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/* poll file descriptors. Hurd version.
Copyright (C) 1998-2020 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 <sys/poll.h>
#include <sys/time.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Poll the file descriptors described by the NFDS structures starting at
FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
an event to occur; if TIMEOUT is -1, block until an event occurs.
Returns the number of file descriptors with events, zero if timed out,
or -1 for errors. */
int
__poll (struct pollfd *fds, nfds_t nfds, int timeout)
{
struct timespec ts, *to;
if (timeout < 0)
to = NULL;
else
{
ts.tv_sec = timeout / 1000;
ts.tv_nsec = (timeout % 1000) * 1000000;
to = &ts;
}
return _hurd_select (nfds, fds, NULL, NULL, NULL, to, NULL);
}
libc_hidden_def (__poll)
weak_alias (__poll, poll)
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