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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/shared_ptr.hpp>
#ifndef CLIENT_WAKEUP_H
#define CLIENT_WAKEUP_H
namespace client {
// Wakeup starts in a blocking posistion
class Wakeup {
public:
typedef boost::shared_ptr<Wakeup> shared_ptr;
Wakeup() :
sleeping(true)
{ }
// Signal all of the waiters to start
void start()
{
boost::mutex::scoped_lock scopedWakeup(sleeper_mutex);
sleeping= false;
sleep_threshhold.notify_all();
}
// reset after the start of the signal so that we can reuse the wakeup
void reset()
{
boost::mutex::scoped_lock scopedWakeup(sleeper_mutex);
sleeping= true;
}
void wait()
{
sleeper_mutex.lock();
while (sleeping)
{
sleep_threshhold.wait(sleeper_mutex);
}
sleeper_mutex.unlock();
}
private:
bool sleeping;
boost::mutex sleeper_mutex;
boost::condition_variable_any sleep_threshhold;
};
} // namespace client
#endif /* CLIENT_WAKEUP_H */
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