ObitTableVL.c File Reference

ObitTableVL class function definitions. More...

#include "ObitTableVL.h"
#include "ObitTableList.h"
#include "ObitData.h"

Functions
void	ObitTableVLRowInit (gpointer in)
	Private: Initialize newly instantiated Row object.
void	ObitTableVLRowClear (gpointer in)
	Private: Deallocate Row members.
void	ObitTableVLInit (gpointer in)
	Private: Initialize newly instantiated object.
void	ObitTableVLClear (gpointer in)
	Private: Deallocate members.
ObitTableVLRow *	newObitTableVLRow (ObitTableVL *table)
	Public: Constructor.
gconstpointer	ObitTableVLRowGetClass (void)
	Public: ClassInfo pointer.
ObitTableVL *	newObitTableVL (gchar *name)
	Public: Constructor.
gconstpointer	ObitTableVLGetClass (void)
	Public: ClassInfo pointer.
ObitTableVL *	newObitTableVLValue (gchar *name, ObitData *file, glong *ver, ObitIOAccess access, ObitErr *err)
	Public: Constructor from values.
ObitTableVL *	ObitTableVLConvert (ObitTable *in)
	Public: Convert an ObitTable to an ObitTableVL.
ObitTableVL *	ObitTableVLCopy (ObitTableVL *in, ObitTableVL *out, ObitErr *err)
	Public: Copy (deep) constructor.
ObitIOCode	ObitTableVLOpen (ObitTableVL *in, ObitIOAccess access, ObitErr *err)
	Public: Create ObitIO structures and open file.
ObitIOCode	ObitTableVLReadRow (ObitTableVL *in, glong iVLRow, ObitTableVLRow *row, ObitErr *err)
	Public: Read a table row.
void	ObitTableVLSetRow (ObitTableVL *in, ObitTableVLRow *row, ObitErr *err)
	Public: Init a table row for write.
ObitIOCode	ObitTableVLWriteRow (ObitTableVL *in, glong iVLRow, ObitTableVLRow *row, ObitErr *err)
	Public: Write a table row.
ObitIOCode	ObitTableVLClose (ObitTableVL *in, ObitErr *err)
	Public: Close file and become inactive.
void	ObitTableVLRowClassInit (void)
	Public: Row Class initializer.
void	ObitTableVLClassInit (void)
	Public: Class initializer.

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Detailed Description

ObitTableVL class function definitions.

This class is derived from the ObitTable class.

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Function Documentation

ObitTableVL* newObitTableVL (  gchar *  name  )

Public: Constructor. Initializes class if needed on first call. Parameters: name  An optional name for the object. Returns: the new object.

ObitTableVLRow* newObitTableVLRow (  ObitTableVL *  table  )

Public: Constructor. If table is open and for write, the row is attached to the buffer Initializes Row class if needed on first call. Parameters: name  An optional name for the object. Returns: the new object.

ObitTableVL* newObitTableVLValue (  gchar *  name, ObitData *  file, glong *  ver, ObitIOAccess  access, ObitErr *  err )

Public: Constructor from values. Creates a new table structure and attaches to the TableList of file. If the specified table already exists then it is returned. Initializes class if needed on first call. Forces an update of any disk resident structures (e.g. AIPS header). Parameters: name  An optional name for the object. file  ObitData which which the table is to be associated. ver  Table version number. 0=> add higher, value used returned access  access (OBIT_IO_ReadOnly, means do not create if it doesn't exist. err  Error stack, returns if not empty. Returns: the new object, NULL on failure.

void ObitTableVLClassInit (  void   )

Public: Class initializer.

void ObitTableVLClear (  gpointer  inn  )

Private: Deallocate members. Does (recursive) deallocation of parent class members. For some reason this wasn't build into the GType class. Parameters: inn  Pointer to the object to deallocate. Actually it should be an ObitTableVL* cast to an Obit*.

ObitIOCode ObitTableVLClose (  ObitTableVL *  in, ObitErr *  err )

Public: Close file and become inactive. Parameters: in  Pointer to object to be closed. err  ObitErr for reporting errors. Returns: error code, OBIT_IO_OK=> OK

ObitTableVL* ObitTableVLConvert (  ObitTable *  in  )

Public: Convert an ObitTable to an ObitTableVL. New object will have references to members of in. Parameters: in  The object to copy, will still exist afterwards and should be Unrefed if not needed. Returns: pointer to the new object.

