This won't do us any harm (except
* we're gonna spent some cycles for nothing). This happens when
* we receive a signal i after we zero is_tripped and before we
* check Handlers[i].tripped.
*/
is_tripped = 0;
if (!(f = (PyObject *)PyEval_GetFrame()))
f = Py_None;
for (i = 1; i < NSIG; i++) {
if (Handlers[i].tripped) {
PyObject *result = NULL;
PyObject *arglist = Py_BuildValue("(iO)", i, f);
Handlers[i].tripped = 0;
if (arglist) {
result = PyEval_CallObject(Handlers[i].func,
arglist);
Py_DECREF(arglist);
}
if (!result)
return -1;
Py_DECREF(result);
}
}
return 0;
}
/* Replacements for intrcheck.c functionality
* Declared in pyerrors.h
*/
void
PyErr_SetInterrupt(void)
{
is_tripped = 1;
Handlers[SIGINT].tripped = 1;
Py_AddPendingCall((int (*)(void *))PyErr_CheckSignals, NULL);
}
void
PyOS_InitInterrupts(void)
{
PyObject *m = PyInit_signal();
if (m) {
_PyImport_FixupExtension(m, "signal", "signal");
Py_DECREF(m);
}
}
void
PyOS_FiniInterrupts(void)
{
finisignal();
}
int
PyOS_InterruptOccurred(void)
{
if (Handlers[SIGINT].tripped) {
#ifdef WITH_THREAD
if (PyThread_get_thread_ident() != main_thread)
return 0;
#endif
Handlers[SIGINT].tripped = 0;
return 1;
}
return 0;
}
void
PyOS_AfterFork(void)
{
#ifdef WITH_THREAD
PyEval_ReInitThreads();
main_thread = PyThread_get_thread_ident();
main_pid = getpid();
_PyImport_ReInitLock();
PyThread_ReInitTLS();
#endif
}
src/main/resource/testFiles/cpython/revFiles/1c76b7_d6056b_Modules#faulthandler.c
+998
View File
@@ -0,0 +1,998 @@
#include "Python.h"
#include "pythread.h"
#include <signal.h>
#include <object.h>
#include <frameobject.h>
#include <signal.h>
#ifdef WITH_THREAD
# define FAULTHANDLER_LATER
#endif
#ifndef MS_WINDOWS
/* register() is useless on Windows, because only SIGSEGV and SIGILL can be
handled by the process, and these signals can only be used with enable(),
not using register() */
# define FAULTHANDLER_USER
#endif
/* Allocate at maximum 100 MB of the stack to raise the stack overflow */
#define STACK_OVERFLOW_MAX_SIZE (100*1024*1024)
#define PUTS(fd, str) write(fd, str, strlen(str))
#ifdef HAVE_SIGACTION
typedef struct sigaction _Py_sighandler_t;
#else
typedef PyOS_sighandler_t _Py_sighandler_t;
#endif
typedef struct {
int signum;
int enabled;
const char* name;
_Py_sighandler_t previous;
int all_threads;
} fault_handler_t;
static struct {
int enabled;
PyObject *file;
int fd;
int all_threads;
} fatal_error = {0, NULL, -1, 0};
#ifdef FAULTHANDLER_LATER
static struct {
PyObject *file;
int fd;
PY_TIMEOUT_T timeout_ms; /* timeout in microseconds */
int repeat;
volatile int running;
PyInterpreterState *interp;
int exit;
/* released by parent thread when cancel request */
PyThread_type_lock cancel_event;
/* released by child thread when joined */
PyThread_type_lock join_event;
} thread;
#endif
#ifdef FAULTHANDLER_USER
typedef struct {
int enabled;
PyObject *file;
int fd;
int all_threads;
_Py_sighandler_t previous;
} user_signal_t;
static user_signal_t *user_signals;
/* the following macros come from Python: Modules/signalmodule.c */
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
#define NSIG 12
#endif
#ifndef NSIG
# if defined(_NSIG)
# define NSIG _NSIG /* For BSD/SysV */
# elif defined(_SIGMAX)
# define NSIG (_SIGMAX + 1) /* For QNX */
# elif defined(SIGMAX)
# define NSIG (SIGMAX + 1) /* For djgpp */
# else
# define NSIG 64 /* Use a reasonable default value */
# endif
#endif
#endif /* FAULTHANDLER_USER */
static fault_handler_t faulthandler_handlers[] = {
#ifdef SIGBUS
{SIGBUS, 0, "Bus error", },
#endif
#ifdef SIGILL
{SIGILL, 0, "Illegal instruction", },
#endif
{SIGFPE, 0, "Floating point exception", },
/* define SIGSEGV at the end to make it the default choice if searching the
handler fails in faulthandler_fatal_error() */
{SIGSEGV, 0, "Segmentation fault", }
};
static const unsigned char faulthandler_nsignals = \
sizeof(faulthandler_handlers) / sizeof(faulthandler_handlers[0]);
#ifdef HAVE_SIGALTSTACK
static stack_t stack;
#endif
/* Get the file descriptor of a file by calling its fileno() method and then
call its flush() method.
If file is NULL or Py_None, use sys.stderr as the new file.
On success, return the new file and write the file descriptor into *p_fd.
