53 lines
1006 B
C++
53 lines
1006 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
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#include <pthread.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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static int malloc_count;
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static int free_count;
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extern "C" {
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void __tsan_malloc_hook(void *ptr, size_t size) {
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(void)ptr;
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(void)size;
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__sync_fetch_and_add(&malloc_count, 1);
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}
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void __tsan_free_hook(void *ptr) {
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(void)ptr;
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__sync_fetch_and_add(&free_count, 1);
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}
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}
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void *Thread1(void *x) {
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((int*)x)[0]++;
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return 0;
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}
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void *Thread2(void *x) {
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sleep(1);
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((int*)x)[0]++;
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return 0;
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}
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int main() {
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int *x = new int;
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pthread_t t[2];
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pthread_create(&t[0], 0, Thread1, x);
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pthread_create(&t[1], 0, Thread2, x);
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pthread_join(t[0], 0);
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pthread_join(t[1], 0);
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delete x;
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if (malloc_count == 0 || free_count == 0) {
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fprintf(stderr, "FAILED %d %d\n", malloc_count, free_count);
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exit(1);
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}
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fprintf(stderr, "DONE\n");
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK-NOT: FAILED
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// CHECK: DONE
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