shmbuf.h

来自「linux 内核源代码」· C头文件 代码 · 共 43 行

#ifndef _BFIN_SHMBUF_H
#define _BFIN_SHMBUF_H

/*
 * The shmid64_ds structure for bfin 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 */
	size_t shm_segsz;	/* size of segment (bytes) */
	__kernel_time_t shm_atime;	/* last attach time */
	unsigned long __unused1;
	__kernel_time_t shm_dtime;	/* last detach time */
	unsigned long __unused2;
	__kernel_time_t shm_ctime;	/* last change time */
	unsigned long __unused3;
	__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				/* _BFIN_SHMBUF_H */