ObitTableVL* ObitTableVLCopy (  ObitTableVL *  in, ObitTableVL *  out, ObitErr *  err )

Public: Copy (deep) constructor. Copies are made of complex members including disk files; these will be copied applying whatever selection is associated with the input. Objects should be closed on input and will be closed on output. In order for the disk file structures to be copied, the output file must be sufficiently defined that it can be written. The copy will be attempted but no errors will be logged until both input and output have been successfully opened. ObitInfoList and ObitThread members are only copied if the output object didn't previously exist. Parent class members are included but any derived class info is ignored. Parameters: in  The object to copy out  An existing object pointer for output or NULL if none exists. err  Error stack, returns if not empty. Returns: pointer to the new object.

gconstpointer ObitTableVLGetClass (  void   )

Public: ClassInfo pointer. Returns: pointer to the class structure.

void ObitTableVLInit (  gpointer  inn  )

Private: Initialize newly instantiated object. Parent classes portions are (recursively) initialized first Parameters: inn  Pointer to the object to initialize.

ObitIOCode ObitTableVLOpen (  ObitTableVL *  in, ObitIOAccess  access, ObitErr *  err )

Public: Create ObitIO structures and open file. The image descriptor is read if OBIT_IO_ReadOnly or OBIT_IO_ReadWrite and written to disk if opened OBIT_IO_WriteOnly. After the file has been opened the member, buffer is initialized for reading/storing the table unless member bufferSize is <0. If the requested version ("Ver" in InfoList) is 0 then the highest numbered table of the same type is opened on Read or Read/Write, or a new table is created on on Write. The file etc. info should have been stored in the ObitInfoList: "FileType" OBIT_int scalar = OBIT_IO_FITS or OBIT_IO_AIPS for file type (see class documentation for details). "nRowPIO" OBIT_int scalar = Maximum number of table rows per transfer, this is the target size for Reads (may be fewer) and is used to create buffers. Parameters: in  Pointer to object to be opened. access  access (OBIT_IO_ReadOnly,OBIT_IO_ReadWrite, or OBIT_IO_WriteOnly). If OBIT_IO_WriteOnly any existing data in the output file will be lost. err  ObitErr for reporting errors. Returns: return code, OBIT_IO_OK=> OK

ObitIOCode ObitTableVLReadRow (  ObitTableVL *  in, glong  iVLRow, ObitTableVLRow *  row, ObitErr *  err )

Public: Read a table row. Scalar values are copied but for array values, pointers into the data array are returned. Parameters: in  Table to read iVLRow  Row number, -1 -> next row  Table Row structure to receive data err  ObitErr for reporting errors. Returns: return code, OBIT_IO_OK=> OK

void ObitTableVLRowClassInit (  void   )

Public: Row Class initializer.

void ObitTableVLRowClear (  gpointer  inn  )

Private: Deallocate Row members. Does (recursive) deallocation of parent class members. For some reason this wasn't build into the GType class. Parameters: inn  Pointer to the object to deallocate. Actually it should be an ObitTableVLRow* cast to an Obit*.

gconstpointer ObitTableVLRowGetClass (  void   )

Public: ClassInfo pointer. Returns: pointer to the Row class structure.

void ObitTableVLRowInit (  gpointer  inn  )

Private: Initialize newly instantiated Row object. Parent classes portions are (recursively) initialized first Parameters: inn  Pointer to the object to initialize.

void ObitTableVLSetRow (  ObitTableVL *  in, ObitTableVLRow *  row, ObitErr *  err )

Public: Init a table row for write. This is only useful prior to filling a row structure in preparation . for a WriteRow operation. Array members of the Row structure are . pointers to independently allocated memory, this routine allows using . the table IO buffer instead of allocating yet more memory.. This routine need only be called once to initialize a Row structure for write.. Parameters: in  Table with buffer to be written row  Table Row structure to attach err  ObitErr for reporting errors.

ObitIOCode ObitTableVLWriteRow (  ObitTableVL *  in, glong  iVLRow, ObitTableVLRow *  row, ObitErr *  err )

Public: Write a table row. Before calling this routine, the row structure needs to be initialized and filled with data. The array members of the row structure are pointers to independently allocated memory. These pointers can be set to the correct table buffer locations using ObitTableVLSetRow Parameters: in  Table to read iVLRow  Row number, -1 -> next row  Table Row structure containing data err  ObitErr for reporting errors. Returns: return code, OBIT_IO_OK=> OK

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