2016-03-30 15:34:37 +02:00
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/*
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* \brief Core implementation of the CPU session interface
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* \author Norman Feske
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* \date 2012-08-15
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*/
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/*
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2017-02-20 13:23:52 +01:00
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* Copyright (C) 2012-2017 Genode Labs GmbH
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2016-03-30 15:34:37 +02:00
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*
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* This file is part of the Genode OS framework, which is distributed
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2017-02-20 13:23:52 +01:00
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* under the terms of the GNU Affero General Public License version 3.
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2016-03-30 15:34:37 +02:00
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*/
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/* core-local includes */
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#include <cpu_session_component.h>
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#include <native_cpu_component.h>
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2016-06-15 15:04:54 +02:00
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/* base-internal includes */
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#include <base/internal/capability_space_tpl.h>
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2016-03-30 15:34:37 +02:00
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using namespace Genode;
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void Native_cpu_component::thread_id(Thread_capability thread_cap, int pid, int tid)
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{
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_thread_ep.apply(thread_cap, [&] (Cpu_thread_component *thread) {
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2016-05-10 18:05:38 +02:00
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if (thread) thread->platform_thread().thread_id(pid, tid); });
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2016-03-30 15:34:37 +02:00
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}
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Untyped_capability Native_cpu_component::server_sd(Thread_capability thread_cap)
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{
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auto lambda = [] (Cpu_thread_component *thread) {
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if (!thread) return Untyped_capability();
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2016-06-15 15:04:54 +02:00
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return Capability_space::import(Rpc_destination(thread->platform_thread().server_sd()),
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Rpc_obj_key());
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2016-03-30 15:34:37 +02:00
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};
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return _thread_ep.apply(thread_cap, lambda);
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}
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Untyped_capability Native_cpu_component::client_sd(Thread_capability thread_cap)
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{
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auto lambda = [] (Cpu_thread_component *thread) {
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if (!thread) return Untyped_capability();
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2016-06-15 15:04:54 +02:00
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return Capability_space::import(Rpc_destination(thread->platform_thread().client_sd()),
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Rpc_obj_key());
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2016-03-30 15:34:37 +02:00
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};
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return _thread_ep.apply(thread_cap, lambda);
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}
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Native_cpu_component::Native_cpu_component(Cpu_session_component &cpu_session, char const *)
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:
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base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
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_cpu_session(cpu_session), _thread_ep(_cpu_session._thread_ep)
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2016-03-30 15:34:37 +02:00
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{
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_thread_ep.manage(this);
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}
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Native_cpu_component::~Native_cpu_component()
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{
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_thread_ep.dissolve(this);
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}
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