C# Class Ipop.Dht.DhtDhcpServer

The DhtDhcpLeaseController provides mechanisms to acquire IP Addresses in the Dht. This is responsible for IP Address allocation, hostname reservation, and multicast subscribing, which is done in GetLease.

Inheritance: Ipop.DhcpServer

ファイルを表示 Open project: pstjuste/brunet Class Usage Examples

Protected Properties

Property	Type	Description
_current_ip	MemBlock
_current_quarter_lifetime	System.DateTime
_dht	IDht
_multicast	bool

Public Methods

Method	Description
DhtDhcpServer ( IDht dht, DHCPConfig config, bool EnableMulticast ) : Brunet	Creates a DhtDhcpLeaseController for a specific namespace
GetDhcpConfig ( IDht dht, string ipop_namespace ) : DHCPConfig
GetDhtDhcpServer ( IDht dht, string ipop_namespace, bool enable_multicast ) : DhtDhcpServer
RequestLease ( byte RequestedAddr, bool Renew, string node_address ) : byte[]	This provides a mechanism for a node to get a lease by using the Dht. This uses Dht.Create which provides an atomic operation on the Dht, where this node is the first to store a value at a specific key. The idea being that, this node being the first to store the IP, all nodes doing a lookup for that IP Address would be directed to this node. Working with the Dht is a little tricky as transient errors could be misrepresented as a failed Create. It is that reason why there is a Renew parameter. If that is set, the algorithm for obtaining an address is slightly changed with more weight on reobtaining the RequestedAddr.

Method Details

DhtDhcpServer() public method

Creates a DhtDhcpLeaseController for a specific namespace

public DhtDhcpServer ( IDht dht, DHCPConfig config, bool EnableMulticast ) : Brunet
dht	IDht	The dht object use to store lease information.
config	Ipop.DHCPConfig	The DHCPConfig used to define the Lease parameters.
EnableMulticast	bool	Defines if Multicast is to be enabled during the lease.
return	Brunet

GetDhcpConfig() public static method

public static GetDhcpConfig ( IDht dht, string ipop_namespace ) : DHCPConfig
dht	IDht
ipop_namespace	string
return	Ipop.DHCPConfig

GetDhtDhcpServer() public static method

public static GetDhtDhcpServer ( IDht dht, string ipop_namespace, bool enable_multicast ) : DhtDhcpServer
dht	IDht
ipop_namespace	string
enable_multicast	bool
return	DhtDhcpServer

RequestLease() public method

This provides a mechanism for a node to get a lease by using the Dht. This uses Dht.Create which provides an atomic operation on the Dht, where this node is the first to store a value at a specific key. The idea being that, this node being the first to store the IP, all nodes doing a lookup for that IP Address would be directed to this node.

Working with the Dht is a little tricky as transient errors could be misrepresented as a failed Create. It is that reason why there is a Renew parameter. If that is set, the algorithm for obtaining an address is slightly changed with more weight on reobtaining the RequestedAddr.

public RequestLease ( byte RequestedAddr, bool Renew, string node_address ) : byte[]
RequestedAddr	byte	Optional parameter if the node would like to request a specific address.
Renew	bool	Is the RequestedAddr a renewal?
node_address	string	The Brunet.Address where the DhtIpopNode resides
return	byte[]

Property Details

_current_ip protected_oe property

Speed optimization for slow dht, current ip

protected MemBlock _current_ip
return	MemBlock

_current_quarter_lifetime protected_oe property

Speed optimization for slow dht, lease quarter time.

protected DateTime,System _current_quarter_lifetime
return	System.DateTime

_dht protected_oe property

The dht object used to stored lease information.

protected IDht _dht
return	IDht

_multicast protected_oe property

Multicast enabled.

protected bool _multicast
return	bool