1 struct semid_ds { 2 struct ipc_perm sem_perm; 3 time_t sem_otime; 4 time_t sem_ctime; 5 #if __BYTE_ORDER == __LITTLE_ENDIAN 6 unsigned short sem_nsems; 7 char __sem_nsems_pad[sizeof(long)-sizeof(short)]; 8 #else 9 char __sem_nsems_pad[sizeof(long)-sizeof(short)]; 10 unsigned short sem_nsems; 11 #endif 12 long __unused3; 13 long __unused4; 14 }; 15