winealsa.drv: Add ability to recover from underruns to directsound driver.
[wine/wine64.git] / dlls / msi / select.c
blob070bbfa8bcfcd851230a8c3183cfafd7947518a2
1 /*
2 * Implementation of the Microsoft Installer (msi.dll)
4 * Copyright 2002-2004 Mike McCormack for CodeWeavers
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include <stdarg.h>
23 #include "windef.h"
24 #include "winbase.h"
25 #include "winerror.h"
26 #include "wine/debug.h"
27 #include "msi.h"
28 #include "msiquery.h"
29 #include "objbase.h"
30 #include "objidl.h"
31 #include "msipriv.h"
32 #include "winnls.h"
34 #include "query.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
39 /* below is the query interface to a table */
41 typedef struct tagMSISELECTVIEW
43 MSIVIEW view;
44 MSIDATABASE *db;
45 MSIVIEW *table;
46 UINT num_cols;
47 UINT max_cols;
48 UINT cols[1];
49 } MSISELECTVIEW;
51 static UINT SELECT_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
53 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
55 TRACE("%p %d %d %p\n", sv, row, col, val );
57 if( !sv->table )
58 return ERROR_FUNCTION_FAILED;
60 if( (col==0) || (col>sv->num_cols) )
61 return ERROR_FUNCTION_FAILED;
63 col = sv->cols[ col - 1 ];
65 return sv->table->ops->fetch_int( sv->table, row, col, val );
68 static UINT SELECT_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
70 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
72 TRACE("%p %d %d %p\n", sv, row, col, stm );
74 if( !sv->table )
75 return ERROR_FUNCTION_FAILED;
77 if( (col==0) || (col>sv->num_cols) )
78 return ERROR_FUNCTION_FAILED;
80 col = sv->cols[ col - 1 ];
82 return sv->table->ops->fetch_stream( sv->table, row, col, stm );
85 static UINT SELECT_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
87 MSISELECTVIEW *sv = (MSISELECTVIEW *)view;
89 TRACE("%p %d %p\n", sv, row, rec );
91 if( !sv->table )
92 return ERROR_FUNCTION_FAILED;
94 return msi_view_get_row(sv->db, view, row, rec);
97 static UINT SELECT_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
99 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
100 UINT i, expanded_mask = 0, r = ERROR_SUCCESS, col_count = 0;
101 MSIRECORD *expanded;
103 TRACE("%p %d %p %08x\n", sv, row, rec, mask );
105 if ( !sv->table )
106 return ERROR_FUNCTION_FAILED;
108 /* test if any of the mask bits are invalid */
109 if ( mask >= (1<<sv->num_cols) )
110 return ERROR_INVALID_PARAMETER;
112 /* find the number of columns in the table below */
113 r = sv->table->ops->get_dimensions( sv->table, NULL, &col_count );
114 if( r )
115 return r;
117 /* expand the record to the right size for the underlying table */
118 expanded = MSI_CreateRecord( col_count );
119 if ( !expanded )
120 return ERROR_FUNCTION_FAILED;
122 /* move the right fields across */
123 for ( i=0; i<sv->num_cols; i++ )
125 r = MSI_RecordCopyField( rec, i+1, expanded, sv->cols[ i ] );
126 if (r != ERROR_SUCCESS)
127 break;
128 expanded_mask |= (1<<(sv->cols[i]-1));
131 /* set the row in the underlying table */
132 if (r == ERROR_SUCCESS)
133 r = sv->table->ops->set_row( sv->table, row, expanded, expanded_mask );
135 msiobj_release( &expanded->hdr );
136 return r;
139 static UINT SELECT_insert_row( struct tagMSIVIEW *view, MSIRECORD *record, BOOL temporary )
141 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
