[MSI]
[reactos.git] / reactos / dll / win32 / msi / table.c
1 /*
2 * Implementation of the Microsoft Installer (msi.dll)
3 *
4 * Copyright 2002-2005 Mike McCormack for CodeWeavers
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include <stdarg.h>
22 #include <assert.h>
23
24 #define COBJMACROS
25 #define NONAMELESSUNION
26 #define NONAMELESSSTRUCT
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "winerror.h"
31 #include "msi.h"
32 #include "msiquery.h"
33 #include "objbase.h"
34 #include "objidl.h"
35 #include "winnls.h"
36 #include "msipriv.h"
37 #include "query.h"
38
39 #include "wine/debug.h"
40 #include "wine/unicode.h"
41
42 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
43
44 #define MSITABLE_HASH_TABLE_SIZE 37
45
46 typedef struct tagMSICOLUMNHASHENTRY
47 {
48 struct tagMSICOLUMNHASHENTRY *next;
49 UINT value;
50 UINT row;
51 } MSICOLUMNHASHENTRY;
52
53 typedef struct tagMSICOLUMNINFO
54 {
55 LPWSTR tablename;
56 UINT number;
57 LPWSTR colname;
58 UINT type;
59 UINT offset;
60 INT ref_count;
61 BOOL temporary;
62 MSICOLUMNHASHENTRY **hash_table;
63 } MSICOLUMNINFO;
64
65 typedef struct tagMSIORDERINFO
66 {
67 UINT *reorder;
68 UINT num_cols;
69 UINT cols[1];
70 } MSIORDERINFO;
71
72 struct tagMSITABLE
73 {
74 BYTE **data;
75 BOOL *data_persistent;
76 UINT row_count;
77 struct list entry;
78 MSICOLUMNINFO *colinfo;
79 UINT col_count;
80 MSICONDITION persistent;
81 INT ref_count;
82 WCHAR name[1];
83 };
84
85 static const WCHAR szStringData[] = {
86 '_','S','t','r','i','n','g','D','a','t','a',0 };
87 static const WCHAR szStringPool[] = {
88 '_','S','t','r','i','n','g','P','o','o','l',0 };
89
90 /* information for default tables */
91 static WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
92 static WCHAR szTable[] = { 'T','a','b','l','e',0 };
93 static WCHAR szName[] = { 'N','a','m','e',0 };
94 static WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
95 static WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
96 static WCHAR szType[] = { 'T','y','p','e',0 };
97
98 static const MSICOLUMNINFO _Columns_cols[4] = {
99 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
100 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2, 0, 0, NULL },
101 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4, 0, 0, NULL },
102 { szColumns, 4, szType, MSITYPE_VALID | 2, 6, 0, 0, NULL },
103 };
104
105 static const MSICOLUMNINFO _Tables_cols[1] = {
106 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
107 };
108
109 #define MAX_STREAM_NAME 0x1f
110
111 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
112 MSICOLUMNINFO **pcols, UINT *pcount );
113 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo,
114 DWORD count );
115 static UINT get_tablecolumns( MSIDATABASE *db,
116 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
117 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count );
118
119 static inline UINT bytes_per_column( MSIDATABASE *db, const MSICOLUMNINFO *col, UINT bytes_per_strref )
120 {
121 if( MSITYPE_IS_BINARY(col->type) )
122 return 2;
123
124 if( col->type & MSITYPE_STRING )
125 return bytes_per_strref;
126
127 if( (col->type & 0xff) <= 2)
128 return 2;
129
130 if( (col->type & 0xff) != 4 )
131 ERR("Invalid column size!\n");
132
133 return 4;
134 }
135
136 static int utf2mime(int x)
137 {
138 if( (x>='0') && (x<='9') )
139 return x-'0';
140 if( (x>='A') && (x<='Z') )
141 return x-'A'+10;
142 if( (x>='a') && (x<='z') )
143 return x-'a'+10+26;
144 if( x=='.' )
145 return 10+26+26;
146 if( x=='_' )
147 return 10+26+26+1;
148 return -1;
149 }
150
151 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
152 {
153 DWORD count = MAX_STREAM_NAME;
154 DWORD ch, next;
155 LPWSTR out, p;
156
157 if( !bTable )
158 count = lstrlenW( in )+2;
159 out = msi_alloc( count*sizeof(WCHAR) );
160 p = out;
161
162 if( bTable )
163 {
164 *p++ = 0x4840;
165 count --;
166 }
167 while( count -- )
168 {
169 ch = *in++;
170 if( !ch )
171 {
172 *p = ch;
173 return out;
174 }
175 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
176 {
177 ch = utf2mime(ch) + 0x4800;
178 next = *in;
179 if( next && (next<0x80) )
180 {
181 next = utf2mime(next);
182 if( next != -1 )
183 {
184 next += 0x3ffffc0;
185 ch += (next<<6);
186 in++;
187 }
188 }
189 }
190 *p++ = ch;
191 }
192 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
193 msi_free( out );
194 return NULL;
195 }
196
197 static int mime2utf(int x)
198 {
199 if( x<10 )
200 return x + '0';
201 if( x<(10+26))
202 return x - 10 + 'A';
203 if( x<(10+26+26))
204 return x - 10 - 26 + 'a';
205 if( x == (10+26+26) )
206 return '.';
207 return '_';
208 }
209
210 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
211 {
212 WCHAR ch;
213 DWORD count = 0;
214
215 while ( (ch = *in++) )
216 {
217 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
218 {
219 if( ch >= 0x4800 )
220 ch = mime2utf(ch-0x4800);
221 else
222 {
223 ch -= 0x3800;
224 *out++ = mime2utf(ch&0x3f);
225 count++;
226 ch = mime2utf((ch>>6)&0x3f);
227 }
228 }
229 *out++ = ch;
230 count++;
231 }
232 *out = 0;
233 return count;
234 }
235
236 void enum_stream_names( IStorage *stg )
237 {
238 IEnumSTATSTG *stgenum = NULL;
239 HRESULT r;
240 STATSTG stat;
241 ULONG n, count;
242 WCHAR name[0x40];
243
244 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
245 if( FAILED( r ) )
246 return;
247
248 n = 0;
249 while( 1 )
250 {
251 count = 0;
252 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
253 if( FAILED( r ) || !count )
254 break;
255 decode_streamname( stat.pwcsName, name );
256 TRACE("stream %2d -> %s %s\n", n,
257 debugstr_w(stat.pwcsName), debugstr_w(name) );
