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/***
This file is part of PulseAudio.
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio 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.
PulseAudio 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
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
/***
Based on work for the GNU C Library.
Copyright (C) 1994,96,97,98,99,2000,2001,2004 Free Software Foundation, Inc.
***/
#if defined(HAVE_POLL_H)
#include <poll.h>
#else
/* Event types that can be polled for. These bits may be set in `events'
to indicate the interesting event types; they will appear in `revents'
to indicate the status of the file descriptor. */
#define POLLIN 0x001 /* There is data to read. */
#define POLLPRI 0x002 /* There is urgent data to read. */
#define POLLOUT 0x004 /* Writing now will not block. */
/* Event types always implicitly polled for. These bits need not be set in
`events', but they will appear in `revents' to indicate the status of
the file descriptor. */
#define POLLERR 0x008 /* Error condition. */
#define POLLHUP 0x010 /* Hung up. */
#define POLLNVAL 0x020 /* Invalid polling request. */
/* Data structure describing a polling request. */
struct pollfd {
int fd; /* File descriptor to poll. */
short int events; /* Types of events poller cares about. */
short int revents; /* Types of events that actually occurred. */
};
/* 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. */
#endif /* HAVE_POLL_H */
#if defined(HAVE_POLL_H) && !defined(OS_IS_DARWIN)
#define pa_poll(fds,nfds,timeout) poll((fds),(nfds),(timeout))
#else
int pa_poll(struct pollfd *fds, unsigned long nfds, int timeout);
#endif
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