1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <cxxabi.h>
30 #include <gtest/gtest.h>
31
TEST(__cxa_atexit,simple)32 TEST(__cxa_atexit, simple) {
33 int counter = 0;
34
35 __cxxabiv1::__cxa_atexit([](void* arg) { ++*static_cast<int*>(arg); }, &counter, &counter);
36
37 __cxxabiv1::__cxa_finalize(&counter);
38 ASSERT_EQ(counter, 1);
39
40 // The handler won't be called twice.
41 __cxxabiv1::__cxa_finalize(&counter);
42 ASSERT_EQ(counter, 1);
43 }
44
TEST(__cxa_atexit,order)45 TEST(__cxa_atexit, order) {
46 static std::vector<int> actual;
47
48 char handles[2];
49
50 auto append_to_actual = [](void* arg) {
51 int* idx = static_cast<int*>(arg);
52 actual.push_back(*idx);
53 delete idx;
54 };
55
56 for (int i = 0; i < 500; ++i) {
57 __cxxabiv1::__cxa_atexit(append_to_actual, new int{i}, &handles[i % 2]);
58 }
59
60 __cxxabiv1::__cxa_finalize(&handles[0]);
61
62 for (int i = 500; i < 750; ++i) {
63 __cxxabiv1::__cxa_atexit(append_to_actual, new int{i}, &handles[1]);
64 }
65
66 __cxxabiv1::__cxa_finalize(&handles[1]);
67
68 std::vector<int> expected;
69 for (int i = 498; i >= 0; i -= 2) expected.push_back(i);
70 for (int i = 749; i >= 500; --i) expected.push_back(i);
71 for (int i = 499; i >= 1; i -= 2) expected.push_back(i);
72
73 ASSERT_EQ(expected.size(), actual.size());
74 for (size_t i = 0; i < expected.size(); ++i) {
75 ASSERT_EQ(expected[i], actual[i]) << "index=" << i;
76 }
77 }
78