sysvipc/test-sysvipc.h

   1 /* Basic definition for Sysv IPC test functions.
   2    Copyright (C) 2020-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _TEST_SYSV_H
  20 #define _TEST_SYSV_H
  21
  22 #include <sys/ipc.h>
  23 #include <sys/sem.h>
  24 #include <sys/msg.h>
  25 #include <sys/shm.h>
  26 #include <include/array_length.h>
  27
  28 /* Return the first invalid SysV IPC command from common shared
  29    between message queue, shared memory, and semaphore.  */
  30 static inline int
  31 first_common_invalid_cmd (void)
  32 {
  33   const int common_cmds[] = {
  34     IPC_RMID,
  35     IPC_SET,
  36     IPC_STAT,
  37     IPC_INFO,
  38   };
  39
  40   int invalid = 0;
  41   for (int i = 0; i < array_length (common_cmds); i++)
  42     {
  43       if (invalid == common_cmds[i])
  44         {
  45           invalid++;
  46           i = 0;
  47         }
  48     }
  49
  50   return invalid;
  51 }
  52
  53 /* Return the first invalid SysV IPC command for semaphore.  */
  54 static inline int
  55 first_sem_invalid_cmd (void)
  56 {
  57   const int sem_cmds[] = {
  58     GETPID,
  59     GETVAL,
  60     GETALL,
  61     GETNCNT,
  62     GETZCNT,
  63     SETVAL,
  64     SETALL,
  65     SEM_STAT,
  66     SEM_INFO,
  67 #ifdef SEM_STAT_ANY
  68     SEM_STAT_ANY,
  69 #endif
  70   };
  71
  72   int invalid = first_common_invalid_cmd ();
  73   for (int i = 0; i < array_length (sem_cmds); i++)
  74     {
  75       if (invalid == sem_cmds[i])
  76         {
  77           invalid++;
  78           i = 0;
  79         }
  80     }
  81
  82   return invalid;
  83 }
  84
  85 /* Return the first invalid SysV IPC command for message queue.  */
  86 static inline int
  87 first_msg_invalid_cmd (void)
  88 {
  89   const int msg_cmds[] = {
  90     MSG_STAT,
  91     MSG_INFO,
  92 #ifdef MSG_STAT_ANY
  93     MSG_STAT_ANY,
  94 #endif
  95   };
  96
  97   int invalid = first_common_invalid_cmd ();
  98   for (int i = 0; i < array_length (msg_cmds); i++)
  99     {
 100       if (invalid == msg_cmds[i])
 101         {
 102           invalid++;
 103           i = 0;
 104         }
 105     }
 106
 107   return invalid;
 108 }
 109
 110 /* Return the first invalid SysV IPC command for shared memory.  */
 111 static inline int
 112 first_shm_invalid_cmd (void)
 113 {
 114   const int shm_cmds[] = {
 115     SHM_STAT,
 116     SHM_INFO,
 117 #ifdef SHM_STAT_ANY
 118     SHM_STAT_ANY,
 119 #endif
 120     SHM_LOCK,
 121     SHM_UNLOCK
 122   };
 123
 124   int invalid = first_common_invalid_cmd ();
 125   for (int i = 0; i < array_length (shm_cmds); i++)
 126     {
 127       if (invalid == shm_cmds[i])
 128         {
 129           invalid++;
 130           i = 0;
 131         }
 132     }
 133
 134   return invalid;
 135 }
 136
 137 #endif /* _TEST_SYSV_H  */