diff options
Diffstat (limited to 'test/tsan/libdispatch/serial-queue-norace.c')
-rw-r--r-- | test/tsan/libdispatch/serial-queue-norace.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/tsan/libdispatch/serial-queue-norace.c b/test/tsan/libdispatch/serial-queue-norace.c new file mode 100644 index 000000000..17fb5f1c7 --- /dev/null +++ b/test/tsan/libdispatch/serial-queue-norace.c @@ -0,0 +1,38 @@ +// RUN: %clang_tsan %s -o %t +// RUN: %run %t 2>&1 | FileCheck %s + +#include "dispatch/dispatch.h" + +#include <stdio.h> + +long global; + +int main() { + fprintf(stderr, "Hello world.\n"); + dispatch_semaphore_t done = dispatch_semaphore_create(0); + + dispatch_queue_t q1 = dispatch_queue_create("my.queue1", DISPATCH_QUEUE_CONCURRENT); + dispatch_queue_t q2 = dispatch_queue_create("my.queue2", DISPATCH_QUEUE_SERIAL); + + global = 42; + for (int i = 0; i < 10; i++) { + dispatch_async(q1, ^{ + for (int i = 0; i < 100; i++) { + dispatch_sync(q2, ^{ + global++; + }); + } + }); + } + + dispatch_barrier_async(q1, ^{ + dispatch_semaphore_signal(done); + }); + + dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER); + fprintf(stderr, "Done.\n"); +} + +// CHECK: Hello world. +// CHECK: Done. +// CHECK-NOT: WARNING: ThreadSanitizer |