258 CoTaskMemFree( stat.pwcsName );
259 n++;
260 }
261
262 IEnumSTATSTG_Release( stgenum );
263 }
264
265 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
266 BYTE **pdata, UINT *psz )
267 {
268 HRESULT r;
269 UINT ret = ERROR_FUNCTION_FAILED;
270 VOID *data;
271 ULONG sz, count;
272 IStream *stm = NULL;
273 STATSTG stat;
274 LPWSTR encname;
275
276 encname = encode_streamname(table, stname);
277
278 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
279
280 r = IStorage_OpenStream(stg, encname, NULL,
281 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
282 msi_free( encname );
283 if( FAILED( r ) )
284 {
285 WARN("open stream failed r = %08x - empty table?\n", r);
286 return ret;
287 }
288
289 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
290 if( FAILED( r ) )
291 {
292 WARN("open stream failed r = %08x!\n", r);
293 goto end;
294 }
295
296 if( stat.cbSize.QuadPart >> 32 )
297 {
298 WARN("Too big!\n");
299 goto end;
300 }
301
302 sz = stat.cbSize.QuadPart;
303 data = msi_alloc( sz );
304 if( !data )
305 {
306 WARN("couldn't allocate memory r=%08x!\n", r);
307 ret = ERROR_NOT_ENOUGH_MEMORY;
308 goto end;
309 }
310
311 r = IStream_Read(stm, data, sz, &count );
312 if( FAILED( r ) || ( count != sz ) )
313 {
314 msi_free( data );
315 WARN("read stream failed r = %08x!\n", r);
316 goto end;
317 }
318
319 *pdata = data;
320 *psz = sz;
321 ret = ERROR_SUCCESS;
322
323 end:
324 IStream_Release( stm );
325
326 return ret;
327 }
328
329 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
330 LPCVOID data, UINT sz, BOOL bTable )
331 {
332 HRESULT r;
333 UINT ret = ERROR_FUNCTION_FAILED;
334 ULONG count;
335 IStream *stm = NULL;
336 ULARGE_INTEGER size;
337 LARGE_INTEGER pos;
338 LPWSTR encname;
339
340 encname = encode_streamname(bTable, stname );
341 r = IStorage_OpenStream( stg, encname, NULL,
342 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
343 if( FAILED(r) )
344 {
345 r = IStorage_CreateStream( stg, encname,
346 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
347 }
348 msi_free( encname );
349 if( FAILED( r ) )
350 {
351 WARN("open stream failed r = %08x\n", r);
352 return ret;
353 }
354
355 size.QuadPart = sz;
356 r = IStream_SetSize( stm, size );
357 if( FAILED( r ) )
358 {
359 WARN("Failed to SetSize\n");
360 goto end;
361 }
362
363 pos.QuadPart = 0;
364 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
365 if( FAILED( r ) )
366 {
367 WARN("Failed to Seek\n");
368 goto end;
369 }
370
371 if (sz)
372 {
373 r = IStream_Write(stm, data, sz, &count );
374 if( FAILED( r ) || ( count != sz ) )
375 {
376 WARN("Failed to Write\n");
377 goto end;
378 }
379 }
380
381 ret = ERROR_SUCCESS;
382
383 end:
384 IStream_Release( stm );
385
386 return ret;
387 }
388
389 static void free_table( MSITABLE *table )
390 {
391 UINT i;
392 for( i=0; i<table->row_count; i++ )
393 msi_free( table->data[i] );
394 msi_free( table->data );
395 msi_free( table->data_persistent );
396 msi_free_colinfo( table->colinfo, table->col_count );
397 msi_free( table->colinfo );
398 msi_free( table );
399 }
400
401 static UINT msi_table_get_row_size( MSIDATABASE *db, const MSICOLUMNINFO *cols, UINT count, UINT bytes_per_strref )
402 {
403 const MSICOLUMNINFO *last_col;
404
405 if (!count)
406 return 0;
407
408 if (bytes_per_strref != LONG_STR_BYTES)
409 {
410 UINT i, size = 0;
411 for (i = 0; i < count; i++) size += bytes_per_column( db, &cols[i], bytes_per_strref );
412 return size;
413 }
414 last_col = &cols[count - 1];
415 return last_col->offset + bytes_per_column( db, last_col, bytes_per_strref );
416 }
417
418 /* add this table to the list of cached tables in the database */
419 static UINT read_table_from_storage( MSIDATABASE *db, MSITABLE *t, IStorage *stg )
420 {
421 BYTE *rawdata = NULL;
422 UINT rawsize = 0, i, j, row_size, row_size_mem;
423
424 TRACE("%s\n",debugstr_w(t->name));
425
426 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, db->bytes_per_strref );
427 row_size_mem = msi_table_get_row_size( db, t->colinfo, t->col_count, LONG_STR_BYTES );
428
429 /* if we can't read the table, just assume that it's empty */
430 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
431 if( !rawdata )
432 return ERROR_SUCCESS;
433
434 TRACE("Read %d bytes\n", rawsize );
435
436 if( rawsize % row_size )
437 {
438 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
439 goto err;
440 }
441
442 t->row_count = rawsize / row_size;
443 t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
444 if( !t->data )
445 goto err;
446 t->data_persistent = msi_alloc_zero( t->row_count * sizeof(BOOL));
447 if ( !t->data_persistent )
448 goto err;
449
450 /* transpose all the data */
451 TRACE("Transposing data from %d rows\n", t->row_count );
452 for (i = 0; i < t->row_count; i++)
453 {
454 UINT ofs = 0, ofs_mem = 0;
455
456 t->data[i] = msi_alloc( row_size_mem );
457 if( !t->data[i] )
458 goto err;
459 t->data_persistent[i] = TRUE;
460
461 for (j = 0; j < t->col_count; j++)
462 {
463 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
464 UINT n = bytes_per_column( db, &t->colinfo[j], db->bytes_per_strref );
465 UINT k;
466
467 if ( n != 2 && n != 3 && n != 4 )
468 {
469 ERR("oops - unknown column width %d\n", n);
470 goto err;
471 }
472 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
473 {
474 for (k = 0; k < m; k++)
475 {
476 if (k < n)
477 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
478 else
479 t->data[i][ofs_mem + k] = 0;
480 }
481 }
482 else
483 {
484 for (k = 0; k < n; k++)
485 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
486 }
487 ofs_mem += m;
488 ofs += n;
489 }
490 }
491
