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// Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
#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) {
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
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