asan_racy_double_free_test.cc revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1#include <pthread.h>
2#include <stdlib.h>
3#include <stdio.h>
4
5const int N = 1000;
6void *x[N];
7
8void *Thread1(void *unused) {
9  for (int i = 0; i < N; i++) {
10    fprintf(stderr, "%s %d\n", __func__, i);
11    free(x[i]);
12  }
13  return NULL;
14}
15
16void *Thread2(void *unused) {
17  for (int i = 0; i < N; i++) {
18    fprintf(stderr, "%s %d\n", __func__, i);
19    free(x[i]);
20  }
21  return NULL;
22}
23
24int main() {
25  for (int i = 0; i < N; i++)
26    x[i] = malloc(128);
27  pthread_t t[2];
28  pthread_create(&t[0], 0, Thread1, 0);
29  pthread_create(&t[1], 0, Thread2, 0);
30  pthread_join(t[0], 0);
31  pthread_join(t[1], 0);
32}
33