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
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/*
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* \brief CPU root 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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#ifndef _CPU_ROOT_H_
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#define _CPU_ROOT_H_
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/* Genode includes */
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#include <root/component.h>
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/* local includes */
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#include "cpu_session_component.h"
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#include "cpu_thread_component.h"
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#include "thread_list_change_handler.h"
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namespace Cpu_sampler {
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using namespace Genode;
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class Cpu_root;
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}
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class Cpu_sampler::Cpu_root : public Root_component<Cpu_session_component>
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{
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private:
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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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protected:
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Cpu_session_component *_create_session(const char *args) override
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{
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Cpu_session_component *cpu_session_component =
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new (md_alloc()) Cpu_session_component(_thread_ep, _env,
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_md_alloc, _thread_list,
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_thread_list_change_handler,
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args);
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return cpu_session_component;
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}
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void _upgrade_session(Cpu_session_component *cpu, const char *args) override
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{
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size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
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cpu->upgrade_ram_quota(ram_quota);
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}
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public:
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Cpu_root(Rpc_entrypoint &session_ep,
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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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: Root_component<Cpu_session_component>(&session_ep, &md_alloc),
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_thread_ep(thread_ep), _env(env),
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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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};
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#endif /* _CPU_ROOT_H_ */
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