| 摘要 |
A new user-defined object type and method of making the object type. A new object type is an m-file. M-files are files which require very little physical storage space, but appear to active processes to be a predetermined size up to the maximum user supported file size. A rule is associated with a unique file identifier such that any access of the file is also an invocation of the rule transparent to the requesting application. The rule generates code to fill the requested block of the requested file.
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