openstack/deb-libisal
Code Issues Proposed changes
be09e56b36
deb-libisal/crc/crc64_funcs_test.c
Xiaodong Liu 3d66317189 crc64: add jones and iso format, crc64 code clean 
1. Add normal and reflected bits order functions for ISO format and
   Jones coefficients format.
2. Add a multi-binary macro for crc64 functions.
3. In order to decrease number of repeated test.c and perf.c files,
   using crc64_funcs_test.c and cr crc64_funcs_perf.c.
4. Add crc64_example.c to take the demonstration role.

Change-Id: Icb8c14f1a84cd98f58eb12206ca605dea8a2cefb
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
2016-12-06 13:48:13 -07:00

291 lines
7.6 KiB
C
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/**********************************************************************
Copyright(c) 2011-2016 Intel Corporation All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "crc64.h"
#include "types.h"
#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif
#define MAX_BUF 512
#define TEST_SIZE 20
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
typedef uint64_t(*crc64_func_t) (uint64_t, const uint8_t *, uint64_t);
typedef struct func_case {
char *note;
crc64_func_t crc64_func_call;
crc64_func_t crc64_ref_call;
} func_case_t;
func_case_t test_funcs[] = {
{"crc64_ecma_norm", crc64_ecma_norm, crc64_ecma_norm_base},
{"crc64_ecma_refl", crc64_ecma_refl, crc64_ecma_refl_base},
{"crc64_iso_norm", crc64_iso_norm, crc64_iso_norm_base},
{"crc64_iso_refl", crc64_iso_refl, crc64_iso_refl_base},
{"crc64_jones_norm", crc64_jones_norm, crc64_jones_norm_base},
{"crc64_jones_refl", crc64_jones_refl, crc64_jones_refl_base}
};
// Generates pseudo-random data
void rand_buffer(unsigned char *buf, long buffer_size)
{
long i;
for (i = 0; i < buffer_size; i++)
buf[i] = rand();
}
// Test cases
int zeros_test(func_case_t * test_func);
int simple_pattern_test(func_case_t * test_func);
int seeds_sizes_test(func_case_t * test_func);
int eob_test(func_case_t * test_func);
int update_test(func_case_t * test_func);
int verbose = 0;
void *buf_alloc = NULL;
int main(int argc, char *argv[])
{
int fail = 0, fail_case;
int i, ret;
func_case_t *test_func;
verbose = argc - 1;
// Align to MAX_BUF boundary
ret = posix_memalign(&buf_alloc, MAX_BUF, MAX_BUF * TEST_SIZE);
if (ret) {
printf("alloc error: Fail");
return -1;
}
srand(TEST_SEED);
printf("CRC64 Tests\n");
for (i = 0; i < sizeof(test_funcs) / sizeof(test_funcs[0]); i++) {
fail_case = 0;
test_func = &test_funcs[i];
printf("Test %s ", test_func->note);
fail_case += zeros_test(test_func);
fail_case += simple_pattern_test(test_func);
fail_case += seeds_sizes_test(test_func);
fail_case += eob_test(test_func);
fail_case += update_test(test_func);
printf("Test %s done: %s\n", test_func->note, fail_case ? "Fail" : "Pass");
if (fail_case) {
printf("\n%s Failed %d tests\n", test_func->note, fail_case);
fail++;
}
}
printf("CRC64 Tests all done: %s\n", fail ? "Fail" : "Pass");
return fail;
}
// Test of all zeros
int zeros_test(func_case_t * test_func)
{
uint64_t crc, crc_ref;
int fail = 0;
unsigned char *buf = NULL;
buf = (unsigned char *)buf_alloc;
memset(buf, 0, MAX_BUF * 10);
crc = test_func->crc64_func_call(TEST_SEED, buf, MAX_BUF * 10);
crc_ref = test_func->crc64_ref_call(TEST_SEED, buf, MAX_BUF * 10);
