genode/repos/base/include/cpu_session/client.h
Martin Stein c9272937e7 CPU session: apply quota via relative weightings
Physical CPU quota was previously given to a thread on construction only
by directly specifying a percentage of the quota of the according CPU
session. Now, a new thread is given a weighting that can be any value.
The physical counter-value of such a weighting depends on the weightings
of the other threads at the CPU session. Thus, the physical quota of all
threads of a CPU session must be updated when a weighting is added or
removed. This is each time the session creates or destroys a thread.

This commit also adapts the "cpu_quota" test in base-hw accordingly.

Ref #1464
2015-05-06 10:55:16 +02:00

93 lines
2.9 KiB
C++

/*
* \brief Client-side cpu session interface
* \author Christian Helmuth
* \date 2006-07-12
*/
/*
* Copyright (C) 2006-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__CPU_SESSION__CLIENT_H_
#define _INCLUDE__CPU_SESSION__CLIENT_H_
#include <cpu_session/capability.h>
#include <base/rpc_client.h>
namespace Genode { struct Cpu_session_client; }
struct Genode::Cpu_session_client : Rpc_client<Cpu_session>
{
explicit Cpu_session_client(Cpu_session_capability session)
: Rpc_client<Cpu_session>(session) { }
Thread_capability
create_thread(size_t quota, Name const &name, addr_t utcb = 0) override {
return call<Rpc_create_thread>(quota, name, utcb); }
Ram_dataspace_capability utcb(Thread_capability thread) override {
return call<Rpc_utcb>(thread); }
void kill_thread(Thread_capability thread) override {
call<Rpc_kill_thread>(thread); }
int set_pager(Thread_capability thread, Pager_capability pager) override {
return call<Rpc_set_pager>(thread, pager); }
int start(Thread_capability thread, addr_t ip, addr_t sp) override {
return call<Rpc_start>(thread, ip, sp); }
void pause(Thread_capability thread) override {
call<Rpc_pause>(thread); }
void resume(Thread_capability thread) override {
call<Rpc_resume>(thread); }
void cancel_blocking(Thread_capability thread) override {
call<Rpc_cancel_blocking>(thread); }
Thread_state state(Thread_capability thread) override {
return call<Rpc_get_state>(thread); }
void state(Thread_capability thread, Thread_state const &state) override {
call<Rpc_set_state>(thread, state); }
void exception_handler(Thread_capability thread, Signal_context_capability handler) override {
call<Rpc_exception_handler>(thread, handler); }
void single_step(Thread_capability thread, bool enable) override {
call<Rpc_single_step>(thread, enable); }
Affinity::Space affinity_space() const override {
return call<Rpc_affinity_space>(); }
void affinity(Thread_capability thread, Affinity::Location location) override {
call<Rpc_affinity>(thread, location); }
Dataspace_capability trace_control() override {
return call<Rpc_trace_control>(); }
unsigned trace_control_index(Thread_capability thread) override {
return call<Rpc_trace_control_index>(thread); }
Dataspace_capability trace_buffer(Thread_capability thread) override {
return call<Rpc_trace_buffer>(thread); }
Dataspace_capability trace_policy(Thread_capability thread) override {
return call<Rpc_trace_policy>(thread); }
int ref_account(Cpu_session_capability session) override {
return call<Rpc_ref_account>(session); }
int transfer_quota(Cpu_session_capability session, size_t amount) override {
return call<Rpc_transfer_quota>(session, amount); }
Quota quota() override { return call<Rpc_quota>(); }
};
#endif /* _INCLUDE__CPU_SESSION__CLIENT_H_ */