/usr/include/ola/thread/ConsumerThread.h is in libola-dev 0.10.5.nojsmin-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* 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
*
* ConsumerThread.h
* An thread which consumes Callbacks from a queue and runs them.
* Copyright (C) 2011 Simon Newton
*/
#ifndef INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_
#define INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_
#include <ola/Callback.h>
#include <ola/base/Macro.h>
#include <ola/thread/Thread.h>
#include <queue>
namespace ola {
namespace thread {
/**
* A thread which waits on a queue, and when actions (callbacks) become
* available, it pulls them from the queue and executes them.
*/
class ConsumerThread: public ola::thread::Thread {
public :
typedef BaseCallback0<void>* Action;
/**
* @param callback_queue the queue to pull actions from
* @param shutdown a bool which is set to true if this thread is to finish.
* @param mutex the Mutex object which protects the queue and shutdown
* variable.
* @param condition_var the ConditionVariable to wait on. This signals when
* the queue is non-empty, or shutdown changes to true.
* @param options The thread options.
*/
ConsumerThread(std::queue<Action> *callback_queue,
const bool *shutdown,
Mutex *mutex,
ConditionVariable *condition_var,
const Thread::Options& options = Thread::Options())
: Thread(options),
m_callback_queue(callback_queue),
m_shutdown(shutdown),
m_mutex(mutex),
m_condition_var(condition_var) {
}
~ConsumerThread() {}
void *Run();
private:
std::queue<Action> *m_callback_queue;
const bool *m_shutdown;
Mutex *m_mutex;
ConditionVariable *m_condition_var;
void EmptyQueue();
DISALLOW_COPY_AND_ASSIGN(ConsumerThread);
};
} // namespace thread
} // namespace ola
#endif // INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_
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