492 msi_free( rawdata );
493 return ERROR_SUCCESS;
494 err:
495 msi_free( rawdata );
496 return ERROR_FUNCTION_FAILED;
497 }
498
499 void free_cached_tables( MSIDATABASE *db )
500 {
501 while( !list_empty( &db->tables ) )
502 {
503 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
504
505 list_remove( &t->entry );
506 free_table( t );
507 }
508 }
509
510 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
511 {
512 MSITABLE *t;
513
514 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
515 if( !lstrcmpW( name, t->name ) )
516 return t;
517
518 return NULL;
519 }
520
521 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
522 {
523 UINT r, column_count = 0;
524 MSICOLUMNINFO *columns;
525
526 /* get the number of columns in this table */
527 column_count = 0;
528 r = get_tablecolumns( db, name, NULL, &column_count );
529 if( r != ERROR_SUCCESS )
530 return r;
531
532 *pcount = column_count;
533
534 /* if there's no columns, there's no table */
535 if( column_count == 0 )
536 return ERROR_INVALID_PARAMETER;
537
538 TRACE("Table %s found\n", debugstr_w(name) );
539
540 columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
541 if( !columns )
542 return ERROR_FUNCTION_FAILED;
543
544 r = get_tablecolumns( db, name, columns, &column_count );
545 if( r != ERROR_SUCCESS )
546 {
547 msi_free( columns );
548 return ERROR_FUNCTION_FAILED;
549 }
550
551 *pcols = columns;
552
553 return r;
554 }
555
556 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
557 MSICONDITION persistent, MSITABLE **table_ret)
558 {
559 UINT r, nField;
560 MSIVIEW *tv = NULL;
561 MSIRECORD *rec = NULL;
562 column_info *col;
563 MSITABLE *table;
564 UINT i;
565
566 /* only add tables that don't exist already */
567 if( TABLE_Exists(db, name ) )
568 {
569 WARN("table %s exists\n", debugstr_w(name));
570 return ERROR_BAD_QUERY_SYNTAX;
571 }
572
573 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
574 if( !table )
575 return ERROR_FUNCTION_FAILED;
576
577 table->ref_count = 1;
578 table->row_count = 0;
579 table->data = NULL;
580 table->data_persistent = NULL;
581 table->colinfo = NULL;
582 table->col_count = 0;
583 table->persistent = persistent;
584 lstrcpyW( table->name, name );
585
586 for( col = col_info; col; col = col->next )
587 table->col_count++;
588
589 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
590 if (!table->colinfo)
591 {
592 free_table( table );
593 return ERROR_FUNCTION_FAILED;
594 }
595
596 for( i = 0, col = col_info; col; i++, col = col->next )
597 {
598 table->colinfo[ i ].tablename = strdupW( col->table );
599 table->colinfo[ i ].number = i + 1;
600 table->colinfo[ i ].colname = strdupW( col->column );
601 table->colinfo[ i ].type = col->type;
602 table->colinfo[ i ].offset = 0;
603 table->colinfo[ i ].ref_count = 0;
604 table->colinfo[ i ].hash_table = NULL;
605 table->colinfo[ i ].temporary = col->temporary;
606 }
607 table_calc_column_offsets( db, table->colinfo, table->col_count);
608
609 r = TABLE_CreateView( db, szTables, &tv );
610 TRACE("CreateView returned %x\n", r);
611 if( r )
612 {
613 free_table( table );
614 return r;
615 }
616
617 r = tv->ops->execute( tv, 0 );
618 TRACE("tv execute returned %x\n", r);
619 if( r )
620 goto err;
621
622 rec = MSI_CreateRecord( 1 );
623 if( !rec )
624 goto err;
625
626 r = MSI_RecordSetStringW( rec, 1, name );
627 if( r )
628 goto err;
629
630 r = tv->ops->insert_row( tv, rec, -1, persistent == MSICONDITION_FALSE );
631 TRACE("insert_row returned %x\n", r);
632 if( r )
633 goto err;
634
635 tv->ops->delete( tv );
636 tv = NULL;
637
638 msiobj_release( &rec->hdr );
639 rec = NULL;
640
641 if( persistent != MSICONDITION_FALSE )
642 {
643 /* add each column to the _Columns table */
644 r = TABLE_CreateView( db, szColumns, &tv );
645 if( r )
646 return r;
647
648 r = tv->ops->execute( tv, 0 );
649 TRACE("tv execute returned %x\n", r);
650 if( r )
651 goto err;
652
653 rec = MSI_CreateRecord( 4 );
654 if( !rec )
655 goto err;
656
657 r = MSI_RecordSetStringW( rec, 1, name );
658 if( r )
659 goto err;
660
661 /*
662 * need to set the table, column number, col name and type
663 * for each column we enter in the table
664 */
665 nField = 1;
666 for( col = col_info; col; col = col->next )
667 {
668 r = MSI_RecordSetInteger( rec, 2, nField );
669 if( r )
670 goto err;
671
672 r = MSI_RecordSetStringW( rec, 3, col->column );
673 if( r )
674 goto err;
675
676 r = MSI_RecordSetInteger( rec, 4, col->type );
677 if( r )
678 goto err;
679
680 r = tv->ops->insert_row( tv, rec, -1, FALSE );
681 if( r )
682 goto err;
683
684 nField++;
685 }
686 if( !col )
687 r = ERROR_SUCCESS;
688 }
689
690 err:
691 if (rec)
692 msiobj_release( &rec->hdr );
693 /* FIXME: remove values from the string table on error */
694 if( tv )
695 tv->ops->delete( tv );
696
697 if (r == ERROR_SUCCESS)
698 {
699 list_add_head( &db->tables, &table->entry );
700 *table_ret = table;
701 }
702 else
703 free_table( table );
704
705 return r;
706 }
707
708 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
709 {
710 MSITABLE *table;
711 UINT r;
712
713 /* first, see if the table is cached */
714 table = find_cached_table( db, name );
715 if( table )
716 {
717 *table_ret = table;
718 return ERROR_SUCCESS;
719 }
720
721 /* nonexistent tables should be interpreted as empty tables */
722 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
723 if( !table )
724 return ERROR_FUNCTION_FAILED;
725
726 table->row_count = 0;
727 table->data = NULL;
728 table->data_persistent = NULL;
729 table->colinfo = NULL;
730 table->col_count = 0;
731 table->persistent = MSICONDITION_TRUE;
732 lstrcpyW( table->name, name );
733
734 if ( !lstrcmpW(name, szTables) || !lstrcmpW(name, szColumns) )
735 table->persistent = MSICONDITION_NONE;
736
737 r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
738 if (r != ERROR_SUCCESS)
739 {
740 free_table ( table );
741 return r;
742 }
743
744 r = read_table_from_storage( db, table, db->storage );
745 if( r != ERROR_SUCCESS )
746 {
747 free_table( table );
748 return r;
749 }
750
751 list_add_head( &db->tables, &table->entry );
752 *table_ret = table;
753 return ERROR_SUCCESS;
754 }
755
756 static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
757 {
758 UINT ret = 0, i;
759
760 for (i = 0; i < bytes; i++)
761 ret += data[row][col + i] << i * 8;
762
763 return ret;
764 }
765
766 static UINT save_table( MSIDATABASE *db, const MSITABLE *t, UINT bytes_per_strref )
767 {
768 BYTE *rawdata = NULL;
769 UINT rawsize, r, i, j, row_size, row_count;
770
771 /* Nothing to do for non-persistent tables */
772 if( t->persistent == MSICONDITION_FALSE )
773 return ERROR_SUCCESS;
774
775 TRACE("Saving %s\n", debugstr_w( t->name ) );
776
777 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, bytes_per_strref );
778 row_count = t->row_count;
779 for (i = 0; i < t->row_count; i++)
780 {
781 if (!t->data_persistent[i])
782 {
783 row_count = 1; /* yes, this is bizarre */
784 break;
785 }
786 }
787 rawsize = row_count * row_size;
788 rawdata = msi_alloc_zero( rawsize );
789 if( !rawdata )
790 {
791 r = ERROR_NOT_ENOUGH_MEMORY;
792 goto err;
793 }
794
795 rawsize = 0;
796 for (i = 0; i < t->row_count; i++)
797 {
798 UINT ofs = 0, ofs_mem = 0;
799
800 if (!t->data_persistent[i]) break;
801
802 for (j = 0; j < t->col_count; j++)
803 {
804 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
805 UINT n = bytes_per_column( db, &t->colinfo[j], bytes_per_strref );
806 UINT k;
807
808 if (n != 2 && n != 3 && n != 4)
809 {
810 ERR("oops - unknown column width %d\n", n);
811 goto err;
812 }
813 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
814 {
815 UINT id = read_table_int( t->data, i, ofs_mem, LONG_STR_BYTES );
816 if (id > 1 << bytes_per_strref * 8)
817 {
818 ERR("string id %u out of range\n", id);
819 r = ERROR_FUNCTION_FAILED;
820 goto err;
821 }
822 }
823 for (k = 0; k < n; k++)
824 {
825 rawdata[ofs * row_count + i * n + k] = t->data[i][ofs_mem + k];
826 }
827 ofs_mem += m;
828 ofs += n;
829 }
830 rawsize += row_size;
831 }
832
833 TRACE("writing %d bytes\n", rawsize);
834 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
835
836 err:
837 msi_free( rawdata );
838 return r;
839 }
840
841 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo, DWORD count )
842 {
843 DWORD i;
844
845 for( i=0; colinfo && (i<count); i++ )
846 {
847 assert( (i+1) == colinfo[ i ].number );
848 if (i)
849 colinfo[i].offset = colinfo[ i - 1 ].offset
850 + bytes_per_column( db, &colinfo[ i - 1 ], LONG_STR_BYTES );
851 else
852 colinfo[i].offset = 0;
853 TRACE("column %d is [%s] with type %08x ofs %d\n",
854 colinfo[i].number, debugstr_w(colinfo[i].colname),
855 colinfo[i].type, colinfo[i].offset);
856 }
857 }
858
859 static UINT get_defaulttablecolumns( MSIDATABASE *db, LPCWSTR name,
860 MSICOLUMNINFO *colinfo, UINT *sz)
861 {
862 const MSICOLUMNINFO *p;
863 DWORD i, n;
864
865 TRACE("%s\n", debugstr_w(name));
866
867 if (!lstrcmpW( name, szTables ))
868 {
869 p = _Tables_cols;
870 n = 1;
871 }
872 else if (!lstrcmpW( name, szColumns ))
873 {
874 p = _Columns_cols;
875 n = 4;
876 }
877 else
878 return ERROR_FUNCTION_FAILED;
879
880 /* duplicate the string data so we can free it in msi_free_colinfo */
881 for (i=0; i<n; i++)
882 {
883 if (colinfo && (i < *sz) )
884 {
885 colinfo[i] = p[i];
886 colinfo[i].tablename = strdupW( p[i].tablename );
887 colinfo[i].colname = strdupW( p[i].colname );
888 }
889 if( colinfo && (i >= *sz) )
890 break;
891 }
892 table_calc_column_offsets( db, colinfo, n );
893 *sz = n;
894 return ERROR_SUCCESS;
895 }
896
897 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
898 {
899 UINT i;
900
901 for( i=0; i<count; i++ )
902 {
903 msi_free( colinfo[i].tablename );
904 msi_free( colinfo[i].colname );
905 msi_free( colinfo[i].hash_table );
906 }
907 }
908
909 static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
910 {
911 return strdupW(msi_string_lookup_id( db->strings, stringid ));
912 }
913
914 static UINT get_tablecolumns( MSIDATABASE *db,
915 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
916 {
917 UINT r, i, n=0, table_id, count, maxcount = *sz;
918 MSITABLE *table = NULL;
919
920 TRACE("%s\n", debugstr_w(szTableName));
921
922 /* first check if there is a default table with that name */
923 r = get_defaulttablecolumns( db, szTableName, colinfo, sz );
924 if( ( r == ERROR_SUCCESS ) && *sz )
925 return r;
926
927 r = get_table( db, szColumns, &table );
928 if( r != ERROR_SUCCESS )
929 {
930 ERR("couldn't load _Columns table\n");
931 return ERROR_FUNCTION_FAILED;
932 }
933
934 /* convert table and column names to IDs from the string table */
935 r = msi_string2idW( db->strings, szTableName, &table_id );
936 if( r != ERROR_SUCCESS )
937 {
938 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
939 return r;
940 }
941
942 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
943
944 /* Note: _Columns table doesn't have non-persistent data */
945
946 /* if maxcount is non-zero, assume it's exactly right for this table */
947 memset( colinfo, 0, maxcount*sizeof(*colinfo) );
948 count = table->row_count;
949 for( i=0; i<count; i++ )
950 {
951 if( read_table_int(table->data, i, 0, LONG_STR_BYTES) != table_id )
952 continue;
953 if( colinfo )
954 {
955 UINT id = read_table_int(table->data, i, table->colinfo[2].offset, LONG_STR_BYTES);
956 UINT col = read_table_int(table->data, i, table->colinfo[1].offset, sizeof(USHORT)) - (1<<15);
957
958 /* check the column number is in range */
959 if (col<1 || col>maxcount)
960 {
961 ERR("column %d out of range\n", col);
962 continue;
963 }
964
965 /* check if this column was already set */
966 if (colinfo[ col - 1 ].number)
967 {
968 ERR("duplicate column %d\n", col);
969 continue;
970 }
971
972 colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
973 colinfo[ col - 1 ].number = col;
974 colinfo[ col - 1 ].colname = msi_makestring( db, id );
975 colinfo[ col - 1 ].type = read_table_int(table->data, i,
976 table->colinfo[3].offset,
977 sizeof(USHORT)) - (1<<15);
978 colinfo[ col - 1 ].offset = 0;
979 colinfo[ col - 1 ].ref_count = 0;
980 colinfo[ col - 1 ].hash_table = NULL;
981 }
982 n++;
983 }
984
985 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
986
987 if (colinfo && n != maxcount)
988 {
989 ERR("missing column in table %s\n", debugstr_w(szTableName));
990 msi_free_colinfo(colinfo, maxcount );
991 return ERROR_FUNCTION_FAILED;
992 }
993
994 table_calc_column_offsets( db, colinfo, n );
995 *sz = n;
996
997 return ERROR_SUCCESS;
998 }
999
1000 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
1001 {
1002 MSITABLE *table;
1003 LPWSTR tablename;
1004 UINT size, offset, old_count;
1005 UINT n;
1006
1007 /* We may free name in msi_free_colinfo. */
1008 tablename = strdupW( name );
1009
1010 table = find_cached_table( db, tablename );
1011 old_count = table->col_count;
1012 msi_free_colinfo( table->colinfo, table->col_count );
1013 msi_free( table->colinfo );
1014 table->colinfo = NULL;
1015
1016 table_get_column_info( db, tablename, &table->colinfo, &table->col_count );
1017 if (!table->col_count)
1018 goto done;
1019
1020 size = msi_table_get_row_size( db, table->colinfo, table->col_count, LONG_STR_BYTES );
1021 offset = table->colinfo[table->col_count - 1].offset;
1022
1023 for ( n = 0; n < table->row_count; n++ )
1024 {
1025 table->data[n] = msi_realloc( table->data[n], size );
1026 if (old_count < table->col_count)
1027 memset( &table->data[n][offset], 0, size - offset );
1028 }
1029
1030 done:
1031 msi_free(tablename);
1032 }
1033
1034 /* try to find the table name in the _Tables table */
1035 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1036 {
1037 UINT r, table_id, i;
1038 MSITABLE *table;
1039
1040 static const WCHAR szStreams[] = {'_','S','t','r','e','a','m','s',0};
1041 static const WCHAR szStorages[] = {'_','S','t','o','r','a','g','e','s',0};
1042
1043 if( !lstrcmpW( name, szTables ) || !lstrcmpW( name, szColumns ) ||
1044 !lstrcmpW( name, szStreams ) || !lstrcmpW( name, szStorages ) )
1045 return TRUE;
1046
1047 r = msi_string2idW( db->strings, name, &table_id );
1048 if( r != ERROR_SUCCESS )
1049 {
1050 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1051 return FALSE;
1052 }
1053
1054 r = get_table( db, szTables, &table );
1055 if( r != ERROR_SUCCESS )
1056 {
1057 ERR("table %s not available\n", debugstr_w(szTables));
1058 return FALSE;
1059 }
1060
1061 for( i = 0; i < table->row_count; i++ )
1062 {
1063 if( read_table_int( table->data, i, 0, LONG_STR_BYTES ) == table_id )
1064 return TRUE;
1065 }
1066
1067 return FALSE;
1068 }
1069
1070 /* below is the query interface to a table */
1071
1072 typedef struct tagMSITABLEVIEW
1073 {
1074 MSIVIEW view;
1075 MSIDATABASE *db;
1076 MSITABLE *table;
1077 MSICOLUMNINFO *columns;
1078 MSIORDERINFO *order;
1079 UINT num_cols;
1080 UINT row_size;
1081 WCHAR name[1];
1082 } MSITABLEVIEW;
1083
1084 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1085 {
1086 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1087 UINT offset, n;
1088
1089 if( !tv->table )
1090 return ERROR_INVALID_PARAMETER;
1091
1092 if( (col==0) || (col>tv->num_cols) )
1093 return ERROR_INVALID_PARAMETER;
1094
1095 /* how many rows are there ? */
1096 if( row >= tv->table->row_count )
1097 return ERROR_NO_MORE_ITEMS;
1098
1099 if( tv->columns[col-1].offset >= tv->row_size )
1100 {
1101 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1102 ERR("%p %p\n", tv, tv->columns );
1103 return ERROR_FUNCTION_FAILED;
1104 }
1105
1106 if (tv->order)
1107 row = tv->order->reorder[row];
1108
1109 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1110 if (n != 2 && n != 3 && n != 4)
1111 {
1112 ERR("oops! what is %d bytes per column?\n", n );
1113 return ERROR_FUNCTION_FAILED;
1114 }
1115
1116 offset = tv->columns[col-1].offset;
1117 *val = read_table_int(tv->table->data, row, offset, n);
1118
1119 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1120
1121 return ERROR_SUCCESS;
1122 }
1123
1124 static UINT msi_stream_name( const MSITABLEVIEW *tv, UINT row, LPWSTR *pstname )
1125 {
1126 LPWSTR p, stname = NULL;
1127 UINT i, r, type, ival;
1128 DWORD len;
1129 LPCWSTR sval;
1130 MSIVIEW *view = (MSIVIEW *) tv;
1131
1132 TRACE("%p %d\n", tv, row);
1133
1134 len = lstrlenW( tv->name ) + 1;
1135 stname = msi_alloc( len*sizeof(WCHAR) );
1136 if ( !stname )
1137 {
1138 r = ERROR_OUTOFMEMORY;
1139 goto err;
1140 }
1141
1142 lstrcpyW( stname, tv->name );
1143
1144 for ( i = 0; i < tv->num_cols; i++ )
1145 {
1146 type = tv->columns[i].type;
1147 if ( type & MSITYPE_KEY )
1148 {
1149 r = TABLE_fetch_int( view, row, i+1, &ival );
1150 if ( r != ERROR_SUCCESS )
1151 goto err;
1152
1153 if ( tv->columns[i].type & MSITYPE_STRING )
1154 {
1155 sval = msi_string_lookup_id( tv->db->strings, ival );
1156 if ( !sval )
1157 {
1158 r = ERROR_INVALID_PARAMETER;
1159 goto err;
1160 }
1161 }
1162 else
1163 {
