distinct.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "msipriv.h"
#include "winnls.h"
#include "query.h"

Include dependency graph for distinct.c:

Go to the source code of this file.

Classes
struct	distinct_set
struct	distinct_view

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (msidb)
static struct distinct_set **	distinct_insert (struct distinct_set **x, UINT val, UINT row)
static void	distinct_free (struct distinct_set *x)
static UINT	DISTINCT_fetch_int (struct tagMSIVIEW *view, UINT row, UINT col, UINT *val)
static UINT	DISTINCT_execute (struct tagMSIVIEW *view, MSIRECORD *record)
static UINT	DISTINCT_close (struct tagMSIVIEW *view)
static UINT	DISTINCT_get_dimensions (struct tagMSIVIEW *view, UINT *rows, UINT *cols)
static UINT	DISTINCT_get_column_info (struct tagMSIVIEW *view, UINT n, LPCWSTR *name, UINT *type, BOOL *temporary, LPCWSTR *table_name)
static UINT	DISTINCT_modify (struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
static UINT	DISTINCT_delete (struct tagMSIVIEW *view)
UINT	DISTINCT_CreateView (MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table)

Variables
static const MSIVIEWOPS	distinct_ops

Function Documentation

DISTINCT_close()

static UINT DISTINCT_close ( struct tagMSIVIEW *  view )

static

Definition at line 172 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p\n", dv );
 
    if( !dv->table )
         return ERROR_FUNCTION_FAILED;
 
    free( dv->translation );
    dv->translation = NULL;
    dv->row_count = 0;
 
    return dv->table->ops->close( dv->table );
}

DISTINCT_CreateView()

UINT DISTINCT_CreateView	(	MSIDATABASE *	db,
		MSIVIEW **	view,
		MSIVIEW *	table
	)

Definition at line 273 of file distinct.c.

{
    struct distinct_view *dv = NULL;
    UINT count = 0, r;
 
    TRACE("%p\n", dv );
 
    r = table->ops->get_dimensions( table, NULL, &count );
    if( r != ERROR_SUCCESS )
    {
        ERR("can't get table dimensions\n");
        return r;
    }
 
    dv = calloc( 1, sizeof *dv );
    if( !dv )
        return ERROR_FUNCTION_FAILED;
 
    /* fill the structure */
    dv->view.ops = &distinct_ops;
    msiobj_addref( &db->hdr );
    dv->db = db;
    dv->table = table;
    dv->translation = NULL;
    dv->row_count = 0;
    *view = (MSIVIEW*) dv;
 
    return ERROR_SUCCESS;
}

DISTINCT_delete()

static UINT DISTINCT_delete ( struct tagMSIVIEW *  view )

static

Definition at line 234 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p\n", dv );
 
    if( dv->table )
        dv->table->ops->delete( dv->table );
 
    free( dv->translation );
    msiobj_release( &dv->db->hdr );
    free( dv );
 
    return ERROR_SUCCESS;
}

DISTINCT_execute()

static UINT DISTINCT_execute ( struct tagMSIVIEW *  view, MSIRECORD *  record  )

static

Definition at line 110 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
    UINT r, i, j, r_count, c_count;
    struct distinct_set *rowset = NULL;
 
    TRACE("%p %p\n", dv, record);
 
    if( !dv->table )
         return ERROR_FUNCTION_FAILED;
 
    r = dv->table->ops->execute( dv->table, record );
    if( r != ERROR_SUCCESS )
        return r;
 
    r = dv->table->ops->get_dimensions( dv->table, &r_count, &c_count );
    if( r != ERROR_SUCCESS )
        return r;
 
    dv->translation = malloc( r_count * sizeof(UINT) );
    if( !dv->translation )
        return ERROR_FUNCTION_FAILED;
 
    /* build it */
    for( i=0; i<r_count; i++ )
    {
        struct distinct_set **x = &rowset;
 
        for( j=1; j<=c_count; j++ )
        {
            UINT val = 0;
            r = dv->table->ops->fetch_int( dv->table, i, j, &val );
            if( r != ERROR_SUCCESS )
            {
                ERR("Failed to fetch int at %d %d\n", i, j );
                distinct_free( rowset );
                return r;
            }
            x = distinct_insert( x, val, i );
            if( !*x )
            {
                ERR("Failed to insert at %d %d\n", i, j );
                distinct_free( rowset );
                return ERROR_FUNCTION_FAILED;
            }
            if( j != c_count )
                x = &(*x)->nextcol;
        }
 
