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Function calling method and device, medium, embedded equipment and operating system

A technology of operating system and function call, applied in the computer field

Pending Publication Date: 2022-04-05
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in an embedded operating system, if the application registers a callback function to the operating system kernel, after a specific event in the operating system kernel occurs, the operating system kernel calls back and executes the callback function registered by the application in the user mode. is not allowed by the embedded operating system

Method used

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  • Function calling method and device, medium, embedded equipment and operating system
  • Function calling method and device, medium, embedded equipment and operating system
  • Function calling method and device, medium, embedded equipment and operating system

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048]Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the contex...

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Abstract

The embodiment of the invention provides a function calling method and device, a medium, embedded equipment and an operating system, and the function calling method comprises the steps that an operating system kernel receives related information of a callback function registered by an application program in a user mode through a first system calling instruction, and stores the related information of the callback function, the callback function corresponds to a set event in an operating system kernel; and in response to triggering of the set event, the operating system kernel sends related information of the callback function to the application program, so that the application program executes the callback function in a user mode.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a function calling method, device, medium, embedded equipment and operating system. Background technique [0002] A callback function is a function that is called through a function pointer. If the party providing the function implementation is called the callee, the callee can define a callback function and register the function pointer of the callback function to the caller. When a specific event or condition occurs, the caller uses the function pointer to call the callback function to respond to the event or condition. [0003] At present, embedded operating systems are used in many electronic devices. The embedded operating systems generally include hardware such as processors, memories, and general-purpose device interfaces, as well as software such as operating system kernels and user applications. [0004] In an embedded operating system, the space that users c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/448G06F9/48G06F9/54G06F21/52
Inventor 杨文成尹鑫
Owner ALIBABA GRP HLDG LTD
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