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/*************************************************************************
* *
* Open Dynamics Engine, Copyright (C) 2001-2003 Russell L. Smith. *
* All rights reserved. Email: russ@q12.org Web: www.q12.org *
* *
* Threading fake synchronization objects file. *
* Copyright (C) 2011-2019 Oleh Derevenko. All rights reserved. *
* e-mail: odar@eleks.com (change all "a" to "e") *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of EITHER: *
* (1) 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. The text of the GNU Lesser *
* General Public License is included with this library in the *
* file LICENSE.TXT. *
* (2) The BSD-style license that is included with this library in *
* the file LICENSE-BSD.TXT. *
* *
* 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 files *
* LICENSE.TXT and LICENSE-BSD.TXT for more details. *
* *
*************************************************************************/
/*
* Self-wakeup implementation for built-in threading support provider.
* Fake mutex implementation for built-in threading support provider.
*
* The classes have been moved into a separate header as they are to be used
* in both WIN and POSIX implementations.
*/
#ifndef _ODE_THREADING_FAKE_SYNC_H_
#define _ODE_THREADING_FAKE_SYNC_H_
#include <ode/odeconfig.h>
#include <ode/error.h>
/************************************************************************/
/* dxSelfWakeup class definition */
/************************************************************************/
class dxSelfWakeup
{
public:
dxSelfWakeup():
m_wakeup_state(false),
m_state_is_permanent(false)
{
}
bool InitializeObject() { return true; }
public:
void ResetWakeup() { m_wakeup_state = false; m_state_is_permanent = false; }
void WakeupAThread() { dIASSERT(!m_state_is_permanent); m_wakeup_state = true; } // Wakeup should not be used after permanent signal
void WakeupAllThreads() { m_wakeup_state = true; m_state_is_permanent = true; }
bool WaitWakeup(const dThreadedWaitTime *timeout_time_ptr);
private:
bool m_wakeup_state;
bool m_state_is_permanent;
};
bool dxSelfWakeup::WaitWakeup(const dThreadedWaitTime *timeout_time_ptr)
{
(void)timeout_time_ptr; // unused
bool wait_result = m_wakeup_state;
if (m_wakeup_state)
{
m_wakeup_state = m_state_is_permanent;
}
else
{
dICHECK(false); // Self-wakeup should only be used in cases when waiting is called after object is signaled
}
return wait_result;
}
/************************************************************************/
/* Fake mutex class implementation */
/************************************************************************/
class dxFakeMutex
{
public:
dxFakeMutex() {}
bool InitializeObject() { return true; }
public:
void LockMutex() { /* Do nothing */ }
bool TryLockMutex() { /* Do nothing */ return true; }
void UnlockMutex() { /* Do nothing */ }
};
/************************************************************************/
/* Fake lull class implementation */
/************************************************************************/
class dxFakeLull
{
public:
dxFakeLull() {}
bool InitializeObject() { return true; }
public:
void RegisterToLull() { /* Do nothing */ }
void WaitForLullAlarm() { dICHECK(false); } // Fake lull can't be waited
void UnregisterFromLull() { /* Do nothing */ }
void SignalLullAlarmIfAnyRegistrants() { /* Do nothing */ }
};
#endif // #ifndef _ODE_THREADING_FAKE_SYNC_H_
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