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2014/10/15 ¤U¤È 10:07:03
iphone Programming Glossary: dispatch_time_foreverHow do I correctly use ABAddressBookCreateWithOptions method in iOS 6? http://stackoverflow.com/questions/12083643/how-do-i-correctly-use-abaddressbookcreatewithoptions-method-in-ios-6 ^ bool granted CFErrorRef error accessGranted granted dispatch_semaphore_signal sema dispatch_semaphore_wait sema DISPATCH_TIME_FOREVER dispatch_release sema else we're on iOS 5 or older accessGranted YES if accessGranted NSArray thePeople __bridge_transfer..
NSURLConnection blocking wrapper implemented with semaphores [closed] http://stackoverflow.com/questions/13733124/nsurlconnection-blocking-wrapper-implemented-with-semaphores NO return self void consume void ^ id block BOOL finished NO while finished dispatch_semaphore_wait consumerSemaphore DISPATCH_TIME_FOREVER finished _finished if finished block _object dispatch_semaphore_signal producerSemaphore void produce id object _object.. _object object _finished NO dispatch_semaphore_signal consumerSemaphore dispatch_semaphore_wait producerSemaphore DISPATCH_TIME_FOREVER void finish _finished YES dispatch_semaphore_signal consumerSemaphore void dealloc dispatch_release consumerSemaphore dispatch_release..
http://stackoverflow.com/questions/19027118/fetch-contacts-in-ios-7 ^ bool granted CFErrorRef error accessGranted granted dispatch_semaphore_signal sema dispatch_semaphore_wait sema DISPATCH_TIME_FOREVER else we're on iOS 5 or older accessGranted YES if accessGranted #ifdef DEBUG NSLog @ Fetching contact info #endif ABAddressBookRef..
Wait for assetForURL blocks to be completed http://stackoverflow.com/questions/7234445/wait-for-assetforurl-blocks-to-be-completed
Why does this code cause “EXC_BAD_INSTRUCTION”? http://stackoverflow.com/questions/8287621/why-does-this-code-cause-exc-bad-instruction dispatch_semaphore_t aSemaphore dispatch_semaphore_create 1 dispatch_semaphore_wait aSemaphore DISPATCH_TIME_FOREVER dispatch_release aSemaphore When the program runs to dispatch_release aSemaphore it will cause EXC_BAD_INSTRUCTION and then..
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