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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_D8_ASYNC_HOOKS_WRAPPER_H_
#define V8_D8_ASYNC_HOOKS_WRAPPER_H_
#include <stack>
#include <vector>
#include "include/v8-function-callback.h"
#include "include/v8-local-handle.h"
#include "include/v8-promise.h"
#include "src/base/platform/mutex.h"
namespace v8 {
class Function;
class Isolate;
class ObjectTemplate;
class Value;
using async_id_t = double;
struct AsyncContext {
async_id_t execution_async_id;
async_id_t trigger_async_id;
};
class AsyncHooksWrap {
public:
explicit AsyncHooksWrap(Isolate* isolate)
: isolate_(isolate), enabled_(false) {}
void Enable();
void Disable();
bool IsEnabled() const { return enabled_; }
inline v8::Local<v8::Function> init_function() const;
inline void set_init_function(v8::Local<v8::Function> value);
inline v8::Local<v8::Function> before_function() const;
inline void set_before_function(v8::Local<v8::Function> value);
inline v8::Local<v8::Function> after_function() const;
inline void set_after_function(v8::Local<v8::Function> value);
inline v8::Local<v8::Function> promiseResolve_function() const;
inline void set_promiseResolve_function(v8::Local<v8::Function> value);
private:
Isolate* isolate_;
Persistent<v8::Function> init_function_;
Persistent<v8::Function> before_function_;
Persistent<v8::Function> after_function_;
Persistent<v8::Function> promiseResolve_function_;
bool enabled_;
};
class AsyncHooks {
public:
explicit AsyncHooks(Isolate* isolate);
~AsyncHooks();
async_id_t GetExecutionAsyncId() const;
async_id_t GetTriggerAsyncId() const;
Local<Object> CreateHook(const v8::FunctionCallbackInfo<v8::Value>& info);
Persistent<FunctionTemplate> async_hook_ctor;
private:
std::vector<std::shared_ptr<AsyncHooksWrap>> async_wraps_;
v8::Isolate* v8_isolate_;
Persistent<ObjectTemplate> async_hooks_templ;
Persistent<Private> async_id_symbol;
Persistent<Private> trigger_id_symbol;
static void ShellPromiseHook(PromiseHookType type, Local<Promise> promise,
Local<Value> parent);
static void PromiseHookDispatch(PromiseHookType type, Local<Promise> promise,
Local<Value> parent,
const AsyncHooksWrap& wrap,
AsyncHooks* hooks);
std::stack<AsyncContext> asyncContexts;
async_id_t current_async_id;
// We might end up in an invalid state after skipping steps due to
// terminations.
bool skip_after_termination_ = false;
};
} // namespace v8
#endif // V8_D8_ASYNC_HOOKS_WRAPPER_H_
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