| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=flush_memory_ms=1 %run %t 2>&1 | FileCheck %s |
|---|---|
| 2 | #include "test.h" |
| 3 | #include <fcntl.h> |
| 4 | #include <sys/stat.h> |
| 5 | #include <sys/types.h> |
| 6 | #include <unistd.h> |
| 7 | |
| 8 | void *Thread(void *stop) { |
| 9 | while (!__atomic_load_n((int *)stop, __ATOMIC_RELAXED)) |
| 10 | close(fd: open(file: "/dev/null", O_RDONLY)); |
| 11 | return 0; |
| 12 | } |
| 13 | |
| 14 | int main() { |
| 15 | int stop = 0; |
| 16 | const int kThreads = 10; |
| 17 | pthread_t th[kThreads]; |
| 18 | for (int i = 0; i < kThreads; i++) |
| 19 | pthread_create(newthread: &th[i], attr: 0, start_routine: Thread, arg: &stop); |
| 20 | sleep(seconds: 5); |
| 21 | __atomic_store_n(&stop, 1, __ATOMIC_RELAXED); |
| 22 | for (int i = 0; i < kThreads; i++) |
| 23 | pthread_join(th: th[i], thread_return: 0); |
| 24 | fprintf(stderr, format: "DONE\n"); |
| 25 | } |
| 26 | |
| 27 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
| 28 | // CHECK: DONE |
| 29 |