Hypertable::MetaLog::Writer::WriteScheduler Class Reference

Periodically flushes deferred writes to disk. More...

Inheritance diagram for Hypertable::MetaLog::Writer::WriteScheduler:

Collaboration diagram for Hypertable::MetaLog::Writer::WriteScheduler:

Public Member Functions
	WriteScheduler (Writer *writer)
	Constructor. More...
virtual	~WriteScheduler ()
void	schedule ()
void	handle (EventPtr &event) override
	Callback method. More...
Public Member Functions inherited from Hypertable::DispatchHandler
virtual	~DispatchHandler ()
	Destructor. More...

Private Attributes
std::mutex	m_mutex
	Mutex for serializing access to members More...
std::condition_variable	m_cond
	Condition variable to signal when timer has stopped. More...
Writer *	m_writer {}
	Pointer to MetaLogWriter. More...
Comm *	m_comm {}
	Pointer to Comm layer. More...
int32_t	m_interval {}
	Timer interval. More...
bool	m_scheduled {}
	Flag indicating that write has been scheduled. More...

Detailed Description

Periodically flushes deferred writes to disk.

Definition at line 160 of file MetaLogWriter.h.

Constructor & Destructor Documentation

Writer::WriteScheduler::WriteScheduler

(

Writer *

writer

)

Constructor.

Definition at line 250 of file MetaLogWriter.cc.

Writer::WriteScheduler::~WriteScheduler ( )

virtual

Definition at line 256 of file MetaLogWriter.cc.

Member Function Documentation

void Writer::WriteScheduler::handle ( EventPtr &  event_ptr )

overridevirtual

Callback method.

When the Comm layer needs to deliver an event to the application, this method is called to do so. The set of event types include, CONNECTION_ESTABLISHED, DISCONNECT, MESSAGE, ERROR, and TIMER.

Parameters

event_ptr

smart pointer to Event object

Implements Hypertable::DispatchHandler.

Definition at line 277 of file MetaLogWriter.cc.

void Writer::WriteScheduler::schedule

(

)

Definition at line 263 of file MetaLogWriter.cc.

Member Data Documentation

Comm* Hypertable::MetaLog::Writer::WriteScheduler::m_comm {}

private

Pointer to Comm layer.

Definition at line 180 of file MetaLogWriter.h.

std::condition_variable Hypertable::MetaLog::Writer::WriteScheduler::m_cond

private

Condition variable to signal when timer has stopped.

Definition at line 176 of file MetaLogWriter.h.

int32_t Hypertable::MetaLog::Writer::WriteScheduler::m_interval {}

private

Timer interval.

Definition at line 182 of file MetaLogWriter.h.

std::mutex Hypertable::MetaLog::Writer::WriteScheduler::m_mutex

private

Mutex for serializing access to members

Definition at line 174 of file MetaLogWriter.h.

bool Hypertable::MetaLog::Writer::WriteScheduler::m_scheduled {}

private

Flag indicating that write has been scheduled.

Definition at line 184 of file MetaLogWriter.h.

Writer* Hypertable::MetaLog::Writer::WriteScheduler::m_writer {}

private

Pointer to MetaLogWriter.

Definition at line 178 of file MetaLogWriter.h.

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

• /home/doug/src/hypertable/src/cc/Hypertable/Lib/MetaLogWriter.h
• /home/doug/src/hypertable/src/cc/Hypertable/Lib/MetaLogWriter.cc