Why process leader can not call setsid()

chenhao_no1 · September 9, 2002, 4:07am

Perderabo · September 9, 2002, 9:39am

To guarantee that processes in a process group are in the same session. Once this guarantee is in place you can think of a session as a collection of process groups.

sivhard · October 8, 2002, 10:09am

the main usage of setsid is to make a particular process to lead the group. Once this level is achieved there is no need to call setsid() once again.