142 UINT i, table_cols, r;
143 MSIRECORD *outrec;
145 TRACE("%p %p\n", sv, record );
147 if ( !sv->table )
148 return ERROR_FUNCTION_FAILED;
150 /* rearrange the record to suit the table */
151 r = sv->table->ops->get_dimensions( sv->table, NULL, &table_cols );
152 if (r != ERROR_SUCCESS)
153 return r;
155 outrec = MSI_CreateRecord( table_cols + 1 );
157 for (i=0; i<sv->num_cols; i++)
159 r = MSI_RecordCopyField( record, i+1, outrec, sv->cols[i] );
160 if (r != ERROR_SUCCESS)
161 goto fail;
164 r = sv->table->ops->insert_row( sv->table, outrec, temporary );
166 fail:
167 msiobj_release( &outrec->hdr );
169 return r;
172 static UINT SELECT_execute( struct tagMSIVIEW *view, MSIRECORD *record )
174 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
176 TRACE("%p %p\n", sv, record);
178 if( !sv->table )
179 return ERROR_FUNCTION_FAILED;
181 return sv->table->ops->execute( sv->table, record );
184 static UINT SELECT_close( struct tagMSIVIEW *view )
186 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
188 TRACE("%p\n", sv );
190 if( !sv->table )
191 return ERROR_FUNCTION_FAILED;
193 return sv->table->ops->close( sv->table );
196 static UINT SELECT_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
198 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
200 TRACE("%p %p %p\n", sv, rows, cols );
202 if( !sv->table )
203 return ERROR_FUNCTION_FAILED;
205 if( cols )
206 *cols = sv->num_cols;
208 return sv->table->ops->get_dimensions( sv->table, rows, NULL );
211 static UINT SELECT_get_column_info( struct tagMSIVIEW *view,
212 UINT n, LPWSTR *name, UINT *type )
214 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
216 TRACE("%p %d %p %p\n", sv, n, name, type );
218 if( !sv->table )
219 return ERROR_FUNCTION_FAILED;
221 if( (n==0) || (n>sv->num_cols) )
222 return ERROR_FUNCTION_FAILED;
224 n = sv->cols[ n - 1 ];
226 return sv->table->ops->get_column_info( sv->table, n, name, type );
229 static UINT msi_select_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
231 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
232 UINT r, i, num_columns, col, type, val;
233 LPWSTR name;
234 LPCWSTR str;
235 MSIRECORD *mod;
237 r = SELECT_get_dimensions(view, NULL, &num_columns);
238 if (r != ERROR_SUCCESS)
239 return r;
241 r = sv->table->ops->get_row(sv->table, row - 1, &mod);
242 if (r != ERROR_SUCCESS)
243 return r;
245 for (i = 0; i < num_columns; i++)
247 col = sv->cols[i];
249 r = SELECT_get_column_info(view, i + 1, &name, &type);
250 msi_free(name);
251 if (r != ERROR_SUCCESS)
253 ERR("Failed to get column information: %d\n", r);
254 goto done;
257 if (MSITYPE_IS_BINARY(type))
259 ERR("Cannot modify binary data!\n");
260 r = ERROR_FUNCTION_FAILED;
261 goto done;
263 else if (type & MSITYPE_STRING)
265 str = MSI_RecordGetString(rec, i + 1);
266 r = MSI_RecordSetStringW(mod, col, str);
268 else
270 val = MSI_RecordGetInteger(rec, i + 1);
271 r = MSI_RecordSetInteger(mod, col, val);
274 if (r != ERROR_SUCCESS)
276 ERR("Failed to modify record: %d\n", r);
277 goto done;
281 r = sv->table->ops->modify(sv->table, MSIMODIFY_UPDATE, mod, row);
283 done:
284 msiobj_release(&mod->hdr);
285 return r;
288 static UINT SELECT_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
289 MSIRECORD *rec, UINT row )
291 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
