¿Puede un proceso padre tener varios hijos?

Can a parent process have multiple children?

A parent process may have multiple child processes but a child process only one parent process. On the success of a fork() system call, the PID of the child process is returned to the parent process and 0 is returned to the child process.

Fork #1 creates an additional processes. You now have two processes. Fork #2 is executed by two processes, creating two processes, for a total of four. Fork #4 is executed by half of the processes created by fork #3 (so, four of them).

fork() system call creates a child which executes the same code as the parent. From that moment, there are 2 processes executing the next line: parent and child. So, the printf() inside the for loop is executed: 10 times for the first 2 processes.

Orphan processes are an opposite situation to zombie processes, referring to the case in which a parent process terminates before its child processes, which are said to become “orphaned”.

The thing to remember about fork () is that it’s called once, but it returns twice — once in the parent process, and once in the newly cloned child process.

The first child will fork () for the first time on the next iteration of the loop, when i == 1. But it will complete the first iteration of the loop before it does that (because it was created in the middle of that iteration), so it’ll printf () the i=0. – Crowman Nov 7 ’14 at 3:51 Is my diagram correct? Yes, essentially.

fork () in C. Fork system call is used for creating a new process, which is called child process, which runs concurrently with the process that makes the fork () call (parent process). After a new child process is created, both processes will execute the next instruction following the fork () system call.

If you want to launch several forks, you should do it recursively. This is because you must call fork from the parent process. Otherwise, if you launch a second fork, you will duplicate both parent and first child process. Here’s an example: You can do this with fork.