| // RUN: %clangxx_tsan -O1 %s -o %t && %run %t |
| |
| // Make sure TSan doesn't deadlock on a file stream lock at program shutdown. |
| // See https://github.com/google/sanitizers/issues/454 |
| #ifdef __FreeBSD__ |
| #define _WITH_GETLINE // to declare getline() |
| #endif |
| |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| |
| void *thread(void *unused) { |
| char *line = NULL; |
| size_t size; |
| int fd[2]; |
| pipe(fd); |
| // Forge a non-standard stream to make sure it's not closed. |
| FILE *stream = fdopen(fd[0], "r"); |
| while (1) { |
| volatile int res = getline(&line, &size, stream); |
| (void)res; |
| } |
| return NULL; |
| } |
| |
| int main() { |
| pthread_t t; |
| pthread_attr_t a; |
| pthread_attr_init(&a); |
| pthread_attr_setdetachstate(&a, PTHREAD_CREATE_DETACHED); |
| pthread_create(&t, &a, thread, NULL); |
| pthread_attr_destroy(&a); |
| fprintf(stderr, "DONE\n"); |
| return 0; |
| // ThreadSanitizer used to hang here because of a deadlock on a file stream. |
| } |
| |
| // CHECK: DONE |
