cfdbccc5c2
This is a redesign of the root and parent interfaces to eliminate blocking RPC calls. - New session representation at the parent (base/session_state.h) - base-internal root proxy mechanism as migration path - Redesign of base/service.h - Removes ancient 'Connection::KEEP_OPEN' feature - Interface change of 'Child', 'Child_policy', 'Slave', 'Slave_policy' - New 'Slave::Connection' - Changed child-construction procedure to be compatible with the non-blocking parent interface and to be easier to use - The child's initial LOG session, its binary ROM session, and the linker ROM session have become part of the child's envirenment. - Session upgrading must now be performed via 'env.upgrade' instead of performing a sole RPC call the parent. To make RAM upgrades easier, the 'Connection' provides a new 'upgrade_ram' method. Issue #2120
164 lines
4.3 KiB
C++
164 lines
4.3 KiB
C++
/*
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* \brief Implementation of the CPU session interface
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* \author Christian Prochaska
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* \date 2016-01-19
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*/
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/*
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* Copyright (C) 2016 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/env.h>
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#include "cpu_session_component.h"
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#include <util/arg_string.h>
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#include <util/list.h>
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using namespace Genode;
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using namespace Cpu_sampler;
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Thread_capability
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Cpu_sampler::Cpu_session_component::create_thread(Pd_session_capability pd,
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Name const &name,
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Affinity::Location affinity,
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Weight weight,
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addr_t utcb)
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{
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Cpu_thread_component *cpu_thread = new (_md_alloc)
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Cpu_thread_component(*this,
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_md_alloc,
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pd,
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name,
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affinity,
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weight,
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utcb,
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name.string(),
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_next_thread_id);
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_thread_list.insert(new (_md_alloc) Thread_element(cpu_thread));
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_thread_list_change_handler.thread_list_changed();
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_next_thread_id++;
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return cpu_thread->cap();
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}
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void Cpu_sampler::Cpu_session_component::kill_thread(Thread_capability thread_cap)
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{
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auto lambda = [&] (Thread_element *cpu_thread_element) {
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Cpu_thread_component *cpu_thread = cpu_thread_element->object();
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if (cpu_thread->cap() == thread_cap) {
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_thread_list.remove(cpu_thread_element);
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destroy(_md_alloc, cpu_thread_element);
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destroy(_md_alloc, cpu_thread);
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_thread_list_change_handler.thread_list_changed();
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}
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};
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for_each_thread(_thread_list, lambda);
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_parent_cpu_session.kill_thread(thread_cap);
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}
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void
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Cpu_sampler::Cpu_session_component::exception_sigh(Signal_context_capability handler)
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{
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_parent_cpu_session.exception_sigh(handler);
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}
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Affinity::Space Cpu_sampler::Cpu_session_component::affinity_space() const
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{
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return _parent_cpu_session.affinity_space();
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}
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Dataspace_capability
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Cpu_sampler::Cpu_session_component::trace_control()
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{
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return _parent_cpu_session.trace_control();
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}
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Cpu_sampler::
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Cpu_session_component::
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Cpu_session_component(Rpc_entrypoint &thread_ep,
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Env &env,
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Allocator &md_alloc,
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Thread_list &thread_list,
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Thread_list_change_handler &thread_list_change_handler,
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char const *args)
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: _thread_ep(thread_ep),
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_env(env),
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_id_space_element(_parent_client, _env.id_space()),
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_parent_cpu_session(_env.session<Cpu_session>(_id_space_element.id(), args, Affinity())),
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_md_alloc(md_alloc),
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_thread_list(thread_list),
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_thread_list_change_handler(thread_list_change_handler),
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_session_label(label_from_args(args)),
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_native_cpu_cap(_setup_native_cpu())
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{ }
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void Cpu_sampler::Cpu_session_component::upgrade_ram_quota(size_t ram_quota)
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{
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String<64> const args("ram_quota=", ram_quota);
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_env.upgrade(_id_space_element.id(), args.string());
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}
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Cpu_sampler::Cpu_session_component::~Cpu_session_component()
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{
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_cleanup_native_cpu();
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auto lambda = [&] (Thread_element *cpu_thread_element) {
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Cpu_thread_component *cpu_thread = cpu_thread_element->object();
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if (cpu_thread->cpu_session_component() == this) {
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_thread_list.remove(cpu_thread_element);
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destroy(_md_alloc, cpu_thread_element);
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destroy(_md_alloc, cpu_thread);
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}
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};
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for_each_thread(_thread_list, lambda);
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_thread_list_change_handler.thread_list_changed();
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}
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int Cpu_sampler::Cpu_session_component::ref_account(Cpu_session_capability cap)
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{
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return _parent_cpu_session.ref_account(cap);
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}
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int Cpu_sampler::Cpu_session_component::transfer_quota(Cpu_session_capability cap,
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size_t size)
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{
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return _parent_cpu_session.transfer_quota(cap, size);
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}
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Cpu_session::Quota Cpu_sampler::Cpu_session_component::quota()
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{
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return _parent_cpu_session.quota();
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}
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Capability<Cpu_session::Native_cpu>
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Cpu_sampler::Cpu_session_component::native_cpu()
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{
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return _native_cpu_cap;
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}
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