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git://source.winehq.org/git/wine.git
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356 lines
8.3 KiB
C
356 lines
8.3 KiB
C
/*
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* Implementation of the Microsoft Installer (msi.dll)
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*
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* Copyright 2002 Mike McCormack for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "wine/debug.h"
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#include "msi.h"
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#include "msiquery.h"
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#include "objbase.h"
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#include "objidl.h"
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#include "msipriv.h"
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#include "winnls.h"
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#include "query.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msidb);
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/* below is the query interface to a table */
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typedef struct tagMSIORDERVIEW
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{
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MSIVIEW view;
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MSIDATABASE *db;
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MSIVIEW *table;
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UINT *reorder;
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UINT num_cols;
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UINT cols[1];
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} MSIORDERVIEW;
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static UINT ORDER_compare( MSIORDERVIEW *ov, UINT a, UINT b, UINT *swap )
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{
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UINT r, i, a_val = 0, b_val = 0;
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*swap = 0;
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for( i=0; i<ov->num_cols; i++ )
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{
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r = ov->table->ops->fetch_int( ov->table, a, ov->cols[i], &a_val );
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if( r != ERROR_SUCCESS )
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return r;
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r = ov->table->ops->fetch_int( ov->table, b, ov->cols[i], &b_val );
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if( r != ERROR_SUCCESS )
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return r;
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if( a_val != b_val )
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{
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if( a_val > b_val )
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*swap = 1;
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break;
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}
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}
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return ERROR_SUCCESS;
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}
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static UINT ORDER_mergesort( MSIORDERVIEW *ov, UINT left, UINT right )
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{
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UINT r, centre = (left + right)/2, temp, swap = 0, i, j;
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UINT *array = ov->reorder;
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if( left == right )
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return ERROR_SUCCESS;
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/* sort the left half */
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r = ORDER_mergesort( ov, left, centre );
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if( r != ERROR_SUCCESS )
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return r;
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/* sort the right half */
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r = ORDER_mergesort( ov, centre+1, right );
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if( r != ERROR_SUCCESS )
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return r;
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for( i=left, j=centre+1; (i<=centre) && (j<=right); i++ )
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{
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r = ORDER_compare( ov, array[i], array[j], &swap );
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if( r != ERROR_SUCCESS )
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return r;
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if( swap )
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{
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temp = array[j];
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memmove( &array[i+1], &array[i], (j-i)*sizeof (UINT) );
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array[i] = temp;
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j++;
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centre++;
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}
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}
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return ERROR_SUCCESS;
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}
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static UINT ORDER_verify( MSIORDERVIEW *ov, UINT num_rows )
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{
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UINT i, swap, r;
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for( i=1; i<num_rows; i++ )
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{
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r = ORDER_compare( ov, ov->reorder[i-1], ov->reorder[i], &swap );
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if( r != ERROR_SUCCESS )
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return r;
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if( !swap )
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continue;
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ERR("Bad order! %d\n", i);
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return ERROR_FUNCTION_FAILED;
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}
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return ERROR_SUCCESS;
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}
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static UINT ORDER_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p %d %d %p\n", ov, row, col, val );
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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row = ov->reorder[ row ];
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return ov->table->ops->fetch_int( ov->table, row, col, val );
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}
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static UINT ORDER_execute( struct tagMSIVIEW *view, MSIRECORD *record )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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UINT r, num_rows = 0, i;
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TRACE("%p %p\n", ov, record);
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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r = ov->table->ops->execute( ov->table, record );
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if( r != ERROR_SUCCESS )
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return r;
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r = ov->table->ops->get_dimensions( ov->table, &num_rows, NULL );
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if( r != ERROR_SUCCESS )
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return r;
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ov->reorder = msi_alloc( num_rows*sizeof(UINT) );
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if( !ov->reorder )
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return ERROR_FUNCTION_FAILED;
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for( i=0; i<num_rows; i++ )
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ov->reorder[i] = i;
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r = ORDER_mergesort( ov, 0, num_rows - 1 );
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if( r != ERROR_SUCCESS )
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return r;
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r = ORDER_verify( ov, num_rows );
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if( r != ERROR_SUCCESS )
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return r;
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return ERROR_SUCCESS;
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}
