forked from OSchip/llvm-project
37 lines
894 B
Plaintext
37 lines
894 B
Plaintext
// RUN: %clang_tsan %s -o %t -framework Foundation
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// RUN: %run %t 2>&1 | FileCheck %s
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#import <Foundation/Foundation.h>
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long global;
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int main(int argc, const char *argv[]) {
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fprintf(stderr, "Hello world.\n");
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dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
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dispatch_semaphore_t sem = dispatch_semaphore_create(0);
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global = 44;
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dispatch_data_t data = dispatch_data_create("buffer", 6, q, ^{
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fprintf(stderr, "Data destructor.\n");
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global++;
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dispatch_semaphore_signal(sem);
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});
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dispatch_release(data);
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data = nil;
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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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data = dispatch_data_create("buffer", 6, q, DISPATCH_DATA_DESTRUCTOR_DEFAULT);
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dispatch_release(data);
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data = nil;
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fprintf(stderr, "Done.\n");
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}
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// CHECK: Hello world.
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// CHECK: Data destructor.
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// CHECK-NOT: WARNING: ThreadSanitizer
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// CHECK: Done.
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