shmbuf.h
上传用户:lgb322
上传日期:2013-02-24
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文件大小:1k
- #ifndef _PARISC_SHMBUF_H
- #define _PARISC_SHMBUF_H
- /*
- * The shmid64_ds structure for parisc architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
- struct shmid64_ds {
- struct ipc64_perm shm_perm; /* operation perms */
- unsigned int __pad1;
- __kernel_time_t shm_atime; /* last attach time */
- unsigned int __pad2;
- __kernel_time_t shm_dtime; /* last detach time */
- unsigned int __pad3;
- __kernel_time_t shm_ctime; /* last change time */
- size_t shm_segsz; /* size of segment (bytes) */
- __kernel_pid_t shm_cpid; /* pid of creator */
- __kernel_pid_t shm_lpid; /* pid of last operator */
- unsigned int shm_nattch; /* no. of current attaches */
- unsigned int __unused1;
- unsigned int __unused2;
- };
- #ifdef __LP64__
- #warning shminfo64 is an undocumented struct
- /* The 'unsigned int' (formerly 'unsigned long') data types below will
- * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on
- * a wide kernel, but if some of these values are meant to contain pointers
- * they may need to be 'long long' instead. -PB
- */
- #endif
- struct shminfo64 {
- unsigned int shmmax;
- unsigned int shmmin;
- unsigned int shmmni;
- unsigned int shmseg;
- unsigned int shmall;
- unsigned int __unused1;
- unsigned int __unused2;
- unsigned int __unused3;
- unsigned int __unused4;
- };
- #endif /* _PARISC_SHMBUF_H */