In operating systems, resource allocation is an important concept. Resources can be memory, processor time, files, network connections, etc. In the operating system, there is a minimum resource allocation unit, which is widely used in programming practice. This article explains this concept in detail and provides corresponding source code examples.
In an operating system, the smallest unit of resource allocation is usually called a process or thread. A process refers to an instance of a program running in the operating system. It has an independent memory space and execution context and can be run and scheduled independently. A thread is an execution unit in a process. Multiple threads can share the resources of the process, but each thread also has its own execution context. Processes and threads are important concepts in operating systems, and they can be used to allocate and manage resources.
Here is a simple example written in C language that shows how to create processes and threads in the operating system:
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h><