1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
| // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <sched.h>
struct Cache {
int x;
explicit Cache(int x)
: x(x) {
}
};
void *AsyncInit(void *p) {
return new Cache((int)(long)p);
}
Cache *CreateCache() {
pthread_t t;
pthread_create(&t, 0, AsyncInit, (void*)(long)rand());
void *res;
pthread_join(t, &res);
return (Cache*)res;
}
void *Thread1(void *x) {
static Cache *c = CreateCache();
if (c->x >= RAND_MAX)
exit(1);
return 0;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], 0, Thread1, 0);
pthread_create(&t[1], 0, Thread1, 0);
pthread_join(t[0], 0);
pthread_join(t[1], 0);
fprintf(stderr, "PASS\n");
}
// CHECK-NOT: WARNING: ThreadSanitizer: data race
|