1164 static const WCHAR fmt[] = { '%','d',0 };
1165 WCHAR number[0x20];
1166 UINT n = bytes_per_column( tv->db, &tv->columns[i], LONG_STR_BYTES );
1167
1168 switch( n )
1169 {
1170 case 2:
1171 sprintfW( number, fmt, ival-0x8000 );
1172 break;
1173 case 4:
1174 sprintfW( number, fmt, ival^0x80000000 );
1175 break;
1176 default:
1177 ERR( "oops - unknown column width %d\n", n );
1178 r = ERROR_FUNCTION_FAILED;
1179 goto err;
1180 }
1181 sval = number;
1182 }
1183
1184 len += lstrlenW( szDot ) + lstrlenW( sval );
1185 p = msi_realloc ( stname, len*sizeof(WCHAR) );
1186 if ( !p )
1187 {
1188 r = ERROR_OUTOFMEMORY;
1189 goto err;
1190 }
1191 stname = p;
1192
1193 lstrcatW( stname, szDot );
1194 lstrcatW( stname, sval );
1195 }
1196 else
1197 continue;
1198 }
1199
1200 *pstname = stname;
1201 return ERROR_SUCCESS;
1202
1203 err:
1204 msi_free( stname );
1205 *pstname = NULL;
1206 return r;
1207 }
1208
1209 /*
1210 * We need a special case for streams, as we need to reference column with
1211 * the name of the stream in the same table, and the table name
1212 * which may not be available at higher levels of the query
1213 */
1214 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1215 {
1216 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1217 UINT r;
1218 LPWSTR encname, full_name = NULL;
1219
1220 if( !view->ops->fetch_int )
1221 return ERROR_INVALID_PARAMETER;
1222
1223 r = msi_stream_name( tv, row, &full_name );
1224 if ( r != ERROR_SUCCESS )
1225 {
1226 ERR("fetching stream, error = %d\n", r);
1227 return r;
1228 }
1229
1230 encname = encode_streamname( FALSE, full_name );
1231 r = db_get_raw_stream( tv->db, encname, stm );
1232 if( r )
1233 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1234
1235 msi_free( full_name );
1236 msi_free( encname );
1237 return r;
1238 }
1239
1240 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1241 {
1242 UINT offset, n, i;
1243
1244 if( !tv->table )
1245 return ERROR_INVALID_PARAMETER;
1246
1247 if( (col==0) || (col>tv->num_cols) )
1248 return ERROR_INVALID_PARAMETER;
1249
1250 if( row >= tv->table->row_count )
1251 return ERROR_INVALID_PARAMETER;
1252
1253 if( tv->columns[col-1].offset >= tv->row_size )
1254 {
1255 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1256 ERR("%p %p\n", tv, tv->columns );
1257 return ERROR_FUNCTION_FAILED;
1258 }
1259
1260 msi_free( tv->columns[col-1].hash_table );
1261 tv->columns[col-1].hash_table = NULL;
1262
1263 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1264 if ( n != 2 && n != 3 && n != 4 )
1265 {
1266 ERR("oops! what is %d bytes per column?\n", n );
1267 return ERROR_FUNCTION_FAILED;
1268 }
1269
1270 offset = tv->columns[col-1].offset;
1271 for ( i = 0; i < n; i++ )
1272 tv->table->data[row][offset + i] = (val >> i * 8) & 0xff;
1273
1274 return ERROR_SUCCESS;
1275 }
1276
1277 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1278 {
1279 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1280
1281 if (!tv->table)
1282 return ERROR_INVALID_PARAMETER;
1283
1284 if (tv->order)
1285 row = tv->order->reorder[row];
1286
1287 return msi_view_get_row(tv->db, view, row, rec);
1288 }
1289
1290 static UINT msi_addstreamW( MSIDATABASE *db, LPCWSTR name, IStream *data )
1291 {
1292 UINT r;
1293 MSIQUERY *query = NULL;
1294 MSIRECORD *rec = NULL;
1295
1296 static const WCHAR insert[] = {
1297 'I','N','S','E','R','T',' ','I','N','T','O',' ',
1298 '`','_','S','t','r','e','a','m','s','`',' ',
1299 '(','`','N','a','m','e','`',',',
1300 '`','D','a','t','a','`',')',' ',
1301 'V','A','L','U','E','S',' ','(','?',',','?',')',0};
1302
1303 TRACE("%p %s %p\n", db, debugstr_w(name), data);
1304
1305 rec = MSI_CreateRecord( 2 );
1306 if ( !rec )
1307 return ERROR_OUTOFMEMORY;
1308
1309 r = MSI_RecordSetStringW( rec, 1, name );
1310 if ( r != ERROR_SUCCESS )
1311 goto err;
1312
1313 r = MSI_RecordSetIStream( rec, 2, data );
1314 if ( r != ERROR_SUCCESS )
1315 goto err;
1316
1317 r = MSI_DatabaseOpenViewW( db, insert, &query );
1318 if ( r != ERROR_SUCCESS )
1319 goto err;
1320
1321 r = MSI_ViewExecute( query, rec );
1322
1323 err:
1324 msiobj_release( &query->hdr );
1325 msiobj_release( &rec->hdr );
1326
1327 return r;
1328 }
1329
1330 static UINT get_table_value_from_record( MSITABLEVIEW *tv, MSIRECORD *rec, UINT iField, UINT *pvalue )
1331 {
1332 MSICOLUMNINFO columninfo;
1333 UINT r;
1334
1335 if ( (iField <= 0) ||
1336 (iField > tv->num_cols) ||
1337 MSI_RecordIsNull( rec, iField ) )
1338 return ERROR_FUNCTION_FAILED;
1339
1340 columninfo = tv->columns[ iField - 1 ];
1341
1342 if ( MSITYPE_IS_BINARY(columninfo.type) )
1343 {
1344 *pvalue = 1; /* refers to the first key column */
1345 }
1346 else if ( columninfo.type & MSITYPE_STRING )
1347 {
1348 LPCWSTR sval = MSI_RecordGetString( rec, iField );
1349
1350 r = msi_string2idW(tv->db->strings, sval, pvalue);
1351 if (r != ERROR_SUCCESS)
1352 return ERROR_NOT_FOUND;
1353 }
1354 else if ( bytes_per_column( tv->db, &columninfo, LONG_STR_BYTES ) == 2 )
1355 {
1356 *pvalue = 0x8000 + MSI_RecordGetInteger( rec, iField );
1357 if ( *pvalue & 0xffff0000 )
1358 {
1359 ERR("field %u value %d out of range\n", iField, *pvalue - 0x8000);
1360 return ERROR_FUNCTION_FAILED;
1361 }
1362 }
1363 else
1364 {
1365 INT ival = MSI_RecordGetInteger( rec, iField );
1366 *pvalue = ival ^ 0x80000000;
1367 }
1368
1369 return ERROR_SUCCESS;
1370 }
1371
1372 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1373 {
1374 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1375 UINT i, val, r = ERROR_SUCCESS;
1376
1377 if ( !tv->table )
1378 return ERROR_INVALID_PARAMETER;
1379
