liberasurecode_rs_vand.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include "erasurecode.h"
#include "erasurecode_backend.h"
#include "erasurecode_helpers.h"
#include "erasurecode_helpers_ext.h"

Go to the source code of this file.

Data Structures
struct	liberasurecode_rs_vand_descriptor

Macros
#define	LIBERASURECODE_RS_VAND_LIB_MAJOR   1
#define	LIBERASURECODE_RS_VAND_LIB_MINOR   0
#define	LIBERASURECODE_RS_VAND_LIB_REV   0
#define	LIBERASURECODE_RS_VAND_LIB_VER_STR   "1.0"
#define	LIBERASURECODE_RS_VAND_LIB_NAME   "liberasurecode_rs_vand"
#define	LIBERASURECODE_RS_VAND_SO_NAME   "liberasurecode_rs_vand" LIBERASURECODE_SO_SUFFIX ".so.1"

Typedefs
typedef int(*	liberasurecode_rs_vand_encode_func) (int *, char **, char **, int, int, int)
typedef int(*	liberasurecode_rs_vand_decode_func) (int *, char **, char **, int, int, int *, int, int)
typedef int(*	liberasurecode_rs_vand_reconstruct_func) (int *, char **, char **, int, int, int *, int, int)
typedef void(*	init_liberasurecode_rs_vand_func) (int, int)
typedef void(*	deinit_liberasurecode_rs_vand_func) ()
typedef void(*	free_systematic_matrix_func) (int *)
typedef int *(*	make_systematic_matrix_func) (int, int)

Functions
static int	liberasurecode_rs_vand_encode (void *desc, char **data, char **parity, int blocksize)
static int	liberasurecode_rs_vand_decode (void *desc, char **data, char **parity, int *missing_idxs, int blocksize)
static int	liberasurecode_rs_vand_reconstruct (void *desc, char **data, char **parity, int *missing_idxs, int destination_idx, int blocksize)
static int	liberasurecode_rs_vand_min_fragments (void *desc, int *missing_idxs, int *fragments_to_exclude, int *fragments_needed)
static void *	liberasurecode_rs_vand_init (struct ec_backend_args *args, void *backend_sohandle)
static int	liberasurecode_rs_vand_element_size (void *desc)
	Return the element-size, which is the number of bits stored on a given device, per codeword.
static int	liberasurecode_rs_vand_exit (void *desc)
static bool	liberasurecode_rs_vand_is_compatible_with (uint32_t version)

Variables
struct ec_backend_op_stubs	liberasurecode_rs_vand_ops
struct ec_backend	liberasurecode_rs_vand
struct ec_backend_common	backend_liberasurecode_rs_vand
struct ec_backend_op_stubs	liberasurecode_rs_vand_op_stubs

Macro Definition Documentation

LIBERASURECODE_RS_VAND_LIB_MAJOR

#define LIBERASURECODE_RS_VAND_LIB_MAJOR   1

Definition at line 35 of file liberasurecode_rs_vand.c.

LIBERASURECODE_RS_VAND_LIB_MINOR

#define LIBERASURECODE_RS_VAND_LIB_MINOR   0

Definition at line 36 of file liberasurecode_rs_vand.c.

LIBERASURECODE_RS_VAND_LIB_NAME

#define LIBERASURECODE_RS_VAND_LIB_NAME   "liberasurecode_rs_vand"

Definition at line 39 of file liberasurecode_rs_vand.c.

LIBERASURECODE_RS_VAND_LIB_REV

#define LIBERASURECODE_RS_VAND_LIB_REV   0

Definition at line 37 of file liberasurecode_rs_vand.c.

LIBERASURECODE_RS_VAND_LIB_VER_STR

#define LIBERASURECODE_RS_VAND_LIB_VER_STR   "1.0"

Definition at line 38 of file liberasurecode_rs_vand.c.

LIBERASURECODE_RS_VAND_SO_NAME

#define LIBERASURECODE_RS_VAND_SO_NAME   "liberasurecode_rs_vand" LIBERASURECODE_SO_SUFFIX ".so.1"

Definition at line 43 of file liberasurecode_rs_vand.c.

Typedef Documentation

deinit_liberasurecode_rs_vand_func

typedef void(* deinit_liberasurecode_rs_vand_func) ()

Definition at line 55 of file liberasurecode_rs_vand.c.

free_systematic_matrix_func

typedef void(* free_systematic_matrix_func) (int *)

Definition at line 56 of file liberasurecode_rs_vand.c.

init_liberasurecode_rs_vand_func

typedef void(* init_liberasurecode_rs_vand_func) (int, int)

Definition at line 54 of file liberasurecode_rs_vand.c.

liberasurecode_rs_vand_decode_func

typedef int(* liberasurecode_rs_vand_decode_func) (int *, char **, char **, int, int, int *, int, int)

Definition at line 52 of file liberasurecode_rs_vand.c.

liberasurecode_rs_vand_encode_func

typedef int(* liberasurecode_rs_vand_encode_func) (int *, char **, char **, int, int, int)

Definition at line 51 of file liberasurecode_rs_vand.c.

liberasurecode_rs_vand_reconstruct_func

typedef int(* liberasurecode_rs_vand_reconstruct_func) (int *, char **, char **, int, int, int *, int, int)

Definition at line 53 of file liberasurecode_rs_vand.c.

make_systematic_matrix_func

typedef int *(* make_systematic_matrix_func) (int, int)

Definition at line 57 of file liberasurecode_rs_vand.c.

