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      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
     22 static std::string* atexit_sequence = NULL;
     23 static bool* atexit_valid_this_in_static_dtor = NULL;
     24 
     25 static 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 
     38 const AtExitStaticClass* AtExitStaticClass::expected_this = NULL;
     39 
     40 // 4
     41 static void atexit_handler_from_atexit_from_atexit2() {
     42   *atexit_sequence += " on";
     43 }
     44 
     45 // 3
     46 static void atexit_handler_from_atexit_from_atexit1() {
     47   *atexit_sequence += " sat";
     48 }
     49 
     50 // 2
     51 static 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
     59 static void atexit_handler_with_atexit() {
     60   *atexit_sequence += "Humpty";
     61   atexit(atexit_handler_from_atexit);
     62 }
     63 
     64 // last
     65 static void atexit_handler_regular() {
     66   *atexit_sequence += " a wall";
     67 }
     68 
     69 extern "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