Question about controlling processes

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1 total messages Started by Sivarama Subramanian Sat, 23 Jan 1993 18:51

#2604

Author: Sivarama Subramanian
Date: Sat, 23 Jan 1993 18:51

34 lines
1516 bytes

i folks,

Here is what is I am trying to do:
                                          forks
               forks                   |-------->Process3
   Process1 --------------> Process2-----
                                       |-------->Procees4
                                          forks
I want to make Process2 controlling process and let Process4
      belong to a backgroung process group. When Process2 exits
      Process3 should get SIGHUP signal. I want to test this
      scenerio.

Can anyone give me some insights?

In a related note:

1). What is a controlling process?
         My understanding is that the controlling process is the one
         which establishes the connection to the controlling terminal.
         Is it correct and if so how to make a connection to
         controlling terminal?
2) How to make a set of processes belong to foregound and background
    processes?
I would appreciate your help.

Thank you



subra
subra@testserver.austin.ibm.com

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