I think I probably do require reads to be blocked during a write - but
specifically, I don't know how Dictionary<X,Y> works so I wasn't clear
on how much locking I should be doing.

Best wishes
James


-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Ritchie
Sent: 05 April 2006 18:50
To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM
Subject: Re: [ADVANCED-DOTNET] Dictionary multi-reader single writer

I, too, assumed James would require reads to be blocked during a write;
making ReaderWriterLock an excellent candidate.

Vance Morrison has a good blog entry on ReaderWriterLock (which also
references some of his excellent articles on multi-threading) that
discusses the performance of ReaderWriterLock in .NET 2.0 (and, I'll
assume, 1.x) [1]

[1] http://blogs.msdn.com/vancem/archive/2006/03/28/563180.aspx

-- Peter
_____
http://www.peterRitchie.com/Blog/DotNetConfig.xsd

On Wed, 5 Apr 2006 12:17:25 -0500, Eric Means <[EMAIL PROTECTED]>
wrote:

>ReaderWriterLock?
>
>On 4/5/06, James Berry <[EMAIL PROTECTED]> wrote:
>>
>> Hi
>>
>> I have a Dictionary<X,Y>
>>
>> I want to look up X's in my dictionary a lot from multiple threads.  
>> I want to add items to my dictionary occasionally from some of these 
>> threads.  I would like the reads to proceed concurrently without 
>> locking, but I am not sure of the right pattern - can anyone help?

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