lldb/test/API/functionalities/tsan/thread_numbers/main.c

   1 #include <pthread.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5
   6 char *pointer;
   7
   8 void *nothing(void *p) {
   9     return NULL;
  10 }
  11
  12 void *f1(void *p) {
  13     pointer[0] = 'x';
  14     sleep(100);
  15     return NULL;
  16 }
  17
  18 void *f2(void *p) {
  19     pointer[0] = 'y';
  20     sleep(100);
  21     return NULL;
  22 }
  23
  24 int main (int argc, char const *argv[])
  25 {
  26     pointer = (char *)malloc(10);
  27
  28     for (int i = 0; i < 3; i++) {
  29         pthread_t t;
  30         pthread_create(&t, NULL, nothing, NULL);
  31         pthread_join(t, NULL);
  32     }
  33
  34     pthread_t t1;
  35     pthread_create(&t1, NULL, f1, NULL);
  36
  37     for (int i = 0; i < 3; i++) {
  38         pthread_t t;
  39         pthread_create(&t, NULL, nothing, NULL);
  40         pthread_join(t, NULL);
  41     }
  42
  43     pthread_t t2;
  44     pthread_create(&t2, NULL, f2, NULL);
  45
  46     pthread_join(t1, NULL);
  47     pthread_join(t2, NULL);
  48
  49     return 0;
  50 }