From: Robert Klemme <shortcutter@...>
Date: 2008-02-16T07:19:57+09:00
Subject: Re: Thread safety

On 15.02.2008 21:08, s.ross wrote:
> On Feb 15, 2008, at 10:54 AM, Jeff Turc wrote:
> 
>> I know it's probably hard to generalize, but does anybody have any
>> simple rules to follow (or resources to share) for writing thread safe
>> code?

> Rule #3: If you are changing the state of an object that is not thread- 
> local, wrap the change in a mutex (etc.)

Corollary: use thread confinement, i.e. design your app in a way that 
most objects are used in a single thread at a time only.  Restrict need 
for synchronization to the minimum needed.

> Rule #4: Don't be too sure that any operation in Ruby is atomic.

Somehow this reminds me of "Blondie" and "Atomic". :-)  Those were the 
days...

Cheers

	robert