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/**
* @file
*
* @ingroup POSIXAPI
*
* @brief Get Configurable System Variables
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <rtems.h>
#include <rtems/seterr.h>
#include <rtems/libio_.h>
#include <sys/param.h>
/*
* 4.8.1 Get Configurable System Variables, P1003.1b-1993, p. 95
*/
long sysconf(
int name
)
{
switch ( name ) {
case _SC_CLK_TCK:
return (long) rtems_clock_get_ticks_per_second();
case _SC_OPEN_MAX:
return rtems_libio_number_iops;
case _SC_GETPW_R_SIZE_MAX:
return 1024;
case _SC_PAGESIZE:
return PAGE_SIZE;
case _SC_SYMLOOP_MAX:
return RTEMS_FILESYSTEM_SYMLOOP_MAX;
case _SC_NPROCESSORS_CONF:
return (long) rtems_configuration_get_maximum_processors();
case _SC_NPROCESSORS_ONLN:
return (long) rtems_scheduler_get_processor_maximum();
case _SC_POSIX_26_VERSION:
return (long) _POSIX_26_VERSION;
#if defined(__sparc__)
case 515: /* Solaris _SC_STACK_PROT */
return 0;
#endif
default:
rtems_set_errno_and_return_minus_one( EINVAL );
}
}
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