Multi-tasking queue scheduling method based on thread pool

Abstract

The invention discloses a multi-tasking queue scheduling method based on a thread pool. First, a corresponding task queue is created according to task types, and the task queue is not directly associated with work threads in a work thread pool. Then, a task dispatcher is created for receiving a task and dispatching the task to the corresponding task queue according to the type of the task. Finally, when the task is dispatched to the task queue by the task dispatcher, an idle work thread is invoked from the work thread pool to execute the task. After the task is executed, the work thread returns to the work thread pool. The method can adapt to conditions that a large quantity of tasks belonging to different types exist and that all the tasks need to be instantly and orderly processed, one independent work process or thread does not need to be created for each task type, system resources can be greatly and effectively saved, and the work threads in the work thread pool can be created or deleted according to actual conditions, so that the scheduling system adopting the method has great thread count scalability.

Description

technical field [0001] The invention belongs to the technical field of computer engineering and relates to a multi-task queue scheduling method designed based on a working thread pool. Background technique [0002] RTOS (Realtime operation system, real-time operating system) is the foundation and development platform of embedded application software, and is a real-time kernel with high reliability and reliability. RTOS packs resources such as CPU time, interrupts, I / O, timers, etc., and leaves a standard API (Application Program Interface) for users. allocate CPU time among them. [0003] RTOS is usually installed in embedded systems to complete various functions in real time. These embedded systems usually have the characteristics of good real-time performance, small system size, limited resources and no graphical interface. Typical RTOS are: Vxworks, pSOS, Nucleus, eCos, uC / OS-II, etc. [0004] The GUI (Graphic User Interface, Graphical User Interface) system realizes h...

AI Technical Summary

Problems solved by technology

Once there are complex connections between these application function modules, the requirements of these application function modules for system resources and devices (such as Camera, memory) will inevitably conflict, and it is difficult to maintain when implemented;

[0017] 2. If multiple applications to be implemented are used as a single application function module, it will bring huge maintenance difficulties to the collaborative development of multiple programmers, and will cause multiple programmers to develop the same module or a program staff to complete a large-scale module

[0018] The shortcomings or shortcomings of the above-mentioned system are mainly caused by the improper logic design of its scheduling method. Therefore, we need a multi-task queue scheduling method with a more reasonable logic design.

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