56 lines
1.1 KiB
C++
56 lines
1.1 KiB
C++
/*
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* \brief Key into RPC object pool
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* \author Norman Feske
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* \date 2015-05-08
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*/
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/*
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* Copyright (C) 2015-2017 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__BASE__INTERNAL__RPC_OBJ_KEY_H_
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#define _INCLUDE__BASE__INTERNAL__RPC_OBJ_KEY_H_
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/* base includes */
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#include <base/stdint.h>
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#include <base/output.h>
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namespace Genode { class Rpc_obj_key; }
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class Genode::Rpc_obj_key
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{
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public:
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enum { INVALID = ~0UL };
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private:
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addr_t _value = INVALID;
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public:
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Rpc_obj_key() { }
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explicit Rpc_obj_key(addr_t value) : _value(value) { }
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bool valid() const { return _value != INVALID; }
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addr_t value() const { return _value; }
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void print(Output &out) const
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{
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/*
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* We print the value as signed long to make 'INVALID' or platform-
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* specific low-level codes like 'Protocol_header::INVALID_BADGE'
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* on Linux) easily recognizable. Such codes appear as negative
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* numbers.
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*/
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Genode::print(out, "key=", (long)_value);
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}
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};
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#endif /* _INCLUDE__BASE__INTERNAL__RPC_OBJ_KEY_H_ */
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