blocxx
src
blocxx
MutexLock.hpp
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/*******************************************************************************
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* Copyright (C) 2005, Vintela, Inc. All rights reserved.
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* Copyright (C) 2006, Novell, Inc. 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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*
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* * Redistributions of source code must retain the above copyright notice,
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* 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
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* Vintela, Inc.,
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* nor Novell, Inc.,
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* nor the names of its contributors or employees may be used to
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* endorse or promote products derived from this software without
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* 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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#ifndef BLOCXX_MUTEXLOCK_HPP_INCLUDE_GUARD_
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#define BLOCXX_MUTEXLOCK_HPP_INCLUDE_GUARD_
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#include "blocxx/BLOCXX_config.h"
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#include "
blocxx/Mutex.hpp
"
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#include <cassert>
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namespace
BLOCXX_NAMESPACE
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{
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class
BLOCXX_COMMON_API
MutexLock
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{
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public
:
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explicit
MutexLock
(
Mutex
& mutex,
bool
initially_locked=
true
)
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:
m_mutex
(&mutex),
m_locked
(false)
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{
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if
(initially_locked)
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{
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lock
();
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}
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}
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~MutexLock
()
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{
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try
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{
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if
(
m_locked
)
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{
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release
();
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}
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}
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catch
(...)
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{
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// don't let exceptions escape
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}
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}
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void
lock
()
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{
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assert(
m_locked
==
false
);
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m_mutex
->acquire();
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m_locked
=
true
;
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}
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void
release
()
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{
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assert(
m_locked
==
true
);
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m_mutex
->release();
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m_locked
=
false
;
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}
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MutexLock
(
const
MutexLock
& arg)
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:
m_mutex
(arg.
m_mutex
),
m_locked
(arg.
m_locked
)
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{
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arg.
m_locked
=
false
;
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}
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bool
isLocked
()
const
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{
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return
m_locked
;
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}
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private
:
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Mutex
*
m_mutex
;
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mutable
bool
m_locked
;
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friend
class
Condition
;
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};
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}
// end namespace BLOCXX_NAMESPACE
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#endif
Mutex.hpp
BLOCXX_NAMESPACE::Mutex
Definition
Mutex.hpp:48
BLOCXX_NAMESPACE::MutexLock::m_locked
bool m_locked
Definition
MutexLock.hpp:97
BLOCXX_NAMESPACE::MutexLock::Condition
friend class Condition
Definition
MutexLock.hpp:98
BLOCXX_NAMESPACE::MutexLock::lock
void lock()
Definition
MutexLock.hpp:74
BLOCXX_NAMESPACE::MutexLock::MutexLock
MutexLock(Mutex &mutex, bool initially_locked=true)
Definition
MutexLock.hpp:52
BLOCXX_NAMESPACE::MutexLock::~MutexLock
~MutexLock()
Definition
MutexLock.hpp:60
BLOCXX_NAMESPACE::MutexLock::m_mutex
Mutex * m_mutex
Definition
MutexLock.hpp:96
BLOCXX_NAMESPACE::MutexLock::release
void release()
Definition
MutexLock.hpp:80
BLOCXX_NAMESPACE::MutexLock::isLocked
bool isLocked() const
Definition
MutexLock.hpp:91
BLOCXX_NAMESPACE::MutexLock::MutexLock
MutexLock(const MutexLock &arg)
Definition
MutexLock.hpp:86
BLOCXX_NAMESPACE
Taken from RFC 1321.
Definition
AppenderLogger.cpp:48
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