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814 lines
34 KiB
814 lines
34 KiB
5 years ago
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SRC_NODE_H_
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#define SRC_NODE_H_
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#ifdef _WIN32
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# ifndef BUILDING_NODE_EXTENSION
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# define NODE_EXTERN __declspec(dllexport)
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# else
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# define NODE_EXTERN __declspec(dllimport)
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# endif
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#else
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# define NODE_EXTERN __attribute__((visibility("default")))
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#endif
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#ifdef BUILDING_NODE_EXTENSION
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# undef BUILDING_V8_SHARED
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# undef BUILDING_UV_SHARED
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# define USING_V8_SHARED 1
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# define USING_UV_SHARED 1
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#endif
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// This should be defined in make system.
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// See issue https://github.com/nodejs/node-v0.x-archive/issues/1236
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#if defined(__MINGW32__) || defined(_MSC_VER)
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#ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x0600 // Windows Server 2008
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#endif
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#ifndef NOMINMAX
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# define NOMINMAX
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#endif
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#endif
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#if defined(_MSC_VER)
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#define PATH_MAX MAX_PATH
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#endif
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#ifdef _WIN32
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# define SIGKILL 9
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#endif
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#include "v8.h" // NOLINT(build/include_order)
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#include "v8-platform.h" // NOLINT(build/include_order)
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#include "node_version.h" // NODE_MODULE_VERSION
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#include <memory>
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#define NODE_MAKE_VERSION(major, minor, patch) \
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((major) * 0x1000 + (minor) * 0x100 + (patch))
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#ifdef __clang__
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# define NODE_CLANG_AT_LEAST(major, minor, patch) \
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(NODE_MAKE_VERSION(major, minor, patch) <= \
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NODE_MAKE_VERSION(__clang_major__, __clang_minor__, __clang_patchlevel__))
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#else
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# define NODE_CLANG_AT_LEAST(major, minor, patch) (0)
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#endif
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#ifdef __GNUC__
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# define NODE_GNUC_AT_LEAST(major, minor, patch) \
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(NODE_MAKE_VERSION(major, minor, patch) <= \
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NODE_MAKE_VERSION(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__))
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#else
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# define NODE_GNUC_AT_LEAST(major, minor, patch) (0)
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#endif
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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# define NODE_DEPRECATED(message, declarator) declarator
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#else // NODE_WANT_INTERNALS
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# if NODE_CLANG_AT_LEAST(2, 9, 0) || NODE_GNUC_AT_LEAST(4, 5, 0)
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# define NODE_DEPRECATED(message, declarator) \
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__attribute__((deprecated(message))) declarator
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# elif defined(_MSC_VER)
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# define NODE_DEPRECATED(message, declarator) \
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__declspec(deprecated) declarator
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# else
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# define NODE_DEPRECATED(message, declarator) declarator
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# endif
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#endif
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// Forward-declare libuv loop
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struct uv_loop_s;
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// Forward-declare these functions now to stop MSVS from becoming
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// terminally confused when it's done in node_internals.h
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namespace node {
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namespace tracing {
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class TracingController;
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}
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NODE_EXTERN v8::Local<v8::Value> ErrnoException(v8::Isolate* isolate,
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int errorno,
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const char* syscall = nullptr,
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const char* message = nullptr,
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const char* path = nullptr);
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NODE_EXTERN v8::Local<v8::Value> UVException(v8::Isolate* isolate,
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int errorno,
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const char* syscall = nullptr,
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const char* message = nullptr,
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const char* path = nullptr,
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const char* dest = nullptr);
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NODE_DEPRECATED("Use ErrnoException(isolate, ...)",
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inline v8::Local<v8::Value> ErrnoException(
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int errorno,
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const char* syscall = nullptr,
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const char* message = nullptr,
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const char* path = nullptr) {
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return ErrnoException(v8::Isolate::GetCurrent(),
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errorno,
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syscall,
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message,
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path);
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})
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NODE_DEPRECATED("Use UVException(isolate, ...)",
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inline v8::Local<v8::Value> UVException(int errorno,
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const char* syscall = nullptr,
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const char* message = nullptr,
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const char* path = nullptr) {
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return UVException(v8::Isolate::GetCurrent(),
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errorno,
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syscall,
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message,
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path);
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})
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/*
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* These methods need to be called in a HandleScope.
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*
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* It is preferred that you use the `MakeCallback` overloads taking
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* `async_context` arguments.
