Fountain server

Files
file	CrayXT3.h
	Definition of the CrayXT3::DataSource, and CrayXT3::Statistics policy classes.
file	FountainServer.h
	FountainServer class definition.
file	InfinibandNetwork.h
	Definition for Infiniband::DataSource, Infiniband::Statistics, and Infiniband::Network policy classes.
file	InfinibandNode.h
	Definition of Infiniband::Node class.
file	InfinibandPort.h
	Definition of Infiniband::Port class.
file	NodeData.h
	Definition of NodeData host class, NoNetwork policy class, and FountainNodes::Statistics policy class.
file	server.cpp
	main driver code for a FountainServer object
file	ServerData.h
	Definition of ServerData host class and NoDataSource policy class.
file	ServerMessage.h
	Definitions of classes ServerMessage, ServerRequest, and ServerResponse.
Namespaces
namespace	CrayXT3
	Encapsulates Cray XT3 classes and data types.
namespace	Infiniband
	Encapsulates Infiniband classes and data types.
namespace	FountainNodes
	Encapsulates Classes and data types specific to maintaining node monitoring statistics about Fountain node daemons.
Classes
class	CrayXT3::Statistics
	Maintains statistics about a CrayXT3 parallel computer by implementing the NodeData Node Statistics policy. More...
class	CrayXT3::DataSource
	Simple extension to Fountain to add support for the CrayXT3 parallel computer. This class implements the ServerData DataSource policy. More...
class	FountainServer
	Implements the Scalable Systems Software node monitor specification. More...
class	FountainServerCreator< T >
	Wrapper policy class around Loki::CreateUsingNew to instantiate singleton instances of FountainServer classes. More...
class	Infiniband::Statistics
	Maintains statistics about an HCA node in an Infiniband Network by implementing the NodeData Node Statistics policy. More...
class	Infiniband::Network
	Implementation of the NodeData Node Network policy class to represent the Network element of an Infiniband node. More...
class	Infiniband::DataSource
	Methods and data structures for discovering nodes and switches connected to an Infiniband network. This class implements the ServerData DataSource policy. More...
class	Infiniband::Node
	Object representing a single node in an Infiniband network. More...
class	Infiniband::Port
	Object representing a single port of a node in an Infiniband network. More...
class	NodeData< NodeStatistics, NodeNetwork >
	Object to represent information for each node in a cluster. More...
class	SupportsNodeState
	Base class for other classes implementing the NodeData statistics policy class to inherit from. More...
class	FountainNodes::Network
	A class that implements the NodeData network policy. More...
class	FountainNodes::Statistics
	Class implementing the NodeData statistics policy to maintain node statistics about a Fountain node. More...
class	ServerData< DataSource >
	Encapsulates server speific data sources. More...
class	NoDataSource
	A class implementing the basic DataSource policy. More...
class	ServerMessage
	Abstract base class for messages sent to and from the Fountain server. More...
class	ServerRequest
	Used for request messages sent from the Fountain server. More...
class	ServerResponse
	Used for response messages sent from the Fountain server. More...
Typedefs
typedef NodeData< Statistics >	CrayXT3::DataSource::NodeDataType
	The type of objects stored in the Fountain Server's node monitor database.
typedef std::map< std::string, NodeDataType >	CrayXT3::DataSource::HashTable
	The associated container used for the Fountain Server's node monitor database.
typedef Loki::SingletonHolder< FountainServer, FountainServerCreator >	SingleFountainServer
	Shorthand for getting the singleton instance of the FountainServer class.
typedef NodeData< Loki::Select< FountainNodes::Enable, FountainNodes::Statistics, Statistics >::Result, Network >	Infiniband::DataSource::NodeDataType
	The type of objects stored in the Fountain Server's node monitor database.
typedef std::map< std::string, NodeDataType >	Infiniband::DataSource::HashTable
	The associated container used for the Fountain Server's node monitor database.
typedef ServerData< Loki::Select< CrayXT3::Enable, CrayXT3::DataSource, Loki::Select< Infiniband::Enable, Infiniband::DataSource, NoDataSource >::Result >::Result >	ServerDataSource
	The ServerDataSource is how Fountain obtains node monitoring data from a server specific data source.

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Detailed Description

These files, classes, and typedefs are used to create the Fountain server

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Typedef Documentation

Infiniband::DataSource::NodeDataType [inherited]

The type of objects stored in the Fountain Server's node monitor database. This typedef can use either the Infiniband::Statistics object or the FountainNodes::Statistics object as the type to be stored in the node monitor database dependong on which module is enabled during the configuration step of Fountain. The Loki::Select construct does this by performing a compile time if/else statement to select the appropriate type.

ServerDataSource

The ServerDataSource is how Fountain obtains node monitoring data from a server specific data source. This Loki::Select stuff is just a compile time way of doing an if/else statement. Since Fountain supports multiple server specific data sources, we have to pick which one we'll use. Basically, each server specific data source provides a namespace to hide all of its details. Inside each namespace, they provide a booleon value "Enable" that tells us if that specific data source has been enabled with the appropriate flag passed to the configure script when Fountain was compiled. If no data source has been enabled, the default NoDataSource data source object will be instantiated.

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