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glibc  2.9
semop.c
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00001 /* Copyright (C) 1995, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <errno.h>
00021 #include <sys/sem.h>
00022 #include <ipc_priv.h>
00023 
00024 #include <sysdep.h>
00025 #include <sys/syscall.h>
00026 #include <bp-checks.h>
00027 
00028 /* Perform user-defined atomical operation of array of semaphores.  */
00029 
00030 int
00031 semop (semid, sops, nsops)
00032      int semid;
00033      struct sembuf *sops;
00034      size_t nsops;
00035 {
00036   return INLINE_SYSCALL (ipc, 5, IPCOP_semop,
00037                       semid, (int) nsops, 0, CHECK_N (sops, nsops));
00038 }