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*/
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NODE_DEPRECATED("Use MakeCallback(..., async_context)",
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NODE_EXTERN v8::Local<v8::Value> MakeCallback(
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v8::Isolate* isolate,
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v8::Local<v8::Object> recv,
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const char* method,
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int argc,
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v8::Local<v8::Value>* argv));
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NODE_DEPRECATED("Use MakeCallback(..., async_context)",
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NODE_EXTERN v8::Local<v8::Value> MakeCallback(
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v8::Isolate* isolate,
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v8::Local<v8::Object> recv,
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v8::Local<v8::String> symbol,
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int argc,
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v8::Local<v8::Value>* argv));
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NODE_DEPRECATED("Use MakeCallback(..., async_context)",
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NODE_EXTERN v8::Local<v8::Value> MakeCallback(
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v8::Isolate* isolate,
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v8::Local<v8::Object> recv,
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v8::Local<v8::Function> callback,
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int argc,
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v8::Local<v8::Value>* argv));
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} // namespace node
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#include <cassert>
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#include <cstdint>
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#ifndef NODE_STRINGIFY
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#define NODE_STRINGIFY(n) NODE_STRINGIFY_HELPER(n)
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#define NODE_STRINGIFY_HELPER(n) #n
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#endif
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#ifdef _WIN32
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#if !defined(_SSIZE_T_) && !defined(_SSIZE_T_DEFINED)
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typedef intptr_t ssize_t;
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# define _SSIZE_T_
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# define _SSIZE_T_DEFINED
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#endif
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#else // !_WIN32
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# include <sys/types.h> // size_t, ssize_t
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#endif // _WIN32
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namespace node {
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class IsolateData;
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class Environment;
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// TODO(addaleax): Officially deprecate this and replace it with something
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// better suited for a public embedder API.
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NODE_EXTERN int Start(int argc, char* argv[]);
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// Tear down Node.js while it is running (there are active handles
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// in the loop and / or actively executing JavaScript code).
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NODE_EXTERN int Stop(Environment* env);
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// TODO(addaleax): Officially deprecate this and replace it with something
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// better suited for a public embedder API.
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NODE_EXTERN void Init(int* argc,
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const char** argv,
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int* exec_argc,
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const char*** exec_argv);
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class NodeArrayBufferAllocator;
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// An ArrayBuffer::Allocator class with some Node.js-specific tweaks. If you do
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// not have to use another allocator, using this class is recommended:
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// - It supports Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() with
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// uninitialized memory.
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// - It supports transferring, rather than copying, ArrayBuffers when using
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// MessagePorts.
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class NODE_EXTERN ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
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public:
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// If `always_debug` is true, create an ArrayBuffer::Allocator instance
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// that performs additional integrity checks (e.g. make sure that only memory
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// that was allocated by the it is also freed by it).
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// This can also be set using the --debug-arraybuffer-allocations flag.
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static std::unique_ptr<ArrayBufferAllocator> Create(
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bool always_debug = false);
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private:
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virtual NodeArrayBufferAllocator* GetImpl() = 0;
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friend class IsolateData;
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};
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// Legacy equivalents for ArrayBufferAllocator::Create().
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NODE_EXTERN ArrayBufferAllocator* CreateArrayBufferAllocator();
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NODE_EXTERN void FreeArrayBufferAllocator(ArrayBufferAllocator* allocator);
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class NODE_EXTERN MultiIsolatePlatform : public v8::Platform {
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public:
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~MultiIsolatePlatform() override = default;
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// Returns true if work was dispatched or executed. New tasks that are
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// posted during flushing of the queue are postponed until the next
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// flushing.
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virtual bool FlushForegroundTasks(v8::Isolate* isolate) = 0;
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virtual void DrainTasks(v8::Isolate* isolate) = 0;
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virtual void CancelPendingDelayedTasks(v8::Isolate* isolate) = 0;
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// This needs to be called between the calls to `Isolate::Allocate()` and
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// `Isolate::Initialize()`, so that initialization can already start
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// using the platform.
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// When using `NewIsolate()`, this is taken care of by that function.
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// This function may only be called once per `Isolate`.
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virtual void RegisterIsolate(v8::Isolate* isolate,
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struct uv_loop_s* loop) = 0;
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// This needs to be called right before calling `Isolate::Dispose()`.
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// This function may only be called once per `Isolate`.
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virtual void UnregisterIsolate(v8::Isolate* isolate) = 0;
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// The platform should call the passed function once all state associated
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// with the given isolate has been cleaned up. This can, but does not have to,
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// happen asynchronously.
