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#include <stdio.h>
#include <stdlib.h>
#include <openssl/sha.h>
#include "sha512_mb.h"
#include "test.h"

// Set number of outstanding jobs
#define TEST_BUFS 32

#ifdef CACHED_TEST
// Loop many times over same data
#  define TEST_LEN     4*1024
#  define TEST_LOOPS   1000
#  define TEST_TYPE_STR "_warm"
#else
// Uncached test.  Pull from large mem base.
#  define GT_L3_CACHE  32*1024*1024	/* some number > last level cache */
#  define TEST_LEN     (GT_L3_CACHE / TEST_BUFS)
#  define TEST_LOOPS   10
#  define TEST_TYPE_STR "_cold"
#endif

#define TEST_MEM TEST_LEN * TEST_BUFS * TEST_LOOPS

/* Reference digest global to reduce stack usage */
static uint8_t digest_ssl[TEST_BUFS][8 * SHA512_DIGEST_NWORDS];

inline uint64_t byteswap64(uint64_t x)
{
#if defined (__ICC)
	return _bswap64(x);
#elif defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
	return __builtin_bswap64(x);
#else
	return (((x & (0xffull << 0)) << 56)
		| ((x & (0xffull << 8)) << 40)
		| ((x & (0xffull << 16)) << 24)
		| ((x & (0xffull << 24)) << 8)
		| ((x & (0xffull << 32)) >> 8)
		| ((x & (0xffull << 40)) >> 24)
		| ((x & (0xffull << 48)) >> 40)
		| ((x & (0xffull << 56)) >> 56));
#endif
}

int main(void)
{
	SHA512_HASH_CTX_MGR *mgr = NULL;
	SHA512_HASH_CTX ctxpool[TEST_BUFS];
	unsigned char *bufs[TEST_BUFS];
	uint32_t i, j, t, fail = 0;
	struct perf start, stop;

	for (i = 0; i < TEST_BUFS; i++) {
		bufs[i] = (unsigned char *)calloc((size_t) TEST_LEN, 1);
		if (bufs[i] == NULL) {
			printf("calloc failed test aborted\n");
			return 1;
		}
		// Init ctx contents
		hash_ctx_init(&ctxpool[i]);
		ctxpool[i].user_data = (void *)((uint64_t) i);
	}

	posix_memalign((void *)&mgr, 16, sizeof(SHA512_HASH_CTX_MGR));
	sha512_ctx_mgr_init(mgr);

	// Start OpenSSL tests
	perf_start(&start);
	for (t = 0; t < TEST_LOOPS; t++) {
		for (i = 0; i < TEST_BUFS; i++)
			SHA512(bufs[i], TEST_LEN, digest_ssl[i]);
	}
	perf_stop(&stop);

	printf("sha512_openssl" TEST_TYPE_STR ": ");
	perf_print(stop, start, (long long)TEST_LEN * i * t);

	// Start mb tests
	perf_start(&start);
	for (t = 0; t < TEST_LOOPS; t++) {
		for (i = 0; i < TEST_BUFS; i++)
			sha512_ctx_mgr_submit(mgr,
					      &ctxpool[i], bufs[i], TEST_LEN, HASH_ENTIRE);

		while (sha512_ctx_mgr_flush(mgr)) ;
	}
	perf_stop(&stop);

	printf("multibinary_sha512" TEST_TYPE_STR ": ");
	perf_print(stop, start, (long long)TEST_LEN * i * t);

	for (i = 0; i < TEST_BUFS; i++) {
		for (j = 0; j < SHA512_DIGEST_NWORDS; j++) {
			if (ctxpool[i].job.result_digest[j] !=
			    byteswap64(((uint64_t *) digest_ssl[i])[j])) {
				fail++;
				printf("Test%d, digest%d fail %016lX <=> %016lX\n",
				       i, j, ctxpool[i].job.result_digest[j],
				       byteswap64(((uint64_t *) digest_ssl[i])[j]));
			}
		}
	}

	printf("Multi-buffer sha512 test complete %d buffers of %d B with "
	       "%d iterations\n", TEST_BUFS, TEST_LEN, TEST_LOOPS);

	if (fail)
		printf("Test failed function check %d\n", fail);
	else
		printf("multibinary_sha512_ossl_perf: Pass\n");

	return fail;
}
