Programmer’s Guide |
#include<sys/stat.h> #include<sys/ioctl.h> #include<sys/select.h> #include<sys/time.h> #include<moxadevice.h>
static void mydelay(unsigned long msec)
{
struct timevaltime;
time.tv_sec = msec / 1000;
time.tv_usec = (msec % 1000) * 1000; select(1, NULL, NULL, NULL, &time);
}
static int swtdfd; static int stopflag=0;
static void stop_swatchdog()
{
stopflag = 1;
}
static void do_swatchdog(void)
{
swtd_enable(swtdfd, 500); while ( stopflag == 0 ) {
mydelay(250); swtd_ack(swtdfd);
}
swtd_disable(swtdfd);
}
int main(int argc, char *argv[])
{
pid_t sonpid;
signal(SIGUSR1, stop_swatchdog); swtdfd = swtd_open();
if ( swtdfd < 0 ) {
printf(“Open sWatchDog device fail !\n”); exit(1);
}
if ( (sonpid=fork()) == 0 ) do_swatchdog();
//do user application main function
…..
…..
…..
//end user application
kill(sonpid, SIGUSR1); swtd_close(swtdfd); exit(1);
}
The makefile is shown below:
all:
