--- /dev/null
+// 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_io_watcher.h>
+
+#include <node.h>
+#include <v8.h>
+
+#include <assert.h>
+
+namespace node {
+
+using namespace v8;
+
+Persistent<FunctionTemplate> IOWatcher::constructor_template;
+Persistent<String> callback_symbol;
+
+
+void IOWatcher::Initialize(Handle<Object> target) {
+ HandleScope scope;
+
+ Local<FunctionTemplate> t = FunctionTemplate::New(IOWatcher::New);
+ constructor_template = Persistent<FunctionTemplate>::New(t);
+ constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
+ constructor_template->SetClassName(String::NewSymbol("IOWatcher"));
+
+ NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", IOWatcher::Start);
+ NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", IOWatcher::Stop);
+ NODE_SET_PROTOTYPE_METHOD(constructor_template, "set", IOWatcher::Set);
+
+ target->Set(String::NewSymbol("IOWatcher"), constructor_template->GetFunction());
+
+ callback_symbol = NODE_PSYMBOL("callback");
+}
+
+
+void IOWatcher::Callback(EV_P_ ev_io *w, int revents) {
+ IOWatcher *io = static_cast<IOWatcher*>(w->data);
+ assert(w == &io->watcher_);
+ HandleScope scope;
+
+ Local<Value> callback_v = io->handle_->Get(callback_symbol);
+ if (!callback_v->IsFunction()) {
+ io->Stop();
+ return;
+ }
+
+ Local<Function> callback = Local<Function>::Cast(callback_v);
+
+ TryCatch try_catch;
+
+ Local<Value> argv[2];
+ argv[0] = Local<Value>::New(revents & EV_READ ? True() : False());
+ argv[1] = Local<Value>::New(revents & EV_WRITE ? True() : False());
+
+ callback->Call(io->handle_, 2, argv);
+
+ if (try_catch.HasCaught()) {
+ FatalException(try_catch);
+ }
+}
+
+
+//
+// var io = new process.IOWatcher();
+// process.callback = function (readable, writable) { ... };
+// io.set(fd, true, false);
+// io.start();
+//
+Handle<Value> IOWatcher::New(const Arguments& args) {
+ if (!args.IsConstructCall()) {
+ return FromConstructorTemplate(constructor_template, args);
+ }
+
+ HandleScope scope;
+ IOWatcher *s = new IOWatcher();
+ s->Wrap(args.This());
+ return args.This();
+}
+
+
+Handle<Value> IOWatcher::Start(const Arguments& args) {
+ HandleScope scope;
+ IOWatcher *io = ObjectWrap::Unwrap<IOWatcher>(args.Holder());
+ io->Start();
+ return Undefined();
+}
+
+
+Handle<Value> IOWatcher::Stop(const Arguments& args) {
+ HandleScope scope;
+ IOWatcher *io = ObjectWrap::Unwrap<IOWatcher>(args.Holder());
+ io->Stop();
+ return Undefined();
+}
+
+
+void IOWatcher::Start() {
+ if (!ev_is_active(&watcher_)) {
+ ev_io_start(EV_DEFAULT_UC_ &watcher_);
+ Ref();
+ }
+}
+
+
+void IOWatcher::Stop() {
+ if (ev_is_active(&watcher_)) {
+ ev_io_stop(EV_DEFAULT_UC_ &watcher_);
+ Unref();
+ }
+}
+
+
+Handle<Value> IOWatcher::Set(const Arguments& args) {
+ HandleScope scope;
+
+ IOWatcher *io = ObjectWrap::Unwrap<IOWatcher>(args.Holder());
+
+ if (!args[0]->IsInt32()) {
+ return ThrowException(Exception::TypeError(
+ String::New("First arg should be a file descriptor.")));
+ }
+
+ int fd = args[0]->Int32Value();
+
+ if (!args[1]->IsBoolean()) {
+ return ThrowException(Exception::TypeError(
+ String::New("Second arg should boolean (readable).")));
+ }
+
+ int events = 0;
+
+ if (args[1]->IsTrue()) events |= EV_READ;
+
+ if (!args[2]->IsBoolean()) {
+ return ThrowException(Exception::TypeError(
+ String::New("Third arg should boolean (writable).")));
+ }
+
+ if (args[2]->IsTrue()) events |= EV_WRITE;
+
+ assert(!io->watcher_.active);
+ ev_io_set(&io->watcher_, fd, events);
+
+ return Undefined();
+}
+
+
+
+} // namespace node
--- /dev/null
+// 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.
+
+#ifndef NODE_IO_H_
+#define NODE_IO_H_
+
+#include <node_object_wrap.h>
+#include <uv-private/ev.h>
+
+namespace node {
+
+class IOWatcher : ObjectWrap {
+ public:
+ static void Initialize(v8::Handle<v8::Object> target);
+
+ protected:
+ static v8::Persistent<v8::FunctionTemplate> constructor_template;
+
+ IOWatcher() : ObjectWrap() {
+ ev_init(&watcher_, IOWatcher::Callback);
+ watcher_.data = this;
+ }
+
+ ~IOWatcher() {
+ ev_io_stop(EV_DEFAULT_UC_ &watcher_);
+ assert(!ev_is_active(&watcher_));
+ assert(!ev_is_pending(&watcher_));
+ }
+
+ static v8::Handle<v8::Value> New(const v8::Arguments& args);
+ static v8::Handle<v8::Value> Start(const v8::Arguments& args);
+ static v8::Handle<v8::Value> Stop(const v8::Arguments& args);
+ static v8::Handle<v8::Value> Set(const v8::Arguments& args);
+
+ private:
+ static void Callback(EV_P_ ev_io *watcher, int revents);
+
+ void Start();
+ void Stop();
+
+ ev_io watcher_;
+};
+
+} // namespace node
+#endif // NODE_IO_H_
+
projects / platform / upstream / nodejs.git / commitdiff