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virtual void AddIsolateFinishedCallback(v8::Isolate* isolate,
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void (*callback)(void*),
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void* data) = 0;
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};
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// Set up some Node.js-specific defaults for `params`, in particular
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// the ArrayBuffer::Allocator if it is provided, memory limits, and
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// possibly a code event handler.
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NODE_EXTERN void SetIsolateCreateParams(v8::Isolate::CreateParams* params,
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ArrayBufferAllocator* allocator
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= nullptr);
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// Set a number of callbacks for the `isolate`, in particular the Node.js
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// uncaught exception listener.
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NODE_EXTERN void SetIsolateUpForNode(v8::Isolate* isolate);
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// Creates a new isolate with Node.js-specific settings.
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// This is a convenience method equivalent to using SetIsolateCreateParams(),
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// Isolate::Allocate(), MultiIsolatePlatform::RegisterIsolate(),
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// Isolate::Initialize(), and SetIsolateUpForNode().
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NODE_EXTERN v8::Isolate* NewIsolate(ArrayBufferAllocator* allocator,
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struct uv_loop_s* event_loop);
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NODE_EXTERN v8::Isolate* NewIsolate(ArrayBufferAllocator* allocator,
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struct uv_loop_s* event_loop,
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MultiIsolatePlatform* platform);
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// Creates a new context with Node.js-specific tweaks.
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NODE_EXTERN v8::Local<v8::Context> NewContext(
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v8::Isolate* isolate,
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v8::Local<v8::ObjectTemplate> object_template =
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v8::Local<v8::ObjectTemplate>());
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// If `platform` is passed, it will be used to register new Worker instances.
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// It can be `nullptr`, in which case creating new Workers inside of
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// Environments that use this `IsolateData` will not work.
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NODE_EXTERN IsolateData* CreateIsolateData(
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v8::Isolate* isolate,
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struct uv_loop_s* loop,
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MultiIsolatePlatform* platform = nullptr,
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ArrayBufferAllocator* allocator = nullptr);
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NODE_EXTERN void FreeIsolateData(IsolateData* isolate_data);
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// TODO(addaleax): Add an official variant using STL containers, and move
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// per-Environment options parsing here.
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// Returns nullptr when the Environment cannot be created e.g. there are
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// pending JavaScript exceptions.
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NODE_EXTERN Environment* CreateEnvironment(IsolateData* isolate_data,
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v8::Local<v8::Context> context,
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int argc,
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const char* const* argv,
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int exec_argc,
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const char* const* exec_argv);
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NODE_EXTERN void LoadEnvironment(Environment* env);
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NODE_EXTERN void FreeEnvironment(Environment* env);
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// This may return nullptr if context is not associated with a Node instance.
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NODE_EXTERN Environment* GetCurrentEnvironment(v8::Local<v8::Context> context);
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// This returns the MultiIsolatePlatform used in the main thread of Node.js.
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// If NODE_USE_V8_PLATFORM haven't been defined when Node.js was built,
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// it returns nullptr.
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NODE_EXTERN MultiIsolatePlatform* GetMainThreadMultiIsolatePlatform();
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NODE_EXTERN MultiIsolatePlatform* CreatePlatform(
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int thread_pool_size,
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node::tracing::TracingController* tracing_controller);
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MultiIsolatePlatform* InitializeV8Platform(int thread_pool_size);
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NODE_EXTERN void FreePlatform(MultiIsolatePlatform* platform);
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NODE_EXTERN void EmitBeforeExit(Environment* env);
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NODE_EXTERN int EmitExit(Environment* env);
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NODE_EXTERN void RunAtExit(Environment* env);
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// This may return nullptr if the current v8::Context is not associated
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// with a Node instance.
