ca971bbfd8
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/*
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* \brief Address-node holds a client-specific session-component.
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* \author Stefan Kalkowski
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* \date 2010-08-25
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*/
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/*
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* Copyright (C) 2010-2013 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 _ADDRESS_NODE_H_
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#define _ADDRESS_NODE_H_
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/* Genode */
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#include <util/avl_tree.h>
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#include <util/list.h>
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#include <nic_session/nic_session.h>
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#include <net/netaddress.h>
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#include <net/ethernet.h>
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#include <net/ipv4.h>
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namespace Net {
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/* Forward declaration */
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class Session_component;
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/**
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* An Address_node encapsulates a session-component and can be hold in
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* a list and/or avl-tree, whereby the network-address (MAC or IP)
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* acts as a key.
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*/
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template <unsigned LEN>
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class Address_node : public Genode::Avl_node<Address_node<LEN> >,
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public Genode::List<Address_node<LEN> >::Element
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{
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public:
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typedef Network_address<LEN> Address;
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private:
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Address _addr; /* MAC or IP address */
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Session_component *_component; /* client's component */
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public:
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/**
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* Constructor
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*
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* \param addr Network address acting as sorting criteria.
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* \param component pointer to client's session component.
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*/
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Address_node(Address addr, Session_component *component)
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: _addr(addr), _component(component) { }
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/***************
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** Accessors **
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***************/
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Address addr() { return _addr; }
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Session_component *component() { return _component; }
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/************************
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** Avl node interface **
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************************/
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bool higher(Address_node *c)
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{
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using namespace Genode;
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return (memcmp(&c->_addr.addr, &_addr.addr,
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sizeof(_addr.addr)) > 0);
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}
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/**
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* Find by address
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*/
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Address_node *find_by_address(Address addr)
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{
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using namespace Genode;
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if (addr == _addr)
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return this;
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bool side = memcmp(&addr.addr, _addr.addr,
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sizeof(_addr.addr)) > 0;
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Address_node *c = Avl_node<Address_node>::child(side);
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return c ? c->find_by_address(addr) : 0;
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}
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};
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typedef Address_node<Ipv4_packet::ADDR_LEN> Ipv4_address_node;
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typedef Address_node<Ethernet_frame::ADDR_LEN> Mac_address_node;
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}
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#endif /* _ADDRESS_NODE_H_ */
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