root/include/asm-x86/shmbuf.h

INCLUDED FROM

#ifndef ASM_X86__SHMBUF_H
#define ASM_X86__SHMBUF_H

/*
 * The shmid64_ds structure for x86 architecture.
 * Note extra padding because this structure is passed back and forth
 * between kernel and user space.
 *
 * Pad space on 32 bit is left for:
 * - 64-bit time_t to solve y2038 problem
 * - 2 miscellaneous 32-bit values
 *
 * Pad space on 64 bit is left for:
 * - 2 miscellaneous 64-bit values
 */

struct shmid64_ds {
        struct ipc64_perm       shm_perm;       /* operation perms */
        size_t                  shm_segsz;      /* size of segment (bytes) */
        __kernel_time_t         shm_atime;      /* last attach time */
#ifdef __i386__
        unsigned long           __unused1;
#endif
        __kernel_time_t         shm_dtime;      /* last detach time */
#ifdef __i386__
        unsigned long           __unused2;
#endif
        __kernel_time_t         shm_ctime;      /* last change time */
#ifdef __i386__
        unsigned long           __unused3;
#endif
        __kernel_pid_t          shm_cpid;       /* pid of creator */
        __kernel_pid_t          shm_lpid;       /* pid of last operator */
        unsigned long           shm_nattch;     /* no. of current attaches */
        unsigned long           __unused4;
        unsigned long           __unused5;
};

struct shminfo64 {
        unsigned long   shmmax;
        unsigned long   shmmin;
        unsigned long   shmmni;
        unsigned long   shmseg;
        unsigned long   shmall;
        unsigned long   __unused1;
        unsigned long   __unused2;
        unsigned long   __unused3;
        unsigned long   __unused4;
};

#endif /* ASM_X86__SHMBUF_H */