#include <CoreFoundation/CoreFoundation.h>
#include <dispatch/dispatch.h>
#include <unistd.h>
#include <Block.h>
const char *whoami = "nobody";
void EnqueueStuff(dispatch_queue_t q)
{
__block CFIndex counter;
dispatch_async(q, ^{
counter = 0;
});
dispatch_async(q, ^{
counter++;
dispatch_async(q, ^{
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;
}