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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_ASYNC_HOOKS_WRAPPER_H_
#define V8_ASYNC_HOOKS_WRAPPER_H_
#include <stack>
#include "include/v8.h"
#include "src/objects.h"
namespace v8 {
typedef double async_id_t;
struct AsyncContext {
async_id_t execution_async_id;
async_id_t trigger_async_id;
};
class AsyncHooksWrap {
public:
explicit AsyncHooksWrap(Isolate* isolate) {
enabled_ = false;
isolate_ = isolate;
}
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) {
isolate_ = isolate;
AsyncContext ctx;
ctx.execution_async_id = 1;
ctx.trigger_async_id = 0;
asyncContexts.push(ctx);
current_async_id = 1;
Initialize();
}
~AsyncHooks() { Deinitialize(); }
async_id_t GetExecutionAsyncId() const;
async_id_t GetTriggerAsyncId() const;
Local<Object> CreateHook(const v8::FunctionCallbackInfo<v8::Value>& args);
Persistent<FunctionTemplate> async_hook_ctor;
private:
std::vector<AsyncHooksWrap*> async_wraps_;
Isolate* isolate_;
Persistent<ObjectTemplate> async_hooks_templ;
Persistent<Private> async_id_smb;
Persistent<Private> trigger_id_smb;
void Initialize();
void Deinitialize();
static void ShellPromiseHook(PromiseHookType type, Local<Promise> promise,
Local<Value> parent);
static void PromiseHookDispatch(PromiseHookType type, Local<Promise> promise,
Local<Value> parent, AsyncHooksWrap* wrap,
AsyncHooks* hooks);
std::stack<AsyncContext> asyncContexts;
async_id_t current_async_id;
};
} // namespace v8
#endif // V8_ASYNC_HOOKS_WRAPPER_H_
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