On error, return NULL. */
static PyObject*
faulthandler_get_fileno(PyObject *file, int *p_fd)
{
PyObject *result;
long fd_long;
int fd;
if (file == NULL || file == Py_None) {
file = PySys_GetObject("stderr");
if (file == NULL) {
PyErr_SetString(PyExc_RuntimeError, "unable to get sys.stderr");
return NULL;
}
}
result = PyObject_CallMethod(file, "fileno", "");
if (result == NULL)
return NULL;
fd = -1;
if (PyLong_Check(result)) {
fd_long = PyLong_AsLong(result);
if (0 <= fd_long && fd_long < INT_MAX)
fd = (int)fd_long;
}
Py_DECREF(result);
if (fd == -1) {
PyErr_SetString(PyExc_RuntimeError,
"file.fileno() is not a valid file descriptor");
return NULL;
}
result = PyObject_CallMethod(file, "flush", "");
if (result != NULL)
Py_DECREF(result);
else {
/* ignore flush() error */
PyErr_Clear();
}
*p_fd = fd;
return file;
}
static PyObject*
faulthandler_dump_traceback_py(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"file", "all_threads", NULL};
PyObject *file = NULL;
int all_threads = 0;
PyThreadState *tstate;
const char *errmsg;
int fd;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|Oi:dump_traceback", kwlist,
&file, &all_threads))
return NULL;
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
/* The caller holds the GIL and so PyThreadState_Get() can be used */
tstate = PyThreadState_Get();
if (tstate == NULL) {
PyErr_SetString(PyExc_RuntimeError,
"unable to get the current thread state");
return NULL;
}
if (all_threads) {
errmsg = _Py_DumpTracebackThreads(fd, tstate->interp, tstate);
if (errmsg != NULL) {
PyErr_SetString(PyExc_RuntimeError, errmsg);
return NULL;
}
}
else {
_Py_DumpTraceback(fd, tstate);
}
Py_RETURN_NONE;
}
/* Handler of SIGSEGV, SIGFPE, SIGBUS and SIGILL signals.
Display the current Python traceback, restore the previous handler and call
the previous handler.
On Windows, don't call explictly the previous handler, because Windows
signal handler would not be called (for an unknown reason). The execution of
the program continues at faulthandler_fatal_error() exit, but the same
instruction will raise the same fault (signal), and so the previous handler
will be called.
This function is signal safe and should only call signal safe functions. */
static void
faulthandler_fatal_error(
int signum
#ifdef HAVE_SIGACTION
, siginfo_t *siginfo, void *ucontext
#endif
)
{
const int fd = fatal_error.fd;
unsigned int i;
fault_handler_t *handler = NULL;
PyThreadState *tstate;
if (!fatal_error.enabled)
return;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
if (handler->signum == signum)
break;
}
if (handler == NULL) {
/* faulthandler_nsignals == 0 (unlikely) */
return;
}
/* restore the previous handler */
#ifdef HAVE_SIGACTION
(void)sigaction(handler->signum, &handler->previous, NULL);
#else
(void)signal(handler->signum, handler->previous);
#endif
handler->enabled = 0;
PUTS(fd, "Fatal Python error: ");
PUTS(fd, handler->name);
PUTS(fd, "\n\n");
/* SIGSEGV, SIGFPE, SIGBUS and SIGILL are synchronous signals and so are
delivered to the thread that caused the fault. Get the Python thread
state of the current thread.
PyThreadState_Get() doesn't give the state of the thread that caused the
fault if the thread released the GIL, and so this function cannot be
used. Read the thread local storage (TLS) instead: call
PyGILState_GetThisThreadState(). */
tstate = PyGILState_GetThisThreadState();
if (tstate == NULL)
return;
if (fatal_error.all_threads)
_Py_DumpTracebackThreads(fd, tstate->interp, tstate);
else
_Py_DumpTraceback(fd, tstate);
#ifndef MS_WINDOWS
/* call the previous signal handler: it is called if we use sigaction()
thanks to SA_NODEFER flag, otherwise it is deferred */
raise(signum);
#else
/* on Windows, don't call explictly the previous handler, because Windows
signal handler would not be called */
#endif
}
/* Install handler for fatal signals (SIGSEGV, SIGFPE, ...). */
static PyObject*
faulthandler_enable(PyObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"file", "all_threads", NULL};
PyObject *file = NULL;
int all_threads = 0;
unsigned int i;
fault_handler_t *handler;
#ifdef HAVE_SIGACTION
struct sigaction action;
#endif
int err;
int fd;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|Oi:enable", kwlist, &file, &all_threads))
return NULL;
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
Py_XDECREF(fatal_error.file);
Py_INCREF(file);
fatal_error.file = file;
fatal_error.fd = fd;
fatal_error.all_threads = all_threads;
if (!fatal_error.enabled) {
fatal_error.enabled = 1;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
#ifdef HAVE_SIGACTION
action.sa_sigaction = faulthandler_fatal_error;
sigemptyset(&action.sa_mask);
/* Do not prevent the signal from being received from within
its own signal handler */
action.sa_flags = SA_NODEFER;
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
/* Call the signal handler on an alternate signal stack
provided by sigaltstack() */
action.sa_flags |= SA_ONSTACK;
}
#endif
err = sigaction(handler->signum, &action, &handler->previous);
#else
handler->previous = signal(handler->signum,
faulthandler_fatal_error);
err = (handler->previous == SIG_ERR);
#endif
if (err) {
PyErr_SetFromErrno(PyExc_RuntimeError);
return NULL;
}
handler->enabled = 1;
}
}
Py_RETURN_NONE;
}
static void
faulthandler_disable(void)
{
unsigned int i;
fault_handler_t *handler;
if (fatal_error.enabled) {
fatal_error.enabled = 0;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
if (!handler->enabled)
continue;
#ifdef HAVE_SIGACTION
(void)sigaction(handler->signum, &handler->previous, NULL);
#else
(void)signal(handler->signum, handler->previous);
#endif
handler->enabled = 0;
}
}
Py_CLEAR(fatal_error.file);
}
static PyObject*
faulthandler_disable_py(PyObject *self)
{
if (!fatal_error.enabled) {
Py_INCREF(Py_False);
return Py_False;
}
faulthandler_disable();
Py_INCREF(Py_True);
return Py_True;
}
static PyObject*
faulthandler_is_enabled(PyObject *self)
{
return PyBool_FromLong(fatal_error.enabled);
}
#ifdef FAULTHANDLER_LATER
static void
faulthandler_thread(void *unused)
{
PyLockStatus st;
const char* errmsg;
PyThreadState *current;
int ok;
do {
st = PyThread_acquire_lock_timed(thread.cancel_event,
thread.timeout_ms, 0);
if (st == PY_LOCK_ACQUIRED) {
/* Cancelled by user */
PyThread_release_lock(thread.cancel_event);
break;
}
/* Timeout => dump traceback */
assert(st == PY_LOCK_FAILURE);