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NODE_EXTERN struct uv_loop_s* GetCurrentEventLoop(v8::Isolate* isolate);
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/* Converts a unixtime to V8 Date */
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NODE_DEPRECATED("Use v8::Date::New() directly",
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inline v8::Local<v8::Value> NODE_UNIXTIME_V8(double time) {
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return v8::Date::New(
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v8::Isolate::GetCurrent()->GetCurrentContext(),
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1000 * time)
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.ToLocalChecked();
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})
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#define NODE_UNIXTIME_V8 node::NODE_UNIXTIME_V8
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NODE_DEPRECATED("Use v8::Date::ValueOf() directly",
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inline double NODE_V8_UNIXTIME(v8::Local<v8::Date> date) {
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return date->ValueOf() / 1000;
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})
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#define NODE_V8_UNIXTIME node::NODE_V8_UNIXTIME
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#define NODE_DEFINE_CONSTANT(target, constant) \
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do { \
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v8::Isolate* isolate = target->GetIsolate(); \
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v8::Local<v8::Context> context = isolate->GetCurrentContext(); \
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v8::Local<v8::String> constant_name = \
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v8::String::NewFromUtf8(isolate, #constant, \
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v8::NewStringType::kInternalized).ToLocalChecked(); \
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v8::Local<v8::Number> constant_value = \
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v8::Number::New(isolate, static_cast<double>(constant)); \
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v8::PropertyAttribute constant_attributes = \
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||
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static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete); \
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(target)->DefineOwnProperty(context, \
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constant_name, \
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constant_value, \
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constant_attributes).Check(); \
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} \
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||
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while (0)
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#define NODE_DEFINE_HIDDEN_CONSTANT(target, constant) \
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do { \
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v8::Isolate* isolate = target->GetIsolate(); \
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||
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v8::Local<v8::Context> context = isolate->GetCurrentContext(); \
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||
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v8::Local<v8::String> constant_name = \
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v8::String::NewFromUtf8(isolate, #constant, \
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||
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v8::NewStringType::kInternalized) \
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.ToLocalChecked(); \
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v8::Local<v8::Number> constant_value = \
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||
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v8::Number::New(isolate, static_cast<double>(constant)); \
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||
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v8::PropertyAttribute constant_attributes = \
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||
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static_cast<v8::PropertyAttribute>(v8::ReadOnly | \
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||
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v8::DontDelete | \
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||
|
v8::DontEnum); \
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||
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(target)->DefineOwnProperty(context, \
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||
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constant_name, \
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||
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constant_value, \
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||
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constant_attributes).Check(); \
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||
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} \
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||
|
while (0)
|
||
|
|
||
|
// Used to be a macro, hence the uppercase name.
|
||
|
inline void NODE_SET_METHOD(v8::Local<v8::Template> recv,
|
||
|
const char* name,
|
||
|
v8::FunctionCallback callback) {
|
||
|
v8::Isolate* isolate = v8::Isolate::GetCurrent();
|
||
|
v8::HandleScope handle_scope(isolate);
|
||
|
v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(isolate,
|
||
|
callback);
|
||
|
v8::Local<v8::String> fn_name = v8::String::NewFromUtf8(isolate, name,
|
||
|
v8::NewStringType::kInternalized).ToLocalChecked();
|
||
|
t->SetClassName(fn_name);
|
||
|
recv->Set(fn_name, t);
|
||
|
}
|
||
|
|
||
|
// Used to be a macro, hence the uppercase name.
|
||
|
inline void NODE_SET_METHOD(v8::Local<v8::Object> recv,
|
||
|
const char* name,
|
||
|
v8::FunctionCallback callback) {
|
||
|
v8::Isolate* isolate = v8::Isolate::GetCurrent();
|
||
|
v8::HandleScope handle_scope(isolate);
|
||
|
v8::Local<v8::Context> context = isolate->GetCurrentContext();
|
||
|
v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(isolate,
|
||
|
callback);
|
||
|
v8::Local<v8::Function> fn = t->GetFunction(context).ToLocalChecked();
|
||
|
v8::Local<v8::String> fn_name = v8::String::NewFromUtf8(isolate, name,
|
||
|
v8::NewStringType::kInternalized).ToLocalChecked();
|
||
|
fn->SetName(fn_name);
|
||
|
recv->Set(context, fn_name, fn).Check();
|
||
|
}
|
||
|
#define NODE_SET_METHOD node::NODE_SET_METHOD
|
||
|
|
||
|
// Used to be a macro, hence the uppercase name.
|
||
|
// Not a template because it only makes sense for FunctionTemplates.
|
||
|
inline void NODE_SET_PROTOTYPE_METHOD(v8::Local<v8::FunctionTemplate> recv,
|
||
|
const char* name,
|
||
|
v8::FunctionCallback callback) {
|
||
|
v8::Isolate* isolate = v8::Isolate::GetCurrent();
|
||
|
v8::HandleScope handle_scope(isolate);
|
||
|
v8::Local<v8::Signature> s = v8::Signature::New(isolate, recv);
|
||
|
v8::Local<v8::FunctionTemplate> t =
|
||
|
v8::FunctionTemplate::New(isolate, callback, v8::Local<v8::Value>(), s);
|
||
|
v8::Local<v8::String> fn_name = v8::String::NewFromUtf8(isolate, name,
|
||
|
v8::NewStringType::kInternalized).ToLocalChecked();
|
||
|
t->SetClassName(fn_name);
|
||
|
recv->PrototypeTemplate()->Set(fn_name, t);
|
||
|
}
|
||
|
#define NODE_SET_PROTOTYPE_METHOD node::NODE_SET_PROTOTYPE_METHOD
|
||
|
|
||
|
// BINARY is a deprecated alias of LATIN1.
