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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_ASYNC_WRAP_INL_H_
#define SRC_ASYNC_WRAP_INL_H_
#include "async-wrap.h"
#include "env.h"
#include "env-inl.h"
#include "util.h"
#include "util-inl.h"
#include "v8.h"
#include <assert.h>
namespace node {
inline AsyncWrap::AsyncWrap(Environment* env, v8::Handle<v8::Object> object)
: object_(env->isolate(), object),
env_(env),
async_flags_(NO_OPTIONS) {
assert(!object.IsEmpty());
if (!env->has_async_listeners())
return;
// TODO(trevnorris): Do we really need to TryCatch this call?
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
v8::Local<v8::Value> val = object.As<v8::Value>();
env->async_listener_run_function()->Call(env->process_object(), 1, &val);
if (!try_catch.HasCaught())
async_flags_ |= ASYNC_LISTENERS;
}
inline AsyncWrap::~AsyncWrap() {
assert(persistent().IsEmpty());
}
template<typename TYPE>
inline void AsyncWrap::AddMethods(v8::Handle<v8::FunctionTemplate> t) {
NODE_SET_PROTOTYPE_METHOD(t,
"addAsyncListener",
AddAsyncListener<TYPE>);
NODE_SET_PROTOTYPE_METHOD(t,
"removeAsyncListener",
RemoveAsyncListener<TYPE>);
}
inline uint32_t AsyncWrap::async_flags() const {
return async_flags_;
}
inline void AsyncWrap::set_flag(unsigned int flag) {
async_flags_ |= flag;
}
inline void AsyncWrap::remove_flag(unsigned int flag) {
async_flags_ &= ~flag;
}
inline bool AsyncWrap::has_async_queue() {
return async_flags() & ASYNC_LISTENERS;
}
inline Environment* AsyncWrap::env() const {
return env_;
}
inline v8::Local<v8::Object> AsyncWrap::object() {
return PersistentToLocal(env()->isolate(), persistent());
}
inline v8::Persistent<v8::Object>& AsyncWrap::persistent() {
return object_;
}
inline v8::Handle<v8::Value> AsyncWrap::MakeCallback(
const v8::Handle<v8::Function> cb,
int argc,
v8::Handle<v8::Value>* argv) {
assert(env()->context() == env()->isolate()->GetCurrentContext());
v8::Local<v8::Object> context = object();
v8::Local<v8::Object> process = env()->process_object();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
if (has_async_queue()) {
v8::Local<v8::Value> val = context.As<v8::Value>();
env()->async_listener_load_function()->Call(process, 1, &val);
if (try_catch.HasCaught())
return v8::Undefined(env()->isolate());
}
v8::Local<v8::Value> ret = cb->Call(context, argc, argv);
if (try_catch.HasCaught()) {
return Undefined(env()->isolate());
}
if (has_async_queue()) {
v8::Local<v8::Value> val = context.As<v8::Value>();
env()->async_listener_unload_function()->Call(process, 1, &val);
}
Environment::TickInfo* tick_info = env()->tick_info();
if (tick_info->in_tick()) {
return ret;
}
if (tick_info->length() == 0) {
tick_info->set_index(0);
return ret;
}
tick_info->set_in_tick(true);
// TODO(trevnorris): Consider passing "context" to _tickCallback so it
// can then be passed as the first argument to the nextTick callback.
// That should greatly help needing to create closures.
env()->tick_callback_function()->Call(process, 0, NULL);
tick_info->set_in_tick(false);
if (try_catch.HasCaught()) {
tick_info->set_last_threw(true);
return Undefined(env()->isolate());
}
return ret;
}
inline v8::Handle<v8::Value> AsyncWrap::MakeCallback(
const v8::Handle<v8::String> symbol,
int argc,
v8::Handle<v8::Value>* argv) {
v8::Local<v8::Value> cb_v = object()->Get(symbol);
v8::Local<v8::Function> cb = cb_v.As<v8::Function>();
assert(cb->IsFunction());
return MakeCallback(cb, argc, argv);
}
inline v8::Handle<v8::Value> AsyncWrap::MakeCallback(
uint32_t index,
int argc,
v8::Handle<v8::Value>* argv) {
v8::Local<v8::Value> cb_v = object()->Get(index);
v8::Local<v8::Function> cb = cb_v.As<v8::Function>();
assert(cb->IsFunction());
return MakeCallback(cb, argc, argv);
}
template <typename TYPE>
inline void AsyncWrap::AddAsyncListener(
const v8::FunctionCallbackInfo<v8::Value>& args) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
v8::HandleScope handle_scope(args.GetIsolate());
v8::Local<v8::Object> handle = args.This();
v8::Local<v8::Value> listener = args[0];
assert(listener->IsObject());
assert(handle->InternalFieldCount() > 0);
env->async_listener_push_function()->Call(handle, 1, &listener);
TYPE* wrap = static_cast<TYPE*>(
handle->GetAlignedPointerFromInternalField(0));
assert(wrap != NULL);
wrap->set_flag(ASYNC_LISTENERS);
}
template <typename TYPE>
inline void AsyncWrap::RemoveAsyncListener(
const v8::FunctionCallbackInfo<v8::Value>& args) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
v8::HandleScope handle_scope(args.GetIsolate());
v8::Local<v8::Object> handle = args.This();
v8::Local<v8::Value> listener = args[0];
assert(listener->IsObject());
assert(handle->InternalFieldCount() > 0);
v8::Local<v8::Value> ret =
env->async_listener_strip_function()->Call(handle, 1, &listener);
if (ret->IsFalse()) {
TYPE* wrap = static_cast<TYPE*>(
handle->GetAlignedPointerFromInternalField(0));
assert(wrap != NULL);
wrap->remove_flag(ASYNC_LISTENERS);
}
}
} // namespace node
#endif // SRC_ASYNC_WRAP_INL_H_
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