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