mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 05:21:13 +00:00
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/* Copyright (C) 1995-2017 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sys/shm.h>
|
|
#include <stdarg.h>
|
|
#include <ipc_priv.h>
|
|
#include <sysdep.h>
|
|
#include <shlib-compat.h>
|
|
#include <errno.h>
|
|
|
|
|
|
#ifndef DEFAULT_VERSION
|
|
# define DEFAULT_VERSION GLIBC_2_2
|
|
#endif
|
|
|
|
|
|
/* Provide operations to control over shared memory segments. */
|
|
int
|
|
__new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
|
|
{
|
|
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
|
return INLINE_SYSCALL_CALL (shmctl, shmid, cmd | __IPC_64, buf);
|
|
#else
|
|
return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd | __IPC_64, 0,
|
|
buf);
|
|
#endif
|
|
}
|
|
versioned_symbol (libc, __new_shmctl, shmctl, DEFAULT_VERSION);
|
|
|
|
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
|
|
struct __old_shmid_ds
|
|
{
|
|
struct __old_ipc_perm shm_perm; /* operation permission struct */
|
|
int shm_segsz; /* size of segment in bytes */
|
|
__time_t shm_atime; /* time of last shmat() */
|
|
__time_t shm_dtime; /* time of last shmdt() */
|
|
__time_t shm_ctime; /* time of last change by shmctl() */
|
|
__ipc_pid_t shm_cpid; /* pid of creator */
|
|
__ipc_pid_t shm_lpid; /* pid of last shmop */
|
|
unsigned short int shm_nattch; /* number of current attaches */
|
|
unsigned short int __shm_npages; /* size of segment (pages) */
|
|
unsigned long int *__shm_pages; /* array of ptrs to frames -> SHMMAX */
|
|
struct vm_area_struct *__attaches; /* descriptors for attaches */
|
|
};
|
|
|
|
int
|
|
attribute_compat_text_section
|
|
__old_shmctl (int shmid, int cmd, struct __old_shmid_ds *buf)
|
|
{
|
|
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
|
return INLINE_SYSCALL_CALL (shmctl, shmid, cmd, buf);
|
|
#else
|
|
return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd, 0, buf);
|
|
#endif
|
|
}
|
|
compat_symbol (libc, __old_shmctl, shmctl, GLIBC_2_0);
|
|
#endif
|