memif_private.h File Reference

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Data Structures
struct	memif_region_t
struct	memif_queue_t
struct	memif_msg_queue_elt
struct	memif_conn_run_args_t
struct	memif_connection
struct	memif_list_elt_t
struct	memif_socket_t
struct	libmemif_main_t

Macros
#define	MEMIF_NAME_LEN   32
#define	MEMIF_DEFAULT_SOCKET_DIR   "/run/vpp"
#define	MEMIF_DEFAULT_SOCKET_FILENAME   "memif.sock"
#define	MEMIF_DEFAULT_RING_SIZE   1024
#define	MEMIF_DEFAULT_LOG2_RING_SIZE   10
#define	MEMIF_DEFAULT_RX_QUEUES   1
#define	MEMIF_DEFAULT_TX_QUEUES   1
#define	MEMIF_DEFAULT_BUFFER_SIZE   2048
#define	MEMIF_MAX_M2S_RING   255
#define	MEMIF_MAX_S2M_RING   255
#define	MEMIF_MAX_REGION   255
#define	MEMIF_MAX_LOG2_RING_SIZE   14
#define	MEMIF_MAX_FDS   512
#define	memif_min(a, b)   (((a) < (b)) ? (a) : (b))
#define	EXPECT_TRUE(x)   __builtin_expect((x),1)
#define	EXPECT_FALSE(x)   __builtin_expect((x),0)
#define	DBG(...)
#define	MEMIF_CONNECTION_FLAG_WRITE   (1 << 0)
#define	F_LINUX_SPECIFIC_BASE   1024
#define	MFD_ALLOW_SEALING   0x0002U
#define	F_ADD_SEALS   (F_LINUX_SPECIFIC_BASE + 9)
#define	F_GET_SEALS   (F_LINUX_SPECIFIC_BASE + 10)
#define	F_SEAL_SEAL   0x0001 /* prevent further seals from being set */
#define	F_SEAL_SHRINK   0x0002 /* prevent file from shrinking */
#define	F_SEAL_GROW   0x0004 /* prevent file from growing */
#define	F_SEAL_WRITE   0x0008 /* prevent writes */

Typedefs
typedef struct memif_msg_queue_elt	memif_msg_queue_elt_t
typedef struct memif_connection	memif_connection_t
typedef int()	memif_fn(memif_connection_t *conn)

Functions
int	memif_connect1 (memif_connection_t *c)
int	memif_init_regions_and_queues (memif_connection_t *c)
int	memif_disconnect_internal (memif_connection_t *c)
int	memif_syscall_error_handler (int err_code)
int	add_list_elt (memif_list_elt_t *e, memif_list_elt_t **list, uint16_t *len)
int	get_list_elt (memif_list_elt_t **e, memif_list_elt_t *list, uint16_t len, int key)
int	free_list_elt (memif_list_elt_t *list, uint16_t len, int key)
static int	memfd_create (const char *name, unsigned int flags)
static void *	memif_get_buffer (memif_connection_t *conn, memif_ring_t *ring, uint16_t index)

Variables
libmemif_main_t	libmemif_main
int	memif_epfd

Macro Definition Documentation

DBG

#define DBG

(

...

)

Definition at line 65 of file memif_private.h.

EXPECT_FALSE

#define EXPECT_FALSE

(

x

)

__builtin_expect((x),0)

Definition at line 56 of file memif_private.h.

EXPECT_TRUE

#define EXPECT_TRUE

(

x

)

__builtin_expect((x),1)

Definition at line 55 of file memif_private.h.

F_ADD_SEALS

#define F_ADD_SEALS   (F_LINUX_SPECIFIC_BASE + 9)

Definition at line 252 of file memif_private.h.

F_GET_SEALS

#define F_GET_SEALS   (F_LINUX_SPECIFIC_BASE + 10)

Definition at line 253 of file memif_private.h.

F_LINUX_SPECIFIC_BASE

#define F_LINUX_SPECIFIC_BASE   1024

Definition at line 244 of file memif_private.h.

F_SEAL_GROW

#define F_SEAL_GROW   0x0004 /* prevent file from growing */

Definition at line 257 of file memif_private.h.

F_SEAL_SEAL

#define F_SEAL_SEAL   0x0001 /* prevent further seals from being set */

Definition at line 255 of file memif_private.h.

F_SEAL_SHRINK

#define F_SEAL_SHRINK   0x0002 /* prevent file from shrinking */

Definition at line 256 of file memif_private.h.

F_SEAL_WRITE

#define F_SEAL_WRITE   0x0008 /* prevent writes */

Definition at line 258 of file memif_private.h.

