sys/compat/sys/sem.h

   1 /*      $NetBSD: sem.h,v 1.5 2009/01/11 02:45:50 christos 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
  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
  75 __native_to_semid_ds13(const struct semid_ds *sembuf, struct semid_ds13 *osembuf)
  76 {
  77
  78         osembuf->sem_perm = sembuf->sem_perm;
  79
  80 #define CVT(x)  osembuf->x = sembuf->x
  81 #define CVTI(x) osembuf->x = (int)sembuf->x
  82         CVT(sem_nsems);
  83         CVTI(sem_otime);
  84         CVTI(sem_ctime);
  85 #undef CVT
  86 #undef CVTI
  87 }
  88
  89 static __inline void
  90 __semid_ds14_to_native(const struct semid_ds14  *osembuf, struct semid_ds *sembuf)
  91 {
  92
  93         __ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm);
  94
  95 #define CVT(x)  sembuf->x = osembuf->x
  96         CVT(sem_nsems);
  97         CVT(sem_otime);
  98         CVT(sem_ctime);
  99 #undef CVT
 100 }
 101
 102 static __inline void
 103 __native_to_semid_ds14(const struct semid_ds *sembuf, struct semid_ds14 *osembuf)
 104 {
 105
 106         __native_to_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm);
 107
 108 #define CVT(x)  osembuf->x = sembuf->x
 109 #define CVTI(x) osembuf->x = (int)sembuf->x
 110         CVT(sem_nsems);
 111         CVTI(sem_otime);
 112         CVTI(sem_ctime);
 113 #undef CVT
 114 #undef CVTI
 115 }
 116
 117 int     semctl(int, int, int, ...);
 118 int     __semctl(int, int, int, union __semun *);
 119 int     __semctl13(int, int, int, ...);
 120 int     __semctl14(int, int, int, ...);
 121 int     __semctl50(int, int, int, ...);
 122 int     ____semctl50(int, int, int, ...);
 123 __END_DECLS
 124
 125 #endif /* !_COMPAT_SYS_SEM_H_ */