mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
9ebaabeaac
It avoids regressions on possible future commands that might require additional libc support. The downside is new commands added by newer kernels will need further glibc support. Checked on x86_64-linux-gnu and i686-linux-gnu (Linux v4.15 and v5.4).
138 lines
2.8 KiB
C
138 lines
2.8 KiB
C
/* Basic definition for Sysv IPC test functions.
|
|
Copyright (C) 2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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/>. */
|
|
|
|
#ifndef _TEST_SYSV_H
|
|
#define _TEST_SYSV_H
|
|
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>
|
|
#include <sys/msg.h>
|
|
#include <sys/shm.h>
|
|
#include <include/array_length.h>
|
|
|
|
/* Return the first invalid SysV IPC command from common shared
|
|
between message queue, shared memory, and semaphore. */
|
|
static inline int
|
|
first_common_invalid_cmd (void)
|
|
{
|
|
const int common_cmds[] = {
|
|
IPC_RMID,
|
|
IPC_SET,
|
|
IPC_STAT,
|
|
IPC_INFO,
|
|
};
|
|
|
|
int invalid = 0;
|
|
for (int i = 0; i < array_length (common_cmds); i++)
|
|
{
|
|
if (invalid == common_cmds[i])
|
|
{
|
|
invalid++;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
return invalid;
|
|
}
|
|
|
|
/* Return the first invalid SysV IPC command for semaphore. */
|
|
static inline int
|
|
first_sem_invalid_cmd (void)
|
|
{
|
|
const int sem_cmds[] = {
|
|
GETPID,
|
|
GETVAL,
|
|
GETALL,
|
|
GETNCNT,
|
|
GETZCNT,
|
|
SETVAL,
|
|
SETALL,
|
|
SEM_STAT,
|
|
SEM_INFO,
|
|
#ifdef SEM_STAT_ANY
|
|
SEM_STAT_ANY,
|
|
#endif
|
|
};
|
|
|
|
int invalid = first_common_invalid_cmd ();
|
|
for (int i = 0; i < array_length (sem_cmds); i++)
|
|
{
|
|
if (invalid == sem_cmds[i])
|
|
{
|
|
invalid++;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
return invalid;
|
|
}
|
|
|
|
/* Return the first invalid SysV IPC command for message queue. */
|
|
static inline int
|
|
first_msg_invalid_cmd (void)
|
|
{
|
|
const int msg_cmds[] = {
|
|
MSG_STAT,
|
|
MSG_INFO,
|
|
#ifdef MSG_STAT_ANY
|
|
MSG_STAT_ANY,
|
|
#endif
|
|
};
|
|
|
|
int invalid = first_common_invalid_cmd ();
|
|
for (int i = 0; i < array_length (msg_cmds); i++)
|
|
{
|
|
if (invalid == msg_cmds[i])
|
|
{
|
|
invalid++;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
return invalid;
|
|
}
|
|
|
|
/* Return the first invalid SysV IPC command for shared memory. */
|
|
static inline int
|
|
first_shm_invalid_cmd (void)
|
|
{
|
|
const int shm_cmds[] = {
|
|
SHM_STAT,
|
|
SHM_INFO,
|
|
#ifdef SHM_STAT_ANY
|
|
SHM_STAT_ANY,
|
|
#endif
|
|
SHM_LOCK,
|
|
SHM_UNLOCK
|
|
};
|
|
|
|
int invalid = first_common_invalid_cmd ();
|
|
for (int i = 0; i < array_length (shm_cmds); i++)
|
|
{
|
|
if (invalid == shm_cmds[i])
|
|
{
|
|
invalid++;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
return invalid;
|
|
}
|
|
|
|
#endif /* _TEST_SYSV_H */
|