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116 lines
3.6 KiB
116 lines
3.6 KiB
#include "async-wrap.h"
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#include "async-wrap-inl.h"
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#include "env.h"
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#include "env-inl.h"
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#include "handle_wrap.h"
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#include "util.h"
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#include "util-inl.h"
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#include <stdint.h>
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namespace node {
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using v8::Context;
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using v8::FunctionCallbackInfo;
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using v8::FunctionTemplate;
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using v8::HandleScope;
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using v8::Integer;
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using v8::Local;
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using v8::Object;
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using v8::Value;
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const uint32_t kOnTimeout = 0;
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class TimerWrap : public HandleWrap {
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public:
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static void Initialize(Local<Object> target,
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Local<Value> unused,
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Local<Context> context) {
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Environment* env = Environment::GetCurrent(context);
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Local<FunctionTemplate> constructor = env->NewFunctionTemplate(New);
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constructor->InstanceTemplate()->SetInternalFieldCount(1);
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constructor->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "Timer"));
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constructor->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "kOnTimeout"),
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Integer::New(env->isolate(), kOnTimeout));
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env->SetTemplateMethod(constructor, "now", Now);
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env->SetProtoMethod(constructor, "close", HandleWrap::Close);
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env->SetProtoMethod(constructor, "ref", HandleWrap::Ref);
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env->SetProtoMethod(constructor, "unref", HandleWrap::Unref);
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env->SetProtoMethod(constructor, "hasRef", HandleWrap::HasRef);
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env->SetProtoMethod(constructor, "start", Start);
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env->SetProtoMethod(constructor, "stop", Stop);
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target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "Timer"),
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constructor->GetFunction());
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}
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size_t self_size() const override { return sizeof(*this); }
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private:
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static void New(const FunctionCallbackInfo<Value>& args) {
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// This constructor should not be exposed to public javascript.
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// Therefore we assert that we are not trying to call this as a
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// normal function.
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CHECK(args.IsConstructCall());
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Environment* env = Environment::GetCurrent(args);
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new TimerWrap(env, args.This());
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}
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TimerWrap(Environment* env, Local<Object> object)
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: HandleWrap(env,
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object,
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reinterpret_cast<uv_handle_t*>(&handle_),
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AsyncWrap::PROVIDER_TIMERWRAP) {
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int r = uv_timer_init(env->event_loop(), &handle_);
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CHECK_EQ(r, 0);
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}
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static void Start(const FunctionCallbackInfo<Value>& args) {
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TimerWrap* wrap = Unwrap<TimerWrap>(args.Holder());
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CHECK(HandleWrap::IsAlive(wrap));
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int64_t timeout = args[0]->IntegerValue();
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int err = uv_timer_start(&wrap->handle_, OnTimeout, timeout, 0);
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args.GetReturnValue().Set(err);
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}
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static void Stop(const FunctionCallbackInfo<Value>& args) {
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TimerWrap* wrap = Unwrap<TimerWrap>(args.Holder());
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CHECK(HandleWrap::IsAlive(wrap));
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int err = uv_timer_stop(&wrap->handle_);
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args.GetReturnValue().Set(err);
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}
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static void OnTimeout(uv_timer_t* handle) {
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TimerWrap* wrap = static_cast<TimerWrap*>(handle->data);
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Environment* env = wrap->env();
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HandleScope handle_scope(env->isolate());
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Context::Scope context_scope(env->context());
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wrap->MakeCallback(kOnTimeout, 0, nullptr);
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}
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static void Now(const FunctionCallbackInfo<Value>& args) {
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Environment* env = Environment::GetCurrent(args);
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uv_update_time(env->event_loop());
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uint64_t now = uv_now(env->event_loop());
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CHECK(now >= env->timer_base());
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now -= env->timer_base();
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if (now <= 0xfffffff)
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args.GetReturnValue().Set(static_cast<uint32_t>(now));
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else
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args.GetReturnValue().Set(static_cast<double>(now));
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}
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uv_timer_t handle_;
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};
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} // namespace node
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NODE_MODULE_CONTEXT_AWARE_BUILTIN(timer_wrap, node::TimerWrap::Initialize)
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