drd/tests/std_list.cpp

   1 /*
   2  * Test program that triggers strcpy() from one thread and a memory allocation
   3  * immediately after the region read by strcpy() from another thread. Without
   4  * strcpy() intercept there is about 50% chance that this test program triggers
   5  * a false positive race report on Ubuntu 12.10 amd64.
   6  *
   7  * See also https://bugs.kde.org/show_bug.cgi?id=326436.
   8  */
   9
  10 #include <locale.h>
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13 #include <pthread.h>
  14 #include <string.h>
  15 #include <string>
  16 #include <sstream>
  17 #include <list>
  18
  19 using namespace std;
  20
  21 class SubTest {
  22 public:
  23   SubTest() {
  24     list<int *> ffList;
  25     ffList.push_back((int *) NULL);
  26     for (list<int*>::iterator ff = ffList.begin(); ff != ffList.end(); ff++) {
  27       usleep(1000);
  28     }
  29   }
  30   void subTest() {
  31     list<int *> ffList;
  32     ffList.push_back((int *) NULL);
  33     for (list<int*>::const_iterator ff = ffList.begin(); ff != ffList.end(); ff++) {
  34       usleep(1000);
  35     }
  36   }
  37 };
  38
  39 class Test {
  40   SubTest *subTest;
  41 public:
  42   void setUp() {
  43     subTest = new SubTest();
  44     setlocale(LC_ALL, "English");
  45   }
  46   void tearDown() {
  47     delete subTest; }
  48   void func1() {
  49     for (size_t i = 0; i < 10000; i++) {
  50       subTest->subTest();
  51       usleep(1000);
  52     }
  53   }
  54   void func2() {
  55     usleep(1000);
  56   }
  57 };
  58
  59 void *func1(void *instance)
  60 {
  61   Test *casted = reinterpret_cast<Test*>(instance);
  62   casted->setUp();
  63   casted->func1();
  64   casted->tearDown();
  65   return NULL;
  66 }
  67
  68 void *func2(void *instance)
  69 {
  70   Test *casted = reinterpret_cast<Test*>(instance);
  71   casted->setUp();
  72   casted->func2();
  73   casted->tearDown();
  74   return NULL;
  75 }
  76
  77 int main(int argc, char* argv[])
  78 {
  79   int err;
  80   pthread_t thread1;
  81   pthread_t thread2;
  82   Test instance1;
  83   Test instance2;
  84
  85   // create
  86   err = pthread_create(&thread1, NULL, &func1, &instance1);
  87   if (err != 0)
  88     throw string("failed to create a thread.");
  89   err = pthread_create(&thread2, NULL, &func2, &instance2);
  90   if (err != 0)
  91     throw string("failed to create a thread.");
  92   // join
  93   err = pthread_join(thread1, NULL);
  94   if (err != 0)
  95     throw string("Thread::join(): failed to join.");
  96   err = pthread_join(thread2, NULL);
  97   if (err != 0)
  98     throw string("Thread::join(): failed to join.");
  99 }