atexit_testlib.cpp revision 1f5e1a3cbc564c593fe1090894ecdb070f36e20c 
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#include <stdio.h>
17#include <stdlib.h>
18
19#include <string>
20
21// use external control number from main test
22static std::string* atexit_sequence = NULL;
23static bool* atexit_valid_this_in_static_dtor = NULL;
24
25static class AtExitStaticClass {
26 public:
27  AtExitStaticClass() { expected_this = this; }
28  ~AtExitStaticClass() {
29    if (atexit_valid_this_in_static_dtor) {
30      *atexit_valid_this_in_static_dtor = (expected_this == this);
31    }
32  }
33 private:
34  static const AtExitStaticClass* expected_this;
35
36} static_obj;
37
38const AtExitStaticClass* AtExitStaticClass::expected_this = NULL;
39
40// 4
41static void atexit_handler_from_atexit_from_atexit2() {
42  *atexit_sequence += " on";
43}
44
45// 3
46static void atexit_handler_from_atexit_from_atexit1() {
47  *atexit_sequence += " sat";
48}
49
50// 2
51static void atexit_handler_from_atexit() {
52  *atexit_sequence += " Dumpty";
53  // register 2 others
54  atexit(atexit_handler_from_atexit_from_atexit2);
55  atexit(atexit_handler_from_atexit_from_atexit1);
56}
57
58// 1
59static void atexit_handler_with_atexit() {
60  *atexit_sequence += "Humpty";
61  atexit(atexit_handler_from_atexit);
62}
63
64// last
65static void atexit_handler_regular() {
66  *atexit_sequence += " a wall";
67}
68
69extern "C" void register_atexit(std::string* sequence, bool* valid_this_in_static_dtor) {
70  atexit_sequence = sequence;
71  atexit_valid_this_in_static_dtor = valid_this_in_static_dtor;
72  atexit(atexit_handler_regular);
73  atexit(atexit_handler_with_atexit);
74}
75
76