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nodejs bindings for Informix
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events.cxx
1 #include "events.h"
2 
3 #if !NODE_VERSION_AT_LEAST(0, 5, 0)
4 v8::Persistent<v8::String> nodejs_db::EventEmitter::syEmit;
5 #endif
6 
7 nodejs_db::EventEmitter::EventEmitter() : node::ObjectWrap() {
8 }
9 
10 void nodejs_db::EventEmitter::Init() {
11 #if !NODE_VERSION_AT_LEAST(0, 5, 0)
12  syEmit = NODE_PERSISTENT_SYMBOL("emit");
13 #endif
14 }
15 
16 bool nodejs_db::EventEmitter::Emit(const char* event, int argc, v8::Handle<v8::Value> argv[]) {
17  v8::HandleScope scope;
18 
19  int nArgc = argc + 1;
20  v8::Handle<v8::Value>* nArgv = new v8::Handle<v8::Value>[nArgc];
21  if (nArgv == NULL) {
22  return false;
23  }
24 
25  nArgv[0] = v8::String::New(event);
26  for (int i=0; i < argc; i++) {
27  nArgv[i + 1] = argv[i];
28  }
29 
30 #if NODE_VERSION_AT_LEAST(0, 5, 0)
31  node::MakeCallback(this->handle_, "emit", nArgc, nArgv);
32 #else
33  v8::Local<v8::Value> emit_v = this->handle_->Get(syEmit);
34  if (!emit_v->IsFunction()) {
35  return false;
36  }
37  v8::Local<v8::Function> emit = v8::Local<v8::Function>::Cast(emit_v);
38 
39  v8::TryCatch try_catch;
40  emit->Call(this->handle_, nArgc, nArgv);
41 #endif
42 
43  delete [] nArgv;
44 
45 #if !NODE_VERSION_AT_LEAST(0, 5, 0)
46  if (try_catch.HasCaught()) {
47  node::FatalException(try_catch);
48  }
49 #endif
50 
51  return true;
52 }