69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
/*
|
|
* Test that the sqthread goes to sleep around the specified time, and that
|
|
* the NEED_WAKEUP flag is then set.
|
|
*/
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/time.h>
|
|
#include "liburing.h"
|
|
|
|
static unsigned long long mtime_since(const struct timeval *s,
|
|
const struct timeval *e)
|
|
{
|
|
long long sec, usec;
|
|
|
|
sec = e->tv_sec - s->tv_sec;
|
|
usec = (e->tv_usec - s->tv_usec);
|
|
if (sec > 0 && usec < 0) {
|
|
sec--;
|
|
usec += 1000000;
|
|
}
|
|
|
|
sec *= 1000;
|
|
usec /= 1000;
|
|
return sec + usec;
|
|
}
|
|
|
|
static unsigned long long mtime_since_now(struct timeval *tv)
|
|
{
|
|
struct timeval end;
|
|
|
|
gettimeofday(&end, NULL);
|
|
return mtime_since(tv, &end);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct io_uring_params p = {};
|
|
struct timeval tv;
|
|
struct io_uring ring;
|
|
int ret;
|
|
|
|
if (argc > 1)
|
|
return 0;
|
|
|
|
p.flags = IORING_SETUP_SQPOLL;
|
|
p.sq_thread_idle = 100;
|
|
|
|
ret = io_uring_queue_init_params(1, &ring, &p);
|
|
if (ret) {
|
|
if (geteuid()) {
|
|
printf("%s: skipped, not root\n", argv[0]);
|
|
return 0;
|
|
}
|
|
fprintf(stderr, "queue_init=%d\n", ret);
|
|
return 1;
|
|
}
|
|
|
|
gettimeofday(&tv, NULL);
|
|
do {
|
|
usleep(1000);
|
|
if ((*ring.sq.kflags) & IORING_SQ_NEED_WAKEUP)
|
|
return 0;
|
|
} while (mtime_since_now(&tv) < 1000);
|
|
|
|
return 1;
|
|
}
|