drd/tests/std_string.cpp

   1 /*
   2  * Test program that uses std::string object from more than one thread and
   3  * that also triggers a call to __GI_strlen() (from inside strdup()). See also
   4  * https://bugs.kde.org/show_bug.cgi?id=326091.
   5  */
   6
   7 #include <list>
   8 #include <string>
   9 #include <cstring>
  10 #include <pthread.h>
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13
  14 char* list2byteArray()
  15 {
  16   size_t data_size = 24;
  17   char *data = new char[data_size];
  18   for (size_t i = 0; i < data_size; i++)
  19     data[i] = 'a';
  20   data[data_size - 1] = 0;
  21   char *ret = strdup(data);
  22   delete[] data;
  23   return ret;
  24 }
  25
  26 int addRecord()
  27 {
  28   char *data = list2byteArray();
  29   usleep(100);
  30   free(data);
  31   return 0;
  32 }
  33
  34 void *fillTable(void *ptr)
  35 {
  36   for (int i = 0; i < 100; i++) {
  37     std::string id("000");
  38     id.append(1, 'a' + i);
  39     std::list<std::string> record;
  40     record.push_back("some data");
  41     addRecord();
  42   }
  43   usleep(1000 * 1000);
  44   return NULL;
  45 }
  46
  47 int main(int argc, char* argv[])
  48 {
  49   pthread_t thread[2];
  50
  51   for (int i = 0; i < sizeof(thread)/sizeof(thread[0]); i++) {
  52     int ret = pthread_create(&thread[i], NULL, &fillTable, NULL);
  53     if (ret) {
  54       fprintf(stderr, "Failed to create thread %d: %d\n", i, ret);
  55       return 1;
  56     }
  57   }
  58
  59   for (int i = 0; i < sizeof(thread)/sizeof(thread[0]); i++) {
  60     int ret = pthread_join(thread[i], NULL);
  61     if (ret != 0) {
  62       fprintf(stderr, "Failed to join thread %d: %d\n", i, ret);
  63       return 1;
  64     }
  65   }
  66
  67   return 0;
  68 }