Detailed Description

The interface for the Poller classes.

Inheritance diagram for ola::io::PollerInterface:

Public Member Functions
virtual	~PollerInterface ()
	Destructor.
virtual bool	AddReadDescriptor (ReadFileDescriptor *descriptor)=0
	Register a ReadFileDescriptor for read events.
virtual bool	AddReadDescriptor (ConnectedDescriptor *descriptor, bool delete_on_close)=0
	Register a ConnectedDescriptor for read events.
virtual bool	RemoveReadDescriptor (ReadFileDescriptor *descriptor)=0
	Unregister a ReadFileDescriptor for read events.
virtual bool	RemoveReadDescriptor (ConnectedDescriptor *descriptor)=0
	Unregister a ConnectedDescriptor for read events.
virtual bool	AddWriteDescriptor (WriteFileDescriptor *descriptor)=0
	Register a WriteFileDescriptor to receive ready-to-write events.
virtual bool	RemoveWriteDescriptor (WriteFileDescriptor *descriptor)=0
	Unregister a WriteFileDescriptor for write events.
virtual const TimeStamp *	WakeUpTime () const =0
virtual bool	Poll (TimeoutManager *timeout_manager, const TimeInterval &poll_interval)=0
	Poll the Descriptors for events.

Static Public Attributes
static const char	K_READ_DESCRIPTOR_VAR [] = "ss-read-descriptors"
	The number of descriptors registered for read events.
static const char	K_WRITE_DESCRIPTOR_VAR [] = "ss-write-descriptor"
	The number of descriptors registered for write events.
static const char	K_CONNECTED_DESCRIPTORS_VAR [] = "ss-connected-descriptors"
	The number of connected descriptors registered for read events.

Static Protected Attributes
static const char	K_LOOP_TIME [] = "ss-loop-time"
	The time spent in the event loop.
static const char	K_LOOP_COUNT [] = "ss-loop-count"
	The number of iterations through the event loop.

Member Function Documentation

virtual bool ola::io::PollerInterface::AddReadDescriptor ( ReadFileDescriptor * descriptor )

pure virtual

Register a ReadFileDescriptor for read events.

Parameters

descriptor the ReadFileDescriptor to register. The OnData() method will be called when there is data available for reading.

Returns: true if the descriptor was registered, false otherwise.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::AddReadDescriptor	(	ConnectedDescriptor *	descriptor,
		bool	delete_on_close
	)

pure virtual

Register a ConnectedDescriptor for read events.

Parameters

descriptor	the ConnectedDescriptor to register. The OnData() method will be called when there is data available for reading. Additionally, OnClose() will be called if the other end closes the connection.
delete_on_close	controls whether the descriptor is deleted when it's closed.

Returns: true if the descriptor was registered, false otherwise.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::AddWriteDescriptor ( WriteFileDescriptor * descriptor )

pure virtual

Register a WriteFileDescriptor to receive ready-to-write events.

Parameters

descriptor the WriteFileDescriptor to register. The PerformWrite() method will be called when the descriptor is ready for writing.

Returns: true if the descriptor was registered, false otherwise.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::Poll	(	TimeoutManager *	timeout_manager,
		const TimeInterval &	poll_interval
	)

pure virtual

Poll the Descriptors for events.

Parameters

timeout_manager	the TimeoutManager to use for timer events.
poll_interval	the maximum time to block for.

Returns: false if any errors occured, true if events were handled.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::RemoveReadDescriptor ( ReadFileDescriptor * descriptor )

pure virtual

Unregister a ReadFileDescriptor for read events.

Parameters

descriptor the ReadFileDescriptor to unregister.

Returns: true if unregistered successfully, false otherwise.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::RemoveReadDescriptor ( ConnectedDescriptor * descriptor )

pure virtual

Unregister a ConnectedDescriptor for read events.

Parameters

descriptor the ConnectedDescriptor to unregister.

Returns: true if unregistered successfully, false otherwise.

Implemented in ola::io::SelectPoller.

virtual bool ola::io::PollerInterface::RemoveWriteDescriptor ( WriteFileDescriptor * descriptor )

pure virtual

Unregister a WriteFileDescriptor for write events.

Parameters

descriptor the WriteFileDescriptor to unregister.

Returns: true if unregistered successfully, false otherwise.

Implemented in ola::io::SelectPoller.

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

common/io/PollerInterface.h
common/io/PollerInterface.cpp

Detailed Description

Public Member Functions

Static Public Attributes

Static Protected Attributes

Member Function Documentation