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120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "node_signal_watcher.h"
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#include <assert.h>
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namespace node {
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using namespace v8;
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Persistent<FunctionTemplate> SignalWatcher::constructor_template;
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static Persistent<String> callback_symbol;
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void SignalWatcher::Initialize(Handle<Object> target) {
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HandleScope scope;
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Local<FunctionTemplate> t = FunctionTemplate::New(SignalWatcher::New);
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constructor_template = Persistent<FunctionTemplate>::New(t);
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constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
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constructor_template->SetClassName(String::NewSymbol("SignalWatcher"));
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NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", SignalWatcher::Start);
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NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", SignalWatcher::Stop);
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target->Set(String::NewSymbol("SignalWatcher"),
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constructor_template->GetFunction());
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callback_symbol = NODE_PSYMBOL("callback");
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}
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void SignalWatcher::Callback(EV_P_ ev_signal *watcher, int revents) {
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SignalWatcher *w = static_cast<SignalWatcher*>(watcher->data);
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assert(watcher == &w->watcher_);
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assert(revents == EV_SIGNAL);
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HandleScope scope;
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Local<Value> callback_v = w->handle_->Get(callback_symbol);
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if (!callback_v->IsFunction()) {
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w->Stop();
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return;
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}
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Local<Function> callback = Local<Function>::Cast(callback_v);
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MakeCallback(w->handle_, callback, 0, NULL);
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}
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Handle<Value> SignalWatcher::New(const Arguments& args) {
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if (!args.IsConstructCall()) {
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return FromConstructorTemplate(constructor_template, args);
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}
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HandleScope scope;
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if (args.Length() != 1 || !args[0]->IsInt32()) {
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return ThrowException(String::New("Bad arguments"));
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}
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int sig = args[0]->Int32Value();
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SignalWatcher *w = new SignalWatcher(sig);
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w->Wrap(args.Holder());
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return args.This();
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}
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Handle<Value> SignalWatcher::Start(const Arguments& args) {
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HandleScope scope;
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SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.Holder());
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w->Start();
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return Undefined();
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}
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void SignalWatcher::Start () {
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if (!watcher_.active) {
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ev_signal_start(EV_DEFAULT_UC_ &watcher_);
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ev_unref(EV_DEFAULT_UC);
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Ref();
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}
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}
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Handle<Value> SignalWatcher::Stop(const Arguments& args) {
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HandleScope scope;
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SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.Holder());
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w->Stop();
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return Undefined();
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}
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void SignalWatcher::Stop () {
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if (watcher_.active) {
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ev_ref(EV_DEFAULT_UC);
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ev_signal_stop(EV_DEFAULT_UC_ &watcher_);
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Unref();
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}
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}
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} // namespace node
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NODE_MODULE(node_signal_watcher, node::SignalWatcher::Initialize)
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