1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <sys/time.h>
18
19 #include <chrono>
20 #include <functional>
21
22 #include <gtest/gtest.h>
23 #include <ScopedDisableMalloc.h>
24
25 using namespace std::chrono_literals;
26
27 class DisableMallocTest : public ::testing::Test {
28 protected:
alarm(std::chrono::microseconds us)29 void alarm(std::chrono::microseconds us) {
30 std::chrono::seconds s = std::chrono::duration_cast<std::chrono::seconds>(us);
31 itimerval t = itimerval();
32 t.it_value.tv_sec = s.count();
33 t.it_value.tv_usec = (us - s).count();
34 setitimer(ITIMER_REAL, &t, NULL);
35 }
36 };
37
TEST_F(DisableMallocTest,reenable)38 TEST_F(DisableMallocTest, reenable) {
39 ASSERT_EXIT({
40 alarm(100ms);
41 void *ptr1 = malloc(128);
42 ASSERT_NE(ptr1, nullptr);
43 free(ptr1);
44 {
45 ScopedDisableMalloc disable_malloc;
46 }
47 void *ptr2 = malloc(128);
48 ASSERT_NE(ptr2, nullptr);
49 free(ptr2);
50 _exit(1);
51 }, ::testing::ExitedWithCode(1), "");
52 }
53
TEST_F(DisableMallocTest,deadlock_allocate)54 TEST_F(DisableMallocTest, deadlock_allocate) {
55 ASSERT_DEATH({
56 void *ptr = malloc(128);
57 ASSERT_NE(ptr, nullptr);
58 free(ptr);
59 {
60 alarm(100ms);
61 ScopedDisableMalloc disable_malloc;
62 void* ptr = malloc(128);
63 ASSERT_NE(ptr, nullptr);
64 free(ptr);
65 }
66 }, "");
67 }
68
TEST_F(DisableMallocTest,deadlock_new)69 TEST_F(DisableMallocTest, deadlock_new) {
70 ASSERT_DEATH({
71 char* ptr = new(char);
72 ASSERT_NE(ptr, nullptr);
73 delete(ptr);
74 {
75 alarm(100ms);
76 ScopedDisableMalloc disable_malloc;
77 char* ptr = new(char);
78 ASSERT_NE(ptr, nullptr);
79 delete(ptr);
80 }
81 }, "");
82 }
83
TEST_F(DisableMallocTest,deadlock_delete)84 TEST_F(DisableMallocTest, deadlock_delete) {
85 ASSERT_DEATH({
86 char* ptr = new(char);
87 ASSERT_NE(ptr, nullptr);
88 {
89 alarm(250ms);
90 ScopedDisableMalloc disable_malloc;
91 delete(ptr);
92 }
93 }, "");
94 }
95
TEST_F(DisableMallocTest,deadlock_free)96 TEST_F(DisableMallocTest, deadlock_free) {
97 ASSERT_DEATH({
98 void *ptr = malloc(128);
99 ASSERT_NE(ptr, nullptr);
100 {
101 alarm(100ms);
102 ScopedDisableMalloc disable_malloc;
103 free(ptr);
104 }
105 }, "");
106 }
107
TEST_F(DisableMallocTest,deadlock_fork)108 TEST_F(DisableMallocTest, deadlock_fork) {
109 ASSERT_DEATH({
110 {
111 alarm(100ms);
112 ScopedDisableMalloc disable_malloc;
113 fork();
114 }
115 }, "");
116 }
117