Inter-program data exchange and synchronization method

Abstract

The invention discloses an inter-program data exchange and synchronization method. The method comprises the following steps: S1, starting a data acquisition program; s2, reading measurement data and encoding the measurement data; s3, calling a data exchange function; s4, creating or opening a memory mapping file, naming the memory mapping file, and creating or opening a write operation mutual exclusion lock and a read operation mutual exclusion lock of the memory mapping file; s5, forcibly entering a data writing operation by the data acquisition program; s6, locking a write operation mutual exclusion lock, and writing the acquired data into the memory mapping file through a data exchange function; s7, sending a custom message to the data display program, and notifying the data display program to read the data from the memory mapping file; and S8, the data display program releases the write operation mutual exclusion lock, and the data acquisition program locks the read operation mutual exclusion lock. According to the method, the effect of interface synchronous display between programs is achieved, the data are transmitted in the mode of customizing the message and the memory mapping file, and the data security is greatly protected.

Description

technical field [0001] The invention belongs to the field of automatic test and measurement, in particular to a data exchange and synchronization method between programs. Background technique [0002] In the field of automatic test and measurement, it is often necessary to collect and display the measurement results in instruments and meters. In the open automatic test system, the data acquisition program is an independent executable program, and the data display platform is an independent program, so the data exchange and synchronization between the two become the key point of the open automatic test system design. difficulty. In this paper, the open automatic test system is mainly used for the research and development, debugging and production of electronic components, radio frequency components, microwave components and other electronic products, so as to ensure that only qualified test objects can be put into use. An open automatic test system generally consists of aut...

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Problems solved by technology

[0030] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a simple function to realize data interaction, solve the problem of data synchronization between programs, and realize the inter-program data exchange with the effect of synchronous display of inter-program interface with the synchronized method

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