Function Documentation

liberasurecode_rs_vand_decode()

int liberasurecode_rs_vand_decode ( void * desc, char ** data, char ** parity, int * missing_idxs, int blocksize )

static

Definition at line 95 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::k, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_decode, liberasurecode_rs_vand_descriptor::m, and liberasurecode_rs_vand_descriptor::matrix.

liberasurecode_rs_vand_element_size()

int liberasurecode_rs_vand_element_size ( void * desc )

static

Return the element-size, which is the number of bits stored on a given device, per codeword.

For Vandermonde, this is 'w'. For somthing like cauchy, this is packetsize * w.

Returns the size in bits!

Definition at line 262 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::w.

liberasurecode_rs_vand_encode()

int liberasurecode_rs_vand_encode ( void * desc, char ** data, char ** parity, int blocksize )

static

Definition at line 83 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::k, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_encode, liberasurecode_rs_vand_descriptor::m, and liberasurecode_rs_vand_descriptor::matrix.

liberasurecode_rs_vand_exit()

int liberasurecode_rs_vand_exit ( void * desc )

static

Definition at line 271 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::deinit_liberasurecode_rs_vand, liberasurecode_rs_vand_descriptor::free_systematic_matrix, and liberasurecode_rs_vand_descriptor::matrix.

liberasurecode_rs_vand_init()

void * liberasurecode_rs_vand_init ( struct ec_backend_args * args, void * backend_sohandle )

static

Definition at line 148 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::deinit_liberasurecode_rs_vand, liberasurecode_rs_vand_descriptor::free_systematic_matrix, liberasurecode_rs_vand_descriptor::init_liberasurecode_rs_vand, liberasurecode_rs_vand_descriptor::k, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_decode, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_encode, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_reconstruct, liberasurecode_rs_vand_descriptor::m, liberasurecode_rs_vand_descriptor::make_systematic_matrix, liberasurecode_rs_vand_descriptor::matrix, and liberasurecode_rs_vand_descriptor::w.

liberasurecode_rs_vand_is_compatible_with()

bool liberasurecode_rs_vand_is_compatible_with ( uint32_t version )

static

Definition at line 288 of file liberasurecode_rs_vand.c.

References backend_liberasurecode_rs_vand.

liberasurecode_rs_vand_min_fragments()

int liberasurecode_rs_vand_min_fragments ( void * desc, int * missing_idxs, int * fragments_to_exclude, int * fragments_needed )

static

Definition at line 121 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::k, and liberasurecode_rs_vand_descriptor::m.

liberasurecode_rs_vand_reconstruct()

int liberasurecode_rs_vand_reconstruct ( void * desc, char ** data, char ** parity, int * missing_idxs, int destination_idx, int blocksize )

static

Definition at line 108 of file liberasurecode_rs_vand.c.

References liberasurecode_rs_vand_descriptor::k, liberasurecode_rs_vand_descriptor::liberasurecode_rs_vand_reconstruct, liberasurecode_rs_vand_descriptor::m, and liberasurecode_rs_vand_descriptor::matrix.

Variable Documentation

backend_liberasurecode_rs_vand

struct ec_backend_common backend_liberasurecode_rs_vand

Initial value:

                       = {
    .id                         = EC_BACKEND_LIBERASURECODE_RS_VAND,
    .name                       = LIBERASURECODE_RS_VAND_LIB_NAME,
    .soname                     = LIBERASURECODE_RS_VAND_SO_NAME,
    .soversion                  = LIBERASURECODE_RS_VAND_LIB_VER_STR,
    .ops                        = &liberasurecode_rs_vand_op_stubs,
    .ec_backend_version         = _VERSION(LIBERASURECODE_RS_VAND_LIB_MAJOR,
                                           LIBERASURECODE_RS_VAND_LIB_MINOR,
                                           LIBERASURECODE_RS_VAND_LIB_REV),
}

Definition at line 49 of file liberasurecode_rs_vand.c.

Referenced by liberasurecode_rs_vand_is_compatible_with().

liberasurecode_rs_vand

struct ec_backend liberasurecode_rs_vand

Definition at line 48 of file liberasurecode_rs_vand.c.

liberasurecode_rs_vand_op_stubs

struct ec_backend_op_stubs liberasurecode_rs_vand_op_stubs

Initial value:

                         = {
    .INIT                       = liberasurecode_rs_vand_init,
    .EXIT                       = liberasurecode_rs_vand_exit,
    .ENCODE                     = liberasurecode_rs_vand_encode,
    .DECODE                     = liberasurecode_rs_vand_decode,
    .FRAGSNEEDED                = liberasurecode_rs_vand_min_fragments,
    .RECONSTRUCT                = liberasurecode_rs_vand_reconstruct,
    .ELEMENTSIZE                = liberasurecode_rs_vand_element_size,
    .ISCOMPATIBLEWITH           = liberasurecode_rs_vand_is_compatible_with,
    .GETMETADATASIZE            = get_backend_metadata_size_zero,
    .GETENCODEOFFSET            = get_encode_offset_zero,
}

Definition at line 292 of file liberasurecode_rs_vand.c.

liberasurecode_rs_vand_ops

struct ec_backend_op_stubs liberasurecode_rs_vand_ops

Definition at line 47 of file liberasurecode_rs_vand.c.