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common
Mutex.cpp
Go to the documentation of this file.
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/*
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* Copyright (c) 2016, NVIDIA CORPORATION. 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
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* 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 NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "
Mutex.h
"
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#include "Error.h"
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namespace
ArgusSamples
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{
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Mutex::Mutex
()
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: m_initialized(false)
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{
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}
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Mutex::~Mutex
()
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{
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shutdown
();
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}
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bool
Mutex::initialize
()
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{
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if
(!
m_initialized
)
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{
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if
(pthread_mutex_init(&
m_mutex
, NULL) != 0)
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ORIGINATE_ERROR(
"Failed to initialize mutex"
);
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m_initialized
=
true
;
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}
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return
true
;
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}
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bool
Mutex::shutdown
()
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{
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if
(
m_initialized
)
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{
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if
(pthread_mutex_destroy(&
m_mutex
) != 0)
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ORIGINATE_ERROR(
"Failed to destroy mutex"
);
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m_initialized
=
false
;
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}
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return
true
;
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}
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bool
Mutex::lock
()
const
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{
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if
(!
m_initialized
)
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ORIGINATE_ERROR(
"Not initialized"
);
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if
(pthread_mutex_lock(&
m_mutex
) != 0)
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ORIGINATE_ERROR(
"Failed to lock mutex"
);
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return
true
;
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}
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bool
Mutex::unlock
()
const
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{
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if
(!
m_initialized
)
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ORIGINATE_ERROR(
"Not initialized"
);
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if
(pthread_mutex_unlock(&
m_mutex
) != 0)
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ORIGINATE_ERROR(
"Failed to unlock mutex"
);
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return
true
;
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}
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};
// namespace ArgusSamples
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