A lightweight file system management method in a communication device

Abstract

A lightweight file system management method in a communication device comprises a file storage process, a file retrieval process and a file operation process. In the file storage process, the file header information and the file data are separately stored in a system storage device, and the file header information content comprises file mapping information, a file size, a file offset pointer, a space use identifier and a file system containing a file mapping information table; the file retrieval process comprises the following steps: the file header information is retrieved in segments according to the file name, and whether the file header information is used or not is judged by the space use identification. The file operation process comprises obtaining a file name of a terminal, performing file retrieval on the file name, matching the file header information corresponding to the file name, and directly operating the physical storage address of the file data. The invention can directly read and write the physical address of the file data only by searching the file header information, thus reducing the file searching speed and improving the file operating efficiency.

Description

technical field [0001] The invention relates to the field of communication systems, in particular to a light-weight file system management method in communication equipment. Background technique [0002] The file system is the method of organizing files on the storage device. Transplanting the traditional file system in the actual embedded system application needs to occupy a large amount of memory resources, and the size of the file system itself also occupies a large device storage space. Storage capacity has certain requirements. For the current mainstream microprocessors on the market, the memory size and storage capacity are very limited, and the transplantation of mainstream file systems needs to occupy precious memory resources. Therefore, the traditional file system can no longer meet the file management requirements of low-cost, small-capacity, and low-power platforms. Especially in the field of communication, device miniaturization is an important development dire...

AI Technical Summary

Problems solved by technology

The invention proposes a lightweight file management solution, which is suitable for transplanted simple operating system platforms or embedded device platforms without operating systems, supports basic file operation methods in mainstream file systems, and solves the problem of low cost and small capacity , Basic file operation issues on low-power platforms

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