qte_darm.cpp

00001 //////////////////////////////////////////////////////////////////////////////
00002 // Product: QF/C++
00003 // Last Updated for Version: 4.0.00
00004 // Date of the Last Update:  Apr 07, 2008
00005 //
00006 //                    Q u a n t u m     L e a P s
00007 //                    ---------------------------
00008 //                    innovating embedded systems
00009 //
00010 // Copyright (C) 2002-2008 Quantum Leaps, LLC. All rights reserved.
00011 //
00012 // This software may be distributed and modified under the terms of the GNU
00013 // General Public License version 2 (GPL) as published by the Free Software
00014 // Foundation and appearing in the file GPL.TXT included in the packaging of
00015 // this file. Please note that GPL Section 2[b] requires that all works based
00016 // on this software must also be made publicly available under the terms of
00017 // the GPL ("Copyleft").
00018 //
00019 // Alternatively, this software may be distributed and modified under the
00020 // terms of Quantum Leaps commercial licenses, which expressly supersede
00021 // the GPL and are specifically designed for licensees interested in
00022 // retaining the proprietary status of their code.
00023 //
00024 // Contact information:
00025 // Quantum Leaps Web site:  http://www.quantum-leaps.com
00026 // e-mail:                  info@quantum-leaps.com
00027 //////////////////////////////////////////////////////////////////////////////
00028 #include "qf_pkg.h"
00029 
00030 /// \file
00031 /// \ingroup qf
00032 /// \brief QTimeEvt::disarm() implementation.
00033 
00034 //............................................................................
00035 // NOTE: disarm a time evt (no harm in disarming an already disarmed time evt)
00036 uint8_t QTimeEvt::disarm(void) {
00037     uint8_t wasArmed;
00038     QF_INT_LOCK_KEY_
00039     QF_INT_LOCK_();
00040     if (m_prev != (QTimeEvt *)0) {        // is the time event actually armed?
00041         wasArmed = (uint8_t)1;
00042         if (this == QF_timeEvtListHead_) {
00043             QF_timeEvtListHead_ = m_next;
00044         }
00045         else {
00046             if (m_next != (QTimeEvt *)0) {        // not the last in the list?
00047                 m_next->m_prev = m_prev;
00048             }
00049             m_prev->m_next = m_next;
00050         }
00051         m_prev = (QTimeEvt *)0;             // mark the time event as disarmed
00052 
00053         QS_BEGIN_NOLOCK_(QS_QF_TIMEEVT_DISARM, QS::teObj_, this)
00054             QS_TIME_();                                           // timestamp
00055             QS_OBJ_(this);                           // this time event object
00056             QS_OBJ_(m_act);                               // the active object
00057             QS_TEC_(m_ctr);                             // the number of ticks
00058             QS_TEC_(m_interval);                               // the interval
00059         QS_END_NOLOCK_()
00060     }
00061     else {                                     // the time event was not armed
00062         wasArmed = (uint8_t)0;
00063 
00064         QS_BEGIN_NOLOCK_(QS_QF_TIMEEVT_DISARM_ATTEMPT, QS::teObj_, this)
00065             QS_TIME_();                                           // timestamp
00066             QS_OBJ_(this);                           // this time event object
00067             QS_OBJ_(m_act);                               // the active object
00068         QS_END_NOLOCK_()
00069     }
00070     QF_INT_UNLOCK_();
00071     return wasArmed;
00072 }