Clock synchronization method, clock synchronization device and computer readable storage medium

Abstract

The invention relates to a clock synchronization method, a clock synchronization device and a computer readable storage medium. The clock synchronization method comprises the following steps: sending a clock synchronization request to a server and recording a first moment when the clock synchronization request is sent; receiving response data sent by the server and recording a second moment during receiving, wherein the response data comprises a third moment when the server receives the clock synchronization request and a fourth moment when the server sends the response data; obtaining clock deviation between the client and the server according to the first moment to the fourth moment; and obtaining a system clock of the client, and obtaining a synchronous clock of the server in combination with the clock deviation. According to the clock synchronization method, the clock synchronization request is sent to the server, the response data sent back by the server is received, and the clock deviation between the client and the server is obtained according to several sent and received moments, so that the system clock of the client is adjusted, and the system clock is synchronized with the clock of the server.

Description

technical field [0001] The application belongs to the field of computer software applications, and in particular relates to a clock synchronization method and a clock synchronization device. Background technique [0002] With the rapid development of browser technology and the popularization of high-performance handheld devices, the social demand for Web interaction means is getting higher and higher. Comes with greater responsibility. In some scenarios that require high timeliness, such as a widely used online activity (such as a game), the browser page needs to capture the key state of the server to perform operations such as changing views, refreshing, and initiating network requests. If the state lasts for a short time, the browser page may miss or execute the expected action early due to time out of synchronization, which will bring troubles to the user experience; in addition, a large number of devices on the market currently have the problem of clock inaccuracy at th...

AI Technical Summary

Problems solved by technology

In some scenarios that require high timeliness, such as a widely used online activity (such as a game), the browser page needs to capture the key state of the server to perform operations such as changing views, refreshing, and initiating network requests. If the state lasts for a short time, the browser page may miss or execute the expected action early due to time out of synchronization, which will bring troubles to the user experience; in addition, a large number of devices on the market currently have the problem of clock inaccuracy at the front and back end, for example, when the system time On devices that are automatically set, due to certain inaccuracies between various synchronization sources, there are considerable errors between devices; in addition, business behavior is based on the server's time, which may not be set in any Synchronization or synchronization with completely different sources, so that the time between the client and the server cannot be synchronized, and cannot meet the timeliness requirements

[0003] Therefore, in scenarios that require a high degree of timeliness, in order to keep the time error between the client and the server as small as possible, the time of the server is often obtained by polling the server through network requests. Polling the status of the server can be effective and timely Synchronize the business state, including the server clock, but polling the server state requires frequent network requests, and the server occupies a large amount of computing resources, resulting in wasted bandwidth between the client and the server, and low ROI (return on investment) , and the server clock will be greatly affected by the round-trip delay of network requests during transmission; while reducing the polling frequency can save resources, but obviously sacrifices timeliness, which is contrary to the goal of high timeliness

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