|
||
|
enum encoding {ASCII, UTF8, BASE64, UCS2, BINARY, HEX, BUFFER, LATIN1 = BINARY};
|
||
|
|
||
|
NODE_EXTERN enum encoding ParseEncoding(
|
||
|
v8::Isolate* isolate,
|
||
|
v8::Local<v8::Value> encoding_v,
|
||
|
enum encoding default_encoding = LATIN1);
|
||
|
|
||
|
NODE_EXTERN void FatalException(v8::Isolate* isolate,
|
||
|
const v8::TryCatch& try_catch);
|
||
|
|
||
|
NODE_EXTERN v8::Local<v8::Value> Encode(v8::Isolate* isolate,
|
||
|
const char* buf,
|
||
|
size_t len,
|
||
|
enum encoding encoding = LATIN1);
|
||
|
|
||
|
// Warning: This reverses endianness on Big Endian platforms, even though the
|
||
|
// signature using uint16_t implies that it should not.
|
||
|
NODE_EXTERN v8::Local<v8::Value> Encode(v8::Isolate* isolate,
|
||
|
const uint16_t* buf,
|
||
|
size_t len);
|
||
|
|
||
|
// Returns -1 if the handle was not valid for decoding
|
||
|
NODE_EXTERN ssize_t DecodeBytes(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Value>,
|
||
|
enum encoding encoding = LATIN1);
|
||
|
// returns bytes written.
|
||
|
NODE_EXTERN ssize_t DecodeWrite(v8::Isolate* isolate,
|
||
|
char* buf,
|
||
|
size_t buflen,
|
||
|
v8::Local<v8::Value>,
|
||
|
enum encoding encoding = LATIN1);
|
||
|
#ifdef _WIN32
|
||
|
NODE_EXTERN v8::Local<v8::Value> WinapiErrnoException(
|
||
|
v8::Isolate* isolate,
|
||
|
int errorno,
|
||
|
const char* syscall = nullptr,
|
||
|
const char* msg = "",
|
||
|
const char* path = nullptr);
|
||
|
#endif
|
||
|
|
||
|
const char* signo_string(int errorno);
|
||
|
|
||
|
|
||
|
typedef void (*addon_register_func)(
|
||
|
v8::Local<v8::Object> exports,
|
||
|
v8::Local<v8::Value> module,
|
||
|
void* priv);
|
||
|
|
||
|
typedef void (*addon_context_register_func)(
|
||
|
v8::Local<v8::Object> exports,
|
||
|
v8::Local<v8::Value> module,
|
||
|
v8::Local<v8::Context> context,
|
||
|
void* priv);
|
||
|
|
||
|
enum ModuleFlags {
|
||
|
kLinked = 0x02
|
||
|
};
|
||
|
|
||
|
struct node_module {
|
||
|
int nm_version;
|
||
|
unsigned int nm_flags;
|
||
|
void* nm_dso_handle;
|
||
|
const char* nm_filename;
|
||
|
node::addon_register_func nm_register_func;
|
||
|
node::addon_context_register_func nm_context_register_func;
|
||
|
const char* nm_modname;
|
||
|
void* nm_priv;
|
||
|
struct node_module* nm_link;
|
||
|
};
|
||
|
|
||
|
extern "C" NODE_EXTERN void node_module_register(void* mod);
|
||
|
|
||
|
#ifdef _WIN32
|
||
|
# define NODE_MODULE_EXPORT __declspec(dllexport)
|
||
|
#else
|
||
|
# define NODE_MODULE_EXPORT __attribute__((visibility("default")))
|
||
|
#endif
|
||
|
|
||
|
#ifdef NODE_SHARED_MODE
|
||
|
# define NODE_CTOR_PREFIX
|
||
|
#else
|
||
|
# define NODE_CTOR_PREFIX static
|
||
|
#endif
|
||
|
|
||
|
#if defined(_MSC_VER)
