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/* ISC license. */
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <skalibs/error.h>
#include <skalibs/tai.h>
#include <skalibs/iopause.h>
#include <skalibs/unix-timed.h>
/* For MacOS, that still doesn't know what POSIX says */
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif
int ipc_timed_send (int fd, char const *s, size_t len, tain_t const *deadline, tain_t *stamp)
{
iopause_fd x = { .fd = fd, .events = IOPAUSE_WRITE, .revents = 0 } ;
for (;;)
{
int r = iopause_stamp(&x, 1, deadline, stamp) ;
if (r < 0) return 0 ;
else if (!r) return (errno = ETIMEDOUT, 0) ;
else if (x.revents & IOPAUSE_WRITE)
{
if (send(fd, s, len, MSG_NOSIGNAL) == (ssize_t)len) break ;
if (!error_isagain(errno)) return 0 ;
}
else if (x.revents & IOPAUSE_EXCEPT) return (send(fd, s, len, MSG_NOSIGNAL) == (ssize_t)len) ;
}
return 1 ;
}
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