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authorRoland McGrath <roland@gnu.org>1996-07-04 00:07:18 +0000
committerRoland McGrath <roland@gnu.org>1996-07-04 00:07:18 +0000
commit503054c0dd57109017b36870c430dab00fccaa8b (patch)
treee3788a147156c19d4cf38cc8da0bfcf8d3c6c109 /misc/sys
parent175b633d811d6427fb9206c2bed6aa49f8500b36 (diff)
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Wed Jul 3 16:29:41 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>cvs/libc-960705cvs/libc-960704
* 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 <sys/select.h>; remove fd_set, associated macros, and select decl. * sysdeps/posix/isfdtype.c: New file. Tue Jul 2 23:45:14 1996 Ulrich Drepper <drepper@cygnus.com> 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.
Diffstat (limited to 'misc/sys')
-rw-r--r--misc/sys/select.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/misc/sys/select.h b/misc/sys/select.h
new file mode 100644
index 0000000..ece1916
--- /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 <sys/select.h> */
+
+#ifndef __SYS_SELECT_H
+
+#define __SYS_SELECT_H 1
+#include <features.h>
+
+/* Get definition of needed basic types. */
+#include <gnu/types.h>
+
+/* Get definition of timer specification structures. */
+/* XXX this is wrong. 1003.1gD6.1 says `struct timespec'
+ is defined by <sys/select.h>, and that is all.
+ However, since a program is required to include <sys/time.h>
+ before using select/pselect anyway, perhaps it doesn't matter. */
+#include <sys/time.h>
+
+__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 */