1 | // RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=atexit_sleep_ms=50 %run %t 2>&1 | FileCheck %s |
2 | #include "test.h" |
3 | #include <errno.h> |
4 | #include <sys/types.h> |
5 | #include <sys/wait.h> |
6 | |
7 | int counter; |
8 | |
9 | static void *incrementer(void *p) { |
10 | for (;;) |
11 | __sync_fetch_and_add(&counter, 1); |
12 | return 0; |
13 | } |
14 | |
15 | int main() { |
16 | barrier_init(barrier: &barrier, count: 2); |
17 | pthread_t th1; |
18 | pthread_create(newthread: &th1, attr: 0, start_routine: incrementer, arg: 0); |
19 | for (int i = 0; i < 10; i++) { |
20 | switch (fork()) { |
21 | default: // parent |
22 | while (wait(stat_loc: 0) < 0) {} |
23 | fprintf(stderr, format: "." ); |
24 | break; |
25 | case 0: // child |
26 | __sync_fetch_and_add(&counter, 1); |
27 | exit(status: 0); |
28 | break; |
29 | case -1: // error |
30 | fprintf(stderr, format: "failed to fork (%d)\n" , errno); |
31 | exit(status: 1); |
32 | } |
33 | } |
34 | fprintf(stderr, format: "OK\n" ); |
35 | } |
36 | |
37 | // CHECK: OK |
38 | |
39 | |