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bind function of UDP sender in network programming The effect of calling bind function on the sender of upd: assign socket to a specific port. If bind is not called, the kernel will randomly assign a port. The purpose of the upd sender calling the bind function: if there are two senders and the receiver needs to identify which sender is co ...

1. Download Kafka? 2.12-2.0.0.tgz and upload it to / usr/local/kafka / Extract and remove the installation package 2. configuration Modify the config/server.properties of each server cd /usr/local/kafka/kafka_2.12-2.0.0/config vim server.properties Modify several places:broker.id : unique, fill in the number, 10,11,12,13,1 ...

A calculator based on TCP communication, the client sends data to the server through the button, the server calculates and processes the data, and sends the calculation result back to the client. It uses multithreading to enable. Server thread: package com.netproject2; import java.io.DataInputStream; import java.io.DataOutputStr ...

workerman's message push Linux system environment detection Linux system can use the following script to test whether the native PHP environment meets the requirements of WorkerMan. curl -Ss http://www.workerman.net/check.php | php If all the above scripts show ok, it means that the requirements of WorkerMan are met Download of We ...

Recently learning the basic knowledge of python, I find it interesting to go to the network programming section. Write a blog to record, first you can know the basic knowledge of computer network, just refer to relevant books, this article only makes a simple introduction! 1.OSI seven-layer protocol, TCP, UDP protocol First of all, the comput ...

Based on Boost 1.69, this article cuts out some deprecated or different configured code blocks that are not related to the topic of this article when displaying the source code. Service type resolving service socket/file operation timer ... service resolution Here, take the reactive socket service that provides services around reactor as an e ...

Start of server The main function of Redis server is in server.c. // server.c int main(int argc, char **argv) { struct timeval tv; int j; /* Set some constants of the server */ /* We need to initialize our libraries, and the server configuration. */ #ifdef INIT_SETPROCTITLE_REPLACEMENT spt_init(argc, argv); #endif setl ...

After posix standard was introduced, socket has been well supported on all major OS platforms. Golang is a cross platform programming language with runtime. The socket API provided to developers in Go is based on the native socket interface of the operating system. But the behavior of socket interface in golang is different from that of native ...

Managed and unmanaged resources In. Net, there are two kinds of resources used by objects: managed resources and unmanaged resources. Managed resources are managed by CLR and do not need to be controlled manually by developers. Managed resources in. Net mainly refer to "memory of objects in the heap"; unmanaged resources refer to some ...

Multiple real columns and one principal and many subordinate Create a directory for database information [root@db200 ~]# mkdir /data/330{7..9} –p Create a file to hold the profile [root@db01 ~]# touch /data/330{7..9}/my.cnf Edit 3307 profile [root@db01 ~]# vim /data/3307/my.cnf [mysqld] basedir=/application/mysql datadir=/data/3307/data so ...