Method for realizing definite software operating time in single task operating environment

Abstract

The invention discloses a method for realizing definite software operating time in a single task operating environment, which is characterized by comprising the following steps of: (1) programming a function meeting requirements by using a conventional programming method; (2) dividing external input, external output and algorithm of the function definitely; (3) establishing a local variable for the external output; (4) finding out all switch statements in the function; (5) establishing local variables for the external output of all the switch statements; (6) cutting the programs of all the switch statements out of the switch statements, and modifying the output of the switch statements into the local variables of the output of the switch statements; (7) in the switch statements, adding the local variables of the output of the switch statements to an assignment statement output by a switch statement operation result and an assignment statement for a global variable; (8) adding the switch statement operation result to follow-up program operation; (9) assigning the local variable of the external output to the external output; and finally (10) modifying functions called in the program. The invention can ensure that the operating time of the same function is definite without change when outputs and routes are different.

Description

technical field

[0001] The invention relates to a meteorological data analysis and processing technology, in particular to a method for obtaining a three-dimensional wind field with high accuracy after a series of processing using data obtained by wind profile radar, specifically a method for using wind profile radar Method for obtaining 3D wind field. Background technique

[0002] As we all know, in most software application fields, the running time of software is measured according to the worst running time index of the software. But in some fields with high reliability and high safety requirements, such as control software in aerospace, rail transit, nuclear power and other fields, it is more hoped that the software will have a definite value for each running time under any normal operating conditions. There are many factors that lead to the uncertainty of software running time. From the software point of view, the main reason is that different branch programs have a gre...