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static UINT ORDER_close( struct tagMSIVIEW *view )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p\n", ov );
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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msi_free( ov->reorder );
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ov->reorder = NULL;
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return ov->table->ops->close( ov->table );
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}
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static UINT ORDER_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p %p %p\n", ov, rows, cols );
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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return ov->table->ops->get_dimensions( ov->table, rows, cols );
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}
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static UINT ORDER_get_column_info( struct tagMSIVIEW *view,
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UINT n, LPWSTR *name, UINT *type )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p %d %p %p\n", ov, n, name, type );
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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return ov->table->ops->get_column_info( ov->table, n, name, type );
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}
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static UINT ORDER_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
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MSIRECORD *rec )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p %d %p\n", ov, eModifyMode, rec );
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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return ov->table->ops->modify( ov->table, eModifyMode, rec );
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}
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static UINT ORDER_delete( struct tagMSIVIEW *view )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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TRACE("%p\n", ov );
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if( ov->table )
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ov->table->ops->delete( ov->table );
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msi_free( ov->reorder );
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ov->reorder = NULL;
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msiobj_release( &ov->db->hdr );
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msi_free( ov );
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return ERROR_SUCCESS;
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}
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static UINT ORDER_find_matching_rows( struct tagMSIVIEW *view, UINT col,
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UINT val, UINT *row, MSIITERHANDLE *handle )
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{
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MSIORDERVIEW *ov = (MSIORDERVIEW*)view;
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UINT r;
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TRACE("%p, %d, %u, %p\n", ov, col, val, *handle);
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if( !ov->table )
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return ERROR_FUNCTION_FAILED;
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r = ov->table->ops->find_matching_rows( ov->table, col, val, row, handle );
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*row = ov->reorder[ *row ];
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return r;
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}
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static const MSIVIEWOPS order_ops =
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{
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ORDER_fetch_int,
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NULL,
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NULL,
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NULL,
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ORDER_execute,
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ORDER_close,
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ORDER_get_dimensions,
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ORDER_get_column_info,
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ORDER_modify,
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ORDER_delete,
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ORDER_find_matching_rows
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};
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static UINT ORDER_AddColumn( MSIORDERVIEW *ov, LPCWSTR name )
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{
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UINT n, count, r;
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MSIVIEW *table;
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TRACE("%p adding %s\n", ov, debugstr_w( name ) );
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if( ov->view.ops != &order_ops )
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return ERROR_FUNCTION_FAILED;
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table = ov->table;
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if( !table )
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return ERROR_FUNCTION_FAILED;
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if( !table->ops->get_dimensions )
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return ERROR_FUNCTION_FAILED;
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if( !table->ops->get_column_info )
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return ERROR_FUNCTION_FAILED;
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r = table->ops->get_dimensions( table, NULL, &count );
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if( r != ERROR_SUCCESS )
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return r;
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if( ov->num_cols >= count )
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return ERROR_FUNCTION_FAILED;
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r = VIEW_find_column( table, name, &n );
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if( r != ERROR_SUCCESS )
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return r;
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ov->cols[ov->num_cols] = n;
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TRACE("Ordering by column %s (%d)\n", debugstr_w( name ), n);
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ov->num_cols++;
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return ERROR_SUCCESS;
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}
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UINT ORDER_CreateView( MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table,
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column_info *columns )
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{
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MSIORDERVIEW *ov = NULL;
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UINT count = 0, r;
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column_info *x;
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TRACE("%p\n", ov );
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r = table->ops->get_dimensions( table, NULL, &count );
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if( r != ERROR_SUCCESS )
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{
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ERR("can't get table dimensions\n");
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return r;
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}
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ov = msi_alloc_zero( sizeof *ov + sizeof (UINT) * count );
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if( !ov )
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return ERROR_FUNCTION_FAILED;
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/* fill the structure */
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ov->view.ops = &order_ops;
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msiobj_addref( &db->hdr );
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ov->db = db;
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ov->table = table;
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ov->reorder = NULL;
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ov->num_cols = 0;
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*view = (MSIVIEW*) ov;
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for( x = columns; x ; x = x->next )
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ORDER_AddColumn( ov, x->column );
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return ERROR_SUCCESS;
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}
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