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[BZ #1535]

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* sysdeps/unix/get_child_max.c: New file.
	* posix/get_child_max.c: New file.
	* posix/Makefile (routines): Add it.
	* include/sys/sysinfo.h (__get_child_max): Declare it.
	* sysdeps/posix/sysconf.c (__sysconf) [! CHILD_MAX]: Use it.
This commit is contained in:
Roland McGrath 2006-01-08 09:39:29 +00:00
parent 9b12134354
commit aeb2153cd6
6 changed files with 81 additions and 4 deletions
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7
ChangeLog
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@ -1,5 +1,12 @@
2006-01-08 Roland McGrath <roland@redhat.com>
[BZ #1535]
* sysdeps/unix/get_child_max.c: New file.
* posix/get_child_max.c: New file.
* posix/Makefile (routines): Add it.
* include/sys/sysinfo.h (__get_child_max): Declare it.
* sysdeps/posix/sysconf.c (__sysconf) [! CHILD_MAX]: Use it.
* sysdeps/unix/sysv/linux/futimes.c [!__NR_fcntl && __NR_fcntl64]: Use
fcntl64 syscall instead.

3
include/sys/sysinfo.h
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@ -15,4 +15,7 @@ extern long int __get_phys_pages (void);
/* Return number of available physical pages of memory in the system. */
extern long int __get_avphys_pages (void);
/* Return maximum number of processes this real user ID can have. */
extern long int __get_child_max (void);
#endif /* sys/sysinfo.h */

3
posix/Makefile
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@ -65,7 +65,8 @@ routines := \
spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni \
spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
posix_madvise
posix_madvise \
get_child_max
include ../Makeconfig

29
posix/get_child_max.c Normal file
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@ -0,0 +1,29 @@
/* Get POSIX {CHILD_MAX} run-time limit value. Stub version (no limit).
Copyright (C) 2006 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <limits.h>
#include <sys/sysinfo.h>
#ifndef CHILD_MAX
long int
__get_child_max (void)
{
return -1;
}
#endif

6
sysdeps/posix/sysconf.c
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@ -1,5 +1,5 @@
/* Copyright (C) 1991,1993,1995-1997,1999-2003,2004
Free Software Foundation, Inc.
/* Copyright (C) 1991,1993,1995-1997,1999-2003,2004,2006
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
@ -68,7 +68,7 @@ __sysconf (name)
#ifdef CHILD_MAX
return CHILD_MAX;
#else
return -1;
return __get_child_max ();
#endif
case _SC_CLK_TCK:

37
sysdeps/unix/get_child_max.c Normal file
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@ -0,0 +1,37 @@
/* Get POSIX {CHILD_MAX} run-time limit value. Unix version.
Copyright (C) 2006 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <limits.h>
#include <sys/sysinfo.h>
#include <sys/resource.h>
#ifndef CHILD_MAX
long int
__get_child_max (void)
{
# ifdef RLIMIT_NPROC
struct rlimit limit;
if (__getrlimit (RLIMIT_NPROC, &limit) == 0
&& limit.rlim_cur != RLIM_INFINITY)
return limit.rlim_cur;
# endif
return -1;
}
#endif