ola::io::PipeDescriptor Class Reference

Detailed Description

A descriptor that uses unix pipes.

You can get the 'other end' of the PipeDescriptor by calling OppositeEnd().

Inheritance diagram for ola::io::PipeDescriptor:

Public Member Functions
bool	Init ()
	Initialize the PipeDescriptor.
PipeDescriptor *	OppositeEnd ()
	Fetch the other end of the PipeDescriptor.
DescriptorHandle	ReadDescriptor () const
	Returns the read descriptor for this socket.
DescriptorHandle	WriteDescriptor () const
	Returns the write descriptor for this socket.
bool	Close ()
	Close this PipeDescriptor.
bool	CloseClient ()
	Close the write portion of this PipeDescriptor.
Public Member Functions inherited from ola::io::ConnectedDescriptor
virtual ssize_t	Send (const uint8_t *buffer, unsigned int size)
	Write a buffer to the descriptor.
virtual ssize_t	Send (IOQueue *data)
	Write data from an IOQueue to a descriptor.
virtual int	Receive (uint8_t *buffer, unsigned int size, unsigned int &data_read)
	Read data from this descriptor.
virtual bool	SetReadNonBlocking ()
	Enable on non-blocking reads..
int	DataRemaining () const
	Find out how much data is left to read.
bool	IsClosed () const
	Check if the descriptor is closed.
void	SetOnClose (OnCloseCallback *on_close)
	Set the callback to be run when the descriptor is closed.
OnCloseCallback *	TransferOnClose ()
	Take ownership of the on_close callback.
Public Member Functions inherited from ola::io::BidirectionalFileDescriptor
void	SetOnData (ola::Callback0< void > *on_read)
	Set the callback to be run when data is available for reading.
void	SetOnWritable (ola::Callback0< void > *on_write)
	Set the callback to be run when the descriptor can be written to.
void	PerformRead ()
	Called when there is data available on the descriptor.
void	PerformWrite ()
	Called when the descriptor can be written to.
Public Member Functions inherited from ola::io::ReadFileDescriptor
bool	ValidReadDescriptor () const
	Check if this file descriptor is valid.
Public Member Functions inherited from ola::io::WriteFileDescriptor
bool	ValidWriteDescriptor () const
	Check if this file descriptor is valid.

Protected Member Functions
bool	IsSocket () const
Protected Member Functions inherited from ola::io::ConnectedDescriptor
bool	SetNoSigPipe (DescriptorHandle fd)
	Disable SIGPIPE for this descriptor.

Additional Inherited Members
Public Types inherited from ola::io::ConnectedDescriptor
typedef ola::SingleUseCallback0< void >	OnCloseCallback
Static Public Member Functions inherited from ola::io::ConnectedDescriptor
static bool	SetNonBlocking (DescriptorHandle fd)
	Set a DescriptorHandle to non-blocking mode.

Member Function Documentation

PipeDescriptor * ola::io::PipeDescriptor::OppositeEnd

(

)

Fetch the other end of the PipeDescriptor.

Returns

A new PipeDescriptor or NULL if the descriptor wasn't initialized correctly. Its an error to call this more than once. Ownership of the returned PipeDescriptor is transferred to the caller.

DescriptorHandle ola::io::PipeDescriptor::ReadDescriptor ( ) const

inlinevirtual

Returns the read descriptor for this socket.

Returns

the DescriptorHandle for this descriptor.

Implements ola::io::ReadFileDescriptor.

DescriptorHandle ola::io::PipeDescriptor::WriteDescriptor ( ) const

inlinevirtual

Returns the write descriptor for this socket.

Returns

the DescriptorHandle for this descriptor.

Implements ola::io::WriteFileDescriptor.

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

• include/ola/io/Descriptor.h
• common/io/Descriptor.cpp