joyent/node

// 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 "uv.h"
#include "node.h"
#include "env.h"
#include "env-inl.h"

namespace node {
namespace uv {

using v8::Context;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::Handle;
using v8::HandleScope;
using v8::Integer;
using v8::Object;
using v8::String;
using v8::Value;


void ErrName(const FunctionCallbackInfo<Value>& args) {
  Environment* env = Environment::GetCurrent(args.GetIsolate());
  HandleScope scope(env->isolate());
  int err = args[0]->Int32Value();
  if (err >= 0)
    return env->ThrowError("err >= 0");
  const char* name = uv_err_name(err);
  args.GetReturnValue().Set(OneByteString(env->isolate(), name));
}


void Initialize(Handle<Object> target,
                Handle<Value> unused,
                Handle<Context> context) {
  Environment* env = Environment::GetCurrent(context);
  target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "errname"),
              FunctionTemplate::New(env->isolate(), ErrName)->GetFunction());
#define V(name, _)                                                            \
  target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "UV_" # name),            \
              Integer::New(env->isolate(), UV_ ## name));
  UV_ERRNO_MAP(V)
#undef V
}


}  // namespace uv
}  // namespace node

NODE_MODULE_CONTEXT_AWARE_BUILTIN(uv, node::uv::Initialize)