how to make a function thread-safe ?

[Harry George]

A true function with no global side-effects should be thread-safe.
[Or at least that's true in any language I've multi-threaded so far.]

If there are global side effects, you need to capture them in some
structure (with a class being a convenient format), and pass that (one
per thread) to the function.

Your suggestion is one of several syntactic alternative to passing a
structure: make the function a method of the class which has the
per-thread data.

j vickroy <jim.vickroy at noaa.gov> writes:

> If a function may be applied (simultaneously) by multiple threads is the
> safe (correct) procedure to wrap the function inside a class and have
> each thread create its own instance of the class?
> 
> Thanks

-- 
Harry George                E-mail:  harry.g.george at boeing.com
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