Large-capacity file splitting method, device and system

Abstract

The invention is applied in the field of computer software, and provides a large-capacity file splitting method, a large-capacity splitting device and a large-capacity file splitting system. The method comprises the following steps of: according to the capacity of a memory and sizes of each piece of data in a split file, acquiring data volumes of each sub-file obtained by the splitting; according to a total data volume of the split file and the data volumes of each sub-file obtained by the splitting, acquiring the data volumes of each sub-file obtained by the splitting, cyclically reading and writing the data in batches and splitting the split file. In the method, the device and the system, the file reading channel, the file writing channel and a mode of cyclically reading and writing the data in batches in a form of dynamic arrays are adopted to accurately split a large-capacity binary file, so program splitting speed is high, the performance is stable and the problem of operation failure caused by the exhaust of the memory is solved; and the sub-files obtained by the splitting can be directly burned into the memory for data decomposition application in combination with a singlechip.

Description

technical field [0001] The invention belongs to the field of computer software, and in particular relates to a large-capacity file segmentation method, device and system. Background technique [0002] At present, large-capacity storage devices such as optical discs, U disks, and mobile hard disks have been widely used, and are often used for the storage and transportation of large-capacity files. Few, and it is difficult to directly use these large-capacity storage devices as the carrier of file data decomposition applications, but use small-capacity memory as a removable and reusable carrier, combined with single-chip microcomputers for file data decomposition applications. For example, in the color TV production industry, it is necessary to burn a different HDCP KEY data in each TV product. This data is a binary file with the unit of order quantity. ), and the memory data storage capacity is small, such as the capacity of the large-capacity mass memory W27E040 is only K-l...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a large-capacity file segmentation method, which aims to solve the problems of large system resource overhead and poor stability when a large-capacity file is read into the memory at one time for segmentation processing.

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