101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
/*
|
|
* synergy -- mouse and keyboard sharing utility
|
|
* Copyright (C) 2004 Chris Schoeneman, Nick Bolton, Sorin Sbarnea
|
|
*
|
|
* This package is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* found in the file COPYING that should have accompanied this file.
|
|
*
|
|
* This package 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "CSimpleEventQueueBuffer.h"
|
|
#include "CStopwatch.h"
|
|
#include "CArch.h"
|
|
|
|
class CEventQueueTimer { };
|
|
|
|
//
|
|
// CSimpleEventQueueBuffer
|
|
//
|
|
|
|
CSimpleEventQueueBuffer::CSimpleEventQueueBuffer()
|
|
{
|
|
m_queueMutex = ARCH->newMutex();
|
|
m_queueReadyCond = ARCH->newCondVar();
|
|
m_queueReady = false;
|
|
}
|
|
|
|
CSimpleEventQueueBuffer::~CSimpleEventQueueBuffer()
|
|
{
|
|
ARCH->closeCondVar(m_queueReadyCond);
|
|
ARCH->closeMutex(m_queueMutex);
|
|
}
|
|
|
|
void
|
|
CSimpleEventQueueBuffer::waitForEvent(double timeout)
|
|
{
|
|
CArchMutexLock lock(m_queueMutex);
|
|
CStopwatch timer(true);
|
|
while (!m_queueReady) {
|
|
double timeLeft = timeout;
|
|
if (timeLeft >= 0.0) {
|
|
timeLeft -= timer.getTime();
|
|
if (timeLeft < 0.0) {
|
|
return;
|
|
}
|
|
}
|
|
ARCH->waitCondVar(m_queueReadyCond, m_queueMutex, timeLeft);
|
|
}
|
|
}
|
|
|
|
IEventQueueBuffer::Type
|
|
CSimpleEventQueueBuffer::getEvent(CEvent&, UInt32& dataID)
|
|
{
|
|
CArchMutexLock lock(m_queueMutex);
|
|
if (!m_queueReady) {
|
|
return kNone;
|
|
}
|
|
dataID = m_queue.back();
|
|
m_queue.pop_back();
|
|
m_queueReady = !m_queue.empty();
|
|
return kUser;
|
|
}
|
|
|
|
bool
|
|
CSimpleEventQueueBuffer::addEvent(UInt32 dataID)
|
|
{
|
|
CArchMutexLock lock(m_queueMutex);
|
|
m_queue.push_front(dataID);
|
|
if (!m_queueReady) {
|
|
m_queueReady = true;
|
|
ARCH->broadcastCondVar(m_queueReadyCond);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
CSimpleEventQueueBuffer::isEmpty() const
|
|
{
|
|
CArchMutexLock lock(m_queueMutex);
|
|
return !m_queueReady;
|
|
}
|
|
|
|
CEventQueueTimer*
|
|
CSimpleEventQueueBuffer::newTimer(double, bool) const
|
|
{
|
|
return new CEventQueueTimer;
|
|
}
|
|
|
|
void
|
|
CSimpleEventQueueBuffer::deleteTimer(CEventQueueTimer* timer) const
|
|
{
|
|
delete timer;
|
|
}
|