int main(int argc, char **argv){
/*
key_t shmKey;
int shmid;
time_t curtime = -1;
char xtime[40]="\0";
long int size=4194304; // = 4 MB // 131072; //65536;
*/
long int ii=0;
long int adc=0;
pid_t pid;
int xx=0;
struct sigaction act;
/*
Set up LabJack U6
*/
labjackSetup();
/*
Shared memory creation and attachment
*/
shmSetup();
/*
Get the process number for interupts when the two programs need to interact
*/
pid = getpid();
lnptr->pid = pid;
printf("pid = %li \n",lnptr->pid);
/*
Set up the signal capture routine for when the reading
program want something changed
*/
memset (&act,'\0', sizeof(act));
act.sa_sigaction = &handlerCommand;
act.sa_flags = SA_SIGINFO;
if (sigaction(SIGALRM,&act,NULL) < 0){
perror("sigaction");
return 1;
}
/*
Read setup file on disk and load into shared memory
*/
printf("Read conf file...\n");
readConf();
printf(" ... Conf file read \n");
/*
Go out and read RTDs and get everything needed loaded into shared memory
*/
updateRTD();
/*
for (ii=0; ii<20; ii++){
if (lnptr->ge[ii].onoff == 1){
lnptr->ge[ii].rtd = readRTD(lnptr->ge[ii].chanRTD);
lnptr->ge[ii].oflo = readRTD(lnptr->ge[ii].chanOFLO);
printf("Active det: %li -> %lf %lf\n", ii,lnptr->ge[ii].rtd,lnptr->ge[ii].oflo );
}
}
lnptr->tank.rtd = readRTD(lnptr->tank.chanRTD);
lnptr->tank.pressure = readRTD(lnptr->tank.chanPRES);
printf("TANK: %lf\n", lnptr->tank.rtd);
*/
/*
Setup time of next fill based on current time and configure file
*/
curtime = time(NULL);
time0 = curtime; // record starting time of program
time1 = time0 + INTERVAL; // set up next read of RTD...usually every minute
for (ii=0; ii<20; ii++){
if (lnptr->ge[ii].onoff == 1){
lnptr->ge[ii].next = time0 + lnptr->ge[ii].interval;
}
else {
lnptr->ge[ii].next = 0;
}
}
/*
Setup monitoring loop to look for changes and requests
*/
setTimer();
/*
tout_val.it_interval.tv_sec = 0;
tout_val.it_interval.tv_usec = 0;
tout_val.it_value.tv_sec = INTERVAL; // set timer for "INTERVAL (10) seconds
tout_val.it_value.tv_usec = 0;
setitimer(ITIMER_REAL, &tout_val,0); // start the timer
*/
/*
Setup monitoring loop to look for changes/minute and requests
*/
lnptr->command = 0;
while(lnptr->command != -1) {
curtime = time(NULL); // check what time it is
if (curtime >= time1) { // read RTDs every INTERVAL (usually ~60 s)
time1 = time1+INTERVAL;
updateRTD();
}
/*
Check if an RTD is too high
*/
for (ii=0;ii<20;ii++){ // run thru each detector possibility
if (lnptr->ge[ii].onoff == 1) { // run thru each detector that is ON
if (lnptr->ge[ii].rtd > lnptr->ge[ii].limit){ // check rtd is within limit
printf("SHUT DOWN !\n");
strcpy(lnptr->ge[ii].status,"ALARM");
}
if (curtime > lnptr->ge[ii].next){ // check rtd is within limit
printf("start a fill !\n");
}
}
}
// AFTER THIS LOOP CHECK FOR COMMANDS COMING IN FROM CONTROL PROGRAM
/*
switch (lnptr->command) {
case 0:
// signal(SIGTERM,alarm_wakeup); // set the Alarm signal capture
sleep (1); // pause for time
curtime = time(NULL);
printf ("curtime = %li %li \n", curtime, (time1-curtime));
if (curtime >= time1) {
time1 = time1+INTERVAL;
updateRTD();
}
break;
case 1:
printf ("1 selected\n");
break;
case 2:
printf ("2 selected\n");
break;
default:
printf ("default selected\n");
lnptr->command=-1;
break;
}
*/
sleep (59);
}
/*
Alarm processing
*/
/*
*/
/*
Print out some of shared memory to show it has been accessed
ln.ge[0].rtd = 80.2;
for (ii=0; ii< 20; ii++){
ln.ge[ii].rtd = ln.ge[0].rtd + (double) ii;
lnptr->ge[ii].rtd = ln.ge[ii].rtd;
printf ("rtd[%li] = %.2lf = %.2lf\n", ii, ln.ge[ii].rtd,lnptr->ge[ii].rtd);
sleep (1);
}
*/
shmdt(lnptr); // detach from shared memory segment
printf("detached from SHM\n");
shmctl(shmid, IPC_RMID, NULL); // remove the shared memory segment hopefully forever
printf("removed from SHM\n");
closeUSBConnection(hU6);
printf("USB closed\n");
return 0;
}
//main
int main (int argc, const char * argv[]) {
bool retval;
HANDLE ljHandle;
printf("Main\n");
if( (ljHandle = openUSBConnection(-1)) == NULL) {
printf("Error\n");
return -1;
}
retval = ljU6ConfigPorts(ljHandle);
long long i;
long long t1,t2;
long state;
long long savedEl[STATSN+1];
long long tStart;
int savedN=0;
double meanEl;
int iM;
int r;
double maxEl;
//eDO(ljHandle, LJU6_REWARD_FIO, 0);
tStart = timeUS();
for (i=0; true; i++) {
t1 = timeUS();
// DI
r = eDI(ljHandle, 0, &state);
if (r < 0) {
printf("eDI call failed. Exiting");
return r;
}
// // DO high
//usleep(1000);
//r = eDO(ljHandle, 1, 1);
//if (r < 0) {
// printf("eDO high call failed. Exiting");
// return r;
//}
//// DO low
//usleep(2000);
//r = eDO(ljHandle, 1, 0);
//if (r < 0) {
// printf("eDO low call failed. Exiting");
// return r;
//}
t2 = timeUS();
if (i % 100 == 0) {
printf("Elapsed %lld us, iter %10lld\n", t2-t1, i);
fflush(stdout);
}
savedEl[savedN] = t2-t1;
savedN++;
// stats, every STATSN trials
if (i % STATSN == 0 && i>0) { // not the first time
meanEl = 0;
maxEl = 0;
for (iM=0; iM<STATSN; iM++) {
meanEl = meanEl + savedEl[iM];
if (savedEl[iM] > maxEl) {
maxEl = savedEl[iM];
}
}
meanEl = meanEl/STATSN;
savedN = 0;
printf("** Mean %8.1f max %8.1f totalElapsedUs %lld\n", meanEl, maxEl, timeUS()-tStart);
}
//while (timeUS() - t1 < 1000) {
// usleep(1000);
//}
}
closeUSBConnection(ljHandle);
return 0;
}
