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/* ISC license. */
#include <errno.h>
#include <skalibs/error.h>
#include <skalibs/iopause.h>
#include <skalibs/socket.h>
ssize_t socket_ioloop (int s, char *buf, size_t len, char *ip, uint16_t *port, socket_io_func_ref f, int w, tain const *deadline, tain *stamp)
{
iopause_fd x = { .fd = s, .events = w ? IOPAUSE_WRITE : IOPAUSE_READ, .revents = 0 } ;
for (;;)
{
ssize_t r = iopause_stamp(&x, 1, deadline, stamp) ;
if (r < 0) return -1 ;
if (!r) return (errno = ETIMEDOUT, -1) ;
if (x.revents & IOPAUSE_EXCEPT) return (errno = EIO, -1) ;
if (x.revents & x.events)
{
r = (*f)(s, buf, len, ip, port) ;
if (r < 0)
{
if (!error_isagain(errno)) return -1 ;
}
else return r ;
}
}
}
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