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/*---------------------------------------------------------------------------
FILENAME:
templateStates.c
PURPOSE:
Provide the template process state machine handlers.
REVISION HISTORY:
Date Engineer Revision Remarks
01/01/2004 Your Name 0 Original
NOTES:
All references to "template" should be replaced by a meaningful
process name, including the file names and data structures.
----------------------------------------------------------------------------*/
// System include files
#include <termios.h>
// Library include files
// Local include files
#include "template.h"
// global memory declarations
// global memory referenced
// static (local) memory declarations
static void sendRequest (int number)
{
TEMPLATE_MSG_USER_REQUEST request;
request.number = number;
radMsgRouterMessageSend (TEMPLATE_MSGID_USER_REQUEST, &request, sizeof(request));
return;
}
static void processResponse (TEMPLATE_MSG_USER_RESPONSE *response)
{
printf ("Number of primes < %d is %d\n",
response->number,
response->numberOfPrimes);
return;
}
// methods
int templateIdleState (int state, void *stimulus, void *data)
{
STIM *stim = (STIM *)stimulus;
TEMPLATE_WORK *work = (TEMPLATE_WORK *)data;
time_t ntime;
struct tm *locTime;
switch (stim->type)
{
case STIM_DUMMY:
// this one starts this state machine;
// do any initialization, communication, etc. here
// start timer 1
radTimerStart (work->timerNum1, TEMPLATE_TIMER1_PERIOD);
// start timer 2
radTimerStart (work->timerNum2, TEMPLATE_TIMER2_PERIOD);
// return the new state for the machine
return TEMPLATE_STATE_RUN;
case STIM_QMSG:
case STIM_EVENT:
case STIM_TIMER:
break;
}
return state;
}
int templateRunState (int state, void *stimulus, void *data)
{
STIM *stim = (STIM *)stimulus;
TEMPLATE_WORK *work = (TEMPLATE_WORK *)data;
char temp[256];
ssize_t retVal;
int value;
switch (stim->type)
{
case STIM_QMSG:
if (stim->msgType == TEMPLATE_MSGID_USER_RESPONSE)
{
// print out the results
processResponse ((TEMPLATE_MSG_USER_RESPONSE *)stim->msg);
}
break;
case STIM_TIMER:
// process a timer expiry
if (stim->timerNumber == TEMPLATE_TIMER_NUM1)
{
radMsgLog(PRI_STATUS, "Timer 1 Expiry");
radTimerStart (work->timerNum1, TEMPLATE_TIMER1_PERIOD);
return state;
}
else if (stim->timerNumber == TEMPLATE_TIMER_NUM2)
{
radMsgLog(PRI_STATUS, "Timer 2 Expiry");
radTimerStart (work->timerNum2, TEMPLATE_TIMER2_PERIOD);
return state;
}
break;
case STIM_IO:
// read data from stdin
memset (temp, 0, 256);
retVal = read (stim->iofd, temp, 256);
if (retVal == (ssize_t)-1)
{
radMsgLog(PRI_HIGH, "read error on stdin!");
return TEMPLATE_STATE_ERROR;
}
else if (retVal == 0)
{
return state;
}
// send a message to the template2d process to compute the primes
value = atoi (temp);
if (value <= 0)
{
printf ("Integer must be positive!!!\n");
}
else
{
sendRequest (value);
}
// return the same state that got us here (RUN)
return state;
case STIM_EVENT:
break;
}
return state;
}
int templateErrorState (int state, void *stimulus, void *data)
{
STIM *stim = (STIM *)stimulus;
TEMPLATE_WORK *work = (TEMPLATE_WORK *)data;
switch (stim->type)
{
case STIM_IO:
case STIM_QMSG:
case STIM_EVENT:
case STIM_TIMER:
radMsgLog(PRI_STATUS,
"%s:templateErrorState: received stimulus %d",
PROC_NAME_TEMPLATE,
stim->type);
break;
}
return state;
}
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