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dff8da6b | 1 | /* Copyright (C) 1995-2024 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
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5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
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8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
0482576e | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
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17 | |
18 | #ifndef _SYS_SEM_H | |
19 | # error "Never include <bits/sem.h> directly; use <sys/sem.h> instead." | |
20 | #endif | |
21 | ||
22 | #include <sys/types.h> | |
05332ac3 | 23 | #include <bits/timesize.h> |
246a53d3 | 24 | #include <bits/types/struct_semid_ds.h> |
47f24c21 | 25 | #include <bits/types/struct_semid64_ds.h> |
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26 | |
27 | /* Flags for `semop'. */ | |
28 | #define SEM_UNDO 0x1000 /* undo the operation on exit */ | |
29 | ||
30 | /* Commands for `semctl'. */ | |
31 | #define GETPID 11 /* get sempid */ | |
32 | #define GETVAL 12 /* get semval */ | |
33 | #define GETALL 13 /* get all semval's */ | |
34 | #define GETNCNT 14 /* get semncnt */ | |
35 | #define GETZCNT 15 /* get semzcnt */ | |
36 | #define SETVAL 16 /* set semval */ | |
37 | #define SETALL 17 /* set all semval's */ | |
38 | ||
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39 | /* The user should define a union like the following to use it for arguments |
40 | for `semctl'. | |
41 | ||
42 | union semun | |
43 | { | |
44 | int val; <= value for SETVAL | |
45 | struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET | |
46 | unsigned short int *array; <= array for GETALL & SETALL | |
47 | struct seminfo *__buf; <= buffer for IPC_INFO | |
48 | }; | |
49 | ||
50 | Previous versions of this file used to define this union but this is | |
51 | incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether | |
52 | one must define the union or not. */ | |
53 | #define _SEM_SEMUN_UNDEFINED 1 | |
54 | ||
55 | #ifdef __USE_MISC | |
56 | ||
57 | /* ipcs ctl cmds */ | |
58 | # define SEM_STAT 18 | |
59 | # define SEM_INFO 19 | |
176c7fee | 60 | # define SEM_STAT_ANY 20 |
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61 | |
62 | struct seminfo | |
63 | { | |
64 | int semmap; | |
65 | int semmni; | |
66 | int semmns; | |
67 | int semmnu; | |
68 | int semmsl; | |
69 | int semopm; | |
70 | int semume; | |
71 | int semusz; | |
72 | int semvmx; | |
73 | int semaem; | |
74 | }; | |
75 | ||
76 | #endif /* __USE_MISC */ |