/* get the thread holding the GIL, NULL if no thread hold the GIL */
current = _Py_atomic_load_relaxed(&_PyThreadState_Current);
errmsg = _Py_DumpTracebackThreads(thread.fd, thread.interp, current);
ok = (errmsg == NULL);
if (thread.exit)
_exit(1);
} while (ok && thread.repeat);
/* The only way out */
thread.running = 0;
PyThread_release_lock(thread.join_event);
}
static void
faulthandler_cancel_dump_tracebacks_later(void)
{
if (thread.running) {
/* Notify cancellation */
PyThread_release_lock(thread.cancel_event);
/* Wait for thread to join */
PyThread_acquire_lock(thread.join_event, 1);
assert(thread.running == 0);
PyThread_release_lock(thread.join_event);
}
Py_CLEAR(thread.file);
}
static PyObject*
faulthandler_dump_traceback_later(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"timeout", "repeat", "file", "exit", NULL};
double timeout;
PY_TIMEOUT_T timeout_ms;
int repeat = 0;
PyObject *file = NULL;
int fd;
int exit = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"d|iOi:dump_tracebacks_later", kwlist,
&timeout, &repeat, &file, &exit))
return NULL;
timeout *= 1e6;
if (timeout >= (double) PY_TIMEOUT_MAX) {
PyErr_SetString(PyExc_OverflowError, "timeout value is too large");
return NULL;
}
timeout_ms = (PY_TIMEOUT_T)timeout;
if (timeout_ms <= 0) {
PyErr_SetString(PyExc_ValueError, "timeout must be greater than 0");
return NULL;
}
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
/* Cancel previous thread, if running */
faulthandler_cancel_dump_tracebacks_later();
Py_XDECREF(thread.file);
Py_INCREF(file);
thread.file = file;
thread.fd = fd;
thread.timeout_ms = timeout_ms;
thread.repeat = repeat;
thread.interp = PyThreadState_Get()->interp;
thread.exit = exit;
/* Arm these locks to serve as events when released */
PyThread_acquire_lock(thread.join_event, 1);
PyThread_acquire_lock(thread.cancel_event, 1);
thread.running = 1;
if (PyThread_start_new_thread(faulthandler_thread, NULL) == -1) {
thread.running = 0;
Py_CLEAR(thread.file);
PyErr_SetString(PyExc_RuntimeError,
"unable to start watchdog thread");
return NULL;
}
Py_RETURN_NONE;
}
static PyObject*
faulthandler_cancel_dump_tracebacks_later_py(PyObject *self)
{
faulthandler_cancel_dump_tracebacks_later();
Py_RETURN_NONE;
}
#endif /* FAULTHANDLER_LATER */
#ifdef FAULTHANDLER_USER
/* Handler of user signals (e.g. SIGUSR1).
Dump the traceback of the current thread, or of all threads if
thread.all_threads is true.
This function is signal safe and should only call signal safe functions. */
static void
faulthandler_user(int signum)
{
user_signal_t *user;
PyThreadState *tstate;
user = &user_signals[signum];
if (!user->enabled)
return;
/* PyThreadState_Get() doesn't give the state of the current thread if
the thread doesn't hold the GIL. Read the thread local storage (TLS)
instead: call PyGILState_GetThisThreadState(). */
tstate = PyGILState_GetThisThreadState();
if (tstate == NULL) {
/* unable to get the current thread, do nothing */
return;
}
if (user->all_threads)
_Py_DumpTracebackThreads(user->fd, tstate->interp, tstate);
else
_Py_DumpTraceback(user->fd, tstate);
}
static PyObject*
faulthandler_register(PyObject *self,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"signum", "file", "all_threads", NULL};
int signum;
PyObject *file = NULL;
int all_threads = 0;
int fd;
unsigned int i;
user_signal_t *user;
_Py_sighandler_t previous;
#ifdef HAVE_SIGACTION
struct sigaction action;
#endif
int err;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"i|Oi:register", kwlist,
&signum, &file, &all_threads))
return NULL;
if (signum < 1 || NSIG <= signum) {
PyErr_SetString(PyExc_ValueError, "signal number out of range");
return NULL;
}
for (i=0; i < faulthandler_nsignals; i++) {
if (faulthandler_handlers[i].signum == signum) {
PyErr_Format(PyExc_RuntimeError,
"signal %i cannot be registered by register(), "
"use enable() instead",
signum);
return NULL;
}
}
file = faulthandler_get_fileno(file, &fd);
if (file == NULL)
return NULL;
if (user_signals == NULL) {
user_signals = calloc(NSIG, sizeof(user_signal_t));
if (user_signals == NULL)
return PyErr_NoMemory();
}
user = &user_signals[signum];
if (!user->enabled) {
#ifdef HAVE_SIGACTION
action.sa_handler = faulthandler_user;
sigemptyset(&action.sa_mask);
/* if the signal is received while the kernel is executing a system
call, try to restart the system call instead of interrupting it and
return EINTR */
action.sa_flags = SA_RESTART;
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
/* Call the signal handler on an alternate signal stack
provided by sigaltstack() */
action.sa_flags |= SA_ONSTACK;
}
#endif
err = sigaction(signum, &action, &previous);
#else
previous = signal(signum, faulthandler_user);
err = (previous == SIG_ERR);
#endif
if (err) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
}
Py_XDECREF(user->file);
Py_INCREF(file);
user->file = file;
user->fd = fd;
user->all_threads = all_threads;
user->previous = previous;
user->enabled = 1;
Py_RETURN_NONE;
}
static int
faulthandler_unregister(user_signal_t *user, int signum)
{
if (user->enabled)
return 0;
user->enabled = 0;
#ifdef HAVE_SIGACTION
(void)sigaction(signum, &user->previous, NULL);
#else
(void)signal(signum, user->previous);
#endif
Py_CLEAR(user->file);
user->fd = -1;
return 1;
}
static PyObject*
faulthandler_unregister_py(PyObject *self, PyObject *args)
{
int signum;
user_signal_t *user;
int change;
if (!PyArg_ParseTuple(args, "i:unregister", &signum))
return NULL;
if (signum < 1 || NSIG <= signum) {
PyErr_SetString(PyExc_ValueError, "signal number out of range");
return NULL;
}
user = &user_signals[signum];
change = faulthandler_unregister(user, signum);
return PyBool_FromLong(change);
}
#endif /* FAULTHANDLER_USER */
static PyObject *
faulthandler_read_null(PyObject *self, PyObject *args)
{
int *x = NULL, y;
int release_gil = 0;
if (!PyArg_ParseTuple(args, "|i:_read_null", &release_gil))
return NULL;
if (release_gil) {
Py_BEGIN_ALLOW_THREADS
y = *x;
Py_END_ALLOW_THREADS
} else
y = *x;
return PyLong_FromLong(y);
}
static PyObject *
faulthandler_sigsegv(PyObject *self, PyObject *args)
{
#if defined(MS_WINDOWS)
/* faulthandler_fatal_error() restores the previous signal handler and then
gives back the execution flow to the program. In a normal case, the
SIGSEGV was raised by the kernel because of a fault, and so if the
program retries to execute the same instruction, the fault will be
raised again.
