Explain concurrent sharing, Computer Engineering

Assignment Help:

Explain Concurrent Sharing

Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. There are three types of concurrent sharing:

1. Immutable files: If a file is shared in immutable mode, none of the sharing programs can alter it. This mode has the benefit that sharing programs are independent of one another.

2. Single image immutable files: Here the modifications made by one program are instantaneously visible to other programs. The UNIX file system employs this file-sharing mode.

3. Multiple image mutable files: Here several programs can concurrently update the shared file. Each updating program makes a new version of the file that is different from the version made by concurrent programs.

This sharing mode can just only be used in applications in which concurrent updates and the existence of several versions are meaningful.


Related Discussions:- Explain concurrent sharing

Instruction cycle-flynn’s classification, Instruction Cycle The instruc...

Instruction Cycle The instruction cycle consists of a series of steps needed for the implementation of an instruction in a program. A typical instruction in a program is descri

What is flag, Flag is a flip-flop used to kept the information about the st...

Flag is a flip-flop used to kept the information about the status of a processor and the status of the instruction implemented most recently A software or hardware mark that si

Inter suffer buffer and execute an instruction, What are the basic steps ne...

What are the basic steps needed to execute an instruction by the processor? Ans: The basic steps needed to execute an instruction by the processor are: A)    First fetch th

Discuss on wbmp, Question 1 How to call a WML Script from a WML page Q...

Question 1 How to call a WML Script from a WML page Question 2 Discuss on the following WML Script data type Question 3 Discuss on the following WML script statements

Calculate period of congestion in a particular exchange, In a particular ex...

In a particular exchange during busy hour 1200 calls were offered to a group of trunks, during this time 6 calls were lost. The average call duration being 3 minutes Calculate

Procedures relating to the deployment of the server, Edith & Associates is ...

Edith & Associates is a modern law firm. They have an Internet Link that is an ADSL 8MB links from JJNET. The server they are to deploy will the main service giving  server and wil

What is database integration, What is database integration? Database in...

What is database integration? Database integration is the ability to give user-friendly and cost-effective software solutions for data infrastructure management by the interfac

C LANGUAGE, 4) A positive integer is entered through the keyboard;write a ...

4) A positive integer is entered through the keyboard;write a function to find the binary equivalent of this number using recursion.

Prolog programming language - artificial intelligence, Prolog Programming L...

Prolog Programming Language - Artificial intelligence: Most of the programming languages are procedural: the programmer specifies exactly the correct instructions (algorithms)

C++, Write a program to find the area under the curve y = f(x) between x = ...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

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