__cxa_thread_atexit_test.cpp revision 947adedebc480917b8490bc16e8b2d82b441095a 
1/*
2 * Copyright (C) 2014 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 <gtest/gtest.h>
18
19#include <stdint.h>
20
21#include <string>
22
23static std::string class_with_dtor_output;
24
25class ClassWithDtor {
26 public:
27  void set_message(const std::string& msg) {
28    message = msg;
29  }
30
31  ~ClassWithDtor() {
32    class_with_dtor_output += message;
33  }
34 private:
35  std::string message;
36};
37
38thread_local ClassWithDtor class_with_dtor;
39
40static void* thread_nop(void* arg) {
41  class_with_dtor.set_message(*static_cast<std::string*>(arg));
42  return nullptr;
43}
44
45TEST(thread_local, smoke) {
46  std::string msg("dtor called.");
47  pthread_t t;
48  ASSERT_EQ(0, pthread_create(&t, nullptr, thread_nop, &msg));
49  ASSERT_EQ(0, pthread_join(t, nullptr));
50  ASSERT_EQ("dtor called.", class_with_dtor_output);
51}
52
53extern "C" int __cxa_thread_atexit_impl(void (*fn)(void*), void* arg, void* dso_handle);
54
55static void thread_atexit_fn1(void* arg) {
56  std::string* call_sequence = static_cast<std::string*>(arg);
57  *call_sequence += "one, ";
58}
59
60static void thread_atexit_fn2(void* arg) {
61  std::string* call_sequence = static_cast<std::string*>(arg);
62  *call_sequence += "two, ";
63}
64
65static void thread_atexit_from_atexit(void* arg) {
66  std::string* call_sequence = static_cast<std::string*>(arg);
67  *call_sequence += "oops, ";
68}
69
70static void thread_atexit_fn3(void* arg) {
71  __cxa_thread_atexit_impl(thread_atexit_from_atexit, arg, nullptr);
72  std::string* call_sequence = static_cast<std::string*>(arg);
73  *call_sequence += "three, ";
74}
75
76static void thread_atexit_fn4(void* arg) {
77  std::string* call_sequence = static_cast<std::string*>(arg);
78  *call_sequence += "four, ";
79}
80
81static void thread_atexit_fn5(void* arg) {
82  std::string* call_sequence = static_cast<std::string*>(arg);
83  *call_sequence += "five.";
84}
85
86static void* thread_main(void* arg) {
87  __cxa_thread_atexit_impl(thread_atexit_fn5, arg, nullptr);
88  __cxa_thread_atexit_impl(thread_atexit_fn4, arg, nullptr);
89  __cxa_thread_atexit_impl(thread_atexit_fn3, arg, nullptr);
90  __cxa_thread_atexit_impl(thread_atexit_fn2, arg, nullptr);
91  __cxa_thread_atexit_impl(thread_atexit_fn1, arg, nullptr);
92  return nullptr;
93}
94
95TEST(__cxa_thread_atexit_impl, smoke) {
96  std::string atexit_call_sequence;
97
98  pthread_t t;
99  ASSERT_EQ(0, pthread_create(&t, nullptr, thread_main, &atexit_call_sequence));
100  ASSERT_EQ(0, pthread_join(t, nullptr));
101  ASSERT_EQ("one, two, three, oops, four, five.", atexit_call_sequence);
102}
103
104
105