Hypertable::LocationInitializer Class Reference

Obtains location string (proxy name) for the range server. More...

#include <LocationInitializer.h>

Inheritance diagram for Hypertable::LocationInitializer:

Collaboration diagram for Hypertable::LocationInitializer:

Public Member Functions
	LocationInitializer (std::shared_ptr< Context > &context)
	Constructor. More...
virtual bool	is_removed (const String &path, Hyperspace::SessionPtr &hyperspace)
	Checks if "removed" attribute is set on Hyperspace location file. More...
CommBuf *	create_initialization_request () override
	Creates a connection initialization message. More...
bool	process_initialization_response (Event *event) override
	Process response to initialization message. More...
uint64_t	initialization_command () override
	Command code (see CommHeader::command) for initialization response message. More...
String	get ()
	Gets assigned location (proxy name) More...
void	wait_for_handshake ()
	Waits for completion of initialization handshake. More...
void	set_lock_held ()
	Signals that Hyperspace lock on location file is held. More...

Private Attributes
std::shared_ptr< Context >	m_context
	Range server context More...
std::mutex	m_mutex
	Mutex for serializing concurrent access. More...
std::condition_variable	m_cond
	Condition variable signalling completion of initialization handshake. More...
String	m_location
	Assigned location (proxy name) More...
String	m_location_file
	Local pathname to location file. More...
bool	m_location_persisted {}
	Flag indicating if assigned location has been written to location file. More...
bool	m_handshake_complete {}
	Flag indicating completion of initialization handshake. More...
bool	m_lock_held {}
	Flag indicating that Hyperspace lock on location file is held. More...

Detailed Description

Obtains location string (proxy name) for the range server.

Definition at line 51 of file LocationInitializer.h.

Constructor & Destructor Documentation

LocationInitializer::LocationInitializer

(

std::shared_ptr< Context > &

context

)

Constructor.

Parameters

context

Range server context

Definition at line 53 of file LocationInitializer.cc.

Member Function Documentation

CommBuf * LocationInitializer::create_initialization_request ( )

overridevirtual

Creates a connection initialization message.

Returns

Initialization message (freed by caller)

Implements Hypertable::ConnectionInitializer.

Definition at line 107 of file LocationInitializer.cc.

String LocationInitializer::get

(

)

Gets assigned location (proxy name)

Definition at line 184 of file LocationInitializer.cc.

uint64_t Hypertable::LocationInitializer::initialization_command ( )

inlineoverridevirtual

Command code (see CommHeader::command) for initialization response message.

This method is used by the ConnectionManager to determine if a received message is part of the initialization handshake.

Returns

Initialization command code

Implements Hypertable::ConnectionInitializer.

Definition at line 65 of file LocationInitializer.h.

bool LocationInitializer::is_removed ( const String &  path, Hyperspace::SessionPtr &  hyperspace  )

virtual

Checks if "removed" attribute is set on Hyperspace location file.

Definition at line 87 of file LocationInitializer.cc.

bool LocationInitializer::process_initialization_response ( Event *  event )

overridevirtual

Process response to initialization message.

Parameters

event

Pointer to event object holding response message

Returns

true on success, false on failure

Implements Hypertable::ConnectionInitializer.

Definition at line 140 of file LocationInitializer.cc.

void Hypertable::LocationInitializer::set_lock_held ( )

inline

Signals that Hyperspace lock on location file is held.

Definition at line 74 of file LocationInitializer.h.

void LocationInitializer::wait_for_handshake

(

)

Waits for completion of initialization handshake.

Definition at line 189 of file LocationInitializer.cc.

Member Data Documentation

std::condition_variable Hypertable::LocationInitializer::m_cond

private

Condition variable signalling completion of initialization handshake.

Definition at line 85 of file LocationInitializer.h.

std::shared_ptr<Context> Hypertable::LocationInitializer::m_context

private

Range server context

Definition at line 79 of file LocationInitializer.h.

bool Hypertable::LocationInitializer::m_handshake_complete {}

private

Flag indicating completion of initialization handshake.

Definition at line 97 of file LocationInitializer.h.

String Hypertable::LocationInitializer::m_location

private

Assigned location (proxy name)

Definition at line 88 of file LocationInitializer.h.

String Hypertable::LocationInitializer::m_location_file

private

Local pathname to location file.

Definition at line 91 of file LocationInitializer.h.

bool Hypertable::LocationInitializer::m_location_persisted {}

private

Flag indicating if assigned location has been written to location file.

Definition at line 94 of file LocationInitializer.h.

bool Hypertable::LocationInitializer::m_lock_held {}

private

Flag indicating that Hyperspace lock on location file is held.

Definition at line 100 of file LocationInitializer.h.

std::mutex Hypertable::LocationInitializer::m_mutex

private

Mutex for serializing concurrent access.

Definition at line 82 of file LocationInitializer.h.

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The documentation for this class was generated from the following files:

• /home/doug/src/hypertable/src/cc/Hypertable/RangeServer/LocationInitializer.h
• /home/doug/src/hypertable/src/cc/Hypertable/RangeServer/LocationInitializer.cc