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Invention Grant
CN104980612B 图像形成装置及内存管理方法 失效 - 权利终止

图像形成装置及内存管理方法
Abstract:
本发明提供图像形成装置及内存管理方法。该图像形成装置包括第一区域分配单元，该第一区域分配单元在内存的区域中分配出第一处理所需尺寸的第一区域，该第一处理包含一个以上的第二处理。该图像形成装置进一步包括第二区域划分单元、释放用区域划分单元。第二区域划分单元在第一区域中针对每个第二处理划分出第二处理所需尺寸的第二区域。释放用区域划分单元在针对第一处理中包含的所有第二处理划分出第二区域时，从第一区域中划分出作为除了第二区域之外的区域且应释放的释放用区域。进而第二区域划分单元不拘于作为内存管理单位的页单位来划分第二区域。进而释放用区域划分单元按页单位来划分释放用区域。根据本发明，内存的使用效率提高。
Abstract(English):

A first-region allocating unit of an electronic device allocates a first region having a size required for a first process. The first process includes at least one second process in a region of the memory. A second-region dividing unit divides a second region having a size required for the second process by the second process. A region-for-release dividing unit divides a region for release from the first region when the second-region dividing unit has allocated the second regions for all the second processes included in the first process. The region for release is a region other than the second region and to be released. The second-region dividing unit divides the second region regardless of a page basis used as a unit in the memory management. The region-for-release dividing unit divides the region for release on the page basis.

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