glibc/sysdeps/unix/sysv/linux/shmdt.c

36 lines
1.2 KiB
C

/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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, see
<https://www.gnu.org/licenses/>. */
#include <sys/msg.h>
#include <ipc_priv.h>
#include <sysdep.h>
#include <errno.h>
/* Detach shared memory segment starting at address specified by SHMADDR
from the caller's data segment. */
int
shmdt (const void *shmaddr)
{
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (shmdt, shmaddr);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_shmdt, 0, 0, 0, shmaddr);
#endif
}