ObitTableGC.c File Reference

ObitTableGC class function definitions. More...

#include "ObitTableGC.h"
#include "ObitTableList.h"
#include "ObitData.h"

Functions
void	ObitTableGCRowInit (gpointer in)
	Private: Initialize newly instantiated Row object.
void	ObitTableGCRowClear (gpointer in)
	Private: Deallocate Row members.
void	ObitTableGCInit (gpointer in)
	Private: Initialize newly instantiated object.
void	ObitTableGCClear (gpointer in)
	Private: Deallocate members.
ObitTableGCRow *	newObitTableGCRow (ObitTableGC *table)
	Public: Constructor.
gconstpointer	ObitTableGCRowGetClass (void)
	Public: ClassInfo pointer.
ObitTableGC *	newObitTableGC (gchar *name)
	Public: Constructor.
gconstpointer	ObitTableGCGetClass (void)
	Public: ClassInfo pointer.
ObitTableGC *	newObitTableGCValue (gchar *name, ObitData *file, glong *ver, ObitIOAccess access, oint numBand, oint numPol, oint numTabs, ObitErr *err)
	Public: Constructor from values.
ObitTableGC *	ObitTableGCConvert (ObitTable *in)
	Public: Convert an ObitTable to an ObitTableGC.
ObitTableGC *	ObitTableGCCopy (ObitTableGC *in, ObitTableGC *out, ObitErr *err)
	Public: Copy (deep) constructor.
ObitIOCode	ObitTableGCOpen (ObitTableGC *in, ObitIOAccess access, ObitErr *err)
	Public: Create ObitIO structures and open file.
ObitIOCode	ObitTableGCReadRow (ObitTableGC *in, glong iGCRow, ObitTableGCRow *row, ObitErr *err)
	Public: Read a table row.
void	ObitTableGCSetRow (ObitTableGC *in, ObitTableGCRow *row, ObitErr *err)
	Public: Init a table row for write.
ObitIOCode	ObitTableGCWriteRow (ObitTableGC *in, glong iGCRow, ObitTableGCRow *row, ObitErr *err)
	Public: Write a table row.
ObitIOCode	ObitTableGCClose (ObitTableGC *in, ObitErr *err)
	Public: Close file and become inactive.
void	ObitTableGCRowClassInit (void)
	Public: Row Class initializer.
void	ObitTableGCClassInit (void)
	Public: Class initializer.

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Detailed Description

ObitTableGC class function definitions.

This class is derived from the ObitTable class.

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Function Documentation

ObitTableGC* newObitTableGC (  gchar *  name  )

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

ObitTableGCRow* newObitTableGCRow (  ObitTableGC *  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.

ObitTableGC* newObitTableGCValue (  gchar *  name, ObitData *  file, glong *  ver, ObitIOAccess  access, oint  numBand, oint  numPol, oint  numTabs, 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. numBand  The number of Bands(?). numPol  The number of polarizations. numTabs  The number of ??. err  Error stack, returns if not empty. Returns: the new object, NULL on failure.

void ObitTableGCClassInit (  void   )

Public: Class initializer.

void ObitTableGCClear (  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 ObitTableGC* cast to an Obit*.

ObitIOCode ObitTableGCClose (  ObitTableGC *  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

ObitTableGC* ObitTableGCConvert (  ObitTable *  in  )

Public: Convert an ObitTable to an ObitTableGC. 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.

ObitTableGC* ObitTableGCCopy (  ObitTableGC *  in, ObitTableGC *  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 ObitTableGCGetClass (  void   )

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

void ObitTableGCInit (  gpointer  inn  )

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

ObitIOCode ObitTableGCOpen (  ObitTableGC *  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 ObitTableGCReadRow (  ObitTableGC *  in, glong  iGCRow, ObitTableGCRow *  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 iGCRow  Row number, -1 -> next row  Table Row structure to receive data err  ObitErr for reporting errors. Returns: return code, OBIT_IO_OK=> OK

void ObitTableGCRowClassInit (  void   )

Public: Row Class initializer.

void ObitTableGCRowClear (  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 ObitTableGCRow* cast to an Obit*.

gconstpointer ObitTableGCRowGetClass (  void   )

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

void ObitTableGCRowInit (  gpointer  inn  )

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

void ObitTableGCSetRow (  ObitTableGC *  in, ObitTableGCRow *  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 ObitTableGCWriteRow (  ObitTableGC *  in, glong  iGCRow, ObitTableGCRow *  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 ObitTableGCSetRow Parameters: in  Table to read iGCRow  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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