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Old 11-11-2009, 06:11 AM   #1
LQ Newbie
Registered: Nov 2009
Posts: 2

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timer_settime can't work


I need a timer. I use timer_settime and timer_create to crate a timer. It works on the fodera 10. But it can't work on my embedded board. Below is my code. Can you give me a suggestion?

#include <stdio.h>
#include <time.h>
#include <signal.h>
#include <errno.h>
#include <string.h>

timer_t OSTimer1;

int timerFlag = 1;
void GmTimerCallBack(sigval_t data)
int ID = data.sival_int;
printf("timerID %d timer out\n", ID);
timerFlag = 0;

int GmTimerStart(int msec)
struct sigevent se;
struct itimerspec ts, ots;
int count;

memset(&se, 0, sizeof(se));
se.sigev_notify = SIGEV_THREAD;
se.sigev_notify_function = GmTimerCallBack;
se.sigev_value.sival_int = 1;

if(timer_create(CLOCK_REALTIME, &se, &OSTimer1) != 0)
printf("Create Timer Error[%d]: %s\n", count, strerror(errno));
return -1;

/*ts.it_value.tv_sec = 0;
ts.it_value.tv_nsec = 100000000;*/
ts.it_interval.tv_sec = msec/1000;
ts.it_interval.tv_nsec = (msec%1000)*1000000;
ts.it_value = ts.it_interval;

if(timer_settime(OSTimer1, 0, &ts, &ots) != 0)
printf("Set Timer Error[%d]: %s\n", count, strerror(errno));
return -1;
return 1;

void GmTimerStop(int id)
int res;

res = timer_delete(OSTimer1);
if(res != 0)
printf("Stop Delete Timer Error[%d]: %s\n", id, strerror(errno));

int main()
int timer;
timer = GmTimerStart(5000);
return 0;
Old 11-12-2009, 09:05 AM   #2
Registered: Jan 2009
Location: /dev/ph
Distribution: Fedora, Ubuntu, Redhat, Centos
Posts: 299

Rep: Reputation: 62
What error are you getting?
Old 11-12-2009, 08:24 PM   #3
LQ Newbie
Registered: Nov 2009
Posts: 2

Original Poster
Rep: Reputation: 0
Originally Posted by fpmurphy View Post
What error are you getting?
I can't see any error. I run the process, but I can't see any timeout message.


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