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82 lines
2.3 KiB
82 lines
2.3 KiB
#ifndef SRC_ASYNC_WRAP_INL_H_
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#define SRC_ASYNC_WRAP_INL_H_
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#include "async-wrap.h"
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#include "base-object.h"
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#include "base-object-inl.h"
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#include "env.h"
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#include "env-inl.h"
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#include "node_internals.h"
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#include "util.h"
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#include "util-inl.h"
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#include "v8.h"
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namespace node {
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inline AsyncWrap::AsyncWrap(Environment* env,
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v8::Handle<v8::Object> object,
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ProviderType provider,
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AsyncWrap* parent)
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: BaseObject(env, object), bits_(static_cast<uint32_t>(provider) << 1) {
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// Only set wrapper class id if object will be Wrap'd.
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if (object->InternalFieldCount() > 0)
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// Shift provider value over to prevent id collision.
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persistent().SetWrapperClassId(NODE_ASYNC_ID_OFFSET + provider);
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// Check user controlled flag to see if the init callback should run.
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if (!env->using_asyncwrap())
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return;
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// If callback hooks have not been enabled, and there is no parent, return.
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if (!env->async_wrap_callbacks_enabled() && parent == nullptr)
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return;
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// If callback hooks have not been enabled and parent has no queue, return.
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if (!env->async_wrap_callbacks_enabled() && !parent->has_async_queue())
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return;
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v8::HandleScope scope(env->isolate());
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v8::TryCatch try_catch;
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v8::Local<v8::Value> n = v8::Int32::New(env->isolate(), provider);
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env->async_hooks_init_function()->Call(object, 1, &n);
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if (try_catch.HasCaught())
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FatalError("node::AsyncWrap::AsyncWrap", "init hook threw");
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bits_ |= 1; // has_async_queue() is true now.
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}
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inline bool AsyncWrap::has_async_queue() const {
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return static_cast<bool>(bits_ & 1);
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}
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inline AsyncWrap::ProviderType AsyncWrap::provider_type() const {
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return static_cast<ProviderType>(bits_ >> 1);
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}
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inline v8::Handle<v8::Value> AsyncWrap::MakeCallback(
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const v8::Handle<v8::String> symbol,
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int argc,
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v8::Handle<v8::Value>* argv) {
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v8::Local<v8::Value> cb_v = object()->Get(symbol);
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CHECK(cb_v->IsFunction());
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return MakeCallback(cb_v.As<v8::Function>(), argc, argv);
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}
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inline v8::Handle<v8::Value> AsyncWrap::MakeCallback(
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uint32_t index,
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int argc,
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v8::Handle<v8::Value>* argv) {
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v8::Local<v8::Value> cb_v = object()->Get(index);
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CHECK(cb_v->IsFunction());
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return MakeCallback(cb_v.As<v8::Function>(), argc, argv);
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}
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} // namespace node
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#endif // SRC_ASYNC_WRAP_INL_H_
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