/*      $NetBSD: sem.h,v 1.7 2019/02/21 03:37:19 mrg Exp $      */

/*
 * SVID compatible sem.h file
 *
 * Author: Daniel Boulet
 */

#ifndef _COMPAT_SYS_SEM_H_
#define _COMPAT_SYS_SEM_H_

#include <compat/sys/ipc.h>

struct semid_ds14 {
        struct ipc_perm14 sem_perm;     /* operation permission struct */
        struct __sem    *sem_base;      /* pointer to first semaphore in set */
        unsigned short  sem_nsems;      /* number of sems in set */
        int32_t         sem_otime;      /* last operation time */
        long            sem_pad1;       /* SVABI/386 says I need this here */
        int32_t         sem_ctime;      /* last change time */
                                        /* Times measured in secs since */
                                        /* 00:00:00 GMT, Jan. 1, 1970 */
        long            sem_pad2;       /* SVABI/386 says I need this here */
        long            sem_pad3[4];    /* SVABI/386 says I need this here */
};

struct semid_ds13 {
        struct ipc_perm sem_perm;       /* operation permission structure */
        unsigned short  sem_nsems;      /* number of semaphores in set */
        int32_t         sem_otime;      /* last semop() time */
        int32_t         sem_ctime;      /* last time changed by semctl() */

        /*
         * These members are private and used only in the internal
         * implementation of this interface.
         */
        struct __sem    *_sem_base;     /* pointer to first semaphore in set */
};

/* Warning: 64-bit structure padding is needed here */
struct semid_ds_sysctl50 {
        struct  ipc_perm_sysctl sem_perm;
        int16_t sem_nsems;
        int16_t pad2;
        int32_t pad3;
        int32_t sem_otime;
        int32_t sem_ctime;
};

struct sem_sysctl_info50 {
        struct  seminfo seminfo;
        struct  semid_ds_sysctl50 semids[1];
};

__BEGIN_DECLS
static __inline void    __semid_ds14_to_native(const struct semid_ds14 *, struct semid_ds *);
static __inline void    __native_to_semid_ds14(const struct semid_ds *, struct semid_ds14 *);
static __inline void    __semid_ds13_to_native(const struct semid_ds13 *, struct semid_ds *);
static __inline void    __native_to_semid_ds13(const struct semid_ds *, struct semid_ds13 *);

static __inline void
__semid_ds13_to_native(const struct semid_ds13  *osembuf, struct semid_ds *sembuf)
{

        sembuf->sem_perm = osembuf->sem_perm;

#define CVT(x)  sembuf->x = osembuf->x
        CVT(sem_nsems);
        CVT(sem_otime);
        CVT(sem_ctime);
#undef CVT
}

static __inline void
__native_to_semid_ds13(const struct semid_ds *sembuf, struct semid_ds13 *osembuf)
{

        memset(osembuf, 0, sizeof *osembuf);
        osembuf->sem_perm = sembuf->sem_perm;

#define CVT(x)  osembuf->x = sembuf->x
#define CVTI(x) osembuf->x = (int)sembuf->x
        CVT(sem_nsems);
        CVTI(sem_otime);
        CVTI(sem_ctime);
#undef CVT
#undef CVTI
}

static __inline void
__semid_ds14_to_native(const struct semid_ds14  *osembuf, struct semid_ds *sembuf)
{

        __ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm);

#define CVT(x)  sembuf->x = osembuf->x
        CVT(sem_nsems);
        CVT(sem_otime);
        CVT(sem_ctime);
#undef CVT
}

static __inline void
__native_to_semid_ds14(const struct semid_ds *sembuf, struct semid_ds14 *osembuf)
{

        memset(osembuf, 0, sizeof *osembuf);
        __native_to_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm);

#define CVT(x)  osembuf->x = sembuf->x
#define CVTI(x) osembuf->x = (int)sembuf->x
        CVT(sem_nsems);
        CVTI(sem_otime);
        CVTI(sem_ctime);
#undef CVT
#undef CVTI
}

int     semctl(int, int, int, ...);
int     __semctl(int, int, int, union __semun *);
int     __semctl13(int, int, int, ...);
int     __semctl14(int, int, int, ...);
int     __semctl50(int, int, int, ...);
int     ____semctl50(int, int, int, ...);
__END_DECLS

#endif /* !_COMPAT_SYS_SEM_H_ */