A lightweight file system management method in communication equipment

Abstract

The present invention provides a lightweight file system management method in a communication device, including a file storage process, a file retrieval process, and a file operation process. In the file storage process, file header information and file data are stored separately in a system storage device. The content of the file header information includes file mapping information, file size, file offset pointer, and space usage identifier, and the file system contains a file mapping information table; the file retrieval process includes performing segmented retrieval of the file header information according to the file name , and judge whether the file header information is used through the space use identifier; the file operation process includes obtaining the terminal file name, 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 retrieving the header information of the file, reduces the file retrieval speed, and improves the file operation 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...

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