volatile keyword

volatile keyword

World's Greatest C# Community

free Source Code

[ Sign In / register ] Points
Notes
My Forums
My Tutorials
My Profile

Learn

• Articles
• QuickStarts
• C# Spec
• Whitepapers
• Tools
• Class Browser
• C# Code Generator
• Links
• Misc Rss Feeds
• Code Highlight
• 411 Directory
• FREE magazines
• freevb.net

Reviews

• ASP.NET Hosting

Source Code

• Get Version 1.0

C# Consulting
AspDotNetStoreFront

Chapter: UnCategorized Current Lesson: volatile keyword	[Latest Content] A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| X \| Y \| Z \| ALL
[prev. Lesson] void keyword	[next Lesson] using keyword

volatile keyword
by: Salman Ahmed

volatile

The keyword volatile means that a field can be modified in the program by thinks along the lines of say the operating system, hardware or even a thread executing concurrently. General syntax of volatile is:

volatile declaration

where:

declaration is of a field.

Key Points:

Whenever a volatile is requested, the system returns the current value at the time of the request. All assignments are written to the object immediately.

Common usage of the volatile modifier is when a particular field is accessed by many threads without using the lock statement to serialize access. So in essence the volatile modifier guarantees that a thread will retrieve the most recent value written by another thread (even if it was modified by the previous instruction from you call).

You are not allowed to use volatile on just any time. The following is a list of types you can implement this modifier on:

Any reference type.
Any pointer type in a unsafe context
sbyte, byte, short, ushort, int, uint, char, float, bool.
An enum type with an enum base type of the following: byte, sbyte, short, ushort, int, uint.

Example:

public volatile int iAge;

1

Build Your Own ASP.NET Website Using C# & VB.NET

Chapter: UnCategorized Current Lesson: volatile keyword	[Latest Content] A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| X \| Y \| Z \| ALL
[prev. Lesson] void keyword	[next Lesson] using keyword

Today's Top Movers

vulpes 6800
MadHatter 2220
jal 867
Jeff1203 857
muster 791

Yesterday Top Movers

shakti sin.. 9
MadHatter 3
C#fanatic 2
Al_Pennywo.. 2
simboy 1

Monthly Leaders

vulpes 6800
MadHatter 2260
jal 867
Jeff1203 857
muster 791

Top Members

mosessaur 18457
Rincewind 7074
stanleytan 6995
vulpes 6800
Gsuttie 6046

Great Offers
.net hosting
Go To My Pc
Remote Pc Control
zonealarm
spam blocker
web hosting directory
ad server C#
snadtech GoToMyPc

Advertise | About | Link To Us | Privacy Notice Copyright © 2003 - 2005 CSharpFriends.com All Rights Reserved Visual C# Developer Center