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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <sanitizer/allocator_interface.h>
static int malloc_count;
static int free_count;
extern "C" {
void __sanitizer_malloc_hook(const volatile void *ptr, size_t size) {
(void)ptr;
(void)size;
__sync_fetch_and_add(&malloc_count, 1);
}
void __sanitizer_free_hook(const volatile void *ptr) {
(void)ptr;
__sync_fetch_and_add(&free_count, 1);
}
}
void *Thread1(void *x) {
((int*)x)[0]++;
return 0;
}
void *Thread2(void *x) {
sleep(1);
((int*)x)[0]++;
return 0;
}
int main() {
int *x = new int;
pthread_t t[2];
pthread_create(&t[0], 0, Thread1, x);
pthread_create(&t[1], 0, Thread2, x);
pthread_join(t[0], 0);
pthread_join(t[1], 0);
delete x;
if (malloc_count == 0 || free_count == 0) {
fprintf(stderr, "FAILED %d %d\n", malloc_count, free_count);
exit(1);
}
fprintf(stderr, "DONE\n");
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NOT: FAILED
// CHECK: DONE
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