man getpid

Create a process:/* ******************* * Function: Create a new process by copying the current process (as with the parent process) and performing the same position *pid_t: generally 16-bit signed integer number, not enough to typedef * Return

(1) Basic Process Environment A process is an execution of a program. It is a program that runs in its own virtual address space and has independent functions. Processes are the basic unit for allocating and releasing resources. When a program is

Fork,vfork,cloneUNIX standard replication process system calls fork (that is, fork), but Linux,bsd and other operating systems do not only implement this one, specifically, the Linux implementation of three, Fork,vfork,clone (specifically Vfork

In the morning I heard people say that part of a program is a kernel state, the other part is User state, how it needs to be. Suddenly wanted to know, the user's program can call the kernel function directly. (now suddenly found that the problem is

Here we go. Start with the Linux namespace first.Brief introductionLinux namespace is a method of kernel-level environmental isolation provided by Linux. I don't know if you remember a long time ago Unix has a system call called chroot (by modifying

11. Process Control TheoryProcess: A process is a run of an application with a certain independent function. A program that is not running is not called a process, only a program that is running will produce a process.Characteristics of the process:

First, the basic Knowledge Source program compilation/***hello.c***/int main () {printf ("hello,world.\n"); return 0;}Gcc-o Hello hello.c-O Generate executable file-C Output only target code-G to debugMakefile Writing# # # #makefile1 # #MAIN:MAIN.O

Basic Docker technology: Linux Namespace (I)GuideDocker is the most popular technology nowadays. Many people think that Docker is a new technology. In fact, Docker is not a new thing except for its programming language to use go, that is, a New

0. order 1. basic Content 1) Process Composition: 2) after the fork function is called, the system does the following work: 2. function details 1) function prototype 2) function 3) description 3. summary: 0. OrderThe fork function is a

Guide Now the hottest technology is Docker, many people think Docker is a new technology, but in fact, Docker in addition to its programming language with go relatively new, actually it is really not a new thing, that is, a new bottle of old