Skywalking process analysis_2 (configuration loading and custom class loader initialization)

Read configuration SnifferConfigInitializer.initializeCoreConfig(agentArgs)This method is to read the configuration file. The file agent.config is read in this method public static void initializeCoreConfig(String agentOptions) {<!– –> //Start loading configuration information priority (the smaller the number, the greater the priority) 1: The age of the startup command nt parameter 2: system environment variable 3: configuration of agent.config […]

Initialization program of 3-axis acceleration sensor QMA6100P

QMA6100P attitude sensor initialization program Article directory Preface 1. Brief description 2. Usage steps 1.IIC basic configuration (iic.c file) 2. Register address of QMA6110P (qma6100p.h file) QMA6100P ID and data reading function (qma6100p.c file) main program Foreword The initialization program of the domestic 3-axis acceleration sensor QMA6100P, the HK32 MCU, and the entire project can […]

(5) Betaflight transplanted to keil – BF_OS initialization

Table of Contents 5.6.3 BF_OS initialization 5.6.3.1 systemInit() function system_clock_config(); cycleCounterInit(); 5.6.3.2 tasksInitData() function (1)TASK_COUNT: (2) task_t (task control block data type): (3) task_attribute_t: 1. const int8_t staticPriority; priority attribute 5.6.3.3 tasksInit(); function (1) queueAdd() function (2)getTask() function (3) clockMicrosToCycles() function (4) Get DWT count 5.6.3 BF_OS initialization (1)dshot It is the control protocol of […]

miniconda configuration manual – basic configuration, initialization, management of virtual environments, and package operations

Table of Contents Preface The first step is to install the software. This step cannot be skipped. The second step is to configure the basic miniconda. This step mainly involves modifying the “.condarc” file. The third step is miniconda initialization. This step cannot be skipped. Step 4. Manage the virtual environment Step 5: Use the […]

SpringMVC source code: Initialization of DispatcherServlet (3)

In the previous part, FrameworkServlet left onRefresh to DispatcherServlet to complete, So go into DispatcherServlet # onRefresh Refresh the Spring container (the sub-container is refreshed here) @Override protected void onRefresh(ApplicationContext context) {<!– –> initStrategies(context); //The parameter context here is the SpringWeb container created before (and later passed as a parameter to the initialization function of […]

A first look at Django – project initialization

Environment preparation Switch pypi source Run the following script to switch the pypi source to the Alibaba Cloud image to avoid network problems during the installation of the python library. #!/bin/bash # Define configuration content config_content=”[global] index-url = http://mirrors.aliyun.com/pypi/simple/ [install] trusted-host=mirrors.aliyun.com ” # Get the user’s home directory user_home=”$HOME” # Make sure the .pip directory […]

A brief analysis of the initialization process of SurfaceFlinger

Table of Contents SurfaceFlinger main function The general process of SurfaceFlinger’s init: Initialize EGL to retrieve EFL context CreateHWComposer Code part: Initialize non-virtual display Code part: EventThread::waitForEvent Rough process: ISurfaceComposer is used to define the Binder IPC interface for accessing SurfaceFlinger (the application’s DisplayEventReceiver sends a request to create an event connection to SurfaceFlinger through […]

Solve Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigExce

Table of Contents Solve Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class com.alibaba.alibrain.quotareport.controller.QuotaReportDayController Problem Description solution 1. Check the visibility of a class 2. Exclude final classes 3. Check Spring version 4. Use other proxy modes Summarize Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate […]

[C language array] Creation, initialization, and use

Article directory Preface 1. ?-dimensional array 1.1 Array creation 1.2 Initialization of array 1.3 Types of arrays 2. How to use ?dimensional array? 2.1 Array subscript 2.2 Printing of array elements 2.3 Loss of array? 2.4 Storage of ?-dimensional arrays in memory 3. sizeof calculates the number of array elements 4. Creation of ?-dimensional array […]