Inter-process data transmission method, computer equipment and storage medium

Abstract

The invention relates to an inter-process data transmission method and device, computer equipment and a storage medium. The method comprises the steps that a first process receives to-be-sent data; the first process searches an idle inter-process buffer area in an idle state from at least two inter-process buffer areas shared by the first process and the second process; the first process stores to-be-sent data in a data buffer area, and the idle inter-process buffer area comprises the data buffer area; and the first process transmits the first address to the second process. By adopting the method, the problem of data loss in inter-process data transmission can be solved.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to an inter-process data transmission method, device, computer equipment and storage medium. Background technique [0002] With the development of communication technology, when data interaction between the main control MCU (micro control module) of the client and the external device of the client often requires cooperation between multiple processes to complete the sending and receiving of data, however, the data is transmitted between processes. In the process of transmission and processing, problems of data loss or system congestion are prone to occur. [0003] In traditional technology, solve above-mentioned problem by introducing semaphore, wait for semaphore in sending process, release semaphore in receiving process, can solve the situation of only single task in sending process, if multiple UARTs (universal Asynchronous transceiver) work independently and...

AI Technical Summary

Problems solved by technology

[0002] With the development of communication technology, when data interaction between the main control MCU (micro control module) of the client and the external device of the client often requires cooperation between multiple processes to complete the sending and receiving of data, however, the data is transmitted between processes. In the process of transmission and processing, data loss or system congestion is prone to occur

[0003] In traditional technology, solve above-mentioned problem by introducing semaphore, wait for semaphore in sending process, release semaphore in receiving process, can solve the situation of only single task in sending process, if multiple UARTs (universal Asynchronous transceiver) work independently and at the same time, a semaphore cannot solve the multi-channel problem, if multiple semaphores are referenced, the sending process will always be waiting

When a semaphore is in the waiting state, the sending process will stop working. At this time, if other UARTs need to be processed by the sending process, the system will not respond, which will cause the system to block and cause the system to freeze.

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