Streamed data write-in method based on embedded file system

Abstract

The invention relates to a streamed data write-in method based on an embedded file system. The method includes that streamed data of a to-be-written in disk are received; the received streamed data are organized and cached in a chain list structure, and when length of the cached data reaches a set threshold value, a write operation that writes the cached streamed data in the disk is triggered; the streamed data are separated from a cache, data length of the to-be-written in disk at the time is calculated, the length is required to be integer multiples of the size of a disk sector, data of corresponding sections are kept continuous physically and logically, and corresponding data length of subchain tables after separation is required to be equal to the data length of the to-be-written in disk at the time; the separated streamed data are written in the disk, a lower layer write interface is called to write the separated streamed data in the disk, an asynchronous non-blocking mode is applied when the data are written in, and the write operation of next time is tried to be triggered after the file system receives a message that the data are successfully written in the disk in the process of writing the data in the disk in the non-blocking mode.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a streaming data writing method based on an embedded file system. Background technique [0002] With the rapid development of the Internet, storage technology and various storage systems have also been developed rapidly. These storage systems provide convenient, fast and efficient storage and access services for a large amount of Internet information and multimedia data information. [0003] Embedded system is a special computer system that is completely embedded in the controlled device and designed for specific applications. The embedded system has limited resources and simple structure. In view of its particularity and specificity, general-purpose Operating system and file system, but custom file system for embedded system for specific application scenarios. The application range of embedded systems is very wide. It is impossible to have a file system that dominates all ...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a streaming data writing method based on an embedded file system to solve the problems of low data writing efficiency, insufficient throughput and concurrency performance in the prior art

Images