|
||
|
#pragma section(".CRT$XCU", read)
|
||
|
#define NODE_C_CTOR(fn) \
|
||
|
NODE_CTOR_PREFIX void __cdecl fn(void); \
|
||
|
__declspec(dllexport, allocate(".CRT$XCU")) \
|
||
|
void (__cdecl*fn ## _)(void) = fn; \
|
||
|
NODE_CTOR_PREFIX void __cdecl fn(void)
|
||
|
#else
|
||
|
#define NODE_C_CTOR(fn) \
|
||
|
NODE_CTOR_PREFIX void fn(void) __attribute__((constructor)); \
|
||
|
NODE_CTOR_PREFIX void fn(void)
|
||
|
#endif
|
||
|
|
||
|
#define NODE_MODULE_X(modname, regfunc, priv, flags) \
|
||
|
extern "C" { \
|
||
|
static node::node_module _module = \
|
||
|
{ \
|
||
|
NODE_MODULE_VERSION, \
|
||
|
flags, \
|
||
|
NULL, /* NOLINT (readability/null_usage) */ \
|
||
|
__FILE__, \
|
||
|
(node::addon_register_func) (regfunc), \
|
||
|
NULL, /* NOLINT (readability/null_usage) */ \
|
||
|
NODE_STRINGIFY(modname), \
|
||
|
priv, \
|
||
|
NULL /* NOLINT (readability/null_usage) */ \
|
||
|
}; \
|
||
|
NODE_C_CTOR(_register_ ## modname) { \
|
||
|
node_module_register(&_module); \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
#define NODE_MODULE_CONTEXT_AWARE_X(modname, regfunc, priv, flags) \
|
||
|
extern "C" { \
|
||
|
static node::node_module _module = \
|
||
|
{ \
|
||
|
NODE_MODULE_VERSION, \
|
||
|
flags, \
|
||
|
NULL, /* NOLINT (readability/null_usage) */ \
|
||
|
__FILE__, \
|
||
|
NULL, /* NOLINT (readability/null_usage) */ \
|
||
|
(node::addon_context_register_func) (regfunc), \
|
||
|
NODE_STRINGIFY(modname), \
|
||
|
priv, \
|
||
|
NULL /* NOLINT (readability/null_usage) */ \
|
||
|
}; \
|
||
|
NODE_C_CTOR(_register_ ## modname) { \
|
||
|
node_module_register(&_module); \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
// Usage: `NODE_MODULE(NODE_GYP_MODULE_NAME, InitializerFunction)`
|
||
|
// If no NODE_MODULE is declared, Node.js looks for the well-known
|
||
|
// symbol `node_register_module_v${NODE_MODULE_VERSION}`.
|
||
|
#define NODE_MODULE(modname, regfunc) \
|
||
|
NODE_MODULE_X(modname, regfunc, NULL, 0) // NOLINT (readability/null_usage)
|
||
|
|
||
|
#define NODE_MODULE_CONTEXT_AWARE(modname, regfunc) \
|
||
|
/* NOLINTNEXTLINE (readability/null_usage) */ \
|
||
|
NODE_MODULE_CONTEXT_AWARE_X(modname, regfunc, NULL, 0)
|
||
|
|
||
|
// Embedders can use this type of binding for statically linked native bindings.
|
||
|
// It is used the same way addon bindings are used, except that linked bindings
|
||
|
// can be accessed through `process._linkedBinding(modname)`.
|
||
|
#define NODE_MODULE_LINKED(modname, regfunc) \
|
||
|
/* NOLINTNEXTLINE (readability/null_usage) */ \
|
||
|
NODE_MODULE_CONTEXT_AWARE_X(modname, regfunc, NULL, \
|
||
|
node::ModuleFlags::kLinked)
|
||
|
|
||
|
/*
|
||
|
* For backward compatibility in add-on modules.
