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clinuxprocessspawn

Spawn an independent child

How can you use C to spawn an independent child process that goes about its business without thinking about the father?

I want to spawn several processes and shortly after they have been created they go to sleep for about 2 minutes before they do their job.

However, I don't want the father to wait until the child is finished because in the meantime I want to spawn off more processes.

I'm on Linux.

Solution

  • Use fork(). The fork() System Call 

    pid_t pid = fork (); 
if (pid < 0) 
  // Error
else if (pid == 0) 
  // Child Process
  // Sleep 2 min. ?!
else 
  // Code for Father