[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / mips / bits / poll.h

/* Copyright (C) 1997-2019 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
   <http://www.gnu.org/licenses/>.  */

#ifndef _SYS_POLL_H
# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
#endif

/* 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.  */

#if defined __USE_XOPEN || defined __USE_XOPEN2K8
/* These values are defined in XPG4.2.  */
# define POLLRDNORM	0x040		/* Normal data may be read.  */
# define POLLRDBAND	0x080		/* Priority data may be read.  */
# define POLLWRNORM	POLLOUT		/* Writing now will not block.  */
# define POLLWRBAND	0x100		/* Priority data may be written.  */
#endif

#ifdef __USE_GNU
/* These are extensions for Linux.  */
# define POLLMSG	0x400
# define POLLREMOVE	0x1000
# define POLLRDHUP	0x2000
#endif

/* 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.  */
Commit	Line	Data
04277e02	1	/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
8b10c19e UD	2	This file is part of the GNU C Library.
	3
	4	The GNU C Library is free software; you can redistribute it and/or
3214b89b AJ	5	modify it under the terms of the GNU Lesser General Public
	6	License as published by the Free Software Foundation; either
	7	version 2.1 of the License, or (at your option) any later version.
8b10c19e UD	8
	9	The GNU C Library is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3214b89b	12	Lesser General Public License for more details.
8b10c19e	13
3214b89b	14	You should have received a copy of the GNU Lesser General Public
ab84e3ff PE	15	License along with the GNU C Library. If not, see
ab84e3ff PE	16	<http://www.gnu.org/licenses/>. */
8b10c19e	17
90571408 UD	18	#ifndef _SYS_POLL_H
	19	# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
	20	#endif
8b10c19e UD	21
	22	/* Event types that can be polled for. These bits may be set in `events'
	23	to indicate the interesting event types; they will appear in `revents'
	24	to indicate the status of the file descriptor. */
	25	#define POLLIN 0x001 /* There is data to read. */
	26	#define POLLPRI 0x002 /* There is urgent data to read. */
	27	#define POLLOUT 0x004 /* Writing now will not block. */
	28
8ef2c3b0	29	#if defined __USE_XOPEN \|\| defined __USE_XOPEN2K8
8b10c19e UD	30	/* These values are defined in XPG4.2. */
	31	# define POLLRDNORM 0x040 /* Normal data may be read. */
	32	# define POLLRDBAND 0x080 /* Priority data may be read. */
	33	# define POLLWRNORM POLLOUT /* Writing now will not block. */
	34	# define POLLWRBAND 0x100 /* Priority data may be written. */
	35	#endif
	36
	37	#ifdef __USE_GNU
bfc23f5a	38	/* These are extensions for Linux. */
8b10c19e	39	# define POLLMSG 0x400
bfc23f5a DJ	40	# define POLLREMOVE 0x1000
bfc23f5a DJ	41	# define POLLRDHUP 0x2000
8b10c19e UD	42	#endif
	43
	44	/* Event types always implicitly polled for. These bits need not be set in
	45	`events', but they will appear in `revents' to indicate the status of
	46	the file descriptor. */
	47	#define POLLERR 0x008 /* Error condition. */
	48	#define POLLHUP 0x010 /* Hung up. */
	49	#define POLLNVAL 0x020 /* Invalid polling request. */