WebSocket++
0.8.2
C++ websocket client/server library
websocketpp
concurrency
none.hpp
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/*
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* Copyright (c) 2014, Peter Thorson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the WebSocket++ Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#
ifndef
WEBSOCKETPP_CONCURRENCY_NONE_HPP
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#
define
WEBSOCKETPP_CONCURRENCY_NONE_HPP
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namespace
websocketpp
{
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/// Concurrency handling support
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namespace
concurrency
{
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/// Implementation for no-op locking primitives
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namespace
none_impl
{
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/// A fake mutex implementation that does nothing
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class
fake_mutex
{
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public
:
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fake_mutex() {}
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~fake_mutex() {}
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};
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/// A fake lock guard implementation that does nothing
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class
fake_lock_guard
{
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public
:
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explicit
fake_lock_guard(
fake_mutex
) {}
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~fake_lock_guard() {}
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};
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}
// namespace none_impl
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/// Stub concurrency policy that implements the interface using no-ops.
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/**
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* This policy documents the concurrency policy interface using no-ops. It can
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* be used as a reference or base for building a new concurrency policy. It can
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* also be used as is to disable all locking for endpoints used in purely single
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* threaded programs.
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*/
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class
none
{
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public
:
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/// The type of a mutex primitive
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/**
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* std::mutex is an example.
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*/
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typedef
none_impl
::
fake_mutex
mutex_type
;
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/// The type of a scoped/RAII lock primitive.
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/**
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* The scoped lock constructor should take a mutex_type as a parameter,
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* acquire that lock, and release it in its destructor. std::lock_guard is
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* an example.
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*/
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typedef
none_impl
::
fake_lock_guard
scoped_lock_type
;
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};
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}
// namespace concurrency
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}
// namespace websocketpp
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#
endif
// WEBSOCKETPP_CONCURRENCY_ASYNC_HPP
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