fork multiple child processes c

  Fork introduction:Fork stands for the meaning of "branching and branching". In the operating system, fork is a famous Unix (or Unix-like, such as Linux or minix) to create a sub-process. [Note1]What is the role of Fork? In other words, what is the

Fork introduction:Fork stands for the meaning of "branching and branching". In the operating system, fork is a famous Unix (or Unix-like, such as Linux or minix) to create a sub-process. [Note1]What is the role of Fork? In other words, what is the

This article mainly introduces how to learn the communication between parent and child processes from the child_process module of Node. js, which has some reference value. If you are interested, you can refer to it. This article mainly introduces #

Fork is one of the most difficult concepts to understand: it executes once but returns two values.First, let's look at the prototype of the fork function:# include # include pid_t fork (void);return value:Negative number: If there is an error, fork (

This article mainly introduces the use of multi-process in Python to achieve parallel processing of the method summary, with a certain reference value, interested in small partners can refer to Processes and threads are important concepts in the

1. DefinitionA process is a program with a certain independent function about a single run activity on a data set , a process that is an independent unit of the system's resource allocation and scheduling.A thread is an entity of a process that is

First, the problem introducedDuring work, a system designer throws the following question, the following code, outputs several "-"? ：/****************************************************************************** Copyright by Thomas Hu, all rights

Turn from: http://blog.csdn.net/anxuegang/article/details/6658472 Preface:The EXCE call does not create a new process, so the process ID does not change, and exec simply replaces the body, data, heap, and stack segments of the current process with

Copy-on-write technology was originally generated by UNIX systems to implement a fool-like process creation: when a fork () system call is made, the kernel copies the entire address space of the parent process as-is and assigns the copied copy to

Author: CCF published on: 17:11:01   # Include ; # Include ; Main () { Pid_t PID; PID = fork (); If (PID Printf ("error in fork! "); Else if (pid = 0) Printf ("I am the child process, my process ID is % DN", getpid ()); Else Printf ("I am the