qf_new.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 #include "qassert.h"
00030 
00031 Q_DEFINE_THIS_MODULE(qf_new)
00032 
00033 /// \file
00034 /// \ingroup qf
00035 /// \brief QF::new_() implementation.
00036 
00037 //............................................................................
00038 QEvent *QF::new_(uint16_t evtSize, QSignal sig) {
00039                     // find the pool id that fits the requested event size ...
00040     uint8_t id = (uint8_t)0;
00041     while (evtSize > QF_EPOOL_EVENT_SIZE_(QF_pool_[id])) {
00042         ++id;
00043         Q_ASSERT(id < QF_maxPool_);      // cannot run out of registered pools
00044     }
00045 
00046     QS_INT_LOCK_KEY_
00047     QS_BEGIN_(QS_QF_NEW, (void *)0, (void *)0)
00048         QS_TIME_();                                               // timestamp
00049         QS_EVS_(evtSize);                             // the size of the event
00050         QS_SIG_(sig);                               // the signal of the event
00051     QS_END_()
00052 
00053     QEvent *e;
00054     QF_EPOOL_GET_(QF_pool_[id], e);
00055     Q_ASSERT(e != (QEvent *)0);             // pool must not run out of events
00056 
00057     e->sig = sig;                                 // set signal for this event
00058 
00059                                  // store the dynamic attributes of the event:
00060                                  // the pool ID and the reference counter == 0
00061     e->dynamic_ = (uint8_t)((id + 1) << 6);
00062     return e;
00063 }