This package provides semi-portable access to hardware provided atomic memory operations. These might allow you to write code: - That does more interesting things in signal handlers. - Makes more effective use of multiprocessors by allowing you to write clever lock-free code. Note that such code is very difficult to get right, and will unavoidably be less portable than lock-based code. It ia also not always faster than lock-based code. But it may occasionally be a large performance win.
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