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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_signal_watcher.h"
#include <assert.h>
namespace node {
using namespace v8;
Persistent<FunctionTemplate> SignalWatcher::constructor_template;
static Persistent<String> callback_symbol;
void SignalWatcher::Initialize(Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(SignalWatcher::New);
constructor_template = Persistent<FunctionTemplate>::New(t);
constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
constructor_template->SetClassName(String::NewSymbol("SignalWatcher"));
NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", SignalWatcher::Start);
NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", SignalWatcher::Stop);
target->Set(String::NewSymbol("SignalWatcher"),
constructor_template->GetFunction());
callback_symbol = NODE_PSYMBOL("callback");
}
void SignalWatcher::Callback(EV_P_ ev_signal *watcher, int revents) {
SignalWatcher *w = static_cast<SignalWatcher*>(watcher->data);
assert(watcher == &w->watcher_);
assert(revents == EV_SIGNAL);
HandleScope scope;
Local<Value> callback_v = w->handle_->Get(callback_symbol);
if (!callback_v->IsFunction()) {
w->Stop();
return;
}
Local<Function> callback = Local<Function>::Cast(callback_v);
MakeCallback(w->handle_, callback, 0, NULL);
}
Handle<Value> SignalWatcher::New(const Arguments& args) {
if (!args.IsConstructCall()) {
return FromConstructorTemplate(constructor_template, args);
}
HandleScope scope;
if (args.Length() != 1 || !args[0]->IsInt32()) {
return ThrowException(String::New("Bad arguments"));
}
int sig = args[0]->Int32Value();
SignalWatcher *w = new SignalWatcher(sig);
w->Wrap(args.Holder());
return args.This();
}
Handle<Value> SignalWatcher::Start(const Arguments& args) {
HandleScope scope;
SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.Holder());
w->Start();
return Undefined();
}
void SignalWatcher::Start () {
if (!watcher_.active) {
ev_signal_start(EV_DEFAULT_UC_ &watcher_);
ev_unref(EV_DEFAULT_UC);
Ref();
}
}
Handle<Value> SignalWatcher::Stop(const Arguments& args) {
HandleScope scope;
SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.Holder());
w->Stop();
return Undefined();
}
void SignalWatcher::Stop () {
if (watcher_.active) {
ev_ref(EV_DEFAULT_UC);
ev_signal_stop(EV_DEFAULT_UC_ &watcher_);
Unref();
}
}
} // namespace node
NODE_MODULE(node_signal_watcher, node::SignalWatcher::Initialize)
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