From 503054c0dd57109017b36870c430dab00fccaa8b Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 4 Jul 1996 00:07:18 +0000 Subject: Wed Jul 3 16:29:41 1996 Roland McGrath * nss/getXXbyYY_r.c (REENTRANT_NAME): Cast FCT in __nss_next call. * sysdeps/generic/sbrk.c: Always call __brk (0) to update __curbrk. * malloc/malloc-size.c (malloc_usable_size): Renamed from malloc_object_allocation_size. * malloc/malloc.h: Fix decl. * sys/select.h: New file, wrapper header. * posix/sys/types.h [__USE_BSD]: Include ; remove fd_set, associated macros, and select decl. * sysdeps/posix/isfdtype.c: New file. Tue Jul 2 23:45:14 1996 Ulrich Drepper The latest Japanese proposal for POSIX locales renames the CHARMAP keyword in locale definition files to CHARCONV. * locale/programs/ld-ctype.c, locale/programs/locales.h: Rename function ctype_is_charmap to ctype_is_charconv. * locale/programs/locfile-kw.gperf: Replace charmap keyword with charconv. * locale/programs/locfile-token.h: Add definition of token charconv. * locale/programs/locfile.c: Recognize charconv keyword. Rename lables according to this. * locale/weight.h (get_weight): Cast constants to prevent warnings. * stdlib/strtod.c, stdlib/strtol.c, string/strcoll.c, string/strxfrm.c: Add some more casts to prevent signed<->unsigned warnings. New stuff described in P1003.1g. * misc/Makefile (headers): Add sys/select.h. (routines): Add pselect. * misc/sys/select.h: New file. Declare select functions and needed data types and macros. * sysdeps/generic/pselect.c: New file. Add generic implementation of pselect() function which uses select(). * posix/getconf.c: Recognize new variables from P1003.1g. * posix/posix1_lim.h: Define _POSIX_FD_SETSIZE, _POSIX_QLIMIT, _POSIX_HIWAT, and _POSIX_UIO_MAXIOV. * posix/unistd.h: Add description of the P1003.1g variables. * sysdeps/generic/confname.h: Define _SC_* values for new variables. * sysdeps/posix/fpathconf.c (fpathconf): Add handling of _PC_SOCK_MAXBUF. * sysdeps/stub/fpathconf.c (fpathconf): Ditto. * sysdeps/posix/sysconf.c (sysconf): Add handling of new P1003.1g variables. * sysdeps/stub/sysconf.c (sysconf): Ditto. * sysdeps/unix/sysv/linux/posix_opt.h: Define _POSIX_POLL and _POSIX_SELECT since Linux has this. * socket/Makefile (routines): Add isfdtype. * sysdeps/generic/sys/socket.h: Add prototype for isfdtype. * sysdeps/stub/isfdtype.c: New file. Stub implementation of isfdtype. * wcsmbs/wcrtomb.c (wcrtomb): Fix typo. --- misc/sys/select.h | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 misc/sys/select.h (limited to 'misc/sys/select.h') diff --git a/misc/sys/select.h b/misc/sys/select.h new file mode 100644 index 0000000000..ece1916c0d --- /dev/null +++ b/misc/sys/select.h @@ -0,0 +1,81 @@ +/* `fd_set' type and related macros, and `select'/`pselect' declarations. +Copyright (C) 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. */ + +/* POSIX 1003.1g: 6.2 Select from File Descriptor Sets */ + +#ifndef __SYS_SELECT_H + +#define __SYS_SELECT_H 1 +#include + +/* Get definition of needed basic types. */ +#include + +/* Get definition of timer specification structures. */ +/* XXX this is wrong. 1003.1gD6.1 says `struct timespec' + is defined by , and that is all. + However, since a program is required to include + before using select/pselect anyway, perhaps it doesn't matter. */ +#include + +__BEGIN_DECLS + +/* Representation of a set of file descriptors. */ +#define fd_set __fd_set + +/* Maximum number of file descriptors in `fd_set'. */ +#define FD_SETSIZE __FD_SETSIZE + +#ifdef __USE_MISC +/* Number of bits per word of `fd_set' (some code assumes this is 32). */ +#define NFDBITS __NFDBITS +#endif + + +/* Access macros for `fd_set'. */ +#define FD_SET(fd, fdsetp) __FD_SET ((fd), (fdsetp)) +#define FD_CLR(fd, fdsetp) __FD_CLR ((fd), (fdsetp)) +#define FD_ISSET(fd, fdsetp) __FD_ISSET ((fd), (fdsetp)) +#define FD_ZERO(fdsetp) __FD_ZERO (fdsetp) + + +/* Check the first NFDS descriptors each in READFDS (if not NULL) for read + readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS + (if not NULL) for exceptional conditions. If TIMEOUT is not NULL, time out + after waiting the interval specified therein. Returns the number of ready + descriptors, or -1 for errors. */ +extern int __select __P ((int __nfds, __fd_set *__readfds, + __fd_set *__writefds, __fd_set *__exceptfds, + struct timeval *__timeout)); +extern int select __P ((int __nfds, __fd_set *__readfds, + __fd_set *__writefds, __fd_set *__exceptfds, + struct timeval *__timeout)); + +/* Same as above only that the TIMEOUT value is given with higher + resolution. This version should be used. */ +extern int __pselect __P ((int __nfds, __fd_set *__readfds, + __fd_set *__writefds, __fd_set *__exceptfds, + struct timespec *__timeout)); +extern int pselect __P ((int __nfds, __fd_set *__readfds, + __fd_set *__writefds, __fd_set *__exceptfds, + struct timespec *__timeout)); + +__END_DECLS + +#endif /* sys/select.h */ -- cgit 1.4.1