#include <dlfcn.h>
#include <alg_sig.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Macros
#define	GALOIS_SINGLE_MULTIPLY "galois_single_multiply"

#define	GALOIS_UNINIT "galois_uninit_field"

Functions
galois_single_multiply_func	get_galois_multi_func (void *handle)

void	stub_galois_uninit_field (int w)

galois_uninit_field_func	get_galois_uninit_func (void *handle)

void *	get_jerasure_sohandle ()

int	load_gf_functions (void sohandle, struct jerasure_mult_routines routines)

static alg_sig_t *	init_alg_sig_w8 (void *jerasure_sohandle, int sig_len)

static alg_sig_t *	init_alg_sig_w16 (void *jerasure_sohandle, int sig_len)

alg_sig_t *	init_alg_sig (int sig_len, int gf_w)

void	destroy_alg_sig (alg_sig_t *alg_sig_handle)

static int	compute_w8_alg_sig_32 (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

static int	compute_w16_alg_sig_64 (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

static int	compute_w16_alg_sig_32 (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

static int	compute_alg_sig_32 (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

static int	compute_alg_sig_64 (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

int	compute_alg_sig (alg_sig_t alg_sig_handle, char buf, int len, char *sig)

Variables
int	valid_gf_w [] = { 8, 16, -1 }

int	valid_pairs [][2] = { { 8, 32}, {16, 32}, {16, 64}, {-1, -1} }

Macro Definition Documentation

#define GALOIS_SINGLE_MULTIPLY "galois_single_multiply"

Definition at line 30 of file alg_sig.c.

Referenced by get_galois_multi_func().

#define GALOIS_UNINIT "galois_uninit_field"

Definition at line 31 of file alg_sig.c.

Referenced by get_galois_uninit_func().

Function Documentation

int compute_alg_sig	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

Definition at line 425 of file alg_sig.c.

References compute_alg_sig_32(), and compute_alg_sig_64().

static int compute_alg_sig_32	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

static

Definition at line 406 of file alg_sig.c.

References compute_w16_alg_sig_32(), and compute_w8_alg_sig_32().

Referenced by compute_alg_sig().

static int compute_alg_sig_64	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

static

Definition at line 417 of file alg_sig.c.

References compute_w16_alg_sig_64().

Referenced by compute_alg_sig().

static int compute_w16_alg_sig_32	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

static

This is the loop to optimize. It is currently optimized enough : using Horner's alg., shortened mult. tables, and other tricks.

Definition at line 359 of file alg_sig.c.

Referenced by compute_alg_sig_32().

static int compute_w16_alg_sig_64	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

static

This is the loop to optimize. It is currently optimized enough : using Horner's alg., shortened mult. tables, and other tricks.

Definition at line 304 of file alg_sig.c.

Referenced by compute_alg_sig_64().

static int compute_w8_alg_sig_32	(	alg_sig_t *	alg_sig_handle,
		char *	buf,
		int	len,
		char *	sig
	)

static

This is the loop to optimize. It is currently optimized enough : using Horner's alg., shortened mult. tables, and other tricks.

Definition at line 275 of file alg_sig.c.

Referenced by compute_alg_sig_32().

void destroy_alg_sig ( alg_sig_t * alg_sig_handle )

Definition at line 246 of file alg_sig.c.

galois_single_multiply_func get_galois_multi_func ( void * handle )

Definition at line 36 of file alg_sig.c.

References GALOIS_SINGLE_MULTIPLY.

Referenced by load_gf_functions().

galois_uninit_field_func get_galois_uninit_func ( void * handle )

Definition at line 52 of file alg_sig.c.

References GALOIS_UNINIT.

Referenced by load_gf_functions().

void* get_jerasure_sohandle ( )

Definition at line 67 of file alg_sig.c.

Referenced by init_alg_sig().

alg_sig_t* init_alg_sig	(	int	sig_len,
		int	gf_w
	)

Definition at line 216 of file alg_sig.c.

References get_jerasure_sohandle(), init_alg_sig_w16(), init_alg_sig_w8(), and valid_pairs.

static alg_sig_t* init_alg_sig_w16	(	void *	jerasure_sohandle,
		int	sig_len
	)

static

Definition at line 153 of file alg_sig.c.

References load_gf_functions().

Referenced by init_alg_sig().

static alg_sig_t* init_alg_sig_w8	(	void *	jerasure_sohandle,
		int	sig_len
	)

static

Definition at line 96 of file alg_sig.c.

References load_gf_functions().

Referenced by init_alg_sig().

int load_gf_functions	(	void *	sohandle,
		struct jerasure_mult_routines *	routines
	)

It is possible that the underlying Jerasure implementation is old (pre-jerasure.org). If so, there is not an uninit function, so these tests will fail.

Since nothing is using alg_sig at the moment, we stub the uninit function to unblock the tests. Once we plug the internal GF functions into alg_sig, this can jsut go away.

Definition at line 72 of file alg_sig.c.

References get_galois_multi_func(), get_galois_uninit_func(), and stub_galois_uninit_field().

Referenced by init_alg_sig_w16(), and init_alg_sig_w8().

void stub_galois_uninit_field ( int w )

Definition at line 50 of file alg_sig.c.

Referenced by load_gf_functions().

Variable Documentation

int valid_gf_w[] = { 8, 16, -1 }

Definition at line 33 of file alg_sig.c.

int valid_pairs[][2] = { { 8, 32}, {16, 32}, {16, 64}, {-1, -1} }

Definition at line 34 of file alg_sig.c.

Referenced by init_alg_sig().

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation