25-02-2013, 10:19 AM
Unix Network Programming
Unix Network.pptx (Size: 65.85 KB / Downloads: 22)
Process Control
It includes:
The creations of new process.
Program execution.
Program Termination.
Process Identifiers:
It is unique.
This unique process id also reused by delay reuse.
exec functions
If a program is called by using the fork() function new process id and memory place is created for that particular process.
But a program is called by using the exec function the existing process is completely replaced by new one.
The existing process Id, Memory, stack is allocated to new process.