void
timeout(const struct timespec *when, void (*func)(void *), void *arg)
{
struct timespec now;
struct timeval tv;
struct to_info *tip;
int err;
gettimeofday(&tv, NULL);
now.tv_sec = tv.tv_sec;
now.tv_nsec = tv.tv_usec * USECTONSEC;
if ((when->tv_sec > now.tv_sec) ||
(when->tv_sec == now.tv_sec && when->tv_nsec > now.tv_nsec)) {
tip = malloc(sizeof(struct to_info));
if (tip != NULL) {
tip->to_fn = func;
tip->to_arg = arg;
tip->to_wait.tv_sec = when->tv_sec - now.tv_sec;
if (when->tv_nsec >= now.tv_nsec ) {
tip->to_wait.tv_nsec = when->tv_nsec - now.tv_sec;
} else {
tip->to_wait.tv_sec--;
tip->to_wait.tv_nsec = SECTONSEC - now.tv_nsec +
when->tv_nsec;
}
err = makethread(timeout_helper, (void *)tip);
if (err == 0)
return;
}
}
(*func)(arg);
}
void timeout(const struct timespec *when, void (*func)(void *), void *arg)
{
struct timespec now;
struct to_info *tip;
int err;
clock_gettime(CLOCK_REALTIME, &now);
if ((when->tv_sec > now.tv_sec) ||
(when->tv_sec == now.tv_sec && when->tv_nsec > now.tv_nsec)) {
tip = malloc(sizeof(struct to_info));
if (tip != NULL) {
tip->to_fn = func;
tip->to_arg = arg;
tip->to_wait.tv_sec = when->tv_sec - now.tv_sec;
if (when->tv_nsec >= now.tv_nsec) {
tip->to_wait.tv_nsec = when->tv_nsec - now.tv_nsec;
} else {
tip->to_wait.tv_sec--;
tip->to_wait.tv_nsec = SECTONSEC - now.tv_nsec + when->tv_nsec;
}
err = makethread(timeout_helper, (void *)tip);
if (err == 0)
return;
else
free(tip);
}
}
/*
* We get here if (a) when <= now, or (b) malloc fails, or
* (c) we can't make a thread, so we just call the function now.
*/
(*func)(arg);
}
int main(void){
int errno;
errno=makethread(thr_fn1,NULL);
printf("errno=%d\n",errno);
//sleep(20);
exit(0);
}
void timeout(const struct timespec *when, void (*func)(void *), void *arg)
{
struct timespec now;
to_info *tip = NULL;
int err = 0;
clock_gettime(CLOCK_REALTIME, &now);
if ((when->tv_sec > now.tv_sec)
|| (when->tv_sec == now.tv_sec && when->tv_nsec > now.tv_nsec))
{
tip = (to_info *)malloc(sizeof(to_info));
if (tip != NULL)
{
tip->to_fn = func;
tip->to_arg = arg;
tip->to_wait.tv_sec = when->tv_sec - now.tv_sec;
if (when->tv_nsec >= now.tv_nsec)
{
tip->to_wait.tv_nsec = when->tv_nsec - now.tv_nsec;
}
else
{
tip->to_wait.tv_sec--;
tip->to_wait.tv_nsec = SECTONSEC - now.tv_nsec + when->tv_nsec;
}
err = makethread(timeout_helper, (void *)tip);
if (err == 0)
{
return ;
}
else
{
free(tip);
}
}
}
//
(*func)(arg);
}
int main(int argc,char *argv []){
return makethread(thread_fn,NULL);
}
