dsp::OutputDADABuffer Class Reference

A class for writing BitSeries data to a DADA ring buffer. More...

#include <OutputDADABuffer.h>

Inheritance diagram for dsp::OutputDADABuffer:

Public Member Functions
	OutputDADABuffer (const std::string &key_string)
	Constructor class for writing BitSeries data to the DADA ring buffer. More...
	~OutputDADABuffer ()
	Destructor.
void	calculation ()
	Write BitSeries data to shared memory.
void	reopen ()
	Open the data ring buffer for writing.
void	close ()
	Write end-of-data to the data ring buffer and close it.
DADAHeader *	get_header ()
	Get the DADA header manager. More...
Public Member Functions inherited from dsp::Sink< BitSeries >
	Sink (const char *_name)
	All sub-classes must specify name and capacity for inplace operation.
	~Sink ()
	Destructor.
void	set_cerr (std::ostream &os) const
	Set verbosity ostream.
Public Member Functions inherited from dsp::Operation
	Operation (const char *name)
	All sub-classes must specify a unique name. More...
	Operation (const Operation &)
	Copy constructor.
virtual	~Operation ()
	Virtual destructor.
virtual bool	operate ()
	Call this method to operate on data Returns false on failure. More...
virtual void	prepare ()
	Prepare for data operations. More...
virtual void	reserve ()
	Reserve the maximum amount of memory required. More...
virtual void	add_extensions (Extensions *)
	Add any extensions.
virtual void	combine (const Operation *)
	Combine accumulated results with another operation. More...
virtual void	report () const
	Report operation statistics.
virtual void	reset ()
	Reset accumulated results to intial values. More...
std::string	get_name () const
	Return the unique name of this operation.
double	get_total_time () const
	Return the total time spent on this Operation in seconds.
double	get_elapsed_time () const
	Get the time spent in the last invocation of operate()
virtual uint64_t	get_total_weights () const
	Return the total number of timesample weights encountered. More...
virtual uint64_t	get_discarded_weights () const
	Return the number of invalid timesample weights encountered.
int	get_id ()
	Inquire the unique instantiation id.
virtual Function	get_function () const
	Get the function classification of this operation.
virtual double	get_delay_time () const
	Get the time delay of this operation, if any, in seconds.
virtual void	set_scratch (Scratch *)
	Set the scratch space.
bool	scratch_was_set () const
virtual uint64_t	bytes_storage () const
	The number of bytes of additional storage used by the operation.
virtual uint64_t	bytes_scratch () const
	The number of bytes of scratch space used by the operation. More...
Public Member Functions inherited from OwnStream
	OwnStream (const OwnStream &)
const OwnStream &	operator= (const OwnStream &)
virtual void	set_cout (std::ostream &) const
Public Member Functions inherited from Reference::Able
	Able (const Able &)
Able &	operator= (const Able &)
unsigned	get_reference_count () const
Public Member Functions inherited from Reference::HeapTracked
	HeapTracked (const HeapTracked &)
HeapTracked &	operator= (const HeapTracked &)
bool	__is_on_heap () const
Public Member Functions inherited from dsp::HasInput< BitSeries >
virtual	~HasInput ()
	Destructor.
virtual void	set_input (const BitSeries *_input)
	Set the container from which input data will be read.
const BitSeries *	get_input () const
	Return pointer to the container from which input data will be read.
bool	has_input () const
	Returns true if input is set.

Protected Attributes
dada_hdu_t *	hdu = nullptr
	Shared memory interface.
bool	connected = false
	Flag indicating connection status.
bool	locked = false
	Flag indicating lock status.
bool	header_written = false
	Header has been written to header block in shared memory.
DADAHeader	dada_header
	Manages the ASCII header that will be written to the header block.
Protected Attributes inherited from dsp::Operation
Scratch *	scratch
	Shared scratch space, if needed.
bool	set_scratch_called
std::string	name
	Operation name.
uint64_t	discarded_weights
	Number of time sample weights encountered that are flagged invalid.
uint64_t	total_weights
	Total number of time sample weights encountered.
RealTimer	optime
	Stop watch records the amount of time spent performing this operation.
int	id
	Unique instantiation id.
bool	prepared
	Set true when preparation optimizations are completed.
Protected Attributes inherited from dsp::HasInput< BitSeries >
Reference::To< const BitSeries >	input
	Container from which input data will be read.

Additional Inherited Members
Public Types inherited from dsp::Operation
enum	Function { Producer, Procedural, Structural }
	The function of the operator. More...
Static Public Member Functions inherited from Reference::Able
static size_t	get_instance_count ()
Static Public Member Functions inherited from Reference::HeapTracked
static void *	operator new (size_t size, void *ptr=0)
static void	operator delete (void *location, void *ptr)
static void	operator delete (void *location)
static size_t	get_heap_queue_size ()
Static Public Attributes inherited from dsp::Operation
static bool	record_time = false
	Global flag enables stopwatch to record the time spent operating. More...
static bool	report_time = true
	Global flag enables report of time spent in operation on descruction. More...
static bool	verbose = false
	Global verbosity flag.
static int	operation_status = 0
	Operations can set this to non-zero in operation() if they fail.
static bool	check_state = true
	Operations should perform internal consistency checks.
static int	instantiation_count = 0
	Counts how many Operation instantiations there have been Used for setting the unique instantiation ID. More...
Protected Member Functions inherited from dsp::Sink< BitSeries >
virtual void	operation ()
	Define the Operation pure virtual method.
Protected Member Functions inherited from dsp::Operation
virtual bool	can_operate ()
	Return false if the operation doesn't have enough data to proceed.
virtual void	set_name (const std::string &_name)
	Set the name!
int	timers_index (const std::string &op_name)
	Returns the index in the 'timers' array of a particular timer.
Protected Member Functions inherited from Reference::Able
Handle *	__reference (bool active) const
void	__dereference (bool auto_delete=true) const

Detailed Description

A class for writing BitSeries data to a DADA ring buffer.

Constructor & Destructor Documentation

OutputDADABuffer()

dsp::OutputDADABuffer::OutputDADABuffer

(

const std::string &

key_string

)

Constructor class for writing BitSeries data to the DADA ring buffer.

Parameters

key_string

The key for accessing the DADA ring buffer.

References hdu.

Member Function Documentation

get_header()

DADAHeader* dsp::OutputDADABuffer::get_header ( )

inline

Get the DADA header manager.

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

• OutputDADABuffer.h
• OutputDADABuffer.C