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0xc010d/EXC_BAD_INSTRUCTION.m

Created September 23, 2011 10:30
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EXC_BAD_INSTRUCTION.m
dispatch_semaphore_t semaphore = dispatch_semaphore_create(1);
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
sleep(1);
dispatch_semaphore_signal(semaphore);
sleep(1);
dispatch_semaphore_signal(semaphore);
sleep(1);
dispatch_semaphore_signal(semaphore);
});
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"Start");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"1");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"2");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"3");
dispatch_release(semaphore);
Raw
OK.m
dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
dispatch_semaphore_signal(semaphore);
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
sleep(1);
dispatch_semaphore_signal(semaphore);
sleep(1);
dispatch_semaphore_signal(semaphore);
sleep(1);
dispatch_semaphore_signal(semaphore);
});
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"Start");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"1");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"2");
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
NSLog(@"3");
dispatch_release(semaphore);
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