|
||
|
*/
|
||
|
#define NODE_MODULE_DECL /* nothing */
|
||
|
|
||
|
#define NODE_MODULE_INITIALIZER_BASE node_register_module_v
|
||
|
|
||
|
#define NODE_MODULE_INITIALIZER_X(base, version) \
|
||
|
NODE_MODULE_INITIALIZER_X_HELPER(base, version)
|
||
|
|
||
|
#define NODE_MODULE_INITIALIZER_X_HELPER(base, version) base##version
|
||
|
|
||
|
#define NODE_MODULE_INITIALIZER \
|
||
|
NODE_MODULE_INITIALIZER_X(NODE_MODULE_INITIALIZER_BASE, \
|
||
|
NODE_MODULE_VERSION)
|
||
|
|
||
|
#define NODE_MODULE_INIT() \
|
||
|
extern "C" NODE_MODULE_EXPORT void \
|
||
|
NODE_MODULE_INITIALIZER(v8::Local<v8::Object> exports, \
|
||
|
v8::Local<v8::Value> module, \
|
||
|
v8::Local<v8::Context> context); \
|
||
|
NODE_MODULE_CONTEXT_AWARE(NODE_GYP_MODULE_NAME, \
|
||
|
NODE_MODULE_INITIALIZER) \
|
||
|
void NODE_MODULE_INITIALIZER(v8::Local<v8::Object> exports, \
|
||
|
v8::Local<v8::Value> module, \
|
||
|
v8::Local<v8::Context> context)
|
||
|
|
||
|
/* Called after the event loop exits but before the VM is disposed.
|
||
|
* Callbacks are run in reverse order of registration, i.e. newest first.
|
||
|
*/
|
||
|
NODE_EXTERN void AtExit(void (*cb)(void* arg), void* arg = nullptr);
|
||
|
|
||
|
/* Registers a callback with the passed-in Environment instance. The callback
|
||
|
* is called after the event loop exits, but before the VM is disposed.
|
||
|
* Callbacks are run in reverse order of registration, i.e. newest first.
|
||
|
*/
|
||
|
NODE_EXTERN void AtExit(Environment* env,
|
||
|
void (*cb)(void* arg),
|
||
|
void* arg = nullptr);
|
||
|
|
||
|
typedef double async_id;
|
||
|
struct async_context {
|
||
|
::node::async_id async_id;
|
||
|
::node::async_id trigger_async_id;
|
||
|
};
|
||
|
|
||
|
/* This is a lot like node::AtExit, except that the hooks added via this
|
||
|
* function are run before the AtExit ones and will always be registered
|
||
|
* for the current Environment instance.
|
||
|
* These functions are safe to use in an addon supporting multiple
|
||
|
* threads/isolates. */
|
||
|
NODE_EXTERN void AddEnvironmentCleanupHook(v8::Isolate* isolate,
|
||
|
void (*fun)(void* arg),
|
||
|
void* arg);
|
||
|
|
||
|
NODE_EXTERN void RemoveEnvironmentCleanupHook(v8::Isolate* isolate,
|
||
|
void (*fun)(void* arg),
|
||
|
void* arg);
|
||
|
|
||
|
/* Returns the id of the current execution context. If the return value is
|
||
|
* zero then no execution has been set. This will happen if the user handles
|
||
|
* I/O from native code. */
|
||
|
NODE_EXTERN async_id AsyncHooksGetExecutionAsyncId(v8::Isolate* isolate);
|
||
|
|
||
|
/* Return same value as async_hooks.triggerAsyncId(); */
|
||
|
NODE_EXTERN async_id AsyncHooksGetTriggerAsyncId(v8::Isolate* isolate);
|
||
|
|
||
|
/* If the native API doesn't inherit from the helper class then the callbacks
|
||
|
* must be triggered manually. This triggers the init() callback. The return
|
||
|
* value is the async id assigned to the resource.
|
||
|
*
|
||
|
* The `trigger_async_id` parameter should correspond to the resource which is
|
||
|
* creating the new resource, which will usually be the return value of
|
||
|
* `AsyncHooksGetTriggerAsyncId()`. */
|
||
|
NODE_EXTERN async_context EmitAsyncInit(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> resource,
|
||
|
const char* name,
|
||
|
async_id trigger_async_id = -1);
|
||
|
|
||
|
NODE_EXTERN async_context EmitAsyncInit(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> resource,
|
||
|
v8::Local<v8::String> name,
|
||
|
async_id trigger_async_id = -1);
|
||
|
|
||
|
/* Emit the destroy() callback. The overload taking an `Environment*` argument
|
||
|
* should be used when the Isolate’s current Context is not associated with
|
||
|
* a Node.js Environment, or when there is no current Context, for example
|
||
|
* when calling this function during garbage collection. In that case, the
|
||
|
* `Environment*` value should have been acquired previously, e.g. through
|
||
|
* `GetCurrentEnvironment()`. */
|
||
|
NODE_EXTERN void EmitAsyncDestroy(v8::Isolate* isolate,
|
||
|
async_context asyncContext);
|
||
|
NODE_EXTERN void EmitAsyncDestroy(Environment* env,
|
||
|
async_context asyncContext);
|
||
|
|
||
|
class InternalCallbackScope;
|
||
|
|
||
|
/* This class works like `MakeCallback()` in that it sets up a specific
|
||
|
* asyncContext as the current one and informs the async_hooks and domains
|
||
|
* modules that this context is currently active.
