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104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
// Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
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#include <node_events.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <arpa/inet.h> /* inet_ntop */
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#include <netinet/in.h> /* sockaddr_in, sockaddr_in6 */
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#include <node.h>
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#include <ev.h>
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#include <v8.h>
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namespace node {
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using namespace v8;
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Persistent<FunctionTemplate> EventEmitter::constructor_template;
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static Persistent<String> events_symbol;
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void EventEmitter::Initialize(Local<FunctionTemplate> ctemplate) {
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HandleScope scope;
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constructor_template = Persistent<FunctionTemplate>::New(ctemplate);
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Local<FunctionTemplate> __emit = FunctionTemplate::New(Emit);
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constructor_template->PrototypeTemplate()->Set(String::NewSymbol("emit"),
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__emit);
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constructor_template->SetClassName(String::NewSymbol("EventEmitter"));
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events_symbol = NODE_PSYMBOL("_events");
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// All other prototype methods are defined in events.js
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}
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static bool ReallyEmit(Handle<Object> self,
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Handle<String> event,
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int argc,
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Handle<Value> argv[]) {
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HandleScope scope;
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Local<Value> events_v = self->Get(events_symbol);
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if (!events_v->IsObject()) return false;
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Local<Object> events = events_v->ToObject();
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Local<Value> listeners_v = events->Get(event);
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if (!listeners_v->IsArray()) return false;
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Local<Array> listeners = Local<Array>::Cast(listeners_v);
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for (unsigned int i = 0; i < listeners->Length(); i++) {
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HandleScope scope;
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Local<Value> listener_v = listeners->Get(Integer::New(i));
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if (!listener_v->IsFunction()) continue;
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Local<Function> listener = Local<Function>::Cast(listener_v);
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TryCatch try_catch;
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listener->Call(self, argc, argv);
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if (try_catch.HasCaught()) {
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FatalException(try_catch);
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return false;
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}
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}
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return true;
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}
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Handle<Value> EventEmitter::Emit(const Arguments& args) {
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HandleScope scope;
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if (args.Length() == 0) {
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return ThrowException(Exception::TypeError(
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String::New("Must give event name.")));
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}
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Local<String> event = args[0]->ToString();
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int argc = args.Length() - 1;
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Local<Value> argv[argc];
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for (int i = 0; i < argc; i++) {
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argv[i] = args[i+1];
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}
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bool r = ReallyEmit(args.Holder(), event, argc, argv);
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return scope.Close(r ? True() : False());
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}
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bool EventEmitter::Emit(Handle<String> event, int argc, Handle<Value> argv[]) {
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HandleScope scope;
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return ReallyEmit(handle_, event, argc, argv);
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}
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} // namespace node
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