Here the fault is simulated by a fake SIGSEGV signal raised by the
application. We have to raise SIGSEGV at lease twice: once for
faulthandler_fatal_error(), and one more time for the previous signal
handler. */
while(1)
raise(SIGSEGV);
#else
raise(SIGSEGV);
#endif
Py_RETURN_NONE;
}
static PyObject *
faulthandler_sigfpe(PyObject *self, PyObject *args)
{
/* Do an integer division by zero: raise a SIGFPE on Intel CPU, but not on
PowerPC. Use volatile to disable compile-time optimizations. */
volatile int x = 1, y = 0, z;
z = x / y;
/* if the division by zero didn't raise a SIGFPE, raise it manually */
raise(SIGFPE);
Py_RETURN_NONE;
}
#ifdef SIGBUS
static PyObject *
faulthandler_sigbus(PyObject *self, PyObject *args)
{
raise(SIGBUS);
Py_RETURN_NONE;
}
#endif
#ifdef SIGILL
static PyObject *
faulthandler_sigill(PyObject *self, PyObject *args)
{
#if defined(MS_WINDOWS)
/* see faulthandler_sigsegv() for the explanation about while(1) */
while(1)
raise(SIGILL);
#else
raise(SIGILL);
#endif
Py_RETURN_NONE;
}
#endif
static PyObject *
faulthandler_fatal_error_py(PyObject *self, PyObject *args)
{
char *message;
if (!PyArg_ParseTuple(args, "y:fatal_error", &message))
return NULL;
Py_FatalError(message);
Py_RETURN_NONE;
}
#if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGACTION)
void*
stack_overflow(void *min_sp, void *max_sp, size_t *depth)
{
/* allocate 4096 bytes on the stack at each call */
unsigned char buffer[4096];
void *sp = &buffer;
*depth += 1;
if (sp < min_sp || max_sp < sp)
return sp;
buffer[0] = 1;
buffer[4095] = 0;
return stack_overflow(min_sp, max_sp, depth);
}
static PyObject *
faulthandler_stack_overflow(PyObject *self)
{
size_t depth, size;
void *sp = &depth, *stop;
depth = 0;
stop = stack_overflow(sp - STACK_OVERFLOW_MAX_SIZE,
sp + STACK_OVERFLOW_MAX_SIZE,
&depth);
if (sp < stop)
size = stop - sp;
else
size = sp - stop;
PyErr_Format(PyExc_RuntimeError,
"unable to raise a stack overflow (allocated %zu bytes "
"on the stack, %zu recursive calls)",
size, depth);
return NULL;
}
#endif
static int
faulthandler_traverse(PyObject *module, visitproc visit, void *arg)
{
#ifdef FAULTHANDLER_USER
unsigned int index;
#endif
#ifdef FAULTHANDLER_LATER
Py_VISIT(thread.file);
#endif
#ifdef FAULTHANDLER_USER
if (user_signals != NULL) {
for (index=0; index < NSIG; index++)
Py_VISIT(user_signals[index].file);
}
#endif
Py_VISIT(fatal_error.file);
return 0;
}
PyDoc_STRVAR(module_doc,
"faulthandler module.");
static PyMethodDef module_methods[] = {
{"enable",
(PyCFunction)faulthandler_enable, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("enable(file=sys.stderr, all_threads=False): "
"enable the fault handler")},
{"disable", (PyCFunction)faulthandler_disable_py, METH_NOARGS,
PyDoc_STR("disable(): disable the fault handler")},
{"is_enabled", (PyCFunction)faulthandler_is_enabled, METH_NOARGS,
PyDoc_STR("is_enabled()->bool: check if the handler is enabled")},
{"dump_traceback",
(PyCFunction)faulthandler_dump_traceback_py, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("dump_traceback(file=sys.stderr, all_threads=False): "
"dump the traceback of the current thread, or of all threads "
"if all_threads is True, into file")},
#ifdef FAULTHANDLER_LATER
{"dump_tracebacks_later",
(PyCFunction)faulthandler_dump_traceback_later, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("dump_tracebacks_later(timeout, repeat=False, file=sys.stderr):\n"
"dump the traceback of all threads in timeout seconds,\n"
"or each timeout seconds if repeat is True.")},
{"cancel_dump_tracebacks_later",
(PyCFunction)faulthandler_cancel_dump_tracebacks_later_py, METH_NOARGS,
PyDoc_STR("cancel_dump_tracebacks_later():\ncancel the previous call "
"to dump_tracebacks_later().")},
#endif
#ifdef FAULTHANDLER_USER
{"register",
(PyCFunction)faulthandler_register, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("register(signum, file=sys.stderr, all_threads=False): "
"register an handler for the signal 'signum': dump the "
"traceback of the current thread, or of all threads if "
"all_threads is True, into file")},
{"unregister",
faulthandler_unregister_py, METH_VARARGS|METH_KEYWORDS,
PyDoc_STR("unregister(signum): unregister the handler of the signal "
"'signum' registered by register()")},
#endif
{"_read_null", faulthandler_read_null, METH_VARARGS,
PyDoc_STR("_read_null(release_gil=False): read from NULL, raise "
"a SIGSEGV or SIGBUS signal depending on the platform")},
{"_sigsegv", faulthandler_sigsegv, METH_VARARGS,
PyDoc_STR("_sigsegv(): raise a SIGSEGV signal")},
{"_sigfpe", (PyCFunction)faulthandler_sigfpe, METH_NOARGS,
PyDoc_STR("_sigfpe(): raise a SIGFPE signal")},
#ifdef SIGBUS
{"_sigbus", (PyCFunction)faulthandler_sigbus, METH_NOARGS,
PyDoc_STR("_sigbus(): raise a SIGBUS signal")},
#endif
#ifdef SIGILL
{"_sigill", (PyCFunction)faulthandler_sigill, METH_NOARGS,
PyDoc_STR("_sigill(): raise a SIGILL signal")},
#endif
{"_fatal_error", faulthandler_fatal_error_py, METH_VARARGS,
PyDoc_STR("_fatal_error(message): call Py_FatalError(message)")},
#if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGACTION)
{"_stack_overflow", (PyCFunction)faulthandler_stack_overflow, METH_NOARGS,
PyDoc_STR("_stack_overflow(): recursive call to raise a stack overflow")},
