A Refactoring Method to Reduce Non-reentrant Functions

Abstract

The present invention relates to a refactoring method for reducing non-reentrant functions, comprising the following steps: S10, analyzing and realizing the calling relationship between functions according to the external interface, and identifying all non-reentrant functions; S20, constructing a function calling relationship mapping table , classifying the non-reentrant functions based on different global resources; S30, constructing an encapsulation function separately for each global resource, and using the encapsulation function as a new call interface for the corresponding non-reentrant function to call. The beneficial effects of the reconfiguration method for reducing non-reentrant functions of the present invention include: 1. Effectively reduce non-reentrant functions in software modules, reducing the risk of resource conflicts during multi-task operation. 2. The degree of coupling between functions is further reduced, which improves the testability of the code. 3. The function's access to global resources is more centralized, and it is easy to monitor and track when the program is running. 4. The refactored function call relationship is clearer.

Description

technical field [0001] The invention relates to the field of modulation and reception of vehicle broadcast signals, in particular to a reconstruction method for reducing non-reentrant functions. Background technique [0002] At present, most embedded products use a multi-task preemptive system. In this multi-task preemptive software environment, it is particularly important to avoid global resource preemption conflicts. It is unavoidable that there are more or less non-reentrant functions in the system. Since the non-reentrant functions access global resources, when they are called concurrently by multiple tasks, it is easy to cause resource conflicts. [0003] The greater the number of non-reentrant functions, the greater the risk of resource conflicts and the lower the system stability. Therefore, some methods need to be used to reduce the non-reentrant functions in software modules to reduce the risk of resource conflicts. Contents of the invention [0004] In order to...

AI Technical Summary

Problems solved by technology

Inevitably, there are more or less non-reentrant functions in the system. Since the non-reentrant functions access global resources, when they are called concurrently by multiple tasks, it is easy to cause resource conflicts.

[0003] The greater the number of non-reentrant functions, the greater the risk of resource conflicts and the lower the system stability. Therefore, some methods need to be used to reduce the non-reentrant functions in software modules to reduce the risk of resource conflicts

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