[+] Initial commit

venv8/include/plaidml/base/base_cpp.h

@@ -0,0 +1,68 @@
+// Copyright 2018 Intel Corporation.
+//
+// This is the Vertex.AI common C++ interface, which provides a higher level object
+// oriented wrapper on top of the Vertex.AI common C API.
+
+#pragma once
+
+#include <exception>
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "plaidml/base/base.h"
+
+namespace vertexai {
+
+class vai_exception : public std::runtime_error {
+ public:
+  vai_exception(vai_status status, const std::string& what) : std::runtime_error(what), status_(status) {}
+  vai_status status() { return status_; }
+
+  template <typename T>
+  static void check_and_throw(const T& good) {
+    if (good) {
+      return;
+    }
+    vai_status status = vai_last_status();
+    std::string err = vai_last_status_str();
+    vai_clear_status();
+    throw vai_exception{status, err.c_str()};
+  }
+
+  static std::exception_ptr current() noexcept {
+    try {
+      vai_status status = vai_last_status();
+      std::string err = vai_last_status_str();
+      vai_clear_status();
+      return std::make_exception_ptr(vai_exception{status, err.c_str()});
+    } catch (...) {
+      return std::current_exception();
+    }
+  }
+
+ private:
+  vai_status status_;
+};
+
+class ctx final {
+ public:
+  ctx() : ctx_{vai_alloc_ctx()} {
+    if (!ctx_) {
+      throw std::bad_alloc();
+    }
+  }
+
+  explicit ctx(std::unique_ptr<vai_ctx> ctx) : ctx_{std::move(ctx)} {
+    if (!ctx_) {
+      throw std::bad_alloc();
+    }
+  }
+
+  vai_ctx* get_ctx() const { return ctx_.get(); }
+
+ private:
+  std::unique_ptr<vai_ctx> ctx_;
+};
+
+}  // namespace vertexai