How To Install libevent on CentOS 7

In this tutorial we learn how to install libevent on CentOS 7. libevent is Abstract asynchronous event notification library

Introduction

In this tutorial we learn how to install libevent on CentOS 7.

What is libevent

The libevent API provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. libevent is meant to replace the asynchronous event loop found in event driven network servers. An application just needs to call event_dispatch() and can then add or remove events dynamically without having to change the event loop. The libevent API provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. libevent is meant to replace the asynchronous event loop found in event driven network servers. An application just needs to call event_dispatch() and can then add or remove events dynamically without having to change the event loop.

We can use yum or dnf to install libevent on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install libevent.

Install libevent on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install libevent using yum by running the following command:

sudo yum -y install libevent

Install libevent on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install libevent using dnf by running the following command:

sudo dnf -y install libevent

How To Uninstall libevent on CentOS 7

To uninstall only the libevent package we can use the following command:

sudo dnf remove libevent

References

Summary

In this tutorial we learn how to install libevent on CentOS 7 using yum and dnf.