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/*===========================================================================
*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's official duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
*
* Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
*/
#include "row-set-priv.h"
#include "ctx.h"
#include "caps.h"
#include "except.h"
#include "status.h"
#include "mem.h"
#include <vdb/cursor.h>
#include <klib/rc.h>
FILE_ENTRY ( row-set );
/*--------------------------------------------------------------------------
* RowSet
* interface to iterate row-ids
*/
/* Release
* releases reference
*/
void RowSetRelease ( const RowSet *self, const ctx_t *ctx )
{
rc_t rc;
FUNC_ENTRY ( ctx );
if ( self != NULL )
{
switch ( KRefcountDrop ( & self -> refcount, "RowSet" ) )
{
case krefOkay:
break;
case krefWhack:
( * self -> vt -> whack ) ( ( void* ) self, ctx );
break;
case krefZero:
case krefLimit:
case krefNegative:
rc = RC ( rcExe, rcCursor, rcDestroying, rcRefcount, rcInvalid );
INTERNAL_ERROR ( rc, "failed to release RowSet" );
}
}
}
/* Duplicate
*/
RowSet *RowSetDuplicate ( const RowSet *self, const ctx_t *ctx )
{
rc_t rc;
FUNC_ENTRY ( ctx );
if ( self != NULL )
{
switch ( KRefcountAdd ( & self -> refcount, "RowSet" ) )
{
case krefOkay:
case krefWhack:
case krefZero:
break;
case krefLimit:
case krefNegative:
rc = RC ( rcExe, rcCursor, rcAttaching, rcRefcount, rcInvalid );
INTERNAL_ERROR ( rc, "failed to duplicate RowSet" );
return NULL;
}
}
return ( RowSet* ) self;
}
/* Init
*/
void RowSetInit ( RowSet *self, const ctx_t *ctx, const RowSet_vt *vt )
{
self -> vt = vt;
KRefcountInit ( & self -> refcount, 1, "RowSet", "init", "" );
self -> align = 0;
}
/*--------------------------------------------------------------------------
* RowSetIterator
* interface to iterate RowSets
*/
/* MakeRowSetIterator
* make RowSet iterator based upon parameters
* each RowSet will generate row-ids in src order
*
* "sort_idx" [ IN ]
* if NULL, the RowSet objects will auto-generate row-ids
* otherwise, src row-ids will be selected from MapFile
*
* "pairs" [ IN ]
* if true, the row-ids will be generated into an IdxMapping pair
* if false but "idx" is not NULL, the src row-ids will be generated
* into a single-id map, and new ordering preserved in parallel
* if false and "idx" is NULL, no additional structure will be generated
*/
RowSetIterator *TablePairMakeRowSetIterator ( struct TablePair *self, const ctx_t *ctx,
struct MapFile const *sort_idx, bool pairs, bool large )
{
FUNC_ENTRY ( ctx );
if ( sort_idx != NULL )
{
if ( pairs )
return MapFileMakeMappingRowSetIterator ( sort_idx, ctx, large );
return MapFileMakeSortingRowSetIterator ( sort_idx, ctx, large );
}
if ( pairs )
return TablePairMakeMappingRowSetIterator ( self, ctx, large );
return TablePairMakeSimpleRowSetIterator ( self, ctx );
}
/* Release
* releases reference
*/
void RowSetIteratorRelease ( const RowSetIterator *self, const ctx_t *ctx )
{
rc_t rc;
FUNC_ENTRY ( ctx );
if ( self != NULL )
{
switch ( KRefcountDrop ( & self -> refcount, "RowSetIterator" ) )
{
case krefOkay:
break;
case krefWhack:
( * self -> vt -> whack ) ( ( void* ) self, ctx );
break;
case krefZero:
case krefLimit:
case krefNegative:
rc = RC ( rcExe, rcCursor, rcDestroying, rcRefcount, rcInvalid );
INTERNAL_ERROR ( rc, "failed to release RowSetIterator" );
}
}
}
/* Duplicate
*/
RowSetIterator *RowSetIteratorDuplicate ( const RowSetIterator *self, const ctx_t *ctx )
{
rc_t rc;
FUNC_ENTRY ( ctx );
if ( self != NULL )
{
switch ( KRefcountAdd ( & self -> refcount, "RowSetIterator" ) )
{
case krefOkay:
case krefWhack:
case krefZero:
break;
case krefLimit:
case krefNegative:
rc = RC ( rcExe, rcCursor, rcAttaching, rcRefcount, rcInvalid );
INTERNAL_ERROR ( rc, "failed to duplicate RowSetIterator" );
return NULL;
}
}
return ( RowSetIterator* ) self;
}
/* Init
*/
void RowSetIteratorInit ( RowSetIterator *self, const ctx_t *ctx, const RowSetIterator_vt *vt )
{
self -> vt = vt;
KRefcountInit ( & self -> refcount, 1, "RowSetIterator", "init", "" );
self -> align = 0;
}
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