|author||Lennart Poettering <firstname.lastname@example.org>||2006-06-19 21:53:48 +0000|
|committer||Lennart Poettering <email@example.com>||2006-06-19 21:53:48 +0000|
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/pulsecore/poll.h')
1 files changed, 57 insertions, 0 deletions
diff --git a/src/pulsecore/poll.h b/src/pulsecore/poll.h
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+/* $Id$ */
+ Compatibility definitions for System V `poll' interface.
+ Copyright (C) 1994,96,97,98,99,2000,2001,2004 Free Software Foundation, Inc.
+ Copyright (C) 2005, Cendio AB.
+ This file is part of PulseAudio.
+ Based on work for the GNU C Library.
+ PulseAudio is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Library General Public License as published
+ by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+ You should have received a copy of the GNU Library General Public
+ License along with PulseAudio; If not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+/* 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. */
+/* Type used for the number of file descriptors. */
+typedef unsigned long int nfds_t;
+/* Data structure describing a polling request. */
+ 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. */
+extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);