#define SHMLBA 4096
struct shmid_ds {
struct ipc_perm shm_perm;
size_t shm_segsz;
time_t shm_atime;
time_t shm_dtime;
time_t shm_ctime;
pid_t shm_cpid;
pid_t shm_lpid;
unsigned long shm_nattch;
unsigned long __pad1;
unsigned long __pad2;
};
struct shminfo {
unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
};
struct shm_info {
int __used_ids;
unsigned long shm_tot, shm_rss, shm_swp;
unsigned long __swap_attempts, __swap_successes;
};