shm.h File Reference

Internal Support for POSIX Shared Memory. More...

#include <rtems/score/objectdata.h>
#include <rtems/score/threadq.h>
#include <sys/types.h>

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Data Structures
struct	POSIX_Shm_Object
	Encapsulation for the storage and manipulation of shm objects. More...
struct	POSIX_Shm_Object_operations
	Operations on POSIX Shared Memory Objects. More...
struct	POSIX_Shm_Control
	Control for a POSIX Shared Memory Object. More...

Macros
#define	POSIX_SHM_INFORMATION_DEFINE(max)
	Macro to define the objects information for the POSIX Shared Memory objects.

Typedefs
typedef struct POSIX_Shm_Object_operations	POSIX_Shm_Object_operations

Functions
int	_POSIX_Shm_Object_create_from_workspace (POSIX_Shm_Object *shm_obj, size_t size)
	object_create operation for shm objects stored in RTEMS Workspace.
int	_POSIX_Shm_Object_delete_from_workspace (POSIX_Shm_Object *shm_obj)
	object_delete operation for shm objects stored in RTEMS Workspace.
int	_POSIX_Shm_Object_resize_from_workspace (POSIX_Shm_Object *shm_obj, size_t size)
	object_resize operation for shm objects stored in RTEMS Workspace.
int	_POSIX_Shm_Object_read_from_workspace (POSIX_Shm_Object *shm_obj, void *buf, size_t count)
	object_read operation for shm objects stored in RTEMS Workspace.
void *	_POSIX_Shm_Object_mmap_from_workspace (POSIX_Shm_Object *shm_obj, size_t len, int prot, off_t off)
	object_mmap operation for shm objects stored in RTEMS Workspace.
int	_POSIX_Shm_Object_create_from_heap (POSIX_Shm_Object *shm_obj, size_t size)
	object_create operation for shm objects stored in C program heap.
int	_POSIX_Shm_Object_delete_from_heap (POSIX_Shm_Object *shm_obj)
	object_delete operation for shm objects stored in C program heap.
int	_POSIX_Shm_Object_resize_from_heap (POSIX_Shm_Object *shm_obj, size_t size)
	object_resize operation for shm objects stored in C program heap.
int	_POSIX_Shm_Object_read_from_heap (POSIX_Shm_Object *shm_obj, void *buf, size_t count)
	object_read operation for shm objects stored in C program heap.
void *	_POSIX_Shm_Object_mmap_from_heap (POSIX_Shm_Object *shm_obj, size_t len, int prot, off_t off)
	object_mmap operation for shm objects stored in C program heap.

Variables
const POSIX_Shm_Object_operations	_POSIX_Shm_Object_operations
Objects_Information	_POSIX_Shm_Information
	The POSIX Shared Memory objects information.

Detailed Description

Internal Support for POSIX Shared Memory.