glibc/io/sys/poll.h
Ulrich Drepper 8a4b65b469 update from main archive 961209
Tue Dec 10 02:17:31 1996  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/printf_fp.c (__guess_grouping): Fix of by one
	error in computation of number of groups.
	Patch sent by Harald Schreiber <Harald.Schreiber@post.rwth-aachen.de>.

Tue Dec 10 01:50:07 1996  Ulrich Drepper  <drepper@cygnus.com>

	* version.h: Set version to 1.99.

	* Make-dist (routines): Add malloc and new-malloc.

	* Makeconfig: Allow Makefiles to set $(CPPFLAGS-$(<F)) and
	$(CPPFLAGS-$(@F)) to be added to CPPFLAGS.
	Same for $(CFLAGS-$(@F)) and CFLAGS.

	* gmon/sys/gmon_out.h: Add __BEGIN_DECLS/__END_DECLS.  Unify
	layout.
	* io/sys/poll.h: Likewise.
	* sysdeps/stub/sys/ipb_buf.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sys/perm.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sys/vm86.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/ipc_buf.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/kdaemon.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/klog.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/module.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/mount.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/msq_buf.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/param.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/ptrace.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/reboot.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sem_buf.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/shm_buf.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/socketcall.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/swap.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysctl.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/timex.h: Likewise.
	* sysvipc/sys/sem.h: Likewise.
	* sysvipc/sys/shm.h: Likewise.

	* new-malloc/Makefile: Set CPPFLAGS-malloc.o.
	* new-malloc/malloc.c: Remove problem with 64 bits pointers.
	Add statistics for threads.
	* new-malloc/malloc.h: Likewise.
	* new-malloc/thread-m.h: Likewise.

	* time/strftime.c: Declare tzname if if HAVE_TZNAME is defined.

	* time/strptime.c: Update copyright.

Mon Dec  9 14:51:10 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Make-dist: Make sure both malloc directories get distributed.

Sun Dec  8 23:14:10 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/iogets.c (_IO_gets): Fix early returns to not leave the
	stream locked.

Sat Dec  7 22:08:09 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/sys/module.h: Enclose declarations in
	__BEGIN_DECLS/__END_DECLS.

Sat Dec  7 14:23:12 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/utmp_file.c: Consistently set file_offset to the position
	after the entry just read.
1996-12-10 03:08:06 +00:00

68 lines
2.6 KiB
C

/* Compatibility definitions for System V `poll' interface.
Copyright (C) 1994, 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SYS_POLL_H
#define _SYS_POLL_H 1
#include <features.h>
__BEGIN_DECLS
/* 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. */
};
/* 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 01 /* There is data to read. */
#define POLLPRI 02 /* There is urgent data to read. */
#define POLLOUT 04 /* Writing now will not block. */
/* Some aliases. */
#define POLLWRNORM POLLOUT
/* 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 010 /* Error condition. */
#define POLLHUP 020 /* Hung up. */
#define POLLNVAL 040 /* Invalid polling request. */
/* Canonical number of polling requests to read in at a time in poll. */
#define NPOLLFILE 30
/* 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 __P ((struct pollfd *__fds, unsigned long int __nfds,
int __timeout));
__END_DECLS
#endif /* _SYS_POLL_H */