A time processing method of message and embedded multiple task operating system

Abstract

This invention discloses a message timely process method applied in imbedded multi-task operation system, which comprises the following steps: when task receives information, judging current message needs timely process; if it needs timely process, then starting timer; when timer interval generates, starting timer interval process program; executing relative detail work in timer interval process program. This invention discloses a imbed multi-task operation system structure of this method.

Description

technical field [0001] The invention relates to an embedded multitasking operating system, in particular to a method for timely processing messages received by tasks in the embedded multitasking operating system. Background technique [0002] In many embedded operating systems, the system is a multi-task (or multi-process) system, and the scheduling method adopted is preemptive. The switching and execution operations between each task are based on the message mechanism. That is to say, when a task A receives a message, it parses the content of the message and starts to execute the specific operation corresponding to the message; when the execution of this message is completed, task A waits to receive the next message, and follows the received next The instruction content of the message executes the corresponding operation until task A receives and processes all the messages and ends the task. However, during the specific operation of task A executing the message, it may be...

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