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38 lines
794 B
38 lines
794 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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long global;
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dispatch_semaphore_t done;
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void handler(void *arg) {
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fprintf(stderr, "global = %ld\n", global);
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dispatch_semaphore_signal(done);
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}
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int main(int argc, const char *argv[]) {
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done = dispatch_semaphore_create(0);
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dispatch_queue_t queue =
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dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT);
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dispatch_source_t source =
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dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGHUP, 0, queue);
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global = 42;
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dispatch_source_set_registration_handler_f(source, handler);
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dispatch_resume(source);
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dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
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return 0;
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}
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// CHECK: global = 42
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