|
||
|
*
|
||
|
* `MakeCallback()` is a wrapper around this class as well as
|
||
|
* `Function::Call()`. Either one of these mechanisms needs to be used for
|
||
|
* top-level calls into JavaScript (i.e. without any existing JS stack).
|
||
|
*
|
||
|
* This object should be stack-allocated to ensure that it is contained in a
|
||
|
* valid HandleScope.
|
||
|
*
|
||
|
* Exceptions happening within this scope will be treated like uncaught
|
||
|
* exceptions. If this behaviour is undesirable, a new `v8::TryCatch` scope
|
||
|
* needs to be created inside of this scope.
|
||
|
*/
|
||
|
class NODE_EXTERN CallbackScope {
|
||
|
public:
|
||
|
CallbackScope(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> resource,
|
||
|
async_context asyncContext);
|
||
|
~CallbackScope();
|
||
|
|
||
|
void operator=(const CallbackScope&) = delete;
|
||
|
void operator=(CallbackScope&&) = delete;
|
||
|
CallbackScope(const CallbackScope&) = delete;
|
||
|
CallbackScope(CallbackScope&&) = delete;
|
||
|
|
||
|
private:
|
||
|
InternalCallbackScope* private_;
|
||
|
v8::TryCatch try_catch_;
|
||
|
};
|
||
|
|
||
|
/* An API specific to emit before/after callbacks is unnecessary because
|
||
|
* MakeCallback will automatically call them for you.
|
||
|
*
|
||
|
* These methods may create handles on their own, so run them inside a
|
||
|
* HandleScope.
|
||
|
*
|
||
|
* `asyncId` and `triggerAsyncId` should correspond to the values returned by
|
||
|
* `EmitAsyncInit()` and `AsyncHooksGetTriggerAsyncId()`, respectively, when the
|
||
|
* invoking resource was created. If these values are unknown, 0 can be passed.
|
||
|
* */
|
||
|
NODE_EXTERN
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> recv,
|
||
|
v8::Local<v8::Function> callback,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv,
|
||
|
async_context asyncContext);
|
||
|
NODE_EXTERN
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> recv,
|
||
|
const char* method,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv,
|
||
|
async_context asyncContext);
|
||
|
NODE_EXTERN
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> recv,
|
||
|
v8::Local<v8::String> symbol,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv,
|
||
|
async_context asyncContext);
|
||
|
|
||
|
/* Helper class users can optionally inherit from. If
|
||
|
* `AsyncResource::MakeCallback()` is used, then all four callbacks will be
|
||
|
* called automatically. */
|
||
|
class NODE_EXTERN AsyncResource {
|
||
|
public:
|
||
|
AsyncResource(v8::Isolate* isolate,
|
||
|
v8::Local<v8::Object> resource,
|
||
|
const char* name,
|
||
|
async_id trigger_async_id = -1);
|
||
|
|
||
|
virtual ~AsyncResource();
|
||
|
|
||
|
AsyncResource(const AsyncResource&) = delete;
|
||
|
void operator=(const AsyncResource&) = delete;
|
||
|
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(
|
||
|
v8::Local<v8::Function> callback,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv);
|
||
|
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(
|
||
|
const char* method,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv);
|
||
|
|
||
|
v8::MaybeLocal<v8::Value> MakeCallback(
|
||
|
v8::Local<v8::String> symbol,
|
||
|
int argc,
|
||
|
v8::Local<v8::Value>* argv);
|
||
|
|
||
|
v8::Local<v8::Object> get_resource();
|
||
|
async_id get_async_id() const;
|
||
|
async_id get_trigger_async_id() const;
|
||
|
|
||
|
protected:
|
||
|
class NODE_EXTERN CallbackScope : public node::CallbackScope {
|
||
|
public:
|
||
|
explicit CallbackScope(AsyncResource* res);
|
||
|
};
|
||
|
|
||
|
private:
|
||
|
Environment* env_;
|
||
|
v8::Persistent<v8::Object> resource_;
|
||
|
async_context async_context_;
|
||
|
};
|
||
|
|
||
|
} // namespace node
|
||
|
|
||
|
#endif // SRC_NODE_H_
|