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//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include <CoreFoundation/CoreFoundation.h>
#include <dispatch/dispatch.h>
#include <unistd.h>
//#import <Foundation/Foundation.h>
#include <Block.h>
// CONFIG rdar://problem/6371811
const char *whoami = "nobody";
void EnqueueStuff(dispatch_queue_t q)
{
__block CFIndex counter;
// above call has a side effect: it works around:
// <rdar://problem/6225809> __block variables not implicitly imported into intermediate scopes
dispatch_async(q, ^{
counter = 0;
});
dispatch_async(q, ^{
//printf("outer block.\n");
counter++;
dispatch_async(q, ^{
//printf("inner block.\n");
counter--;
if(counter == 0) {
printf("%s: success\n", whoami);
exit(0);
}
});
if(counter == 0) {
printf("already done? inconceivable!\n");
exit(1);
}
});
}
int main (int argc, const char * argv[]) {
dispatch_queue_t q = dispatch_queue_create("queue", NULL);
whoami = argv[0];
EnqueueStuff(q);
dispatch_main();
printf("shouldn't get here\n");
return 1;
}
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