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#include <u.h>
#define NOPLAN9DEFINES
#include <sys/param.h>
#include <sys/time.h>
#include <sched.h>
#include <libc.h>
#if defined(__NetBSD__) || (defined(__OpenBSD__) && OpenBSD <= 200611)
#if !defined(sched_yield)
# define sched_yield() \
do{ struct timespec ts; \
ts.tv_sec = 0; \
ts.tv_nsec = 0; \
nanosleep(&ts, 0); \
}while(0)
#endif
#endif
int
p9sleep(long milli)
{
struct timeval tv;
if(milli == 0){
sched_yield();
return 0;
}
tv.tv_sec = milli/1000;
tv.tv_usec = (milli%1000)*1000;
return select(0, 0, 0, 0, &tv);
}
long
p9alarm(ulong milli)
{
struct itimerval itv;
struct itimerval oitv;
itv.it_interval.tv_sec = 0;
itv.it_interval.tv_usec = 0;
itv.it_value.tv_sec = milli/1000;
itv.it_value.tv_usec = (milli%1000)*1000;
if(setitimer(ITIMER_REAL, &itv, &oitv) < 0)
return -1;
return oitv.it_value.tv_sec*1000+oitv.it_value.tv_usec/1000;
}
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