#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <rs_galois.h>
#include <liberasurecode_rs_vand.h>
#include <unistd.h>
#include <fcntl.h>

Functions
void	print_matrix (int *matrix, int rows, int cols)

void	square_matrix_multiply (int m1, int m2, int *prod, int n)

int	is_identity_matrix (int *matrix, int n)

int *	get_matrix_row (int *matrix, int row_idx, int num_cols)

void	copy_row (int from_matrix, int to_matrix, int from_row_idx, int to_row_idx, int num_cols)

int	is_missing (int *missing_idxs, int index_to_check)

int	create_decoding_matrix (int gen_matrix, int dec_matrix, int *missing_idxs, int k, int m)

void	init_liberasurecode_rs_vand (int k, int m)

void	deinit_liberasurecode_rs_vand ()

int *	create_non_systematic_vand_matrix (int k, int m)

void	swap_matrix_rows (int r1, int r2, int num_cols)

void	col_mult (int *matrix, int elem, int col_idx, int num_rows, int num_cols)

void	row_mult (int *matrix, int elem, int row_idx, int num_rows, int num_cols)

void	col_mult_and_add (int *matrix, int elem, int from_col, int to_col, int num_rows, int num_cols)

void	row_mult_and_add (int *matrix, int elem, int from_row, int to_row, int num_rows, int num_cols)

int	get_non_zero_diagonal (int *matrix, int row, int num_rows, int num_cols)

int *	make_systematic_matrix (int k, int m)

void	free_systematic_matrix (int *matrix)

int	gaussj_inversion (int matrix, int inverse, int n)

void	region_xor (char from_buf, char to_buf, int blocksize)

void	region_multiply (char from_buf, char to_buf, int mult, int xor, int blocksize)

void	region_dot_product (char *from_bufs, char to_buf, int *matrix_row, int num_entries, int blocksize)

int	liberasurecode_rs_vand_encode (int generator_matrix, char data, char *parity, int k, int m, int blocksize)

char **	get_first_k_available (char data, char parity, int *missing, int k)

int	liberasurecode_rs_vand_decode (int generator_matrix, char data, char parity, int k, int m, int missing, int blocksize, int rebuild_parity)

int	liberasurecode_rs_vand_reconstruct (int generator_matrix, char data, char parity, int k, int m, int missing, int destination_idx, int blocksize)

Function Documentation

◆ col_mult()

void col_mult	(	int *	matrix,
		int	elem,
		int	col_idx,
		int	num_rows,
		int	num_cols
	)

Definition at line 184 of file liberasurecode_rs_vand.c.

References rs_galois_mult().

Referenced by make_systematic_matrix().

◆ col_mult_and_add()

void col_mult_and_add	(	int *	matrix,
		int	elem,
		int	from_col,
		int	to_col,
		int	num_rows,
		int	num_cols
	)

Definition at line 204 of file liberasurecode_rs_vand.c.

References rs_galois_mult().

Referenced by make_systematic_matrix().

◆ copy_row()

void copy_row	(	int *	from_matrix,
		int *	to_matrix,
		int	from_row_idx,
		int	to_row_idx,
		int	num_cols
	)

Definition at line 99 of file liberasurecode_rs_vand.c.

References get_matrix_row().

Referenced by create_decoding_matrix().

◆ create_decoding_matrix()

int create_decoding_matrix	(	int *	gen_matrix,
		int *	dec_matrix,
		int *	missing_idxs,
		int	k,
		int	m
	)

Definition at line 119 of file liberasurecode_rs_vand.c.

References copy_row(), and is_missing().

Referenced by liberasurecode_rs_vand_decode(), and liberasurecode_rs_vand_reconstruct().

◆ create_non_systematic_vand_matrix()

int * create_non_systematic_vand_matrix	(	int	k,
		int	m
	)

Definition at line 145 of file liberasurecode_rs_vand.c.

References rs_galois_mult().

Referenced by make_systematic_matrix().

◆ deinit_liberasurecode_rs_vand()

void deinit_liberasurecode_rs_vand ( )

Definition at line 140 of file liberasurecode_rs_vand.c.

References rs_galois_deinit_tables().

◆ free_systematic_matrix()

void free_systematic_matrix ( int * matrix )

Definition at line 292 of file liberasurecode_rs_vand.c.

◆ gaussj_inversion()

int gaussj_inversion	(	int *	matrix,
		int *	inverse,
		int	n
	)

Definition at line 297 of file liberasurecode_rs_vand.c.

References get_non_zero_diagonal(), row_mult(), row_mult_and_add(), rs_galois_inverse(), and swap_matrix_rows().

Referenced by liberasurecode_rs_vand_decode(), and liberasurecode_rs_vand_reconstruct().

◆ get_first_k_available()

char ** get_first_k_available	(	char **	data,
		char **	parity,
		int *	missing,
		int	k
	)

Definition at line 414 of file liberasurecode_rs_vand.c.

Referenced by liberasurecode_rs_vand_decode(), and liberasurecode_rs_vand_reconstruct().

◆ get_matrix_row()

int * get_matrix_row	(	int *	matrix,
		int	row_idx,
		int	num_cols
	)

Definition at line 94 of file liberasurecode_rs_vand.c.

Referenced by copy_row().

◆ get_non_zero_diagonal()

int get_non_zero_diagonal	(	int *	matrix,
		int	row,
		int	num_rows,
		int	num_cols
	)

Definition at line 227 of file liberasurecode_rs_vand.c.

Referenced by gaussj_inversion(), and make_systematic_matrix().

◆ init_liberasurecode_rs_vand()

void init_liberasurecode_rs_vand	(	int	k,
		int	m
	)

Definition at line 135 of file liberasurecode_rs_vand.c.

References rs_galois_init_tables().

◆ is_identity_matrix()

int is_identity_matrix	(	int *	matrix,
		int	n
	)

Definition at line 73 of file liberasurecode_rs_vand.c.

◆ is_missing()

int is_missing	(	int *	missing_idxs,
		int	index_to_check
	)

Definition at line 107 of file liberasurecode_rs_vand.c.

Referenced by create_decoding_matrix(), and index_of_connected_parity().

◆ liberasurecode_rs_vand_decode()

int liberasurecode_rs_vand_decode	(	int *	generator_matrix,
		char **	data,
		char **	parity,
		int	k,
		int	m,
		int *	missing,
		int	blocksize,
		int	rebuild_parity
	)

Definition at line 428 of file liberasurecode_rs_vand.c.

References create_decoding_matrix(), gaussj_inversion(), get_first_k_available(), and region_dot_product().

◆ liberasurecode_rs_vand_encode()

int liberasurecode_rs_vand_encode	(	int *	generator_matrix,
		char **	data,
		char **	parity,
		int	k,
		int	m,
		int	blocksize
	)

Definition at line 401 of file liberasurecode_rs_vand.c.

References region_dot_product().

◆ liberasurecode_rs_vand_reconstruct()

int liberasurecode_rs_vand_reconstruct	(	int *	generator_matrix,
		char **	data,
		char **	parity,
		int	k,
		int	m,
		int *	missing,
		int	destination_idx,
		int	blocksize
	)