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lukewar/block asynchronous

Last active August 29, 2015 14:10
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Blocking asynchronous operation.
Raw
block asynchronous
NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
dispatch_group_t dispatchGroup = dispatch_group_create();
dispatch_group_enter(dispatchGroup);
[task runWithCompletion:^{
dispatch_group_leave(dispatchGroup);
}];
dispatch_group_wait(dispatchGroup, DISPATCH_TIME_FOREVER);
}];
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