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So true about volatile. Spent countless of hours trying to get a 100% accurate understanding of it, but I'm still not sure I get it.

cwap
– cwap

2010-11-26 14:51:13 +00:00
Commented Nov 26, 2010 at 14:51
I had a look at volatile a few days ago (simple-talk.com/community/blogs/simonc/archive/2010/11/24/…), and I couldn't find any documentation on it that wasn't contradictory or misleading. In particular, the CLR docs on the volatile. prefix seem to be completely different to what the C# spec says on volatile. It would be nice to get the 'official' view from a Microsoft CLR person at some point...

thecoop
– thecoop

2010-11-26 14:57:03 +00:00
Commented Nov 26, 2010 at 14:57
@thecoop: Yeah. I used to go with the idea that a write to a volatile variable immediately went to main memory, and a read always came from main memory, effectively. I don't think it's that simple, and I get very confused :( Best left to the experts, IMO.

Jon Skeet
– Jon Skeet

2010-11-26 15:00:42 +00:00
Commented Nov 26, 2010 at 15:00
In my code, I'm actually trying to read from a Dictionary object. So potentially my update code will out the Dictionary object as it's being read (by some internal routines in the dictionary object) , and I guess might yield unexpected results

Mark 909
– Mark 909

2010-11-26 15:13:29 +00:00
Commented Nov 26, 2010 at 15:13
@Mark 909: If it's a plain Dictionary<TKey, TValue> then that's not thread-safe anyway.

Jon Skeet
– Jon Skeet

2010-11-26 15:23:46 +00:00
Commented Nov 26, 2010 at 15:23

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