| // 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 |