From: Arlen Cuss <ar@...>
Date: 2012-11-26T20:13:05+09:00
Subject: Re: atomic statements in multithreading

That is not what "atomic" would usually mean; what you're asking for is a mix of many other concepts. Thread.exclusive may be want you want:

step-1
Thread.exclusive do
step-2
step-3
end
step-4
step-5

But it's loaded with gotchas and you may want to be more explicit; or indeed, work out a way to not need this synchronisation between threads. 


On Monday, 26 November 2012 at 10:03 PM, ajay paswan wrote:

> suppose I am working in multiple thread each thread runs following
> steps:
> 
> 
> 
> step-1
> step-2
> step-3
> step-4
> step-5
> 
> now I want to make step 2 and step 3 an atomic statement, it means when
> one thread goes to statement 2, every other thread should stop and run
> only when that particular thread completes step 3. Is it possible? How?
> 
> note mutex is not the solution, as mutex keeps thread not running a
> block of code at same time, here if one thread goes to the block all
> other thread should stop.
> 
> -- 
> Posted via http://www.ruby-forum.com/.