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d866b6b053
The 'Thread_creation_failed' error is now reflected as 'Thread::Start_result' return value. This change also removes the use of 'Invalid_thread' within core as this exception is an alias of Cpu_session::Thread_creation_failed. Issue #5245
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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* \brief Connection to CPU service
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* \author Norman Feske
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* \date 2008-08-22
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*/
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/*
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* Copyright (C) 2008-2023 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__CPU_SESSION__CONNECTION_H_
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#define _INCLUDE__CPU_SESSION__CONNECTION_H_
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#include <cpu_session/client.h>
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#include <base/connection.h>
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namespace Genode { struct Cpu_connection; }
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struct Genode::Cpu_connection : Connection<Cpu_session>, Cpu_session_client
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{
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/**
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* Constructor
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*
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* \param priority designated priority of all threads created
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* with this CPU session
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*/
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Cpu_connection(Env &env,
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Label const &label = Label(),
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long priority = DEFAULT_PRIORITY,
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Affinity const &affinity = Affinity())
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:
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Connection<Cpu_session>(env, label, Ram_quota { RAM_QUOTA }, affinity,
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Args("priority=", Hex(priority))),
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Cpu_session_client(cap())
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{ }
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Create_thread_result create_thread(Capability<Pd_session> 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 = 0) override
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{
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Thread_capability result { };
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bool denied = false;
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while (!result.valid()) {
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using Error = Cpu_session::Create_thread_error;
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Cpu_session_client::create_thread(pd, name, affinity, weight, utcb).with_result(
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[&] (Thread_capability cap) { result = cap; },
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[&] (Error e) {
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switch (e) {
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case Error::OUT_OF_RAM: upgrade_ram(8*1024); break;
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case Error::OUT_OF_CAPS: upgrade_caps(2); break;
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case Error::DENIED: denied = true; break;
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}
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});
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if (denied)
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return Error::DENIED;
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}
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return result;
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}
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};
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#endif /* _INCLUDE__CPU_SESSION__CONNECTION_H_ */
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