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

Differentiate b/w pre-emptive and non-pre-emptive scheduling, Differentiate...

Differentiate between pre-emptive and non-pre-emptive scheduling. Pre-emptive scheduling : in its approach, center processing unit can be taken away from a process if there is a

Define lazy swapper, Define lazy swapper.  Rather than swapping the who...

Define lazy swapper.  Rather than swapping the whole process into main memory, a lazy swapper is used. A lazy swapper never swaps a page into memory unless that page will be re

Illustrate what is a ion pair energy, Q. Illustrate what is a ion pair ener...

Q. Illustrate what is a ion pair energy? Answer:- Ion energy contains electric charges called protons (+) and neutrons (0) and electrons (-) charges. It's present in an at

Which is the slowest sorting procedure, The slowest sorting procedure is   ...

The slowest sorting procedure is    Bubble Sort is the slowest sorting process.

Interpreter, difference between pure and impute inter preter

difference between pure and impute inter preter

What will exactly the hide statement do, What will exactly the hide stateme...

What will exactly the hide statement do? For displaying the details on secondary lists needs that you have previously stored the contents of the selected line from within the

What is stack and register manipulation, Q. What is Stack and register mani...

Q. What is Stack and register manipulation? Stack and register manipulation: If we create stacks, stack instructions prove to be useful. LOAD IMMEDIATE is a good illustration

What is memory mapped i/o, What is memory mapped I/O? When the I/O devi...

What is memory mapped I/O? When the I/O devices share the similar address space, the arrangement is known as memory mapped I/O.

Organization structure, organization stucture of vardhman and oswal mills.c...

organization stucture of vardhman and oswal mills.compare and contrast them

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