http://blog.csdn.net/zhihua_w

In ordinary projects, we always encounter the problem of executing a method task on time. If we have the authority of the server, we can set the timing task directly on the server, such as in Windows task planning program, and write scripts in Linux for execution. If we don't have server privileges, how can we use the program code of the proj ...

Posted on Wed, 09 Jan 2019 23:30:11 -0800 by Jragon

Under Linux: Hardware Solution of Live555+S5pV210 mfc Module

Original Address: uuuuuuuuuuuu http://www.tuicool.com/articles/FzYviy Related articles 1. Porting Linux Kernel based on Samsung S5PV210 http://www.docin.com/p-1306923680.html This paper introduces Live555 as rtsp client, s5pv210 as media terminal, and Nv12 image sequence is hard decoded. mplayer plays the yuv command: mplayer - ...

Posted on Tue, 08 Jan 2019 17:39:10 -0800 by SpinCode

The Use of PF_PACKET under Linux, the server and client Programs of RARP

Original Address: uuuuuuuuuuuu https://blog.csdn.net/eqiang8271/article/details/8489531 http://blog.csdn.net/zhoujunyi/article/details/1649073 1. Introduction The PF_PACKET interface is provided in linux to operate the data of link layer.   2. Usage Define a pf_packet = socket(PF_SOCKET, SOCK_RAW, ht ...

Posted on Tue, 08 Jan 2019 14:24:12 -0800 by niroshana35

Deployment of Django and Vue.js applications using Docker Compose

Preface The main content of this paper is about using docker-compose practice to deploy back-end django-rest-framework and front-end vue.js applications. Record some pits encountered and solutions. Preparing the Docker-compose environment System: Ubuntu 16.04 (Aliyun)User name in code: test Install Docker # install docker ## prepare echo 'Prepa ...

Posted on Mon, 07 Jan 2019 23:18:11 -0800 by Matt Kindig

Rhel6.5 compiles linux kernel 2.6.32-220.23.1.el6, configures LVS to support FulllNat mode

There are three commonly used modes of LVS. These three modes are provided by default on common Linux distributions, but there is also an open source mode, FullNat. Official documents indicate that it needs to be compiled in combination with kernel 2.6.32-220.23.1.el6. This article is mainly used to demonstrate the com ...

Posted on Mon, 07 Jan 2019 15:33:10 -0800 by chewydence

jdk source - > concurrency - > Unsafe&Atomic

The synchronized keyword is similar to the pessimistic lock mechanism in java. Next, we introduce an optimistic lock mechanism in java, Unsafe class. CAS CAS introduction The full name of CAS is Compare And Swap, i.e. comparative exchange. It is a lock-free idea in concurrent execution. It mainly contains three parameters: /** *V Values in main ...

Posted on Mon, 07 Jan 2019 12:36:09 -0800 by hemlata

Analysis of JVM Fatal Error Log (hs_err_pid.log)

When a fatal error occurs in jvm, an error file hs_err_pid < PID > log is generated, which includes important information leading to jvm crash. By analyzing the file, the root cause of crash can be located, so as to improve the stability of the system. When crash occurs, the file is generated into the working directory by default, but the ...

Posted on Sun, 06 Jan 2019 00:03:09 -0800 by austinderrick2

Raspberry Pie 3B + Install CentOS 7 for ARM64 in Taylor's Raspberry Pie

I. Introduction 1.1 Person Profile Taylor 80 Post-programmer, love technology, pursuit of the ultimate, love to play, love to toss, 10 years.NET Development, familiarity.NET,Java,Python And other technologies. Introduction to 1.2 raspberry pie What is raspberry pie? Raspberry Pi, an open source single-board computer the size of a credit ...

Posted on Sat, 05 Jan 2019 22:33:10 -0800 by whmeeske

Python Interface (3): An Example of Python

I. Problems       Python The mutual invocation between modules and C/C++ dynamic libraries will be involved in practical applications. This paper summarizes. 2. Python calls C/C++. 1. Python calls C dynamic link library Python calls C libraries relatively simple, without any packaging packaged into so, and then use python' ...

Posted on Fri, 04 Jan 2019 10:18:11 -0800 by magi

Awk grammar (BEGIN, END), field and separator (-F| FS), built-in variables (FNR, NR, NF, OFS, ORS, RS)

Awk introduction Awk is an interpretative programming language designed for text processing and is often used as a data extraction and reporting tool. Awk represents the first letters of the three authors'surnames: Alfred Aho, Peter Weinberger and Brain Kernighan. At present, awk compiled versions are commonly used in Linux, ...

Posted on Thu, 03 Jan 2019 15:24:11 -0800 by sadaf