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78 lines
2.7 KiB
78 lines
2.7 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef HANDLE_WRAP_H_
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#define HANDLE_WRAP_H_
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#include "ngx-queue.h"
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namespace node {
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// Rules:
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//
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// - Do not throw from handle methods. Set errno.
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//
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// - MakeCallback may only be made directly off the event loop.
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// That is there can be no JavaScript stack frames underneith it.
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// (Is there anyway to assert that?)
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//
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// - No use of v8::WeakReferenceCallback. The close callback signifies that
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// we're done with a handle - external resources can be freed.
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//
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// - Reusable?
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//
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// - The uv_close_cb is used to free the c++ object. The close callback
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// is not made into javascript land.
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//
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// - uv_ref, uv_unref counts are managed at this layer to avoid needless
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// js/c++ boundary crossing. At the javascript layer that should all be
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// taken care of.
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class HandleWrap {
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public:
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static void Initialize(v8::Handle<v8::Object> target);
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static v8::Handle<v8::Value> Close(const v8::Arguments& args);
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static v8::Handle<v8::Value> Ref(const v8::Arguments& args);
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static v8::Handle<v8::Value> Unref(const v8::Arguments& args);
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protected:
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HandleWrap(v8::Handle<v8::Object> object, uv_handle_t* handle);
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virtual ~HandleWrap();
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virtual void SetHandle(uv_handle_t* h);
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v8::Persistent<v8::Object> object_;
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private:
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friend v8::Handle<v8::Value> GetActiveHandles(const v8::Arguments&);
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static void OnClose(uv_handle_t* handle);
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ngx_queue_t handle_wrap_queue_;
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// Using double underscore due to handle_ member in tcp_wrap. Probably
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// tcp_wrap should rename it's member to 'handle'.
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uv_handle_t* handle__;
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bool unref_;
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};
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} // namespace node
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#endif // HANDLE_WRAP_H_
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