/usr/include/ncbi-vdb/kdb/rowset.h is in libncbi-vdb-dev 2.8.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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.
*
* ===========================================================================
*
*/
#ifndef _h_kdb_rowset_
#define _h_kdb_rowset_
#ifndef _h_kfc_refcount_
#include <kfc/refcount.h>
#endif
#ifndef _h_kdb_extern_
#include <kdb/extern.h>
#endif
#ifndef _h_klib_defs_
#include <klib/defs.h>
#endif
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
/*--------------------------------------------------------------------------
* forwards
*/
struct KTable;
/*--------------------------------------------------------------------------
* KRowSet
* a subset of matching rows
*/
typedef struct KRowSet KRowSet;
/* MakeRowSet
* may add others...
*/
KDB_EXTERN KRowSet * CC KTableMakeRowSet ( struct KTable const * self, ctx_t ctx );
/* Duplicate
* Release
* ignores NULL references
*/
static __inline__
KRowSet * KRowSetDuplicate ( const KRowSet * self, ctx_t ctx, caps_t rm )
{
return ( KRowSet * ) KRefcountDuplicate_v1 ( TO_REFCOUNT_V1 ( self ), ctx, rm );
}
static __inline__
void KRowSetRelease ( const KRowSet * self, ctx_t ctx )
{
KRefcountRelease_v1 ( TO_REFCOUNT_V1 ( self ), ctx );
}
/* AddRowId
* add a single row to set
*
* "row_id" [ IN ] - row-id to be added
*/
KDB_EXTERN void CC KRowSetAddRowId ( KRowSet * self, ctx_t ctx, int64_t row_id );
/* AddRowIdRange
* adds row-ids within specified range
*
* "row_id" [ IN ] and "count" [ IN ] - range of row-ids to be added
*/
KDB_EXTERN void CC KRowSetAddRowIdRange ( KRowSet * self, ctx_t ctx, int64_t row_id, uint64_t count );
/* needed (? maybe ?)
* add an array of row-ids in random order
*/
/* GetNumRowIds
* return the number of elements in set
*/
KDB_EXTERN uint64_t CC KRowSetGetNumRowIds ( const KRowSet * self, ctx_t ctx );
/* HasRowId
* checks if element is present in set
*/
KDB_EXTERN bool CC KRowSetHasRowId ( const KRowSet * self, ctx_t ctx, int64_t row_id );
/* Visit
* execute a function on each row-id in set
*/
KDB_EXTERN void CC KRowSetVisit ( const KRowSet * self, ctx_t ctx,
void ( CC * f ) ( ctx_t ctx, int64_t row_id, void * data ), void * data );
/* Intersect
* performs an intersection between two sets and returns the result
*/
KDB_EXTERN KRowSet * CC KRowSetIntersect ( ctx_t ctx, const KRowSet * a, const KRowSet * b );
/* Union
* performs a union between two sets and returns the result
*/
KDB_EXTERN KRowSet * CC KRowSetUnion ( ctx_t ctx, const KRowSet * a, const KRowSet * b );
/*--------------------------------------------------------------------------
* KRowSetIterator
* an iterator over rowset
*/
typedef struct KRowSetIterator KRowSetIterator;
/* MakeIterator
* create an iterator on set
* initially set to first row-id in set
* iterator always goes over rows in sorted order
* after creating an iterator, any modifications of rowset will result in undefined behavior
* when accessing the iterator (except IteratorRelease function)
*/
KDB_EXTERN KRowSetIterator * CC KRowSetMakeIterator ( const KRowSet * self, ctx_t ctx );
/* Duplicate
* Release
* ignores NULL references
*/
static __inline__
KRowSet * KRowSetIteratorDuplicate ( const KRowSetIterator * self, ctx_t ctx, caps_t rm )
{
return ( KRowSet * ) KRefcountDuplicate_v1 ( TO_REFCOUNT_V1 ( self ), ctx, rm );
}
static __inline__
void KRowSetIteratorRelease ( const KRowSetIterator * self, ctx_t ctx )
{
KRefcountRelease_v1 ( TO_REFCOUNT_V1 ( self ), ctx );
}
/* Next
* advance iterator to next row-id
* advance to first row-id on initial invocation
* advance to next row-id subsequently
* returns false if no more row-ids are available.
*/
KDB_EXTERN bool CC KRowSetIteratorNext ( KRowSetIterator * self, ctx_t ctx );
/*IsValid
* check if iterator points to a valid row
*
* returns false when iterator points somewhere outside of a row set
*/
KDB_EXTERN bool CC KRowSetIteratorIsValid ( const KRowSetIterator * self );
/* GetRowId
* report current row id
*/
KDB_EXTERN int64_t CC KRowSetIteratorGetRowId ( const KRowSetIterator * self, ctx_t ctx );
#ifdef __cplusplus
}
#endif
#endif /* _h_kdb_rowset_ */
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