#endif
{NULL, NULL} /* terminator */
};
static struct PyModuleDef module_def = {
PyModuleDef_HEAD_INIT,
"faulthandler",
module_doc,
0, /* non negative size to be able to unload the module */
module_methods,
NULL,
faulthandler_traverse,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit_faulthandler(void)
{
return PyModule_Create(&module_def);
}
/* Call faulthandler.enable() if PYTHONFAULTHANDLER environment variable is
defined, or if sys._xoptions has a 'faulthandler' key. */
static int
faulthandler_env_options(void)
{
PyObject *xoptions, *key, *module, *res;
int enable;
if (!Py_GETENV("PYTHONFAULTHANDLER")) {
xoptions = PySys_GetXOptions();
if (xoptions == NULL)
return -1;
key = PyUnicode_FromString("faulthandler");
if (key == NULL)
return -1;
enable = PyDict_Contains(xoptions, key);
Py_DECREF(key);
if (!enable)
return 0;
}
else
enable = 1;
module = PyImport_ImportModule("faulthandler");
if (module == NULL) {
return -1;
}
res = PyObject_CallMethod(module, "enable", "");
Py_DECREF(module);
if (res == NULL)
return -1;
Py_DECREF(res);
return 0;
}
int _PyFaulthandler_Init(void)
{
#ifdef HAVE_SIGALTSTACK
int err;
/* Try to allocate an alternate stack for faulthandler() signal handler to
* be able to allocate memory on the stack, even on a stack overflow. If it
* fails, ignore the error. */
stack.ss_flags = 0;
stack.ss_size = SIGSTKSZ;
stack.ss_sp = PyMem_Malloc(stack.ss_size);
if (stack.ss_sp != NULL) {
err = sigaltstack(&stack, NULL);
if (err) {
PyMem_Free(stack.ss_sp);
stack.ss_sp = NULL;
}
}
#endif
#ifdef FAULTHANDLER_LATER
thread.running = 0;
thread.file = NULL;
thread.cancel_event = PyThread_allocate_lock();
thread.join_event = PyThread_allocate_lock();
if (!thread.cancel_event || !thread.join_event) {
PyErr_SetString(PyExc_RuntimeError,
"could not allocate locks for faulthandler");
return -1;
}
#endif
return faulthandler_env_options();
}
void _PyFaulthandler_Fini(void)
{
#ifdef FAULTHANDLER_USER
unsigned int i;
#endif
#ifdef FAULTHANDLER_LATER
/* later */
faulthandler_cancel_dump_tracebacks_later();
if (thread.cancel_event) {
PyThread_free_lock(thread.cancel_event);
thread.cancel_event = NULL;
}
if (thread.join_event) {
PyThread_free_lock(thread.join_event);
thread.join_event = NULL;
}
#endif
#ifdef FAULTHANDLER_USER
/* user */
if (user_signals != NULL) {
for (i=0; i < NSIG; i++)
faulthandler_unregister(&user_signals[i], i+1);
free(user_signals);
user_signals = NULL;
}
#endif
/* fatal */
faulthandler_disable();
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
PyMem_Free(stack.ss_sp);
stack.ss_sp = NULL;
}
#endif
}
src/main/resource/testFiles/cpython/revFiles/58fb90_c9e435_Modules#_stringio.c
+383
View File
@@ -0,0 +1,383 @@
#include "Python.h"
/* This module is a stripped down version of _bytesio.c with a Py_UNICODE
buffer. Most of the functionality is provided by subclassing _StringIO. */
typedef struct {
PyObject_HEAD
Py_UNICODE *buf;
Py_ssize_t pos;
Py_ssize_t string_size;
size_t buf_size;
} StringIOObject;
/* Internal routine for changing the size, in terms of characters, of the
buffer of StringIO objects. The caller should ensure that the 'size'
argument is non-negative. Returns 0 on success, -1 otherwise. */
static int
resize_buffer(StringIOObject *self, size_t size)
{
/* Here, unsigned types are used to avoid dealing with signed integer
overflow, which is undefined in C. */
size_t alloc = self->buf_size;
Py_UNICODE *new_buf = NULL;
assert(self->buf != NULL);
/* For simplicity, stay in the range of the signed type. Anyway, Python
doesn't allow strings to be longer than this. */
if (size > PY_SSIZE_T_MAX)
goto overflow;
if (size < alloc / 2) {
/* Major downsize; resize down to exact size. */
alloc = size + 1;
}
else if (size < alloc) {
/* Within allocated size; quick exit */
return 0;
}
else if (size <= alloc * 1.125) {
/* Moderate upsize; overallocate similar to list_resize() */
alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
}
else {
/* Major upsize; resize up to exact size */
alloc = size + 1;
}
if (alloc > ((size_t)-1) / sizeof(Py_UNICODE))
goto overflow;
new_buf = (Py_UNICODE *)PyMem_Realloc(self->buf,
alloc * sizeof(Py_UNICODE));
if (new_buf == NULL) {
PyErr_NoMemory();
return -1;
}
self->buf_size = alloc;
self->buf = new_buf;
return 0;
overflow:
PyErr_SetString(PyExc_OverflowError,
"new buffer size too large");
return -1;
}
/* Internal routine for writing a string of characters to the buffer of a
StringIO object. Returns the number of bytes wrote, or -1 on error. */
static Py_ssize_t
write_str(StringIOObject *self, const Py_UNICODE *str, Py_ssize_t len)
{
assert(self->buf != NULL);
assert(self->pos >= 0);
assert(len >= 0);
/* This overflow check is not strictly necessary. However, it avoids us to
deal with funky things like comparing an unsigned and a signed
integer. */
if (self->pos > PY_SSIZE_T_MAX - len) {
PyErr_SetString(PyExc_OverflowError,
"new position too large");
return -1;
}
if (self->pos + len > self->string_size) {
if (resize_buffer(self, self->pos + len) < 0)
return -1;
}
if (self->pos > self->string_size) {
/* In case of overseek, pad with null bytes the buffer region between
the end of stream and the current position.