        /* check if it was distinct and if so, include it */
        if( (*x)->row == i )
        {
            TRACE("Row %d -> %d\n", dv->row_count, i);
            dv->translation[dv->row_count++] = i;
        }
    }
 
    distinct_free( rowset );
 
    return ERROR_SUCCESS;
}

DISTINCT_fetch_int()

static UINT DISTINCT_fetch_int ( struct tagMSIVIEW *  view, UINT  row, UINT  col, UINT *  val  )

static

Definition at line 93 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p %d %d %p\n", dv, row, col, val );
 
    if( !dv->table )
        return ERROR_FUNCTION_FAILED;
 
    if( row >= dv->row_count )
        return ERROR_INVALID_PARAMETER;
 
    row = dv->translation[ row ];
 
    return dv->table->ops->fetch_int( dv->table, row, col, val );
}

distinct_free()

static void distinct_free ( struct distinct_set *  x )

static

Definition at line 82 of file distinct.c.

{
    while( x )
    {
        struct distinct_set *next = x->nextrow;
        distinct_free( x->nextcol );
        free( x );
        x = next;
    }
}

Referenced by DISTINCT_execute(), and distinct_free().

DISTINCT_get_column_info()

static UINT DISTINCT_get_column_info ( struct tagMSIVIEW *  view, UINT  n, LPCWSTR *  name, UINT *  type, BOOL *  temporary, LPCWSTR *  table_name  )

static

Definition at line 207 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p %d %p %p %p %p\n", dv, n, name, type, temporary, table_name );
 
    if( !dv->table )
         return ERROR_FUNCTION_FAILED;
 
    return dv->table->ops->get_column_info( dv->table, n, name,
                                            type, temporary, table_name );
}

DISTINCT_get_dimensions()

static UINT DISTINCT_get_dimensions ( struct tagMSIVIEW *  view, UINT *  rows, UINT *  cols  )

static

Definition at line 188 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p %p %p\n", dv, rows, cols );
 
    if( !dv->table )
        return ERROR_FUNCTION_FAILED;
 
    if( rows )
    {
        if( !dv->translation )
            return ERROR_FUNCTION_FAILED;
        *rows = dv->row_count;
    }
 
    return dv->table->ops->get_dimensions( dv->table, NULL, cols );
}

distinct_insert()

static struct distinct_set ** distinct_insert ( struct distinct_set **  x, UINT  val, UINT  row  )

static

Definition at line 56 of file distinct.c.

{
    /* horrible O(n) find */
    while( *x )
    {
        if( (*x)->val == val )
        {
            (*x)->count++;
            return x;
        }
        x = &(*x)->nextrow;
    }
 
    /* nothing found, so add one */
    *x = malloc( sizeof(**x) );
    if( *x )
    {
        (*x)->val = val;
        (*x)->count = 1;
        (*x)->row = row;
        (*x)->nextrow = NULL;
        (*x)->nextcol = NULL;
    }
    return x;
}

Referenced by DISTINCT_execute().

DISTINCT_modify()

static UINT DISTINCT_modify ( struct tagMSIVIEW *  view, MSIMODIFY  eModifyMode, MSIRECORD *  rec, UINT  row  )

static

Definition at line 221 of file distinct.c.

{
    struct distinct_view *dv = (struct distinct_view *)view;
 
    TRACE("%p %d %p\n", dv, eModifyMode, rec );
 
    if( !dv->table )
         return ERROR_FUNCTION_FAILED;
 
    return dv->table->ops->modify( dv->table, eModifyMode, rec, row );
}

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

msidb

)

Variable Documentation

distinct_ops

const MSIVIEWOPS distinct_ops

static

Initial value:

=
{
    DISTINCT_fetch_int,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    DISTINCT_execute,
    DISTINCT_close,
    DISTINCT_get_dimensions,
    DISTINCT_get_column_info,
    DISTINCT_modify,
    DISTINCT_delete,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
}

Definition at line 250 of file distinct.c.

Referenced by DISTINCT_CreateView().