MEMIF_CONNECTION_FLAG_WRITE

#define MEMIF_CONNECTION_FLAG_WRITE   (1 << 0)

Definition at line 146 of file memif_private.h.

MEMIF_DEFAULT_BUFFER_SIZE

#define MEMIF_DEFAULT_BUFFER_SIZE   2048

Definition at line 44 of file memif_private.h.

MEMIF_DEFAULT_LOG2_RING_SIZE

#define MEMIF_DEFAULT_LOG2_RING_SIZE   10

Definition at line 41 of file memif_private.h.

MEMIF_DEFAULT_RING_SIZE

#define MEMIF_DEFAULT_RING_SIZE   1024

Definition at line 40 of file memif_private.h.

MEMIF_DEFAULT_RX_QUEUES

#define MEMIF_DEFAULT_RX_QUEUES   1

Definition at line 42 of file memif_private.h.

MEMIF_DEFAULT_SOCKET_DIR

#define MEMIF_DEFAULT_SOCKET_DIR   "/run/vpp"

Definition at line 38 of file memif_private.h.

MEMIF_DEFAULT_SOCKET_FILENAME

#define MEMIF_DEFAULT_SOCKET_FILENAME   "memif.sock"

Definition at line 39 of file memif_private.h.

MEMIF_DEFAULT_TX_QUEUES

#define MEMIF_DEFAULT_TX_QUEUES   1

Definition at line 43 of file memif_private.h.

MEMIF_MAX_FDS

#define MEMIF_MAX_FDS   512

Definition at line 51 of file memif_private.h.

MEMIF_MAX_LOG2_RING_SIZE

#define MEMIF_MAX_LOG2_RING_SIZE   14

Definition at line 49 of file memif_private.h.

MEMIF_MAX_M2S_RING

#define MEMIF_MAX_M2S_RING   255

Definition at line 46 of file memif_private.h.

MEMIF_MAX_REGION

#define MEMIF_MAX_REGION   255

Definition at line 48 of file memif_private.h.

MEMIF_MAX_S2M_RING

#define MEMIF_MAX_S2M_RING   255

Definition at line 47 of file memif_private.h.

memif_min

#define memif_min	(		a,
			b
	)		(((a) < (b)) ? (a) : (b))

Definition at line 53 of file memif_private.h.

MEMIF_NAME_LEN

#define MEMIF_NAME_LEN   32

Definition at line 34 of file memif_private.h.

MFD_ALLOW_SEALING

#define MFD_ALLOW_SEALING   0x0002U

Definition at line 248 of file memif_private.h.

Typedef Documentation

memif_connection_t

typedef struct memif_connection memif_connection_t

Definition at line 102 of file memif_private.h.

memif_fn

typedef int() memif_fn(memif_connection_t *conn)

Definition at line 105 of file memif_private.h.

memif_msg_queue_elt_t

typedef struct memif_msg_queue_elt memif_msg_queue_elt_t

Function Documentation

add_list_elt()

int add_list_elt	(	memif_list_elt_t *	e,
		memif_list_elt_t **	list,
		uint16_t *	len
	)

Definition at line 319 of file main.c.

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free_list_elt()

int free_list_elt	(	memif_list_elt_t *	list,
		uint16_t	len,
		int	key
	)

Definition at line 377 of file main.c.

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get_list_elt()

int get_list_elt	(	memif_list_elt_t **	e,
		memif_list_elt_t *	list,
		uint16_t	len,
		int	key
	)

Definition at line 354 of file main.c.

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memfd_create()

static int memfd_create ( const char *  name, unsigned int  flags  )

inlinestatic

Definition at line 229 of file memif_private.h.

memif_connect1()

int memif_connect1

(

memif_connection_t *

c

)

Definition at line 1309 of file main.c.

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memif_disconnect_internal()

int memif_disconnect_internal

(

memif_connection_t *

c

)

Definition at line 1115 of file main.c.

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memif_get_buffer()

static void* memif_get_buffer ( memif_connection_t *  conn, memif_ring_t *  ring, uint16_t  index  )

inlinestatic

Definition at line 236 of file memif_private.h.

memif_init_regions_and_queues()

int memif_init_regions_and_queues

(

memif_connection_t *

c

)

Definition at line 1534 of file main.c.

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memif_syscall_error_handler()

int memif_syscall_error_handler

(

int

err_code

)

Definition at line 204 of file main.c.

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Variable Documentation

libmemif_main

libmemif_main_t libmemif_main

Definition at line 68 of file main.c.

memif_epfd

int memif_epfd

Definition at line 69 of file main.c.