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71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/* Copyright (C) 1995-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <sys/msg.h>
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#include <ipc_priv.h>
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#include <sysdep.h>
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#include <string.h>
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#include <sys/syscall.h>
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#include <shlib-compat.h>
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#include <kernel-features.h>
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struct __old_msqid_ds
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{
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struct __old_ipc_perm msg_perm; /* structure describing operation permission */
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struct msg *__msg_first; /* pointer to first message on queue */
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struct msg *__msg_last; /* pointer to last message on queue */
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__time_t msg_stime; /* time of last msgsnd command */
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__time_t msg_rtime; /* time of last msgrcv command */
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__time_t msg_ctime; /* time of last change */
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struct wait_queue *__wwait; /* ??? */
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struct wait_queue *__rwait; /* ??? */
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unsigned short int __msg_cbytes; /* current number of bytes on queue */
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unsigned short int msg_qnum; /* number of messages currently on queue */
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unsigned short int msg_qbytes; /* max number of bytes allowed on queue */
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__ipc_pid_t msg_lspid; /* pid of last msgsnd() */
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__ipc_pid_t msg_lrpid; /* pid of last msgrcv() */
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};
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/* Allows to control internal state and destruction of message queue
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objects. */
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
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int __old_msgctl (int, int, struct __old_msqid_ds *);
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#endif
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int __new_msgctl (int, int, struct msqid_ds *);
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
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int
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attribute_compat_text_section
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__old_msgctl (int msqid, int cmd, struct __old_msqid_ds *buf)
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{
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return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, buf);
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}
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compat_symbol (libc, __old_msgctl, msgctl, GLIBC_2_0);
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#endif
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int
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__new_msgctl (int msqid, int cmd, struct msqid_ds *buf)
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{
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return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd | __IPC_64, 0, buf);
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}
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versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2);
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