if (crc != crc_ref) {
fail++;
printf("\n opt ref\n");
printf(" ------ ------\n");
printf("crc zero = 0x%16lx 0x%16lx \n", crc, crc_ref);
} else
printf(".");
return fail;
}
// Another simple test pattern
int simple_pattern_test(func_case_t * test_func)
{
uint64_t crc, crc_ref;
int fail = 0;
unsigned char *buf = NULL;
buf = (unsigned char *)buf_alloc;
memset(buf, 0x8a, MAX_BUF);
crc = test_func->crc64_func_call(TEST_SEED, buf, MAX_BUF);
crc_ref = test_func->crc64_ref_call(TEST_SEED, buf, MAX_BUF);
if (crc != crc_ref)
fail++;
if (verbose)
printf("crc all 8a = 0x%16lx 0x%16lx\n", crc, crc_ref);
else
printf(".");
return fail;
}
int seeds_sizes_test(func_case_t * test_func)
{
uint64_t crc, crc_ref;
int fail = 0;
int i;
uint64_t r, s;
unsigned char *buf = NULL;
// Do a few random tests
buf = (unsigned char *)buf_alloc; //reset buf
r = rand();
rand_buffer(buf, MAX_BUF * TEST_SIZE);
for (i = 0; i < TEST_SIZE; i++) {
crc = test_func->crc64_func_call(r, buf, MAX_BUF);
crc_ref = test_func->crc64_ref_call(r, buf, MAX_BUF);
if (crc != crc_ref)
fail++;
if (verbose)
printf("crc rand%3d = 0x%16lx 0x%16lx\n", i, crc, crc_ref);
else
printf(".");
buf += MAX_BUF;
}
// Do a few random sizes
buf = (unsigned char *)buf_alloc; //reset buf
r = rand();
for (i = MAX_BUF; i >= 0; i--) {
crc = test_func->crc64_func_call(r, buf, i);
crc_ref = test_func->crc64_ref_call(r, buf, i);
if (crc != crc_ref) {
fail++;
printf("fail random size%i 0x%16lx 0x%16lx\n", i, crc, crc_ref);
} else
printf(".");
}
// Try different seeds
for (s = 0; s < 20; s++) {
buf = (unsigned char *)buf_alloc; //reset buf
r = rand(); // just to get a new seed
rand_buffer(buf, MAX_BUF * TEST_SIZE); // new pseudo-rand data
if (verbose)
printf("seed = 0x%lx\n", r);
for (i = 0; i < TEST_SIZE; i++) {
crc = test_func->crc64_func_call(r, buf, MAX_BUF);
crc_ref = test_func->crc64_ref_call(r, buf, MAX_BUF);
if (crc != crc_ref)
fail++;
if (verbose)
printf("crc rand%3d = 0x%16lx 0x%16lx\n", i, crc, crc_ref);
else
printf(".");
buf += MAX_BUF;
}
}
return fail;
}
// Run tests at end of buffer
int eob_test(func_case_t * test_func)
{
uint64_t crc, crc_ref;
int fail = 0;
int i;
unsigned char *buf = NULL;
buf = (unsigned char *)buf_alloc; //reset buf
buf = buf + ((MAX_BUF - 1) * TEST_SIZE); //Line up TEST_SIZE from end
for (i = 0; i < TEST_SIZE; i++) {
crc = test_func->crc64_func_call(TEST_SEED, buf + i, TEST_SIZE - i);
crc_ref = test_func->crc64_ref_call(TEST_SEED, buf + i, TEST_SIZE - i);
if (crc != crc_ref)
fail++;
if (verbose)
printf("crc eob rand%3d = 0x%16lx 0x%16lx\n", i, crc, crc_ref);
else
printf(".");
}
return fail;
}
int update_test(func_case_t * test_func)
{
uint64_t crc, crc_ref;
int fail = 0;
int i;
uint64_t r;
unsigned char *buf = NULL;
buf = (unsigned char *)buf_alloc; //reset buf
r = rand();
// Process the whole buf with reference func single call.
crc_ref = test_func->crc64_ref_call(r, buf, MAX_BUF * TEST_SIZE);
// Process buf with update method.
for (i = 0; i < TEST_SIZE; i++) {
crc = test_func->crc64_func_call(r, buf, MAX_BUF);
// Update crc seeds and buf pointer.
r = crc;
buf += MAX_BUF;
}
if (crc != crc_ref)
fail++;
if (verbose)
printf("crc rand%3d = 0x%16lx 0x%16lx\n", i, crc, crc_ref);
else
printf(".");
return fail;
}
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