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Copy-on-write

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Revision as of 17:08, 5 September 2008 by Muro Bot (talk | changes) (robot Adding: cs, de, fr, ja, pl, ru Modifying: en)

Copy-on-write is a means of optimisation in Computer Science. When several callers ask for the same resource, they can all be given a pointer to the same address. Only when they try to change the resource does a local copy need to be made. This happens without the caller noticing. It is done so that all the other callers do not see the change they did not do.