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/* Get file-specific information about a file.
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 <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sysdep.h>
#include <time.h>
#include <unistd.h>
#include <hp-timing.h>
#include <sys/sysctl.h>
static long int posix_sysconf (int name);
/* Get the value of the system variable NAME. */
long int
__sysconf (int name)
{
int request[2];
int value;
size_t len = sizeof(value);
switch(name)
{
case _SC_CPUTIME:
case _SC_THREAD_CPUTIME:
{
clockid_t clock_id;
/* try whether we have a syscall available */
if ( ENOSYS != INLINE_SYSCALL(clock_getcpuclockid2, 3, 0, CPUCLOCK_WHICH_TID, &clock_id))
return 200809L;
else
return -1;
}
case _SC_NGROUPS_MAX:
request[0] = CTL_KERN;
request[1] = KERN_NGROUPS;
if (__sysctl(request, 2, &value, &len, NULL, 0) == -1)
return NGROUPS_MAX;
return (long)value;
case _SC_ARG_MAX:
request[0] = CTL_KERN;
request[1] = KERN_ARGMAX;
if (__sysctl(request, 2, &value, &len, NULL, 0) == -1)
return ARG_MAX;
return (long)value;
}
return posix_sysconf (name);
}
/* Now the POSIX version. */
#undef __sysconf
#define __sysconf static posix_sysconf
#include <sysdeps/posix/sysconf.c>
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