sys/kern/kern_posix4_mib.c

   1 /*-
   2  * Copyright (c) 1998
   3  *      HD Associates, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by HD Associates, Inc
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/posix4/posix4_mib.c,v 1.3.2.1 2000/08/03 01:09:59 peter Exp $
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/queue.h>
  38 #include <sys/sysctl.h>
  39 #include <sys/posix4.h>
  40
  41 static int facility[CTL_P1003_1B_MAXID - 1];
  42
  43 /* OID_AUTO isn't working with sysconf(3).  I guess I'd have to
  44  * modify it to do a lookup by name from the index.
  45  * For now I've left it a top-level sysctl.
  46  */
  47
  48 SYSCTL_DECL(_p1003_1b);
  49
  50 #define P1B_SYSCTL(num, name, desc)  \
  51 SYSCTL_INT(_p1003_1b, num, \
  52         name, CTLFLAG_RD, facility + num - 1, 0, desc);
  53
  54 P1B_SYSCTL(CTL_P1003_1B_ASYNCHRONOUS_IO, asynchronous_io,
  55     "POSIX Asynchronous input/output support");
  56 P1B_SYSCTL(CTL_P1003_1B_MAPPED_FILES, mapped_files,
  57     "POSIX Memory mapped file support");
  58 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK, memlock,
  59     "Support for POSIX process memory locking");
  60 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK_RANGE, memlock_range,
  61     "Support for POSIX range memory locking");
  62 P1B_SYSCTL(CTL_P1003_1B_MEMORY_PROTECTION, memory_protection,
  63     "POSIX Memory protection support");
  64 P1B_SYSCTL(CTL_P1003_1B_MESSAGE_PASSING, message_passing,
  65     "Support for POSIX message passing");
  66 P1B_SYSCTL(CTL_P1003_1B_PRIORITIZED_IO, prioritized_io,
  67     "POSIX prioritized input/output support");
  68 P1B_SYSCTL(CTL_P1003_1B_PRIORITY_SCHEDULING, priority_scheduling,
  69     "Support for POSIX process scheduling");
  70 P1B_SYSCTL(CTL_P1003_1B_REALTIME_SIGNALS, realtime_signals,
  71     "POSIX real time signal support");
  72 P1B_SYSCTL(CTL_P1003_1B_SEMAPHORES, semaphores,
  73     "POSIX semaphores support");
  74 P1B_SYSCTL(CTL_P1003_1B_FSYNC, fsync,
  75     "Support of POSIX file synchronization");
  76 P1B_SYSCTL(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, shared_memory_objects,
  77     "Support of POSIX share memory objects");
  78 P1B_SYSCTL(CTL_P1003_1B_SYNCHRONIZED_IO, synchronized_io,
  79     "POSIX synchronized input/output support");
  80 P1B_SYSCTL(CTL_P1003_1B_TIMERS, timers,
  81     "POSIX timers support");
  82 P1B_SYSCTL(CTL_P1003_1B_AIO_LISTIO_MAX, aio_listio_max,
  83     "Maximum number of operations in a single list I/O call");
  84 P1B_SYSCTL(CTL_P1003_1B_AIO_MAX, aio_max,
  85     "Maximum outstanding AIO operations");
  86 P1B_SYSCTL(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, aio_prio_delta_max,
  87     "Maximum AIO priority deviation from the own scheduling priority");
  88 P1B_SYSCTL(CTL_P1003_1B_DELAYTIMER_MAX, delaytimer_max,
  89     "Maximum timer expiration overruns");
  90 P1B_SYSCTL(CTL_P1003_1B_PAGESIZE, pagesize,
  91     "Size of a page in bytes");
  92 P1B_SYSCTL(CTL_P1003_1B_RTSIG_MAX, rtsig_max,
  93     "Maximum number of realtime signals reserved for application use");
  94 P1B_SYSCTL(CTL_P1003_1B_SEM_NSEMS_MAX, sem_nsems_max,
  95     "Maximum number of semaphores per process");
  96 P1B_SYSCTL(CTL_P1003_1B_SIGQUEUE_MAX, sigqueue_max,
  97     "Maximum number of queued signals per process");
  98 P1B_SYSCTL(CTL_P1003_1B_TIMER_MAX, timer_max,
  99     "Maximum number of timers per process");
 100
 101 /* p31b_setcfg: Set the configuration
 102  */
 103 void p31b_setcfg(int num, int value)
 104 {
 105         if (num >= 1 && num < CTL_P1003_1B_MAXID)
 106                 facility[num - 1] = value;
 107 }