Re: Hybrid Thread/Process/Syscall Interprocess Communication?

Bill Rugolsky Jr. (rugolsky@ead.dsa.com)
Tue, 5 Oct 1999 12:07:32 -0400

On Tue, Oct 05, 1999 at 11:37:01AM -0400, Jordan Mendelson wrote:
> Has any thought been given to the idea of allowing different processes to call
> each other's functions in their respected process space similar to how
> programs call kernel functions via syscalls?

One approach is the Solaris Doors design. There is a
Linux/Doors project; even outperforms Solaris on some benchmarks. :-)

http://wall.rampant.org/doors/

Of course, CORBA services abstract this behavior. With something like
GNOME ORBit, it is possible to make calls to a shared library, a server
process on the same machine, or a server process on another machine.
By supporting a spectrum of binding policies (from lazy to eager), one
can optimize the local cases by eliminating (de)marshalling, RPC, etc.

Regards,

Bill Rugolsky
rugolsky@ead.dsa.com

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