0 lo string_size hi
| |<---used--->|<----------available----------->|
| | <--to pad-->|<---to write---> |
0 buf positon
*/
memset(self->buf + self->string_size, '\0',
(self->pos - self->string_size) * sizeof(Py_UNICODE));
}
/* Copy the data to the internal buffer, overwriting some of the
existing data if self->pos < self->string_size. */
memcpy(self->buf + self->pos, str, len * sizeof(Py_UNICODE));
self->pos += len;
/* Set the new length of the internal string if it has changed */
if (self->string_size < self->pos) {
self->string_size = self->pos;
}
return len;
}
static PyObject *
stringio_getvalue(StringIOObject *self)
{
return PyUnicode_FromUnicode(self->buf, self->string_size);
}
static PyObject *
stringio_tell(StringIOObject *self)
{
return PyLong_FromSsize_t(self->pos);
}
static PyObject *
stringio_read(StringIOObject *self, PyObject *args)
{
Py_ssize_t size, n;
Py_UNICODE *output;
PyObject *arg = Py_None;
if (!PyArg_ParseTuple(args, "|O:read", &arg))
return NULL;
if (PyLong_Check(arg)) {
size = PyLong_AsSsize_t(arg);
if (size == -1 && PyErr_Occurred())
return NULL;
}
else if (arg == Py_None) {
/* Read until EOF is reached, by default. */
size = -1;
}
else {
PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
Py_TYPE(arg)->tp_name);
return NULL;
}
/* adjust invalid sizes */
n = self->string_size - self->pos;
if (size < 0 || size > n) {
size = n;
if (size < 0)
size = 0;
}
assert(self->buf != NULL);
output = self->buf + self->pos;
self->pos += size;
return PyUnicode_FromUnicode(output, size);
}
static PyObject *
stringio_truncate(StringIOObject *self, PyObject *args)
{
Py_ssize_t size;
PyObject *arg = Py_None;
if (!PyArg_ParseTuple(args, "|O:truncate", &arg))
return NULL;
if (PyLong_Check(arg)) {
size = PyLong_AsSsize_t(arg);
if (size == -1 && PyErr_Occurred())
return NULL;
}
else if (arg == Py_None) {
/* Truncate to current position if no argument is passed. */
size = self->pos;
}
else {
PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
Py_TYPE(arg)->tp_name);
return NULL;
}
if (size < 0) {
PyErr_Format(PyExc_ValueError,
"Negative size value %zd", size);
return NULL;
}
if (size < self->string_size) {
self->string_size = size;
if (resize_buffer(self, size) < 0)
return NULL;
}
self->pos = size;
return PyLong_FromSsize_t(size);
}
static PyObject *
stringio_seek(StringIOObject *self, PyObject *args)
{
Py_ssize_t pos;
int mode = 0;
if (!PyArg_ParseTuple(args, "n|i:seek", &pos, &mode))
return NULL;
if (mode != 0 && mode != 1 && mode != 2) {
PyErr_Format(PyExc_ValueError,
"Invalid whence (%i, should be 0, 1 or 2)", mode);
return NULL;
}
else if (pos < 0 && mode == 0) {
PyErr_Format(PyExc_ValueError,
"Negative seek position %zd", pos);
return NULL;
}
else if (mode != 0 && pos != 0) {
PyErr_SetString(PyExc_IOError,
"Can't do nonzero cur-relative seeks");
return NULL;
}
/* mode 0: offset relative to beginning of the string.
mode 1: no change to current position.
mode 2: change position to end of file. */
if (mode == 1) {
pos = self->pos;
}
else if (mode == 2) {
pos = self->string_size;
}
self->pos = pos;
return PyLong_FromSsize_t(self->pos);
}
static PyObject *
stringio_write(StringIOObject *self, PyObject *obj)
{
const Py_UNICODE *str;
Py_ssize_t size;
Py_ssize_t n = 0;
if (PyUnicode_Check(obj)) {
str = PyUnicode_AsUnicode(obj);
size = PyUnicode_GetSize(obj);
}
else {
PyErr_Format(PyExc_TypeError, "string argument expected, got '%s'",
Py_TYPE(obj)->tp_name);
return NULL;
}
if (size != 0) {
n = write_str(self, str, size);
if (n < 0)
return NULL;
}
return PyLong_FromSsize_t(n);
}
static void
stringio_dealloc(StringIOObject *self)
{
PyMem_Free(self->buf);
Py_TYPE(self)->tp_free(self);
}
static PyObject *
stringio_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
StringIOObject *self;
assert(type != NULL && type->tp_alloc != NULL);
self = (StringIOObject *)type->tp_alloc(type, 0);
if (self == NULL)
return NULL;
self->string_size = 0;
self->pos = 0;
self->buf_size = 0;
self->buf = (Py_UNICODE *)PyMem_Malloc(0);
if (self->buf == NULL) {
Py_DECREF(self);
return PyErr_NoMemory();
}
return (PyObject *)self;
}
static struct PyMethodDef stringio_methods[] = {
{"getvalue", (PyCFunction)stringio_getvalue, METH_VARARGS, NULL},
{"read", (PyCFunction)stringio_read, METH_VARARGS, NULL},
{"tell", (PyCFunction)stringio_tell, METH_NOARGS, NULL},
{"truncate", (PyCFunction)stringio_truncate, METH_VARARGS, NULL},
{"seek", (PyCFunction)stringio_seek, METH_VARARGS, NULL},
{"write", (PyCFunction)stringio_write, METH_O, NULL},
{NULL, NULL} /* sentinel */
};
static PyTypeObject StringIO_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_stringio._StringIO", /*tp_name*/
sizeof(StringIOObject), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)stringio_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
stringio_methods, /*tp_methods*/
0, /*tp_members*/
0, /*tp_getset*/
0, /*tp_base*/
0, /*tp_dict*/
0, /*tp_descr_get*/
0, /*tp_descr_set*/
0, /*tp_dictoffset*/
0, /*tp_init*/
0, /*tp_alloc*/
stringio_new, /*tp_new*/
};
static struct PyModuleDef _stringiomodule = {
PyModuleDef_HEAD_INIT,
"_stringio",
NULL,
-1,
NULL,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit__stringio(void)
{
PyObject *m;
if (PyType_Ready(&StringIO_Type) < 0)
return NULL;
m = PyModule_Create(&_stringiomodule);
if (m == NULL)
return NULL;
Py_INCREF(&StringIO_Type);
if (PyModule_AddObject(m, "_StringIO", (PyObject *)&StringIO_Type) < 0)
return NULL;
return m;
}
src/main/resource/testFiles/lighttpd1.4/prevFiles/prev_f27b8d_4a86d3_src#connections.c
+1707
View File
File diff suppressed because it is too large Load Diff
src/main/resource/testFiles/lighttpd1.4/revFiles/f27b8d_4a86d3_src#connections.c
+1708
View File
File diff suppressed because it is too large Load Diff
src/main/resource/testFiles/php-src/prevFiles/prev_acd809_1d3d39_ext#standard#scanf.c
+1259
View File
File diff suppressed because it is too large Load Diff
src/main/resource/testFiles/php-src/prevFiles/prev_cf4a29_40becd_main#safe_mode.c
+198
View File
@@ -0,0 +1,198 @@
/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2002 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include <stdio.h>
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/stat.h>
#include "ext/standard/pageinfo.h"
#include "safe_mode.h"
#include "SAPI.h"
#include "php_globals.h"
/*
* php_checkuid
*
* This function has four modes:
*
* 0 - return invalid (0) if file does not exist
* 1 - return valid (1) if file does not exist
* 2 - if file does not exist, check directory
* 3 - only check directory (needed for mkdir)
*/
PHPAPI int php_checkuid(const char *filename, char *fopen_mode, int mode)
{
struct stat sb;
int ret;
long uid=0L, gid=0L, duid=0L, dgid=0L;
char path[MAXPATHLEN];
char *s;
TSRMLS_FETCH();
if (!filename) {
return 0; /* path must be provided */
}
if (fopen_mode) {
if (fopen_mode[0] == 'r') {
mode = CHECKUID_DISALLOW_FILE_NOT_EXISTS;
} else {
mode = CHECKUID_CHECK_FILE_AND_DIR;
}
}
/*
* If given filepath is a URL, allow - safe mode stuff
* related to URL's is checked in individual functions
*/
if (!strncasecmp(filename,"http://", 7) || !strncasecmp(filename,"ftp://", 6)) {
return 1;
}
/* First we see if the file is owned by the same user...
* If that fails, passthrough and check directory...
*/
if (mode != CHECKUID_ALLOW_ONLY_DIR) {
VCWD_REALPATH(filename, path);
ret = VCWD_STAT(path, &sb);
if (ret < 0) {
if (mode == CHECKUID_DISALLOW_FILE_NOT_EXISTS) {
php_error(E_WARNING, "Unable to access %s", filename);
return 0;
} else if (mode == CHECKUID_ALLOW_FILE_NOT_EXISTS)
php_error(E_WARNING, "Unable to access %s", filename);{
return 1;
}
} else {
uid = sb.st_uid;
gid = sb.st_gid;
if (uid == php_getuid()) {
return 1;
} else if (PG(safe_mode_gid) && gid == php_getgid()) {
return 1;
}
}
/* Trim off filename */
if ((s = strrchr(path, DEFAULT_SLASH))) {
if (s == path)
path[1] = '\0';
else
*s = '\0';
}
} else { /* CHECKUID_ALLOW_ONLY_DIR */
s = strrchr(filename, DEFAULT_SLASH);
if (s == filename) {
/* root dir */
path[0] = DEFAULT_SLASH;
path[1] = '\0';
} else if (s) {
*s = '\0';
VCWD_REALPATH(filename, path);
*s = DEFAULT_SLASH;
} else {
VCWD_GETCWD(path, MAXPATHLEN);
}
} /* end CHECKUID_ALLOW_ONLY_DIR */
if (mode != CHECKUID_ALLOW_ONLY_FILE) {
/* check directory */
ret = VCWD_STAT(path, &sb);
