diff options
Diffstat (limited to 'lib/tsan/output_tests/static_init3.cc')
-rw-r--r-- | lib/tsan/output_tests/static_init3.cc | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/tsan/output_tests/static_init3.cc b/lib/tsan/output_tests/static_init3.cc new file mode 100644 index 0000000..718f811 --- /dev/null +++ b/lib/tsan/output_tests/static_init3.cc @@ -0,0 +1,46 @@ +#include <pthread.h> +#include <stdlib.h> +#include <stdio.h> +#include <sched.h> + +struct Cache { + int x; +}; + +Cache g_cache; + +Cache *CreateCache() { + g_cache.x = rand(); + return &g_cache; +} + +_Atomic(Cache*) queue; + +void *Thread1(void *x) { + static Cache *c = CreateCache(); + __c11_atomic_store(&queue, c, 0); + return 0; +} + +void *Thread2(void *x) { + Cache *c = 0; + for (;;) { + c = __c11_atomic_load(&queue, 0); + if (c) + break; + sched_yield(); + } + 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, Thread2, 0); + pthread_join(t[0], 0); + pthread_join(t[1], 0); +} + +// CHECK: WARNING: ThreadSanitizer: data race |