shm.h File Reference

#include <linux/ipc.h>
#include <linux/errno.h>
#include <unistd.h>
#include <asm/shmbuf.h>

Go to the source code of this file.

Data Structures
struct	shmid_ds
struct	shminfo
struct	shm_info

Macros
#define	SHMMAX   0x2000000 /* max shared seg size (bytes) */
#define	SHMMIN   1 /* min shared seg size (bytes) */
#define	SHMMNI   4096 /* max num of segs system wide */
#define	SHMALL   (SHMMAX/getpagesize()*(SHMMNI/16))
#define	SHMSEG   SHMMNI /* max shared segs per process */
#define	SHM_R   0400 /* or S_IRUGO from <linux/stat.h> */
#define	SHM_W   0200 /* or S_IWUGO from <linux/stat.h> */
#define	SHM_RDONLY   010000 /* read-only access */
#define	SHM_RND   020000 /* round attach address to SHMLBA boundary */
#define	SHM_REMAP   040000 /* take-over region on attach */
#define	SHM_EXEC   0100000 /* execution access */
#define	SHM_LOCK   11
#define	SHM_UNLOCK   12
#define	SHM_STAT   13
#define	SHM_INFO   14

Macro Definition Documentation

#define SHM_EXEC   0100000 /* execution access */

Definition at line 50 of file shm.h.

#define SHM_INFO   14

Definition at line 58 of file shm.h.

#define SHM_LOCK   11

Definition at line 53 of file shm.h.

#define SHM_R   0400 /* or S_IRUGO from <linux/stat.h> */

Definition at line 43 of file shm.h.

#define SHM_RDONLY   010000 /* read-only access */

Definition at line 47 of file shm.h.

#define SHM_REMAP   040000 /* take-over region on attach */

Definition at line 49 of file shm.h.

#define SHM_RND   020000 /* round attach address to SHMLBA boundary */

Definition at line 48 of file shm.h.

#define SHM_STAT   13

Definition at line 57 of file shm.h.

#define SHM_UNLOCK   12

Definition at line 54 of file shm.h.

#define SHM_W   0200 /* or S_IWUGO from <linux/stat.h> */

Definition at line 44 of file shm.h.

#define SHMALL   (SHMMAX/getpagesize()*(SHMMNI/16))

Definition at line 19 of file shm.h.

#define SHMMAX   0x2000000 /* max shared seg size (bytes) */

Definition at line 15 of file shm.h.

#define SHMMIN   1 /* min shared seg size (bytes) */

Definition at line 16 of file shm.h.

#define SHMMNI   4096 /* max num of segs system wide */

Definition at line 17 of file shm.h.

#define SHMSEG   SHMMNI /* max shared segs per process */

Definition at line 21 of file shm.h.