1// RUN: %clangxx_tsan -O1 %s -o %t && TSAN_OPTIONS="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 7int counter; 8 9static void *incrementer(void *p) { 10 for (;;) 11 __sync_fetch_and_add(&counter, 1); 12 return 0; 13} 14 15static void *watchdog(void *p) { 16 sleep(100); // is not intended to exit 17 fprintf(stderr, "timed out after 100 seconds\n"); 18 exit(1); 19 return 0; 20} 21 22int main() { 23 barrier_init(&barrier, 2); 24 pthread_t th1, th2; 25 pthread_create(&th1, 0, incrementer, 0); 26 pthread_create(&th2, 0, watchdog, 0); 27 for (int i = 0; i < 10; i++) { 28 switch (fork()) { 29 default: // parent 30 while (wait(0) < 0) {} 31 fprintf(stderr, "."); 32 break; 33 case 0: // child 34 __sync_fetch_and_add(&counter, 1); 35 exit(0); 36 break; 37 case -1: // error 38 fprintf(stderr, "failed to fork (%d)\n", errno); 39 exit(1); 40 } 41 } 42 fprintf(stderr, "OK\n"); 43} 44 45// CHECK: OK 46 47