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/* ISC license. */
#include <skalibs/sysdeps.h>
#ifdef SKALIBS_HASPPOLL
/* Just in case OpenBSD implements ppoll before fixing EOVERFLOW.
Stranger things have happened in the wonderful world of OpenBSD. */
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <errno.h>
#include <time.h>
#include <poll.h>
#include <skalibs/tai.h>
#include <skalibs/iopause.h>
int iopause_ppoll (iopause_fd *x, unsigned int len, tain_t const *deadline, tain_t const *stamp)
{
struct timespec ts = { .tv_sec = 0, .tv_nsec = 0 } ;
if (deadline && tain_less(stamp, deadline))
{
tain_t delta ;
tain_sub(&delta, deadline, stamp) ;
if (!timespec_from_tain_relative(&ts, &delta))
{
if (errno != EOVERFLOW) return -1 ;
else deadline = 0 ;
}
}
return ppoll(x, len, deadline ? &ts : 0, 0) ;
}
#else
#include <errno.h>
#include <skalibs/iopause.h>
int iopause_ppoll (iopause_fd *x, unsigned int len, tain_t const *deadline, tain_t const *stamp)
{
(void)x ;
(void)len ;
(void)deadline ;
(void)stamp ;
return (errno = ENOSYS, -1) ;
}
#endif
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