mh_sha256_perf.c

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#include <stdio.h>
#include <stdlib.h>
#include "mh_sha256.h"
#include "test.h"

//#define CACHED_TEST
#ifdef CACHED_TEST
// Loop many times over same
# define TEST_LEN     16*1024
# define TEST_LOOPS   20000
# define TEST_TYPE_STR "_warm"
#else
// Uncached test.  Pull from large mem base.
# define TEST_LEN     16*1024*1024
# define TEST_LOOPS   100
# define TEST_TYPE_STR "_cold"
#endif

#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif
#define TEST_MEM   TEST_LEN

#define str(s) #s
#define xstr(s) str(s)

#define _FUNC_TOKEN(func, type)		func##type
#define FUNC_TOKEN(func, type)		_FUNC_TOKEN(func, type)

#ifndef MH_SHA256_FUNC_TYPE
#define	MH_SHA256_FUNC_TYPE
#endif

#define TEST_UPDATE_FUNCTION		FUNC_TOKEN(mh_sha256_update, MH_SHA256_FUNC_TYPE)
#define TEST_FINAL_FUNCTION		FUNC_TOKEN(mh_sha256_finalize, MH_SHA256_FUNC_TYPE)

#define CHECK_RETURN(state)		do{ \
					  if((state) != MH_SHA256_CTX_ERROR_NONE){ \
					    printf("The mh_sha256 function is failed.\n"); \
					    return 1; \
					  } \
					}while(0)

// Generates pseudo-random data
void rand_buffer(uint8_t * buf, long buffer_size)
{
	long i;
	for (i = 0; i < buffer_size; i++)
		buf[i] = rand();
}

void dump(char *buf, int len)
{
	int i;
	for (i = 0; i < len;) {
		printf(" %2x", 0xff & buf[i++]);
		if (i % 32 == 0)
			printf("\n");
	}
	if (i % 32 != 0)
		printf("\n");
}

int compare_digests(uint32_t hash_base[SHA256_DIGEST_WORDS],
		    uint32_t hash_test[SHA256_DIGEST_WORDS])
{
	int i;
	int mh_sha256_fail = 0;

	for (i = 0; i < SHA256_DIGEST_WORDS; i++) {
		if (hash_test[i] != hash_base[i])
			mh_sha256_fail++;
	}

	if (mh_sha256_fail) {
		printf("mh_sha256 fail test\n");
		printf("base: ");
		dump((char *)hash_base, 32);
		printf("ref: ");
		dump((char *)hash_test, 32);
	}

	return mh_sha256_fail;
}

int main(int argc, char *argv[])
{
	int i, fail = 0;
	uint32_t hash_test[SHA256_DIGEST_WORDS], hash_base[SHA256_DIGEST_WORDS];
	uint8_t *buff = NULL;
	struct mh_sha256_ctx *update_ctx_test = NULL, *update_ctx_base = NULL;
	struct perf start, stop;

	printf(xstr(TEST_UPDATE_FUNCTION) "_perf:\n");

	buff = malloc(TEST_LEN);
	update_ctx_test = malloc(sizeof(*update_ctx_test));
	update_ctx_base = malloc(sizeof(*update_ctx_base));

	if (buff == NULL || update_ctx_base == NULL || update_ctx_test == NULL) {
		printf("malloc failed test aborted\n");
		return -1;
	}
	// Rand test1
	rand_buffer(buff, TEST_LEN);

	// mh_sha256 base version
	mh_sha256_init(update_ctx_base);
	mh_sha256_update_base(update_ctx_base, buff, TEST_LEN);
	mh_sha256_finalize_base(update_ctx_base, hash_base);

	perf_start(&start);
	for (i = 0; i < TEST_LOOPS / 10; i++) {
		mh_sha256_init(update_ctx_base);
		mh_sha256_update_base(update_ctx_base, buff, TEST_LEN);
		mh_sha256_finalize_base(update_ctx_base, hash_base);
	}
	perf_stop(&stop);
	printf("mh_sha256_update_base" TEST_TYPE_STR ": ");
	perf_print(stop, start, (long long)TEST_MEM * i);

	//Update feature test
	CHECK_RETURN(mh_sha256_init(update_ctx_test));
	CHECK_RETURN(TEST_UPDATE_FUNCTION(update_ctx_test, buff, TEST_LEN));
	CHECK_RETURN(TEST_FINAL_FUNCTION(update_ctx_test, hash_test));

	perf_start(&start);
	for (i = 0; i < TEST_LOOPS; i++) {
		CHECK_RETURN(mh_sha256_init(update_ctx_test));
		CHECK_RETURN(TEST_UPDATE_FUNCTION(update_ctx_test, buff, TEST_LEN));
		CHECK_RETURN(TEST_FINAL_FUNCTION(update_ctx_test, hash_test));
	}
	perf_stop(&stop);
	printf(xstr(TEST_UPDATE_FUNCTION) TEST_TYPE_STR ": ");
	perf_print(stop, start, (long long)TEST_MEM * i);

	// Check results
	fail = compare_digests(hash_base, hash_test);

	if (fail) {
		printf("Fail size=%d\n", TEST_LEN);
		return -1;
	}

	if (fail)
		printf("Test failed function test%d\n", fail);
	else
		printf("Pass func check\n");

	return fail;
}