if (ret < 0) {
php_error(E_WARNING, "Unable to access %s", filename);
return 0;
}
duid = sb.st_uid;
dgid = sb.st_gid;
if (duid == php_getuid()) {
return 1;
} else if (PG(safe_mode_gid) && dgid == php_getgid()) {
return 1;
} else {
TSRMLS_FETCH();
if (SG(rfc1867_uploaded_files)) {
if (zend_hash_exists(SG(rfc1867_uploaded_files), (char *) filename, strlen(filename)+1)) {
return 1;
}
}
}
}
if (mode == CHECKUID_ALLOW_ONLY_DIR) {
uid = duid;
gid = dgid;
if (s) {
*s = 0;
}
}
if (PG(safe_mode_gid)) {
php_error(E_WARNING, "SAFE MODE Restriction in effect. The script whose uid/gid is %ld/%ld is not allowed to access %s owned by uid/gid %ld/%ld", php_getuid(), php_getgid(), filename, uid, gid);
} else {
php_error(E_WARNING, "SAFE MODE Restriction in effect. The script whose uid is %ld is not allowed to access %s owned by uid %ld", php_getuid(), filename, uid);
}
return 0;
}
PHPAPI char *php_get_current_user()
{
struct passwd *pwd;
struct stat *pstat;
TSRMLS_FETCH();
if (SG(request_info).current_user) {
return SG(request_info).current_user;
}
/* FIXME: I need to have this somehow handled if
USE_SAPI is defined, because cgi will also be
interfaced in USE_SAPI */
pstat = sapi_get_stat(TSRMLS_C);
if (!pstat) {
return empty_string;
}
if ((pwd=getpwuid(pstat->st_uid))==NULL) {
return empty_string;
}
SG(request_info).current_user_length = strlen(pwd->pw_name);
SG(request_info).current_user = estrndup(pwd->pw_name, SG(request_info).current_user_length);
return SG(request_info).current_user;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2002 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include <stdio.h>
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/stat.h>
#include "ext/standard/pageinfo.h"
#include "safe_mode.h"
#include "SAPI.h"
#include "php_globals.h"
/*
* php_checkuid
*
* This function has four modes:
*
* 0 - return invalid (0) if file does not exist
* 1 - return valid (1) if file does not exist
* 2 - if file does not exist, check directory
* 3 - only check directory (needed for mkdir)
*/
PHPAPI int php_checkuid(const char *filename, char *fopen_mode, int mode)
{
struct stat sb;
int ret;
long uid=0L, gid=0L, duid=0L, dgid=0L;
char path[MAXPATHLEN];
char *s;
TSRMLS_FETCH();
if (!filename) {
return 0; /* path must be provided */
}
if (fopen_mode) {
if (fopen_mode[0] == 'r') {
mode = CHECKUID_DISALLOW_FILE_NOT_EXISTS;
} else {
mode = CHECKUID_CHECK_FILE_AND_DIR;
}
}
/*
* If given filepath is a URL, allow - safe mode stuff
* related to URL's is checked in individual functions
*/
if (!strncasecmp(filename,"http://", 7) || !strncasecmp(filename,"ftp://", 6)) {
return 1;
}
/* First we see if the file is owned by the same user...
* If that fails, passthrough and check directory...
*/
if (mode != CHECKUID_ALLOW_ONLY_DIR) {
VCWD_REALPATH(filename, path);
ret = VCWD_STAT(path, &sb);
if (ret < 0) {
if (mode == CHECKUID_DISALLOW_FILE_NOT_EXISTS) {
php_error(E_WARNING, "Unable to access %s", filename);
return 0;
} else if (mode == CHECKUID_ALLOW_FILE_NOT_EXISTS) {
php_error(E_WARNING, "Unable to access %s", filename);
return 1;
}
} else {
uid = sb.st_uid;
gid = sb.st_gid;
if (uid == php_getuid()) {
return 1;
} else if (PG(safe_mode_gid) && gid == php_getgid()) {
return 1;
}
}
/* Trim off filename */
if ((s = strrchr(path, DEFAULT_SLASH))) {
if (s == path)
path[1] = '\0';
else
*s = '\0';
}
} else { /* CHECKUID_ALLOW_ONLY_DIR */
s = strrchr(filename, DEFAULT_SLASH);
if (s == filename) {
/* root dir */
path[0] = DEFAULT_SLASH;
path[1] = '\0';
} else if (s) {
*s = '\0';
VCWD_REALPATH(filename, path);
*s = DEFAULT_SLASH;
} else {
VCWD_GETCWD(path, MAXPATHLEN);
}
} /* end CHECKUID_ALLOW_ONLY_DIR */
if (mode != CHECKUID_ALLOW_ONLY_FILE) {
/* check directory */
ret = VCWD_STAT(path, &sb);
if (ret < 0) {
php_error(E_WARNING, "Unable to access %s", filename);
return 0;
}
duid = sb.st_uid;
dgid = sb.st_gid;
if (duid == php_getuid()) {
return 1;
} else if (PG(safe_mode_gid) && dgid == php_getgid()) {
return 1;
} else {
TSRMLS_FETCH();
if (SG(rfc1867_uploaded_files)) {
if (zend_hash_exists(SG(rfc1867_uploaded_files), (char *) filename, strlen(filename)+1)) {
return 1;
}
}
}
}
if (mode == CHECKUID_ALLOW_ONLY_DIR) {
uid = duid;
gid = dgid;
if (s) {
*s = 0;
}
}
if (PG(safe_mode_gid)) {
php_error(E_WARNING, "SAFE MODE Restriction in effect. The script whose uid/gid is %ld/%ld is not allowed to access %s owned by uid/gid %ld/%ld", php_getuid(), php_getgid(), filename, uid, gid);
} else {
php_error(E_WARNING, "SAFE MODE Restriction in effect. The script whose uid is %ld is not allowed to access %s owned by uid %ld", php_getuid(), filename, uid);
}
return 0;
}
PHPAPI char *php_get_current_user()
{
struct passwd *pwd;
struct stat *pstat;
TSRMLS_FETCH();
if (SG(request_info).current_user) {
return SG(request_info).current_user;
}
/* FIXME: I need to have this somehow handled if
USE_SAPI is defined, because cgi will also be
interfaced in USE_SAPI */
pstat = sapi_get_stat(TSRMLS_C);
if (!pstat) {
return empty_string;
}
if ((pwd=getpwuid(pstat->st_uid))==NULL) {
return empty_string;
}
SG(request_info).current_user_length = strlen(pwd->pw_name);
SG(request_info).current_user = estrndup(pwd->pw_name, SG(request_info).current_user_length);
return SG(request_info).current_user;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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