2 * Copyright (c) 2014, Peter Thorson. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 * * Neither the name of the WebSocket++ Project nor the
12 * names of its contributors may be used to endorse or promote products
13 * derived from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef WEBSOCKETPP_CONCURRENCY_NONE_HPP
29 #define WEBSOCKETPP_CONCURRENCY_NONE_HPP
31 namespace websocketpp {
33 /// Concurrency handling support
34 namespace concurrency {
36 /// Implementation for no-op locking primitives
38 /// A fake mutex implementation that does nothing
45 /// A fake lock guard implementation that does nothing
46 class fake_lock_guard {
48 explicit fake_lock_guard(fake_mutex) {}
51 } // namespace none_impl
53 /// Stub concurrency policy that implements the interface using no-ops.
55 * This policy documents the concurrency policy interface using no-ops. It can
56 * be used as a reference or base for building a new concurrency policy. It can
57 * also be used as is to disable all locking for endpoints used in purely single
62 /// The type of a mutex primitive
64 * std::mutex is an example.
66 typedef none_impl::fake_mutex mutex_type;
68 /// The type of a scoped/RAII lock primitive.
70 * The scoped lock constructor should take a mutex_type as a parameter,
71 * acquire that lock, and release it in its destructor. std::lock_guard is
74 typedef none_impl::fake_lock_guard scoped_lock_type;
77 } // namespace concurrency
78 } // namespace websocketpp
80 #endif // WEBSOCKETPP_CONCURRENCY_ASYNC_HPP