src: add libuv bindings module

Exports:

* all UV_E* error codes
* a uv_err_name() binding

node.gyp

@@ -114,6 +114,7 @@
         'src/tty_wrap.cc',
         'src/process_wrap.cc',
         'src/udp_wrap.cc',
+        'src/uv.cc',
         # headers to make for a more pleasant IDE experience
         'src/handle_wrap.h',
         'src/node.h',

src/node_extensions.h

@@ -19,7 +19,6 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-
 NODE_EXT_LIST_START
 NODE_EXT_LIST_ITEM(node_buffer)
 #if HAVE_OPENSSL
@@ -33,7 +32,7 @@ NODE_EXT_LIST_ITEM(node_os)
 NODE_EXT_LIST_ITEM(node_smalloc)
 NODE_EXT_LIST_ITEM(node_zlib)
 
-// libuv rewrite
+NODE_EXT_LIST_ITEM(node_uv)
 NODE_EXT_LIST_ITEM(node_timer_wrap)
 NODE_EXT_LIST_ITEM(node_tcp_wrap)
 NODE_EXT_LIST_ITEM(node_udp_wrap)
@@ -45,4 +44,3 @@ NODE_EXT_LIST_ITEM(node_fs_event_wrap)
 NODE_EXT_LIST_ITEM(node_signal_wrap)
 
 NODE_EXT_LIST_END
-

src/uv.cc

@@ -0,0 +1,61 @@
+// 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.h"
+#include "uv.h"
+
+namespace node {
+namespace uv {
+
+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) {
+  v8::HandleScope handle_scope(node_isolate);
+  int err = args[0]->Int32Value();
+  if (err >= 0) return ThrowError("err >= 0");
+  const char* name = uv_err_name(err);
+  args.GetReturnValue().Set(String::New(name));
+}
+
+
+void Initialize(Handle<Object> target) {
+  v8::HandleScope handle_scope(node_isolate);
+  target->Set(String::New("errname"),
+              FunctionTemplate::New(ErrName)->GetFunction());
+#define V(name, _) target->Set(String::New("UV_" # name),                     \
+                               Integer::New(UV_ ## name, node_isolate));
+  UV_ERRNO_MAP(V)
+#undef V
+}
+
+
+}  // namespace uv
+}  // namespace node
+
+NODE_MODULE(node_uv, node::uv::Initialize)