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qpcpp/examples/arm-cortex/qk/gnu/dpp-qk-ev-lm3s811/philo.cpp
Quantum Leaps 7a833320e6 4.5.02
2012-08-15 13:55:24 -04:00

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6.9 KiB
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//////////////////////////////////////////////////////////////////////////////
// Model: dpp.qm
// File: ././philo.cpp
//
// This file has been generated automatically by QP Modeler (QM).
// DO NOT EDIT THIS FILE MANUALLY.
//
// Please visit www.state-machine.com/qm for more information.
//////////////////////////////////////////////////////////////////////////////
#include "qp_port.h"
#include "dpp.h"
#include "bsp.h"
namespace DPP {
Q_DEFINE_THIS_FILE
// Active object class -------------------------------------------------------
// @(/2/0) ...................................................................
class Philo : public QP::QActive {
private:
QP::QTimeEvt m_timeEvt;
public:
Philo();
protected:
static QP::QState initial(Philo * const me, QP::QEvt const * const e);
static QP::QState thinking(Philo * const me, QP::QEvt const * const e);
static QP::QState hungry(Philo * const me, QP::QEvt const * const e);
static QP::QState eating(Philo * const me, QP::QEvt const * const e);
};
// Local objects -------------------------------------------------------------
static Philo l_philo[N_PHILO]; // storage for all Philos
// helper function to provide a randomized think time for Philos
inline QP::QTimeEvtCtr think_time() {
return static_cast<QP::QTimeEvtCtr>((BSP_random() % BSP_TICKS_PER_SEC)
+ (BSP_TICKS_PER_SEC/2U));
}
// helper function to provide a randomized eat time for Philos
inline QP::QTimeEvtCtr eat_time() {
return static_cast<QP::QTimeEvtCtr>((BSP_random() % BSP_TICKS_PER_SEC)
+ BSP_TICKS_PER_SEC);
}
// helper function to provide the ID of Philo "me"
inline uint8_t PHILO_ID(Philo const * const me) {
return static_cast<uint8_t>(me - l_philo);
}
enum InternalSignals { // internal signals
TIMEOUT_SIG = MAX_SIG
};
// Global objects ------------------------------------------------------------
QP::QActive * const AO_Philo[N_PHILO] = { // "opaque" pointers to Philo AO
&l_philo[0],
&l_philo[1],
&l_philo[2],
&l_philo[3],
&l_philo[4]
};
// Philo definition ----------------------------------------------------------
// @(/2/0) ...................................................................
// @(/2/0/1) .................................................................
Philo::Philo()
: QActive(Q_STATE_CAST(&Philo::initial)),
m_timeEvt(TIMEOUT_SIG)
{
}
// @(/2/0/2) .................................................................
// @(/2/0/2/0)
QP::QState Philo::initial(Philo * const me, QP::QEvt const * const e) {
static bool registered = false; // starts off with 0, per C-standard
(void)e; // suppress the compiler warning about unused parameter
if (!registered) {
registered = true;
QS_OBJ_DICTIONARY(&l_philo[0]);
QS_OBJ_DICTIONARY(&l_philo[0].m_timeEvt);
QS_OBJ_DICTIONARY(&l_philo[1]);
QS_OBJ_DICTIONARY(&l_philo[1].m_timeEvt);
QS_OBJ_DICTIONARY(&l_philo[2]);
QS_OBJ_DICTIONARY(&l_philo[2].m_timeEvt);
QS_OBJ_DICTIONARY(&l_philo[3]);
QS_OBJ_DICTIONARY(&l_philo[3].m_timeEvt);
QS_OBJ_DICTIONARY(&l_philo[4]);
QS_OBJ_DICTIONARY(&l_philo[4].m_timeEvt);
QS_FUN_DICTIONARY(&Philo::initial);
QS_FUN_DICTIONARY(&Philo::thinking);
QS_FUN_DICTIONARY(&Philo::hungry);
QS_FUN_DICTIONARY(&Philo::eating);
}
QS_SIG_DICTIONARY(HUNGRY_SIG, me); // signal for each Philos
QS_SIG_DICTIONARY(TIMEOUT_SIG, me); // signal for each Philos
me->subscribe(EAT_SIG);
return Q_TRAN(&Philo::thinking);
}
// @(/2/0/2/1) ...............................................................
QP::QState Philo::thinking(Philo * const me, QP::QEvt const * const e) {
QP::QState status;
switch (e->sig) {
// @(/2/0/2/1)
case Q_ENTRY_SIG: {
me->m_timeEvt.postIn(me, think_time());
status = Q_HANDLED();
break;
}
// @(/2/0/2/1)
case Q_EXIT_SIG: {
(void)me->m_timeEvt.disarm();
status = Q_HANDLED();
break;
}
// @(/2/0/2/1/0)
case TIMEOUT_SIG: {
status = Q_TRAN(&Philo::hungry);
break;
}
// @(/2/0/2/1/1)
case EAT_SIG: // intentionally fall through
case DONE_SIG: {
/* EAT or DONE must be for other Philos than this one */
Q_ASSERT(Q_EVT_CAST(TableEvt)->philoNum != PHILO_ID(me));
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&QHsm::top);
break;
}
}
return status;
}
// @(/2/0/2/2) ...............................................................
QP::QState Philo::hungry(Philo * const me, QP::QEvt const * const e) {
QP::QState status;
switch (e->sig) {
// @(/2/0/2/2)
case Q_ENTRY_SIG: {
TableEvt *pe = Q_NEW(TableEvt, HUNGRY_SIG);
pe->philoNum = PHILO_ID(me);
AO_Table->POST(pe, me);
status = Q_HANDLED();
break;
}
// @(/2/0/2/2/0)
case EAT_SIG: {
// @(/2/0/2/2/0/0)
if (Q_EVT_CAST(TableEvt)->philoNum == PHILO_ID(me)) {
status = Q_TRAN(&Philo::eating);
}
else {
status = Q_UNHANDLED();
}
break;
}
// @(/2/0/2/2/1)
case DONE_SIG: {
/* DONE must be for other Philos than this one */
Q_ASSERT(Q_EVT_CAST(TableEvt)->philoNum != PHILO_ID(me));
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&QHsm::top);
break;
}
}
return status;
}
// @(/2/0/2/3) ...............................................................
QP::QState Philo::eating(Philo * const me, QP::QEvt const * const e) {
QP::QState status;
switch (e->sig) {
// @(/2/0/2/3)
case Q_ENTRY_SIG: {
me->m_timeEvt.postIn(me, eat_time());
status = Q_HANDLED();
break;
}
// @(/2/0/2/3)
case Q_EXIT_SIG: {
TableEvt *pe = Q_NEW(TableEvt, DONE_SIG);
pe->philoNum = PHILO_ID(me);
QP::QF::PUBLISH(pe, me);
(void)me->m_timeEvt.disarm();
status = Q_HANDLED();
break;
}
// @(/2/0/2/3/0)
case TIMEOUT_SIG: {
status = Q_TRAN(&Philo::thinking);
break;
}
// @(/2/0/2/3/1)
case EAT_SIG: // intentionally fall through
case DONE_SIG: {
/* EAT or DONE must be for other Philos than this one */
Q_ASSERT(Q_EVT_CAST(TableEvt)->philoNum != PHILO_ID(me));
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&QHsm::top);
break;
}
}
return status;
}
} // namespace DPP
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