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42 lines
988 B
42 lines
988 B
// 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 my_global;
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long my_global2;
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dispatch_semaphore_t done;
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void callback(void *context) {
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my_global2 = 42;
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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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fprintf(stderr, "start\n");
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done = dispatch_semaphore_create(0);
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dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
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my_global = 10;
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, ^{
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my_global = 42;
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dispatch_semaphore_signal(done);
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});
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my_global2 = 10;
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dispatch_after_f(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, NULL, &callback);
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dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
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dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
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fprintf(stderr, "done\n");
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return 0;
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}
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// CHECK: start
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// CHECK: done
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