node/src/node_idle_watcher.cc at master · deanet/node · GitHub

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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.

#include <node_idle_watcher.h>

#include <node.h>

#include <v8.h>

#include <assert.h>

namespace node {

using namespace v8;

Persistent<FunctionTemplate> IdleWatcher::constructor_template;

static Persistent<String> callback_symbol;

void IdleWatcher::Initialize(Handle<Object> target) {

HandleScope scope;

Local<FunctionTemplate> t = FunctionTemplate::New(IdleWatcher::New);

constructor_template = Persistent<FunctionTemplate>::New(t);

constructor_template->InstanceTemplate()->SetInternalFieldCount(1);

constructor_template->SetClassName(String::NewSymbol("IdleWatcher"));

NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", IdleWatcher::Start);

NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", IdleWatcher::Stop);

NODE_SET_PROTOTYPE_METHOD(constructor_template, "setPriority",

IdleWatcher::SetPriority);

target->Set(String::NewSymbol("IdleWatcher"), constructor_template->GetFunction());

callback_symbol = NODE_PSYMBOL("callback");

}

Handle<Value> IdleWatcher::SetPriority(const Arguments& args) {

IdleWatcher *idle = ObjectWrap::Unwrap<IdleWatcher>(args.Holder());

HandleScope scope;

int priority = args[0]->Int32Value();

ev_set_priority(&idle->watcher_, priority);

return Undefined();

}

void IdleWatcher::Callback(EV_P_ ev_idle *w, int revents) {

IdleWatcher *idle = static_cast<IdleWatcher*>(w->data);

assert(w == &idle->watcher_);

assert(revents == EV_IDLE);

HandleScope scope;

Local<Value> callback_v = idle->handle_->Get(callback_symbol);

if (!callback_v->IsFunction()) {

idle->Stop();

return;

}

Local<Function> callback = Local<Function>::Cast(callback_v);

TryCatch try_catch;

callback->Call(idle->handle_, 0, NULL);

if (try_catch.HasCaught()) {

FatalException(try_catch);

}

// var idle = new process.IdleWatcher();

// idle.callback = function () { /* ... */ };

// idle.start();

Handle<Value> IdleWatcher::New(const Arguments& args) {

if (!args.IsConstructCall()) {

return FromConstructorTemplate(constructor_template, args);

}

HandleScope scope;

IdleWatcher *s = new IdleWatcher();

s->Wrap(args.This());

return args.This();

}

Handle<Value> IdleWatcher::Start(const Arguments& args) {

HandleScope scope;

IdleWatcher *idle = ObjectWrap::Unwrap<IdleWatcher>(args.Holder());

idle->Start();

return Undefined();

}

void IdleWatcher::Start () {

if (!watcher_.active) {

ev_idle_start(EV_DEFAULT_UC_ &watcher_);

Ref();

}

Handle<Value> IdleWatcher::Stop(const Arguments& args) {

HandleScope scope;

IdleWatcher *idle = ObjectWrap::Unwrap<IdleWatcher>(args.Holder());

idle->Stop();

return Undefined();

}

void IdleWatcher::Stop () {

if (watcher_.active) {

ev_idle_stop(EV_DEFAULT_UC_ &watcher_);

Unref();

}

} // namespace node

node/src/node_idle_watcher.cc at master · deanet/node · GitHub

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