A message buffer management method and device

Abstract

The invention provides a message buffer management method and a message buffer management device. The method comprises the following steps that: a buffer state table used for managing a buffer block state is created; when a message buffer request is received, an idle buffer block is found according to the buffer state table; a preset length of head region space is reserved in a position of the first address of the idle buffer block, then, the current memory address is used as a data first address for storing a message for sending the message buffer request; the address offset of a current data pointer is adjusted at a message header or a current available head region space according to the operation on the message header data in the message processing process; and the adjusted data pointer is used as an input parameter for buffer releasing. From the angle of the whole TTL (Time-to-Live) of the message, the method and the device provided by the invention realize the zero copying transmission of the message among all modules inside a central processing unit; the package throughput performance is improved; and meanwhile, the backup on an original address by a buffer user and the memory resource waste due to the backup can be avoided.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a message buffer management method and device. Background technique [0002] With the development of information technology, the requirements for data processing throughput performance, especially message throughput performance, are also increasing. In the process of sending and receiving data packets and data processing, it is essential to use cache memory blocks to store and transmit data. [0003] In the traditional message processing process, the message is placed at the top of the cache block, that is, the first address of the data of the message is consistent with the first address of the cache; when transferring data between modules, the interaction of message data must be realized by copying and moving data , specifically, after a module processes the packets in buffer B1, it may need to strip or encapsulate the packet headers and then hand them over to buffer...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in the prior art, when encapsulating and decapsulating the data packet header in the cross-protocol layer / cross-module message transmission, it is necessary to apply for a new cache and move the data from the old cache to the new one. In the cache, and then release the old cache, this series of operations causes a performance bottleneck problem; and when the existing technology releases the message cache, it is required that the cache address to be released must be the original cache address obtained at the time of application, which leads to When users of the cache access or process data in the cache, they need to back up the original cache address, which not only increases the memory consumption of the user, but also increases the complexity of the use

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