104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
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/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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https://github.com/ETLCPP/etl
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https://www.etlcpp.com
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Copyright(c) 2018 John Wellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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#ifndef ETL_MUTEX_INCLUDED
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#define ETL_MUTEX_INCLUDED
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#include "platform.h"
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#if defined(ETL_TARGET_OS_CMSIS_OS2)
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#include "mutex/mutex_cmsis_os2.h"
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#define ETL_HAS_MUTEX 1
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#elif defined(ETL_TARGET_OS_FREERTOS)
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#include "mutex/mutex_freertos.h"
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#define ETL_HAS_MUTEX 1
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#elif ETL_USING_STL && ETL_USING_CPP11
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#include "mutex/mutex_std.h"
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#define ETL_HAS_MUTEX 1
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#elif defined(ETL_COMPILER_ARM5) || defined(ETL_COMPILER_ARM6) || defined(ETL_COMPILER_ARM7) || defined(ETL_COMPILER_ARM8)
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#include "mutex/mutex_arm.h"
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#define ETL_HAS_MUTEX 1
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#elif defined(ETL_COMPILER_GCC)
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#include "mutex/mutex_gcc_sync.h"
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#define ETL_HAS_MUTEX 1
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#elif defined(ETL_COMPILER_CLANG)
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#include "mutex/mutex_clang_sync.h"
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#define ETL_HAS_MUTEX 1
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#else
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#define ETL_HAS_MUTEX 0
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#endif
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namespace etl
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{
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namespace traits
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{
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static ETL_CONSTANT bool has_mutex = (ETL_HAS_MUTEX == 1);
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}
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//***************************************************************************
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/// lock_guard
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/// A mutex wrapper that provides an RAII mechanism for owning a mutex for
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/// the duration of a scoped block.
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//***************************************************************************
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template <typename TMutex>
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class lock_guard
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{
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public:
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typedef TMutex mutex_type;
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//*****************************************************
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/// Constructor
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/// Locks the mutex.
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//*****************************************************
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explicit lock_guard(mutex_type& m_)
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: m(m_)
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{
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m.lock();
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}
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//*****************************************************
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/// Destructor
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//*****************************************************
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~lock_guard()
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{
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m.unlock();
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}
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private:
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// Deleted.
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lock_guard(const lock_guard&) ETL_DELETE;
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mutex_type& m;
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};
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}
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#endif
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