Explain signal handling, Operating System

Assignment Help:

Signal handling

A signal is used in UNIX systems to inform a process that a particular event has occurred.

1. A signal is produced by the occurrence of a particular event.

2. A generated signal is delivered to a process.

3. Once delivered, the signal must be handled.

Each signal may be handled by one of two possible handlers

1. A default signal handler.

2. A user-defined signal handler.

Each signal has a default signal handler that is run by the kernel when handling the signal. This default action might be overridden by user-defined signal handler function.  

 


Related Discussions:- Explain signal handling

Explain fifo page replacement in detail, FIFO page replacement This is...

FIFO page replacement This is the easiest page replacement algorithm. Here the 1 st page toward the inside is the 1 st to leave that is the oldest page leaves. To execute th

Permanently starves cpu-bound programs, Q. Presume that a scheduling algori...

Q. Presume that a scheduling algorithm at the level of short-term CPU scheduling favours those processes that have used the least processor time in the recent past. Why this algori

Explain multilevel feedback queue in detail, Explain multilevel feedback qu...

Explain multilevel feedback queue in detail A process can move among the various queues; aging can be executed this way Multilevel-feedback-queue scheduler explained b

What are the objectives for a file management system, What are the objectiv...

What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to

Difference between the vfork() and fork() system call, In the mean while th...

In the mean while the fork() system call the Kernel creates a copy of the parent process's address space and adds it to the child process. But the vfork() system call do no

Activities of an operating system, Q. What are the five main activities of ...

Q. What are the five main activities of an operating system in regard to process management? Answer: a. The creation as well as deletion of both user and system processes

Explain fixed partitioning, Explain fixed partitioning. Partitioning ar...

Explain fixed partitioning. Partitioning are the simpler techniques that don't involve virtual memory. Partitioning has been used in numerous variations in operating systems.

Buffer, What is bounded buffer

What is bounded buffer

Multilevel queue scheduling, Explain multilevel queue scheduling and multil...

Explain multilevel queue scheduling and multilevel feedback queue scheduling #Minimum 100 words accepted#

Describes attributes, What are attributes? Attributes are the one, whic...

What are attributes? Attributes are the one, which explains the properties of data object.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd