/usr/include/ola/thread/Mutex.h is in libola-dev 0.10.3.nojsmin-2+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | /*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Mutex.h
* A thread object.
* Copyright (C) 2010 Simon Newton
*/
#ifndef INCLUDE_OLA_THREAD_MUTEX_H_
#define INCLUDE_OLA_THREAD_MUTEX_H_
#include <pthread.h>
#include <ola/Clock.h>
#include <ola/base/Macro.h>
namespace ola {
namespace thread {
/**
* A Mutex object
*/
class Mutex {
public:
friend class ConditionVariable;
Mutex();
~Mutex();
void Lock();
bool TryLock();
void Unlock();
private:
pthread_mutex_t m_mutex;
DISALLOW_COPY_AND_ASSIGN(Mutex);
};
/**
* A convenience class to lock mutexes. The mutex is unlocked when this object
* is destroyed.
*/
class MutexLocker {
public:
explicit MutexLocker(Mutex *mutex);
~MutexLocker();
void Release();
private:
Mutex *m_mutex;
bool m_requires_unlock;
DISALLOW_COPY_AND_ASSIGN(MutexLocker);
};
/**
* A condition variable
*/
class ConditionVariable {
public:
ConditionVariable();
~ConditionVariable();
void Wait(Mutex *mutex);
bool TimedWait(Mutex *mutex, const ola::TimeStamp &wake_up_time);
void Signal();
void Broadcast();
private:
pthread_cond_t m_condition;
DISALLOW_COPY_AND_ASSIGN(ConditionVariable);
};
} // namespace thread
} // namespace ola
#endif // INCLUDE_OLA_THREAD_MUTEX_H_
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