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/* Linux poll implementation.
Copyright (C) 2017-2022 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 <errno.h>
#include <sys/poll.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
int
__poll (struct pollfd *fds, nfds_t nfds, int timeout)
{
#ifdef __NR_poll
return SYSCALL_CANCEL (poll, fds, nfds, timeout);
#else
struct timespec timeout_ts;
struct timespec *timeout_ts_p = NULL;
if (timeout >= 0)
{
timeout_ts.tv_sec = timeout / 1000;
timeout_ts.tv_nsec = (timeout % 1000) * 1000000;
timeout_ts_p = &timeout_ts;
}
return SYSCALL_CANCEL (ppoll, fds, nfds, timeout_ts_p, NULL, 0);
#endif
}
libc_hidden_def (__poll)
weak_alias (__poll, poll)
strong_alias (__poll, __libc_poll)
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