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/* ISC license. */
#include <errno.h>
#include <skalibs/error.h>
#include <skalibs/iopause.h>
#include <s6/ftrigr.h>
int ftrigr_wait_or (ftrigr_t *a, uint16_t const *idlist, unsigned int n, tain_t const *deadline, tain_t *stamp, char *c)
{
iopause_fd x = { -1, IOPAUSE_READ | IOPAUSE_EXCEPT, 0 } ;
x.fd = ftrigr_fd(a) ;
if (x.fd < 0) return -1 ;
for (;;)
{
unsigned int i = 0 ;
int r ;
for (; i < n ; i++)
{
r = ftrigr_check(a, idlist[i], c) ;
if (r < 0) return r ;
else if (r) return i ;
}
r = iopause_stamp(&x, 1, deadline, stamp) ;
if (r < 0) return 0 ;
else if (!r) return (errno = ETIMEDOUT, -1) ;
else if (ftrigr_update(a) < 0) return -1 ;
}
return (errno = EPROTO, -1) ; /* can't happen */
}
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