litespeed fork

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 purpose of using fork?-This is to create a new process, which everyone o

Transferred from: http://blog.csdn.net/jason314/article/details/5640969First, Fork Introduction knowledgeA process, including code, data, and resources assigned to the process. The fork () function creates a process that is almost identical to the original process through a system call, that is, two processes can do exactly the same thing, but two processes can do different things if the initial parameters

(1) Fork system call DescriptionThe fork system call is used to create a new process from an existing process called a child process, and the original process is called the parent process. The fork is called once, returned two times, and the two returns return their respective return values, where the return value in the parent process is the process number of th

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 () returns-1, no new process is created at this time. The initial proce

Basic ConceptsThe level of the node is defined from the root and the root is the first layer and the child of the root is the second layer.Height of the binary tree: the maximum level of the node in the tree is called the depth (Depth) or height of the tree.Two fork TreeIn computer science, a binary tree is an ordered tree with a maximum of two subtrees per node. Usually the root of the subtree is referred to as the left subtree and right subtree. A b

Transfer from http://blog.csdn.net/koches/article/details/7787468The background color of the yellow is I added ... If I can't understand it, I'm bacchanalian .a wonderful thing about a fork call is that it is called only once, but it can return two times, and it may have three different return values:1) In the parent process, fork returns the process ID of the newly created child process;2) in the sub-proce

processes by the operating system is typically completed through the process table. Each table entry in the table records a process in the current operating system. For a single CPU, only one process occupies the CPU at each specific time, but there may be multiple active (waiting for execution or continuing execution) processes in the system at the same time. 3 fork () function The fork () function is t

Transfer from:: http://blog.csdn.net/jason314/article/details/5640969First, Fork Introduction knowledgeA process, including code, data, and resources assigned to the process. The fork () function creates a process that is almost identical to the original process through a system call.That is, two processes can do exactly the same thing, but two processes can do different things if the initial parameters or

The only way to create a new process in Linux is to use the fork () function. The fork () function is a very important function in Linux, and there are some differences from previous functions, because the fork () function looks like it executes once but returns two values. The fork () function is used to create a new

First, the problem introducedDuring work, a system designer throws the following question, the following code, outputs several "-"? ：/****************************************************************************** Copyright by Thomas Hu, all rights reserved! Filename : fork01.c Author : Thomas Hu Date : 2012-8-5 Version : 1.0 description:fork function problem prototype ************ / #include After n long, no one answered the question (perhaps everyone was busy and didn't have

Reference address1. understanding of the fork function: a process that includes code, data, and resources assigned to the process. The fork () function creates a process that is almost identical to the original process through a system call.That is, two processes can do exactly the same thing, but two processes can do different things if the initial parameters or the variables passed in are different.After

The previous sections describe the knowledge of static lookup tables, starting with this section to introduce another lookup table-dynamic lookup tables.When a lookup operation is found in a dynamic lookup table, it can be deleted if the lookup succeeds, and if the lookup fails, the keyword is not in the table and can be inserted into the table.Dynamic lookup tables are represented in a variety of ways, and this section describes an implementation method that uses a tree structure to represent a