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

Evaluate bandwidth of disk drive, Q. Evaluate Bandwidth of disk drive? ...

Q. Evaluate Bandwidth of disk drive? Bandwidth:  Bandwidth can be measured in bytes per second. Sustained bandwidth is the average data rate at the time of a large transfer w

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

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

Explain cocomo model, A COCOMO model is :- COCOMO:- Constructive Cost Es...

A COCOMO model is :- COCOMO:- Constructive Cost Estimation Model.

Explain common channel signalling, Common channel signalling              ...

Common channel signalling              ? Common channel signalling requires no additional transmission help or facilities.

Can math operations be performed on a void pointer, Can math operations be ...

Can math operations be performed on a void pointer? No. Pointer addition and subtraction are based on advancing the pointer by a number of elements. By explanation, if you have

Explain the acceptance and request determination, Explain the Acceptance an...

Explain the Acceptance and Request Determination As we have learned, much of the overhead in client-server interaction occurs in the CSInteface, either client or server. It is

Signaling - universal serial bus , Signaling - Universal Serial Bus: U...

Signaling - Universal Serial Bus: USB supports following signaling rates: o   A low speed rate of 1.5 Mbit/s is defined by USB 1.0. This is so much similar to "full speed"

Calculate print speed of printers, Q. Calculate Print Speed of printers? ...

Q. Calculate Print Speed of printers? Speed at which a printer prints is generally an important issue. Though the printer has to take a certain time to print. Printing time ris

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