alex/genode
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Streamline exception types

Browse Source 
This patch reduces the number of exception types by facilitating
globally defined exceptions for common usage patterns shared by most
services. In particular, RPC functions that demand a session-resource
upgrade not longer reflect this condition via a session-specific
exception but via the 'Out_of_ram' or 'Out_of_caps' types.

Furthermore, the 'Parent::Service_denied', 'Parent::Unavailable',
'Root::Invalid_args', 'Root::Unavailable', 'Service::Invalid_args',
'Service::Unavailable', and 'Local_service::Factory::Denied' types have
been replaced by the single 'Service_denied' exception type defined in
'session/session.h'.

This consolidation eases the error handling (there are fewer exceptions
to handle), alleviates the need to convert exceptions along the
session-creation call chain, and avoids possible aliasing problems
(catching the wrong type with the same name but living in a different
scope).
This commit is contained in:
Norman Feske
2017-05-07 22:03:22 +02:00
committed by Christian Helmuth
parent 1f4f119b1e
commit 4d442bca30
180 changed files with 932 additions and 834 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
repos/base-fiasco/src/core/irq_session_component.cc
View File

@@ -130,11 +130,11 @@ Irq_session_component::Irq_session_component(Range_allocator *irq_alloc,
{
long msi = Arg_string::find_arg(args, "device_config_phys").long_value(0);
if (msi)
throw Root::Unavailable();
throw Service_denied();
if (!irq_alloc || irq_alloc->alloc_addr(1, _irq_number).error()) {
error("Unavailable IRQ ", _irq_number, " requested");
throw Root::Unavailable();
error("unavailable IRQ ", _irq_number, " requested");
throw Service_denied();
}
_irq_object.start();