Re: Ada to C++ communication under NT4.0

["Steve Doiel" <nospam_steved@pacifier.com>]

Have a look at memory mapped files under NT.  This is the way shared memory
is generally handled under NT.

SteveD

Mark wrote in message <01bdc494$f3eab0d0$0f010180@nc84c>...
>I am well aware that there is nothing magic about an Ada executable!  The
>main question concerns a C application and an Ada application running under
>NT4.0 which require to share a large amount of data, therefore creating
>significant overhead in terms of speed and memory usage if sockets or
>mailboxes are used.  Shared memory would seem the best option in this case.
> If using shared memory then one of the applications would allocate the
>address presumably, which the other would then overlay?  If this was the
>case then would the passing of the address have to via mailboxes or sockets
>since a direct call would not be possible?  Also, I am not sure how memory
>would be allocated in NT4.0.  What happens when the memory is swapped to
>disk?  Is all of this transparent to the application?  Someone has
>suggested linking the two images together using our GNAT compiler.  Is this
>possible?  I would not have thought so since presumably the Ada and C
>applications would require separate run time systems to handle their
>tasking.
>
>More replies to newsgroup please.
>
>Mark
>