How do protected types work?

How do protected types work?

[Steve Folly]

Hi,

I'm interested in finding out how protected types are implemented.

Before anyone says anything, yes, I know it's "an implementation detail".

But I'm thinking there must be a standard way method of using semaphores
and mutexes to allow multiple readers, or a single writer access to the
object.

Any info or links to the web will be welcome.

Cheers,
Steve Folly.

Re: How do protected types work?

[Pascal Obry]

"Steve Folly" <steve.folly@uk.thalesgroup.com> writes:

> Hi,
> 
> I'm interested in finding out how protected types are implemented.

Look at the GNAT sources, it's free...

Pascal.

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--| Pascal Obry                           Team-Ada Member
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Re: How do protected types work?

[Jeffrey Carter]

The "canonical" implementation of protected types uses ceiling locking,
and is described in D.3 of the Ada 95 Rationale, which can be found on
www.adapower.com.