examples/libs/l4re/c++/shared_ds/ds_clnt.cc

teclis High Elf <[email protected]> Fri, 10 Oct 2014 10:45:21 -0400

Newsgroups	gmane.comp.micro-kernel.l4.devel
Message-ID	<CAN4o2gNdCktfKHT+-JCdnQKD3Amd=0kVoZ9U790OkWasks+=FA@mail.gmail.com>

From examples/libs/l4re/c++/shared_ds/ds_clnt.cc

line 49 : L4::Cap<L4::Irq> irq = L4Re::Util::cap_alloc.alloc<L4::Irq>();

It seems this template name L4::Cap and the function name
L4Re::Util::cap_alloc are a bit misleading or only designate a sub-set of
the objects functionality. In this line you are not just requesting
permissions but getting a Unix style file handle that you then use to issue
commands to the server on line 92:

irq->trigger();

Is my understanding correct? At line 49 you are opening L4 equivalent of a
Unix style file handle for sending commands to a server and not requesting
permissions or am I over simplifying.

thanks

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