[fpc-devel] C++ gets language-internal concurrency support

Marco van de Voort marcov at stack.nl
Wed Aug 17 18:14:03 CEST 2011

In our previous episode, David W Noon said:

> The threads t1 and t2 execute in parallel.  Moreover, they will execute
> in parallel with any code that occurs between the declaration that
> start the threads and the join() method calls that synchronize them
> with the invoking thread.  On a SMP system they will execute physically
> in parallel, not simply timesliced against one another.  The underlying
> implementation model is that of POSIX threads.

I know, but this is an explicit form of parallelism, and spawns one thread,
not much different from Delphi tthread. (specially as coupled with anonymous
methods in later versions)

The .NET/Prism "parallel for" however spawns multiple
threads, one for each "for" iteration, probably with some maximum. 

Note that I'm not so sure that the "parallel for" is a good (read:
practical) thing to have, it is just that I noted some discrepancy in M. 
Schnell's original post where he tied the new C++ features to the Prism

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