Programmer Group

introduction Go builds a simple and high-performance native network model (I/O multiplexing netpoll based on go) based on I/O multiplexing and goroutine, which provides a simple network programming mode such as goroutine per connection. In this mode, developers use the synchronous mode to write asynchronous logic, which greatly reduces the ment ...

11.2.1.2 find service information In addition to the IP address, each socket address includes an integer port number. Many applications can run on the same host and listen to an IP address, but only one socket can use the port of that address at a time. By combining IP address, protocol and port number, a communication ...

Requirement Description: make a "file upload case" Requirement: upload a picture in the project to the server through the client Operation steps: 1. Create the server and wait for the client to connect 2. Create a client Socket and connect to the server 3. Get the output stream in the Socket stream. Function: ...

By Daniel gusman BurgosGuan ChanglongOriginal text: https://www.percona.com/blog/... Some people say the best password is one you don't have to remember. The auth? Socket plug-in and MariaDB's UNIX? Socket make this idea possible on MySQL. auth_socket: https://dev.mysql.com/doc/ref... unix_socket: https://mariadb.com/kb/en/lib... Although t ...

ThinkPHP using Swoole requires the think-swoole Composer package to be installed, provided the Swoole PECL extension is installed on the system Install think-swoole by executing the composer command in the project root directory of tp5: composer require topthink/think-swoole Say nothing but code directly: Create a new WebSocket.php controller: ...

Design sketch: Four clients are started for testing 1. Log in and get the list of online users2. Private chat function3. Group chat function I found WebSocket by chance. I found that it can communicate in real time and chat online. So I made a demo of chat tool and recorded it Source code Socket.io WebSocket is native to js, and Socket.io is a ...

Today, when installing the Python module matplotlib, the installation is not successful. The prompt "socket.timeout: The read operation timed out" or "Read timed out" is always displayed Because of the high latency of domestic network access to foreign countries, the installation of the module is very slow, and it must not b ...

1. Input man socket into the terminal to check the contents of socket 2. Create socket on the server side /* First parameter domain (network type): pf? INET IPv4 / PF? Inet6 IPv6 The second parameter type (socket type): sock'stream connection oriented -- TCP protocol / sock'dgram connectionless -- UDP protocol The th ...

After the UDP client establishes the socket, it will directly send data with sendto function, and there is also an operation implied, That is, before sending data, UDP will first select a separate UDP port for the socket (at 1024 -5000), set the socket to the bound state. If a UDP client establishes a socket First, the ...

This article still uses xftp to upload gz files, and then operates on xShell. If you do not install these two files, please refer to the previous blog. 1. Upload the downloaded file to the corresponding location with xftp.   2. Unzip the file: tar-zvxf-mysql-5.7.28-linux-glibc2.12-x86_.tar.gz 3. Create mysql folder under / usr/local folder m ...