293 TRACE("%p %d %p %d\n", sv, eModifyMode, rec, row );
295 if( !sv->table )
296 return ERROR_FUNCTION_FAILED;
298 if (eModifyMode == MSIMODIFY_UPDATE)
299 return msi_select_update(view, rec, row);
301 return sv->table->ops->modify( sv->table, eModifyMode, rec, row );
304 static UINT SELECT_delete( struct tagMSIVIEW *view )
306 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
308 TRACE("%p\n", sv );
310 if( sv->table )
311 sv->table->ops->delete( sv->table );
312 sv->table = NULL;
314 msi_free( sv );
316 return ERROR_SUCCESS;
319 static UINT SELECT_find_matching_rows( struct tagMSIVIEW *view, UINT col,
320 UINT val, UINT *row, MSIITERHANDLE *handle )
322 MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
324 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
326 if( !sv->table )
327 return ERROR_FUNCTION_FAILED;
329 if( (col==0) || (col>sv->num_cols) )
330 return ERROR_FUNCTION_FAILED;
332 col = sv->cols[ col - 1 ];
334 return sv->table->ops->find_matching_rows( sv->table, col, val, row, handle );
337 static UINT SELECT_sort(struct tagMSIVIEW *view, column_info *columns)
339 MSISELECTVIEW *sv = (MSISELECTVIEW *)view;
341 TRACE("%p %p\n", view, columns);
343 return sv->table->ops->sort( sv->table, columns );
346 static const MSIVIEWOPS select_ops =
348 SELECT_fetch_int,
349 SELECT_fetch_stream,
350 SELECT_get_row,
351 SELECT_set_row,
352 SELECT_insert_row,
353 NULL,
354 SELECT_execute,
355 SELECT_close,
356 SELECT_get_dimensions,
357 SELECT_get_column_info,
358 SELECT_modify,
359 SELECT_delete,
360 SELECT_find_matching_rows,
361 NULL,
362 NULL,
363 NULL,
364 NULL,
365 SELECT_sort,
368 static UINT SELECT_AddColumn( MSISELECTVIEW *sv, LPCWSTR name )
370 UINT r, n=0;
371 MSIVIEW *table;
373 TRACE("%p adding %s\n", sv, debugstr_w( name ) );
375 if( sv->view.ops != &select_ops )
376 return ERROR_FUNCTION_FAILED;
378 table = sv->table;
379 if( !table )
380 return ERROR_FUNCTION_FAILED;
381 if( !table->ops->get_dimensions )
382 return ERROR_FUNCTION_FAILED;
383 if( !table->ops->get_column_info )
384 return ERROR_FUNCTION_FAILED;
386 if( sv->num_cols >= sv->max_cols )
387 return ERROR_FUNCTION_FAILED;
389 r = VIEW_find_column( table, name, &n );
390 if( r != ERROR_SUCCESS )
391 return r;
393 sv->cols[sv->num_cols] = n;
394 TRACE("Translating column %s from %d -> %d\n",
395 debugstr_w( name ), sv->num_cols, n);
397 sv->num_cols++;
399 return ERROR_SUCCESS;
402 static int select_count_columns( const column_info *col )
404 int n;
405 for (n = 0; col; col = col->next)
406 n++;
407 return n;
410 UINT SELECT_CreateView( MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table,
411 const column_info *columns )
413 MSISELECTVIEW *sv = NULL;
414 UINT count = 0, r = ERROR_SUCCESS;
416 TRACE("%p\n", sv );
418 count = select_count_columns( columns );
420 sv = msi_alloc_zero( sizeof *sv + count*sizeof (UINT) );
421 if( !sv )
422 return ERROR_FUNCTION_FAILED;
424 /* fill the structure */
425 sv->view.ops = &select_ops;
426 sv->db = db;
427 sv->table = table;
428 sv->num_cols = 0;
429 sv->max_cols = count;
431 while( columns )
433 r = SELECT_AddColumn( sv, columns->column );
434 if( r )
435 break;
436 columns = columns->next;
439 if( r == ERROR_SUCCESS )
440 *view = &sv->view;
441 else
442 msi_free( sv );
444 return r;