mirror of
https://github.com/lucannez64/darling-lol.git
synced 2026-10-26 19:47:42 +00:00
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
#include <sys/event.h>
|
|
#include <mach/mach_time.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <stdint.h>
|
|
|
|
static mach_timebase_info_data_t scale;
|
|
static double milliseconds(uint64_t ticks) {
|
|
return (double)ticks * scale.numer / scale.denom / 1000000.0;
|
|
}
|
|
int main(void) {
|
|
mach_timebase_info(&scale);
|
|
int queue=kqueue();
|
|
if(queue<0)return 1;
|
|
struct timespec immediate={0,0},limit={1,0};
|
|
struct kevent64_s change={.ident=1,.filter=EVFILT_TIMER,
|
|
.flags=EV_ADD|EV_ENABLE,.fflags=NOTE_NSECONDS,.data=16666667},event;
|
|
if(kevent64(queue,&change,1,NULL,0,0,&immediate))return 2;
|
|
uint64_t start=mach_absolute_time();unsigned ticks=0;
|
|
while(ticks<60) {
|
|
if(kevent64(queue,NULL,0,&event,1,0,&limit)!=1 ||
|
|
event.filter!=EVFILT_TIMER || event.data<=0)return 3;
|
|
ticks+=(unsigned)event.data;
|
|
}
|
|
double elapsed=milliseconds(mach_absolute_time()-start);
|
|
change.flags=EV_DELETE;
|
|
if(kevent64(queue,&change,1,NULL,0,0,&immediate))return 4;
|
|
start=mach_absolute_time();
|
|
change.flags=EV_ADD|EV_ENABLE|EV_ONESHOT;
|
|
change.fflags=NOTE_MACHTIME|NOTE_ABSOLUTE;
|
|
change.data=start+20000000ull*scale.denom/scale.numer;
|
|
if(kevent64(queue,&change,1,&event,1,0,&limit)!=1 || event.data!=1)return 5;
|
|
double deadline=milliseconds(mach_absolute_time()-start);
|
|
int stale=kevent64(queue,NULL,0,&event,1,0,&immediate);
|
|
close(queue);
|
|
int pass=elapsed>=980 && elapsed<1100 && deadline>=19 && deadline<100 && stale==0;
|
|
printf("KQUEUE_TIMER ticks=%u elapsed_ms=%.2f absolute_ms=%.2f stale=%d pass=%d\n",
|
|
ticks,elapsed,deadline,stale,pass);
|
|
return pass?0:6;
|
|
}
|