Multi-protocol message parsing method and system based on file mode

Abstract

The invention is applicable to the technical field of data communication, and provides a multi-protocol message parsing method based on a file mode. The method comprises the steps of 1, initializing algorithm memory resources and file handles; 2, reading data flows from a communication port, and storing the data flows in a data caching area of a memory; 3, reading data in the data caching area, writing the data into a message file, and meanwhile clearing an old message file, thus obtaining an updated message file; 4, sharing the message file with all protocol stack parsers; 5, repeating the steps 2-4; 6, reading the data in the updated message file and judging whether the protocol message exists in the data through the distributed file handle by each protocol stack parser; and 7, if the protocol message exists, responding to the application of the message after processing according to the protocol. According to the method provided by the invention, the problem that in the existing single processing mode, the respective protocols are searched in turns and the overflowing of the receive buffer is easily caused so that data loss is caused is solved.

Description

technical field [0001] The invention belongs to the technical field of data communication, and in particular relates to a file-based multi-protocol message analysis method and system. Background technique [0002] In a communication channel, due to debugging or other factors, it is necessary to support multiple protocols. When parsing communication data, there is a technology that uses a single processing mode, that is, when a packet of data comes, first use one protocol to parse it, if it is not correct, then use the next one Protocol analysis, and so on. This processing mode needs to search for the corresponding protocol in turn under heavy communication tasks. The resource overhead is very large, and it is easy to cause data loss due to receiving buffer overflow; especially in two-way multi-master and multi-slave communication. The software layer cannot be divided, and it is easy to cause message loss. [0003] At the same time, if a single processing mode is adopted, it...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a file-based multi-protocol message analysis method and system, aiming to solve the problem of easy reception due to taking turns to search for each protocol in the existing multi-protocol single processing mode on the same channel. Data loss due to buffer overflow

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