diff options
Diffstat (limited to 'lib/tsan/output_tests/vptr_benign_race.cc')
-rw-r--r-- | lib/tsan/output_tests/vptr_benign_race.cc | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/tsan/output_tests/vptr_benign_race.cc b/lib/tsan/output_tests/vptr_benign_race.cc new file mode 100644 index 0000000..fec4ffb --- /dev/null +++ b/lib/tsan/output_tests/vptr_benign_race.cc @@ -0,0 +1,50 @@ +#include <pthread.h> +#include <semaphore.h> +#include <stdio.h> + +struct A { + A() { + sem_init(&sem_, 0, 0); + } + virtual void F() { + } + void Done() { + sem_post(&sem_); + } + virtual ~A() { + } + sem_t sem_; +}; + +struct B : A { + virtual void F() { + } + virtual ~B() { + sem_wait(&sem_); + sem_destroy(&sem_); + } +}; + +static A *obj = new B; + +void *Thread1(void *x) { + obj->F(); + obj->Done(); + return NULL; +} + +void *Thread2(void *x) { + delete obj; + return NULL; +} + +int main() { + pthread_t t[2]; + pthread_create(&t[0], NULL, Thread1, NULL); + pthread_create(&t[1], NULL, Thread2, NULL); + pthread_join(t[0], NULL); + pthread_join(t[1], NULL); + fprintf(stderr, "PASS\n"); +} +// CHECK: PASS +// CHECK-NOT: WARNING: ThreadSanitizer: data race |