1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <string.h>
20
21 #include <grpc/support/alloc.h>
22 #include <grpc/support/log.h>
23
24 #include "test/core/util/test_config.h"
25
fake_malloc(size_t size)26 static void* fake_malloc(size_t size) { return (void*)size; }
27
fake_realloc(void * addr,size_t size)28 static void* fake_realloc(void* addr, size_t size) { return (void*)size; }
29
fake_free(void * addr)30 static void fake_free(void* addr) {
31 *(static_cast<intptr_t*>(addr)) = static_cast<intptr_t>(0xdeadd00d);
32 }
33
test_custom_allocs()34 static void test_custom_allocs() {
35 const gpr_allocation_functions default_fns = gpr_get_allocation_functions();
36 intptr_t addr_to_free = 0;
37 char* i;
38 gpr_allocation_functions fns = {fake_malloc, nullptr, fake_realloc,
39 fake_free};
40
41 gpr_set_allocation_functions(fns);
42 GPR_ASSERT((void*)(size_t)0xdeadbeef == gpr_malloc(0xdeadbeef));
43 GPR_ASSERT((void*)(size_t)0xcafed00d == gpr_realloc(nullptr, 0xcafed00d));
44
45 gpr_free(&addr_to_free);
46 GPR_ASSERT(addr_to_free == (intptr_t)0xdeadd00d);
47
48 /* Restore and check we don't get funky values and that we don't leak */
49 gpr_set_allocation_functions(default_fns);
50 GPR_ASSERT((void*)sizeof(*i) !=
51 (i = static_cast<char*>(gpr_malloc(sizeof(*i)))));
52 GPR_ASSERT((void*)2 != (i = static_cast<char*>(gpr_realloc(i, 2))));
53 gpr_free(i);
54 }
55
test_malloc_aligned()56 static void test_malloc_aligned() {
57 for (size_t size = 1; size <= 256; ++size) {
58 void* ptr = gpr_malloc_aligned(size, 16);
59 GPR_ASSERT(ptr != nullptr);
60 GPR_ASSERT(((intptr_t)ptr & 0xf) == 0);
61 memset(ptr, 0, size);
62 gpr_free_aligned(ptr);
63 }
64 }
65
main(int argc,char ** argv)66 int main(int argc, char** argv) {
67 grpc_test_init(argc, argv);
68 test_custom_allocs();
69 test_malloc_aligned();
70 return 0;
71 }
72