//////////////////////////////////////////////////////////////////////////////// Product: QDPP, for 80x86, uC/OS-II, Turbo C++ 1.01, Large model// Version: Compatible with QF/C 3.1.yy// Updated: Dec 09, 2005//// Copyright (C) 2002-2005 Quantum Leaps, LLC. All rights reserved.//// This software may be distributed and modified under the terms of the GNU// General Public License version 2 (GPL) as published by the Free Software// Foundation and appearing in the file GPL.TXT included in the packaging of// this file. Please note that GPL Section 2[b] requires that all works based// on this software must also be made publicly available under the terms of// the GPL ("Copyleft").//// Alternatively, this software may be distributed and modified under the// terms of Quantum Leaps commercial licenses, which are designed for users// who want to retain proprietary status of their code. This "dual-licensing"// model is possible because Quantum Leaps owns the copyright to this source// code and as such can license its intelectual property any number of times.// The users who license this software under one of Quantum Leaps commercial// licenses do not use this software under the GPL and therefore are not// subject to any of its terms.//// Contact information:// Quantum Leaps Web site:  http://www.quantum-leaps.com// Quantum Leaps licensing: http://www.quantum-leaps.com/licensing// Quantum Leaps products:  http://www.quantum-leaps.com/products// e-mail:                  sales@quantum-leaps.com//////////////////////////////////////////////////////////////////////////////#include "qf_port.h"#include "qdpp.h"#include "qassert.h"#include <stdlib.h>#include <stdio.h>Q_DEFINE_THIS_FILEclass KbdMgr : public QActive {                            // keyboard managerpublic:    KbdMgr() : QActive((QState)&KbdMgr::initial) {    }protected:    static void initial(KbdMgr *me, QEvent const *e);    static QSTATE active(KbdMgr *me, QEvent const *e);};//............................................................................void kbdMgrStart(uint8_t prio, QEvent const *qSto[], uint32_t qLen,                 void *stkSto, uint32_t stkSize){    static KbdMgr kbdMgr;    kbdMgr.start(prio, qSto, qLen, stkSto, stkSize, (QEvent *)0);}//............................................................................void KbdMgr::initial(KbdMgr *me, QEvent const *) {    me->subscribe(KBD_SIG);    me->postFIFO(Q_NEW(QEvent, START_SIG));  // post a start event, see NOTE01    Q_INIT(&KbdMgr::active);}//............................................................................QSTATE KbdMgr::active(KbdMgr *me, QEvent const *e) {    switch (e->sig) {        case START_SIG: {            QF::start();                  // enable the interrupts, see NOTE01            return (QSTATE)0;        }        case KBD_SIG: {            displayKey(((KbdEvt const *)e)->key);            return (QSTATE)0;        }    }    return (QSTATE)&QHsm::top;}////////////////////////////////////////////////////////////////////////////////// NOTE01:// uC/OS-II requires that the interrupts be not enabled until the initial// context switch occurrs in OSInit(). To arrange for that, an event// is posted to self and waits in the event queue until the KbdMgr task// is scheduled in by the uC/OS-II. Only then the internal transition// triggered by the event calls the QF::start() method that initializes// and enables the interrupts.//