1 /* $NetBSD: sem.h,v 1.7 2019/02/21 03:37:19 mrg Exp $ */
2
3 /*
4 * SVID compatible sem.h file
5 *
6 * Author: Daniel Boulet
7 */
8
9 #ifndef _COMPAT_SYS_SEM_H_
10 #define _COMPAT_SYS_SEM_H_
11
12 #include <compat/sys/ipc.h>
13
14 struct semid_ds14 {
15 struct ipc_perm14 sem_perm; /* operation permission struct */
16 struct __sem *sem_base; /* pointer to first semaphore in set */
17 unsigned short sem_nsems; /* number of sems in set */
18 int32_t sem_otime; /* last operation time */
19 long sem_pad1; /* SVABI/386 says I need this here */
20 int32_t sem_ctime; /* last change time */
21 /* Times measured in secs since */
22 /* 00:00:00 GMT, Jan. 1, 1970 */
23 long sem_pad2; /* SVABI/386 says I need this here */
24 long sem_pad3[4]; /* SVABI/386 says I need this here */
25 };
26
27 struct semid_ds13 {
28 struct ipc_perm sem_perm; /* operation permission structure */
29 unsigned short sem_nsems; /* number of semaphores in set */
30 int32_t sem_otime; /* last semop() time */
31 int32_t sem_ctime; /* last time changed by semctl() */
32
33 /*
34 * These members are private and used only in the internal
35 * implementation of this interface.
36 */
37 struct __sem *_sem_base; /* pointer to first semaphore in set */
38 };
39
40 /* Warning: 64-bit structure padding is needed here */
41 struct semid_ds_sysctl50 {
42 struct ipc_perm_sysctl sem_perm;
43 int16_t sem_nsems;
44 int16_t pad2;
45 int32_t pad3;
46 int32_t sem_otime;
47 int32_t sem_ctime;
48 };
49
50 struct sem_sysctl_info50 {
51 struct seminfo seminfo;
52 struct semid_ds_sysctl50 semids[1];
53 };
54
55 __BEGIN_DECLS
56 static __inline void __semid_ds14_to_native(const struct semid_ds14 *, struct semid_ds *);
57 static __inline void __native_to_semid_ds14(const struct semid_ds *, struct semid_ds14 *);
58 static __inline void __semid_ds13_to_native(const struct semid_ds13 *, struct semid_ds *);
59 static __inline void __native_to_semid_ds13(const struct semid_ds *, struct semid_ds13 *);
60
61 static __inline void
__semid_ds13_to_native(const struct semid_ds13 * osembuf,struct semid_ds * sembuf)62 __semid_ds13_to_native(const struct semid_ds13 *osembuf, struct semid_ds *sembuf)
63 {
64
65 sembuf->sem_perm = osembuf->sem_perm;
66
67 #define CVT(x) sembuf->x = osembuf->x
68 CVT(sem_nsems);
69 CVT(sem_otime);
70 CVT(sem_ctime);
71 #undef CVT
72 }
73
74 static __inline void
__native_to_semid_ds13(const struct semid_ds * sembuf,struct semid_ds13 * osembuf)75 __native_to_semid_ds13(const struct semid_ds *sembuf, struct semid_ds13 *osembuf)
76 {
77
78 memset(osembuf, 0, sizeof *osembuf);
79 osembuf->sem_perm = sembuf->sem_perm;
80
81 #define CVT(x) osembuf->x = sembuf->x
82 #define CVTI(x) osembuf->x = (int)sembuf->x
83 CVT(sem_nsems);
84 CVTI(sem_otime);
85 CVTI(sem_ctime);
86 #undef CVT
87 #undef CVTI
88 }
89
90 static __inline void
__semid_ds14_to_native(const struct semid_ds14 * osembuf,struct semid_ds * sembuf)91 __semid_ds14_to_native(const struct semid_ds14 *osembuf, struct semid_ds *sembuf)
92 {
93
94 __ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm);
95
96 #define CVT(x) sembuf->x = osembuf->x
97 CVT(sem_nsems);
98 CVT(sem_otime);
99 CVT(sem_ctime);
100 #undef CVT
101 }
102
103 static __inline void
__native_to_semid_ds14(const struct semid_ds * sembuf,struct semid_ds14 * osembuf)104 __native_to_semid_ds14(const struct semid_ds *sembuf, struct semid_ds14 *osembuf)
105 {
106
107 memset(osembuf, 0, sizeof *osembuf);
108 __native_to_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm);
109
110 #define CVT(x) osembuf->x = sembuf->x
111 #define CVTI(x) osembuf->x = (int)sembuf->x
112 CVT(sem_nsems);
113 CVTI(sem_otime);
114 CVTI(sem_ctime);
115 #undef CVT
116 #undef CVTI
117 }
118
119 int semctl(int, int, int, ...);
120 int __semctl(int, int, int, union __semun *);
121 int __semctl13(int, int, int, ...);
122 int __semctl14(int, int, int, ...);
123 int __semctl50(int, int, int, ...);
124 int ____semctl50(int, int, int, ...);
125 __END_DECLS
126
127 #endif /* !_COMPAT_SYS_SEM_H_ */
128