text: // Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
  #ifndef SRC_NODE_H_
  #define SRC_NODE_H_
  
  #include <ev.h>
  #include <eio.h>
  #include <v8.h>
  #include <evcom.h>
  #include <sys/types.h> /* struct stat */
  #include <sys/stat.h>
  
  #include <node_object_wrap.h>
  
  namespace node {
  
  #define NODE_PSYMBOL(s) Persistent<String>::New(String::NewSymbol(s))
  
  /* Converts a unixtime to V8 Date */
  #define NODE_UNIXTIME_V8(t) v8::Date::New(1000*static_cast<double>(t))
  #define NODE_V8_UNIXTIME(v) (static_cast<double>((v)->IntegerValue())/1000.0);
  
  #define NODE_DEFINE_CONSTANT(target, constant)                            \
    (target)->Set(v8::String::NewSymbol(#constant),                         \
                  v8::Integer::New(constant))
  
  #define NODE_SET_METHOD(obj, name, callback)                              \
    obj->Set(v8::String::NewSymbol(name),                                   \
             v8::FunctionTemplate::New(callback)->GetFunction())
  
  #define NODE_SET_PROTOTYPE_METHOD(templ, name, callback)                  \
  do {                                                                      \
    v8::Local<v8::Signature> __callback##_SIG = v8::Signature::New(templ);  \
    v8::Local<v8::FunctionTemplate> __callback##_TEM =                      \
      FunctionTemplate::New(callback, v8::Handle<v8::Value>(),              \
                            __callback##_SIG);                              \
    templ->PrototypeTemplate()->Set(v8::String::NewSymbol(name),            \
                                    __callback##_TEM);                      \
  } while (0)
  
  enum encoding {ASCII, UTF8, BINARY};
  enum encoding ParseEncoding(v8::Handle<v8::Value> encoding_v,
                              enum encoding _default = BINARY);
  void FatalException(v8::TryCatch &try_catch);
  
  v8::Local<v8::Value> Encode(const void *buf, size_t len,
                              enum encoding encoding = BINARY);
  
  // Returns -1 if the handle was not valid for decoding
  ssize_t DecodeBytes(v8::Handle<v8::Value>,
                      enum encoding encoding = BINARY);
  
  // returns bytes written.
  ssize_t DecodeWrite(char *buf,
                      size_t buflen,
                      v8::Handle<v8::Value>,
                      enum encoding encoding = BINARY);
  
  v8::Local<v8::Object> BuildStatsObject(struct stat * s);
  
  
  static inline v8::Persistent<v8::Function>* cb_persist(
      const v8::Local<v8::Value> &v) {
    v8::Persistent<v8::Function> *fn = new v8::Persistent<v8::Function>();
    *fn = v8::Persistent<v8::Function>::New(v8::Local<v8::Function>::Cast(v));
    return fn;
  }
  
  static inline v8::Persistent<v8::Function>* cb_unwrap(void *data) {
    v8::Persistent<v8::Function> *cb =
      reinterpret_cast<v8::Persistent<v8::Function>*>(data);
    assert((*cb)->IsFunction());
    return cb;
  }
  
  static inline void cb_destroy(v8::Persistent<v8::Function> * cb) {
    cb->Dispose();
    delete cb;
  }
  
  }  // namespace node
  #endif  // SRC_NODE_H_
  