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/**********************************************************************
Copyright(c) 2011-2018 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 <string.h>
#include <stdlib.h>
#include <limits.h>
#include "mem_routines.h"
#include "types.h"
#define TEST_MEM 10*1024*1024
#define TEST_LEN 8*1024
#define RAND_ALIGN 32
#define BORDER_BYTES (5*RAND_ALIGN + 7)
#ifndef RANDOMS
# define RANDOMS 2000
#endif
#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif
int main(int argc, char *argv[])
{
int i, j, sign;
long long r, l;
void *buf;
unsigned char *a;
int failures = 0, ret_neg = 1;
printf("mem_zero_detect_test %d bytes, %d randoms, seed=0x%x ", TEST_MEM, RANDOMS,
TEST_SEED);
if (posix_memalign(&buf, 64, TEST_MEM)) {
printf("alloc error: Fail");
return -1;
}
srand(TEST_SEED);
// Test full zero buffer
memset(buf, 0, TEST_MEM);
failures = isal_zero_detect(buf, TEST_MEM);
if (failures) {
printf("Fail large buf test\n");
return failures;
}
putchar('.');
// Test small buffers
for (i = 0; i < TEST_LEN; i++) {
failures |= isal_zero_detect(buf, i);
if (failures) {
printf("Fail len=%d\n", i);
return failures;
}
}
putchar('.');
// Test small buffers near end of alloc region
a = buf;
for (i = 0; i < TEST_LEN; i++)
failures |= isal_zero_detect(&a[TEST_LEN - i], i);
if (failures) {
printf("Fail:\n");
return failures;
}
putchar('.');
// Test for detect non zero
a[TEST_MEM / 2] = 1;
ret_neg = isal_zero_detect(a, TEST_MEM);
if (ret_neg == 0) {
printf("Fail on not detect\n");
return -1;
}
a[TEST_MEM / 2] = 0;
putchar('.');
// Test various non-zero offsets
for (i = 0; i < BORDER_BYTES; i++) {
for (j = 0; j < CHAR_BIT; j++) {
a[i] = 1 << j;
ret_neg = isal_zero_detect(a, TEST_MEM);
if (ret_neg == 0) {
printf("Fail on not detect offsets %d, %d\n", i, j);
return -1;
}
a[i] = 0;
}
}
putchar('.');
fflush(0);
// Test random non-zero offsets
for (i = 0; i < RANDOMS; i++) {
r = rand();
r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1));
if (r >= TEST_LEN)
continue;
a[r] = 1 << (r & (CHAR_BIT - 1));
ret_neg = isal_zero_detect(a, TEST_MEM);
if (ret_neg == 0) {
printf("Fail on not detect rand %d, e=%lld\n", i, r);
return -1;
}
a[r] = 0;
}
putchar('.');
fflush(0);
// Test putting non-zero byte at end of buffer
for (i = 1; i < BORDER_BYTES; i++) {
for (j = 0; j < CHAR_BIT; j++) {
a[TEST_MEM - i] = 1 << j;
ret_neg = isal_zero_detect(a, TEST_MEM);
if (ret_neg == 0) {
printf("Fail on not detect rand offset=%d, idx=%d\n", i, j);
return -1;
}
a[TEST_MEM - i] = 0;
}
}
putchar('.');
// Test various size buffers and non-zero offsets
for (l = 1; l < TEST_LEN; l++) {
for (i = 0; i < l + BORDER_BYTES; i++) {
failures = isal_zero_detect(a, l);
if (failures) {
printf("Fail on detect non-zero with l=%lld\n", l);
return -1;
}
a[i] = 1;
ret_neg = isal_zero_detect(a, l);
if ((i < l) && (ret_neg == 0)) {
printf("Fail on non-zero buffer l=%lld err=%d\n", l, i);
return -1;
}
if ((i >= l) && (ret_neg != 0)) {
printf("Fail on bad pass detect l=%lld err=%d\n", l, i);
return -1;
}
a[i] = 0;
}
}
putchar('.');
// Test random test size and non-zero error offsets
for (i = 0; i < RANDOMS; i++) {
r = rand();
r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1));
l = r + 1 + (rand() & (CHAR_BIT - 1));
a[r] = 1 << (r & (CHAR_BIT - 1));
ret_neg = isal_zero_detect(a, l);
if (ret_neg == 0) {
printf("Fail on not detect rand %d, l=%lld, e=%lld\n", i, l, r);
return -1;
}
a[r] = 0;
}
putchar('.');
fflush(0);
// Test combinations of zero and non-zero buffers
for (i = 0; i < RANDOMS; i++) {
r = rand();
r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1));
sign = rand() & 1 ? 1 : -1;
l = r + sign * (rand() & (2 * RAND_ALIGN - 1));
if ((l >= TEST_LEN) || (l < 0) || (r >= TEST_LEN))
continue;
a[r] = 1 << (r & (CHAR_BIT - 1));
ret_neg = isal_zero_detect(a, l);
if ((r < l) && (ret_neg == 0)) {
printf("Fail on non-zero rand buffer %d, l=%lld, e=%lld\n", i, l, r);
return -1;
}
if ((r >= l) && (ret_neg != 0)) {
printf("Fail on bad pass zero detect rand %d, l=%lld, e=%lld\n", i, l,
r);
return -1;
}
a[r] = 0;
}
putchar('.');
fflush(0);
printf(failures == 0 ? " Pass\n" : " Fail\n");
return failures;
}
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