genode/repos/base-nova/src/core/native_pd_component.cc
Norman Feske e44f65f3b2 core: RAM service based on 'Session_object'
This patch reworks the implementation of core's RAM service to make use
of the 'Session_object' and to remove the distinction between the
"metadata" quota and the managed RAM quota. With the new implementation,
the session implicitly allocates its metadata from its own account. So
there is not need to handle 'Out_of_metadata' and 'Quota_exceeded' via
different exceptions. Instead, the new version solely uses the
'Out_of_ram' exception.

Furthermore, the 'Allocator::Out_of_memory' exception has become an alias
for 'Out_of_ram', which simplifies the error handling.

Issue #2398
2017-05-31 13:16:06 +02:00

55 lines
1.2 KiB
C++

/*
* \brief Kernel-specific part of the PD-session interface
* \author Norman Feske
* \date 2016-01-19
*/
/*
* Copyright (C) 2016-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#include <pd_session_component.h>
#include <native_pd_component.h>
/* core-local includes */
#include <imprint_badge.h>
using namespace Genode;
Native_capability Native_pd_component::alloc_rpc_cap(Native_capability ep,
addr_t entry, addr_t mtd)
{
try {
return _pd_session._rpc_cap_factory.alloc(ep, entry, mtd); }
catch (Allocator::Out_of_memory) { throw Out_of_ram(); }
}
void Native_pd_component::imprint_rpc_cap(Native_capability cap, unsigned long badge)
{
if (cap.valid())
imprint_badge(cap.local_name(), badge);
}
Native_pd_component::Native_pd_component(Pd_session_component &pd_session,
char const *args)
:
_pd_session(pd_session)
{
_pd_session._thread_ep.manage(this);
}
Native_pd_component::~Native_pd_component()
{
_pd_session._thread_ep.dissolve(this);
}