qeq_init.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 QEQueue::init() implementation.
00033 
00034 //............................................................................
00035 void QEQueue::init(QEvent const *qSto[], QEQueueCtr qLen) {
00036     m_frontEvt = (QEvent *)0;                        // no events in the queue
00037     m_ring     = &qSto[0];
00038     m_end      = qLen;
00039     m_head     = (QEQueueCtr)0;
00040     m_tail     = (QEQueueCtr)0;
00041     m_nFree    = qLen;
00042     m_nMin     = qLen;
00043 
00044     QS_INT_LOCK_KEY_
00045     QS_BEGIN_(QS_QF_EQUEUE_INIT, QS::eqObj_, this)
00046         QS_OBJ_(qSto);                                  // this QEQueue object
00047         QS_EQC_(qLen);                              // the length of the queue
00048     QS_END_()
00049 }