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39 lines
939 B
39 lines
939 B
4 months ago
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// RUN: %clang_tsan %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
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#include <dispatch/dispatch.h>
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#include <stdio.h>
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#include <string.h>
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long global = 42;
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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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const char *buffer = "buffer";
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size_t size = strlen(buffer);
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dispatch_data_t data = dispatch_data_create(buffer, size, 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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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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data = dispatch_data_create(buffer, size, q, DISPATCH_DATA_DESTRUCTOR_DEFAULT);
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dispatch_release(data);
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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: Done.
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