sortix-mirror/libc/poll/poll.c

30 lines
1.0 KiB
C

/*
* Copyright (c) 2012 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* poll/poll.c
* Input/output multiplexing.
*/
#include <poll.h>
#include <stddef.h>
int poll(struct pollfd* fds, nfds_t nfds, int timeout)
{
struct timespec ts;
ts.tv_sec = timeout / 1000;
ts.tv_nsec = timeout % 1000;
return ppoll(fds, nfds, timeout < 0 ? NULL : &ts, NULL);
}