glibc/sysdeps/unix/sysv/linux/epoll_wait.c

35 lines
1.2 KiB
C

/* Linux epoll_wait syscall implementation.
Copyright (C) 2017-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<https://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/epoll.h>
#include <sysdep-cancel.h>
int
epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout)
{
#ifdef __NR_epoll_wait
return SYSCALL_CANCEL (epoll_wait, epfd, events, maxevents, timeout);
#else
return epoll_pwait (epfd, events, maxevents, timeout, NULL);
#endif
}