runtime: move name hasing to common/hash

runtime/src/main/cpp/Names.cpp

@@ -1,54 +0,0 @@
-#include <cassert>
-
-#include "Names.h"
-
-#include "City.h"
-#include "Sha1.h"
-
-namespace {
-
-void Printable(const uint8_t* data, uint32_t data_length, char* hex) {
-  static const char* hex_digits = "0123456789ABCDEF";
-  int i = 0;
-  for(int i = 0; i < data_length; ++i) {
-    *hex++ = hex_digits[(*data >> 4) & 0xf];
-    *hex++ = hex_digits[(*data++) & 0xf];
-  }
-}
-
-} // namespace
-
-extern "C" {
-
-// Make local hash out of arbitrary data.
-void MakeLocalHash(const void* data, uint32_t size, LocalHash* hash) {
-  *hash = CityHash64(data, size);
-}
-
-// Make global hash out of arbitrary data.
-void MakeGlobalHash(const void* data, uint32_t size, GlobalHash* hash) {
-  SHA1_CTX ctx;
-  SHA1Init(&ctx);
-  SHA1Update(&ctx, reinterpret_cast<const unsigned char *>(data), size);
-  SHA1Final(&hash->bits[0], &ctx);
-}
-
-// Make printable C string out of local hash.
-void PrintableLocalHash(const LocalHash* hash, char* buffer, uint32_t size) {
-  if (size < sizeof(*hash) * 2) {
-    assert(false);
-    return;
-  }
-  Printable(reinterpret_cast<const uint8_t*>(&hash), sizeof(*hash), buffer);
-}
-
-// Make printable C string out of global hash.
-void PrintableGlobalHash(const GlobalHash* hash, char* buffer, uint32_t size) {
-  if (size < sizeof(*hash) * 2) {
-    assert(false);
-    return;
-  }
-  Printable(hash->bits, sizeof(*hash), buffer);
-}
-
-} // extern "C"

runtime/src/main/cpp/Names.h

@@ -1,43 +0,0 @@
-#ifndef RUNTIME_NAMES_H
-#define RUNTIME_NAMES_H
-
-#include <stdint.h>
-
-// All names in system are stored as hashes (or maybe, for debug builds,
-// as pointers to uniqued C strings containing names?).
-// There are two types of hashes:
-//  - local hash, must be unique per class/scope (CityHash64 is being used)
-//  - global hash, must be unique globally (SHA1 is being used)
-// Generic guideline is that global hash is being used in global persistent
-// context, while local hashes are more local in scope.
-// Local hash.
-typedef uint64_t LocalHash;
-// Hash of field name.
-typedef LocalHash FieldNameHash;
-// Hash of open method name.
-typedef LocalHash MethodNameHash;
-// Global hash.
-typedef struct {
-  uint8_t bits[20];
-} GlobalHash;
-// Hash of function name.
-typedef GlobalHash FunctionNameHash;
-// Hash of class name.
-typedef GlobalHash ClassNameHash;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-// Make local hash out of arbitrary data.
-void MakeLocalHash(const void* data, uint32_t size, LocalHash* hash);
-// Make global hash out of arbitrary data.
-void MakeGlobalHash(const void* data, uint32_t size, GlobalHash* hash);
-// Make printable C string out of local hash.
-void PrintableLocalHash(const LocalHash* hash, char* buffer, uint32_t size);
-// Make printable C string out of global hash.
-void PrintableGlobalHash(const GlobalHash* hash, char* buffer, uint32_t size);
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // RUNTIME_NAMES_H