Nginx dynamic module loading method and device

Abstract

The invention provides an Nginx dynamic module loading method and device. The Nginx dynamic module loading method comprises the following steps of reading a compatibility judgment character string in an Nginx executable file as a first judgment character string; obtaining a compatibility judgment character string of a loaded dynamic module as a second judgment character string; comparing the first judgment character string and the second judgment character string; and modifying the second judgment character string in the loaded dynamic module under the condition that the first judgment character string and the second judgment character string are not identical in order to make the first judgment character string and the second judgment character string be identical to guarantee the loaded dynamic module to meet a compatibility check condition of the Nginx executable file. Through research of a compatibility check mechanism for the Nginx executable file to load the dynamic module, the dynamic module is guaranteed to meet the compatibility check condition of the Nginx executable file, so that the dynamic module is loaded in the environments except for the generation environment of the dynamic module, and thus the compatibility of an Nginx dynamic library is improved.

Description

technical field [0001] The invention relates to a Web server-side program, in particular to a method and a device for loading an Nginx dynamic module. Background technique [0002] Nginx is a performance-oriented HTTP server, which has the advantages of less memory and high stability. As an efficient Web server-side program, it is widely used in various Internet fields. [0003] In order to ensure the stable operation of the program, Nginx did not support dynamic modules (dynamic libraries) for a long period of time. It was not until version 1.9.11 in 2015 that the dynamic module loading function was added. With dynamic modules, third-party or Nginx official modules can be selectively loaded at runtime. However, due to the conservative attitude of the Nginx developer towards dynamic modules, technical restrictions have been added to the loading of dynamic modules. It must be ensured that the system that calls the dynamic module is consistent with the underlying environment...

AI Technical Summary

Problems solved by technology

However, due to the conservative attitude of the Nginx developer towards dynamic modules, technical restrictions have been added to the loading of dynamic modules. It must be ensured that the system calling the dynamic module is consistent with the underlying environment of the system where the dynamic module is generated, so that the use of Nginx dynamic modules is relatively normal. The compatibility of the dynamic modules of Nginx adds a layer of compatibility constraints, and this constraint makes most Nginx dynamic modules unable to be used by Nginx other than its production environment, which greatly reduces the compatibility of Nginx dynamic modules

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