1380 /* test if any of the mask bits are invalid */
1381 if ( mask >= (1<<tv->num_cols) )
1382 return ERROR_INVALID_PARAMETER;
1383
1384 for ( i = 0; i < tv->num_cols; i++ )
1385 {
1386 BOOL persistent;
1387
1388 /* only update the fields specified in the mask */
1389 if ( !(mask&(1<<i)) )
1390 continue;
1391
1392 persistent = (tv->table->persistent != MSICONDITION_FALSE) &&
1393 (tv->table->data_persistent[row]);
1394 /* FIXME: should we allow updating keys? */
1395
1396 val = 0;
1397 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1398 {
1399 r = get_table_value_from_record (tv, rec, i + 1, &val);
1400 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1401 {
1402 IStream *stm;
1403 LPWSTR stname;
1404
1405 if ( r != ERROR_SUCCESS )
1406 return ERROR_FUNCTION_FAILED;
1407
1408 r = MSI_RecordGetIStream( rec, i + 1, &stm );
1409 if ( r != ERROR_SUCCESS )
1410 return r;
1411
1412 r = msi_stream_name( tv, row, &stname );
1413 if ( r != ERROR_SUCCESS )
1414 {
1415 IStream_Release( stm );
1416 return r;
1417 }
1418
1419 r = msi_addstreamW( tv->db, stname, stm );
1420 IStream_Release( stm );
1421 msi_free ( stname );
1422
1423 if ( r != ERROR_SUCCESS )
1424 return r;
1425 }
1426 else if ( tv->columns[i].type & MSITYPE_STRING )
1427 {
1428 UINT x;
1429
1430 if ( r != ERROR_SUCCESS )
1431 {
1432 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1433 val = msi_addstringW( tv->db->strings, sval, -1, 1,
1434 persistent ? StringPersistent : StringNonPersistent );
1435
1436 }
1437 else
1438 {
1439 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1440 if (val == x)
1441 continue;
1442 }
1443 }
1444 else
1445 {
1446 if ( r != ERROR_SUCCESS )
1447 return ERROR_FUNCTION_FAILED;
1448 }
1449 }
1450
1451 r = TABLE_set_int( tv, row, i+1, val );
1452 if ( r != ERROR_SUCCESS )
1453 break;
1454 }
1455 return r;
1456 }
1457
1458 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1459 {
1460 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1461 BYTE **p, *row;
1462 BOOL *b;
1463 UINT sz;
1464 BYTE ***data_ptr;
1465 BOOL **data_persist_ptr;
1466 UINT *row_count;
1467
1468 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1469
1470 if( !tv->table )
1471 return ERROR_INVALID_PARAMETER;
1472
1473 row = msi_alloc_zero( tv->row_size );
1474 if( !row )
1475 return ERROR_NOT_ENOUGH_MEMORY;
1476
1477 row_count = &tv->table->row_count;
1478 data_ptr = &tv->table->data;
1479 data_persist_ptr = &tv->table->data_persistent;
1480 if (*num == -1)
1481 *num = tv->table->row_count;
1482
1483 sz = (*row_count + 1) * sizeof (BYTE*);
1484 if( *data_ptr )
1485 p = msi_realloc( *data_ptr, sz );
1486 else
1487 p = msi_alloc( sz );
1488 if( !p )
1489 {
1490 msi_free( row );
1491 return ERROR_NOT_ENOUGH_MEMORY;
1492 }
1493
1494 sz = (*row_count + 1) * sizeof (BOOL);
1495 if( *data_persist_ptr )
1496 b = msi_realloc( *data_persist_ptr, sz );
1497 else
1498 b = msi_alloc( sz );
1499 if( !b )
1500 {
1501 msi_free( row );
1502 msi_free( p );
1503 return ERROR_NOT_ENOUGH_MEMORY;
1504 }
1505
1506 *data_ptr = p;
1507 (*data_ptr)[*row_count] = row;
1508
1509 *data_persist_ptr = b;
1510 (*data_persist_ptr)[*row_count] = !temporary;
1511
1512 (*row_count)++;
1513
1514 return ERROR_SUCCESS;
1515 }
1516
1517 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1518 {
1519 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1520
1521 TRACE("%p %p\n", tv, record);
1522
1523 TRACE("There are %d columns\n", tv->num_cols );
1524
1525 return ERROR_SUCCESS;
1526 }
1527
1528 static UINT TABLE_close( struct tagMSIVIEW *view )
1529 {
1530 TRACE("%p\n", view );
1531
1532 return ERROR_SUCCESS;
1533 }
1534
1535 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1536 {
1537 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1538
1539 TRACE("%p %p %p\n", view, rows, cols );
1540
1541 if( cols )
1542 *cols = tv->num_cols;
1543 if( rows )
1544 {
1545 if( !tv->table )
1546 return ERROR_INVALID_PARAMETER;
1547 *rows = tv->table->row_count;
1548 }
1549
1550 return ERROR_SUCCESS;
1551 }
1552
1553 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1554 UINT n, LPWSTR *name, UINT *type, BOOL *temporary,
1555 LPWSTR *table_name )
1556 {
1557 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1558
1559 TRACE("%p %d %p %p\n", tv, n, name, type );
1560
1561 if( ( n == 0 ) || ( n > tv->num_cols ) )
1562 return ERROR_INVALID_PARAMETER;
1563
1564 if( name )
1565 {
1566 *name = strdupW( tv->columns[n-1].colname );
1567 if( !*name )
1568 return ERROR_FUNCTION_FAILED;
1569 }
1570
1571 if( table_name )
1572 {
1573 *table_name = strdupW( tv->columns[n-1].tablename );
1574 if( !*table_name )
1575 return ERROR_FUNCTION_FAILED;
1576 }
1577
1578 if( type )
1579 *type = tv->columns[n-1].type;
1580
1581 if( temporary )
1582 *temporary = tv->columns[n-1].temporary;
1583
1584 return ERROR_SUCCESS;
1585 }
1586
1587 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1588
1589 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1590 {
1591 UINT r, row, i;
1592
1593 /* check there's no null values where they're not allowed */
1594 for( i = 0; i < tv->num_cols; i++ )
1595 {
1596 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1597 continue;
1598
1599 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1600 TRACE("skipping binary column\n");
1601 else if ( tv->columns[i].type & MSITYPE_STRING )
1602 {
1603 LPCWSTR str;
1604
1605 str = MSI_RecordGetString( rec, i+1 );
1606 if (str == NULL || str[0] == 0)
1607 return ERROR_INVALID_DATA;
1608 }
1609 else
1610 {
1611 UINT n;
1612
1613 n = MSI_RecordGetInteger( rec, i+1 );
1614 if (n == MSI_NULL_INTEGER)
1615 return ERROR_INVALID_DATA;
1616 }
1617 }
