_WCRTLINK long sysconf( int name )
{
int ret;
ret = -1;
switch( name ) {
case _SC_ARG_MAX:
ret = ARG_MAX;
break;
case _SC_CHILD_MAX:
ret = __sysconf_rlimit_int( RLIMIT_NPROC );
break;
case _SC_CLK_TCK:
ret = SYS_CLK_TCK;
break;
case _SC_NGROUPS_MAX:
ret = NGROUPS_MAX;
break;
case _SC_OPEN_MAX:
ret = __sysconf_rlimit_int( RLIMIT_NOFILE );
break;
case _SC_JOB_CONTROL:
case _SC_SAVED_IDS:
case _SC_REALTIME_SIGNALS:
/* Linux supports job control, saved ids, realtime...*/
ret = 1;
break;
case _SC_VERSION:
/* We'll report that we're trying to conform
* to POSIX.1 Sept. 2008
*/
ret = 200809;
break;
case _SC_STREAM_MAX:
/* There is no limit on streams */
ret = -1;
break;
case _SC_TZNAME_MAX:
ret = TZNAME_MAX;
break;
case _SC_PAGESIZE:
#ifdef PAGE_SIZE
ret = PAGE_SIZE;
#else
_RWD_errno = EINVAL;
ret = -1;
#endif
break;
case _SC_PHYS_PAGES:
case _SC_AVPHYS_PAGES:
ret = __sysconf_pages( name );
break;
case _SC_NPROCESSORS_CONF:
case _SC_NPROCESSORS_ONLN:
ret = __sysconf_nprocessors();
break;
case _SC_SOMAXCONN:
ret = (long)__sysconf_somaxconn();
break;
case _SC_THREAD_ATTR_STACKADDR:
case _SC_THREAD_ATTR_STACKSIZE:
case _SC_MONOTONIC_CLOCK:
ret = (long)1;
break;
case _SC_THREAD_STACK_MIN:
/* We don't actually have one, but we'll
* assume one page
*/
ret = (long)PAGE_SIZE;
break;
case _SC_THREAD_PRIORITY_SCHEDULING:
case _SC_THREAD_PROCESS_SHARED:
ret = (long)0;
break;
default:
_RWD_errno = EINVAL;
break;
}
return( ret );
}
_WCRTLINK long sysconf( int name )
{
int ret;
ret = -1;
switch( name ) {
case _SC_ARG_MAX:
ret = ARG_MAX;
break;
case _SC_CHILD_MAX:
ret = __sysconf_rlimit_int( RLIMIT_NPROC );
break;
case _SC_CLK_TCK:
ret = SYS_CLK_TCK;
break;
case _SC_NGROUPS_MAX:
ret = NGROUPS_MAX;
break;
case _SC_OPEN_MAX:
ret = __sysconf_rlimit_int( RLIMIT_NOFILE );
break;
case _SC_JOB_CONTROL:
case _SC_SAVED_IDS:
case _SC_REALTIME_SIGNALS:
/* Linux supports job control, saved ids, realtime...*/
ret = 1;
break;
case _SC_VERSION:
/* We'll report that we're trying to conform
* to POSIX.1 Sept. 2008
*/
ret = 200809;
break;
case _SC_STREAM_MAX:
/* There is no limit on streams */
ret = -1;
break;
case _SC_TZNAME_MAX:
ret = TZNAME_MAX;
break;
case _SC_PAGESIZE:
#ifdef PAGE_SIZE
ret = PAGE_SIZE;
#else
_RWD_errno = EINVAL;
ret = -1;
#endif
break;
case _SC_PHYS_PAGES:
case _SC_AVPHYS_PAGES:
ret = __sysconf_pages( name );
break;
case _SC_NPROCESSORS_CONF:
case _SC_NPROCESSORS_ONLN:
ret = __sysconf_nprocessors();
break;
default:
_RWD_errno = EINVAL;
break;
}
return( ret );
}