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libvirt/tests/viralloctest.c

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/*
* viralloctest.c: Test memory allocation APIs
*
* Copyright (C) 2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <viralloc.h>
#include "testutils.h"
#define VIR_FROM_THIS VIR_FROM_NONE
typedef struct testDummyStruct {
int a;
int b;
} testDummyStruct;
static int
testCheckNonNull(void *t)
{
if (t == NULL) {
fprintf(stderr, "Allocation succeeded but pointer is NULL\n");
return -1;
}
return 0;
}
static int
testAllocScalar(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct *t;
int ret = -1;
if (VIR_ALLOC(t) < 0)
return -1;
if (testCheckNonNull(t) < 0)
goto cleanup;
if (t->a != 0 ||
t->b != 0) {
fprintf(stderr, "Allocated ram was not zerod\n");
goto cleanup;
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
testAllocArray(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct *t;
size_t nt = 10, i;
int ret = -1;
if (VIR_ALLOC_N(t, nt) < 0)
return -1;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
if (t[i].a != 0 ||
t[i].b != 0) {
fprintf(stderr, "Allocated ram block %zu was not zerod\n", i);
goto cleanup;
}
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
testReallocArray(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct *t;
size_t nt = 10, i;
int ret = -1;
if (VIR_ALLOC_N(t, nt) < 0)
return -1;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
t[i].a = 10;
t[i].b = 20;
}
if (VIR_REALLOC_N(t, nt + 5) < 0)
goto cleanup;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
if (VIR_REALLOC_N(t, nt) < 0)
goto cleanup;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
if (VIR_REALLOC_N(t, nt - 5) < 0)
goto cleanup;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < (nt - 5); i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
testExpandArray(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct *t;
size_t nt = 10, i;
int ret = -1;
if (VIR_ALLOC_N(t, nt) < 0)
return -1;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
t[i].a = 10;
t[i].b = 20;
}
if (VIR_EXPAND_N(t, nt, 5) < 0)
goto cleanup;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < (nt - 5); i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
for (i = (nt - 5); i < nt; i++) {
if (t[i].a != 0 ||
t[i].b != 0) {
fprintf(stderr, "New ram block %zu was not zerod\n", i);
goto cleanup;
}
}
VIR_SHRINK_N(t, nt, 5);
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
VIR_SHRINK_N(t, nt, 5);
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
testResizeArray(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct *t;
size_t nt = 10, at, i;
int ret = -1;
if (VIR_ALLOC_N(t, nt) < 0)
return -1;
at = nt;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++) {
t[i].a = 10;
t[i].b = 20;
}
if (VIR_RESIZE_N(t, at, nt, 8) < 0)
goto cleanup;
if (testCheckNonNull(t) < 0)
goto cleanup;
if (at != 18) {
fprintf(stderr, "Expected allocation of 16 not %zu\n", at);
goto cleanup;
}
for (i = 0; i < at; i++) {
if (i >= nt) {
if (t[i].a != 0 ||
t[i].b != 0) {
fprintf(stderr, "New ram block %zu was not zerod\n", i);
goto cleanup;
}
} else {
if (t[i].a != 10 ||
t[i].b != 20) {
fprintf(stderr, "Reallocated ram block %zu lost data\n", i);
goto cleanup;
}
}
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
testInsertArray(const void *opaque ATTRIBUTE_UNUSED)
{
testDummyStruct **t;
size_t nt = 10, i;
int ret = -1;
testDummyStruct *n = (void *)0xff;
if (VIR_ALLOC_N(t, nt) < 0)
return -1;
if (testCheckNonNull(t) < 0)
goto cleanup;
for (i = 0; i < nt; i++)
t[i] = (void*)0x50;
if (VIR_INSERT_ELEMENT(t, 3, nt, n) < 0) {
if (nt != 10) {
fprintf(stderr, "Expecting array size 10 after OOM not %zu\n", nt);
goto cleanup;
}
goto cleanup;
}
if (nt != 11) {
fprintf(stderr, "Expecting array size 11 not %zu\n", nt);
goto cleanup;
}
if (n != NULL) {
fprintf(stderr, "Expecting element to be set to NULL\n");
goto cleanup;
}
for (i = 0; i < nt; i++) {
void *expect = i == 3 ? (void *)0xff : (void*)0x50;
if (t[i] != expect) {
fprintf(stderr, "Expecting %p at offset %zu not %p\n",
expect, i, t[i]);
goto cleanup;
}
}
VIR_FREE(t);
if (t != NULL) {
fprintf(stderr, "Pointer is still set after free\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(t);
return ret;
}
static int
mymain(void)
{
int ret = 0;
if (virtTestRun("alloc scalar", testAllocScalar, NULL) < 0)
ret = -1;
if (virtTestRun("alloc array", testAllocArray, NULL) < 0)
ret = -1;
if (virtTestRun("realloc array", testReallocArray, NULL) < 0)
ret = -1;
if (virtTestRun("expand array", testExpandArray, NULL) < 0)
ret = -1;
if (virtTestRun("resize array", testResizeArray, NULL) < 0)
ret = -1;
if (virtTestRun("insert array", testInsertArray, NULL) < 0)
ret = -1;
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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