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作者: admin, 讨论版: 电脑科学, 发表时间: 2014-02-27 14:16:16 PST
标题: Memory-mapped file
关键字:
Wiki: Memory-mapped file
A memory-mapped file is a segment of virtual memory which has been assigned a direct byte-for-byte correlation with some portion of a file or file-like resource. This resource is typically a file that is physically present on-disk, but can also be a device, shared memory object, or other resource that the operating system can reference through a file descriptor. Once present, this correlation between the file and the memory space permits applications to treat the mapped portion as if it were primary memory.
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※ 来源: homecox.com [来自: 128.]
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