Question

Describe how signal and signal management calls are used in creating a process and terminating it after a certain interval. Give a simple example to illustrate this routine.

Please answer in essay form

Answer 1

Answer : Given data

* Describe how signal and signal management

• Signal allows process which is associated with the operating system, indicate to one another when some event of interest requires attention.
• Each process have algorithm and it is associated with each signal. each process contains entries.
• Each entry contains function which is needed to be done for each signal
• Signal and handling of the signal is asynchronous process.
• Every signal has a name which include SIG, SIGABRT and SIGALRM.
• SIGABRT -- it is generated by calling the abort function.
• and the process terminates abnormly.
• SIGALRM -- It is generated when timer set by the process off and when the interval time goes off.
• The asynchronous event can be -- Disk activity completion and process termination.
• The signal allows processes to synchronize or coordinate with the activities.