shmget.c

Glibc 2.3.2源代码(解压后有100多M)

/* Copyright (C) 1995, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <[e-mail]>, August 1995.

   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 <sys/shm.h>
#include <ipc_priv.h>
#include <stdlib.h>		/* for definition of NULL */

#include <sysdep.h>
#include <sys/syscall.h>

/* Return an identifier for an shared memory segment of at least size SIZE
   which is associated with KEY.  */

int
shmget (key, size, shmflg)
     key_t key;
     size_t size;
     int shmflg;
{
  return INLINE_SYSCALL (ipc, 5, IPCOP_shmget, key, size, shmflg, NULL);
}