1618
1619 /* check there's no duplicate keys */
1620 r = msi_table_find_row( tv, rec, &row );
1621 if (r == ERROR_SUCCESS)
1622 return ERROR_FUNCTION_FAILED;
1623
1624 return ERROR_SUCCESS;
1625 }
1626
1627 static int compare_record( MSITABLEVIEW *tv, UINT row, MSIRECORD *rec )
1628 {
1629 UINT r, i, ivalue, x;
1630
1631 for (i = 0; i < tv->num_cols; i++ )
1632 {
1633 r = get_table_value_from_record( tv, rec, i + 1, &ivalue );
1634 if (r != ERROR_SUCCESS)
1635 return 1;
1636
1637 r = TABLE_fetch_int( &tv->view, row, i + 1, &x );
1638 if (r != ERROR_SUCCESS)
1639 {
1640 WARN("TABLE_fetch_int should not fail here %u\n", r);
1641 return -1;
1642 }
1643 if (ivalue > x)
1644 {
1645 return 1;
1646 }
1647 else if (ivalue == x)
1648 {
1649 if (i < tv->num_cols - 1) continue;
1650 return 0;
1651 }
1652 else
1653 return -1;
1654 }
1655 return 1;
1656 }
1657
1658 static int find_insert_index( MSITABLEVIEW *tv, MSIRECORD *rec )
1659 {
1660 int idx, c, low = 0, high = tv->table->row_count - 1;
1661
1662 TRACE("%p %p\n", tv, rec);
1663
1664 while (low <= high)
1665 {
1666 idx = (low + high) / 2;
1667 c = compare_record( tv, idx, rec );
1668
1669 if (c < 0)
1670 high = idx - 1;
1671 else if (c > 0)
1672 low = idx + 1;
1673 else
1674 {
1675 TRACE("found %u\n", idx);
1676 return idx;
1677 }
1678 }
1679 TRACE("found %u\n", high + 1);
1680 return high + 1;
1681 }
1682
1683 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary )
1684 {
1685 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1686 UINT i, r;
1687
1688 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1689
1690 /* check that the key is unique - can we find a matching row? */
1691 r = table_validate_new( tv, rec );
1692 if( r != ERROR_SUCCESS )
1693 return ERROR_FUNCTION_FAILED;
1694
1695 if (row == -1)
1696 row = find_insert_index( tv, rec );
1697
1698 r = table_create_new_row( view, &row, temporary );
1699 TRACE("insert_row returned %08x\n", r);
1700 if( r != ERROR_SUCCESS )
1701 return r;
1702
1703 /* shift the rows to make room for the new row */
1704 for (i = tv->table->row_count - 1; i > row; i--)
1705 {
1706 memmove(&(tv->table->data[i][0]),
1707 &(tv->table->data[i - 1][0]), tv->row_size);
1708 tv->table->data_persistent[i] = tv->table->data_persistent[i - 1];
1709 }
1710
1711 /* Re-set the persistence flag */
1712 tv->table->data_persistent[row] = !temporary;
1713 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1714 }
1715
1716 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1717 {
1718 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1719 UINT r, num_rows, num_cols, i;
1720
1721 TRACE("%p %d\n", tv, row);
1722
1723 if ( !tv->table )
1724 return ERROR_INVALID_PARAMETER;
1725
1726 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1727 if ( r != ERROR_SUCCESS )
1728 return r;
1729
1730 if ( row >= num_rows )
1731 return ERROR_FUNCTION_FAILED;
1732
1733 num_rows = tv->table->row_count;
1734 tv->table->row_count--;
1735
1736 /* reset the hash tables */
1737 for (i = 0; i < tv->num_cols; i++)
1738 {
1739 msi_free( tv->columns[i].hash_table );
1740 tv->columns[i].hash_table = NULL;
1741 }
1742
1743 for (i = row + 1; i < num_rows; i++)
1744 {
1745 memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
1746 tv->table->data_persistent[i - 1] = tv->table->data_persistent[i];
1747 }
1748
1749 msi_free(tv->table->data[num_rows - 1]);
1750
1751 return ERROR_SUCCESS;
1752 }
1753
1754 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1755 {
1756 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1757 UINT r, new_row;
1758
1759 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1760 * sets the fetched record apart from other records
1761 */
1762
1763 if (!tv->table)
1764 return ERROR_INVALID_PARAMETER;
1765
1766 r = msi_table_find_row(tv, rec, &new_row);
1767 if (r != ERROR_SUCCESS)
1768 {
1769 ERR("can't find row to modify\n");
1770 return ERROR_FUNCTION_FAILED;
1771 }
1772
1773 /* the row cannot be changed */
1774 if (row != new_row + 1)
1775 return ERROR_FUNCTION_FAILED;
1776
1777 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1778 }
1779
1780 static UINT msi_table_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
1781 {
1782 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1783 UINT r, row;
1784
1785 if (!tv->table)
1786 return ERROR_INVALID_PARAMETER;
1787
1788 r = msi_table_find_row(tv, rec, &row);
1789 if (r == ERROR_SUCCESS)
1790 return TABLE_set_row(view, row, rec, (1 << tv->num_cols) - 1);
1791 else
1792 return TABLE_insert_row( view, rec, -1, FALSE );
1793 }
1794
1795 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1796 {
1797 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1798 UINT row, r;
1799
1800 r = msi_table_find_row(tv, rec, &row);
1801 if (r != ERROR_SUCCESS)
1802 return r;
1803
1804 return TABLE_delete_row(view, row);
1805 }
1806
1807 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1808 {
1809 MSIRECORD *curr;
1810 UINT r, i, count;
1811
1812 r = TABLE_get_row(view, row - 1, &curr);
1813 if (r != ERROR_SUCCESS)
1814 return r;
1815
1816 /* Close the original record */
1817 MSI_CloseRecord(&rec->hdr);
1818
1819 count = MSI_RecordGetFieldCount(rec);
1820 for (i = 0; i < count; i++)
1821 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1822
1823 msiobj_release(&curr->hdr);
1824 return ERROR_SUCCESS;
1825 }
1826
1827 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1828 MSIRECORD *rec, UINT row)
1829 {
1830 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1831 UINT r;
1832
1833 TRACE("%p %d %p\n", view, eModifyMode, rec );
1834
1835 switch (eModifyMode)
1836 {
1837 case MSIMODIFY_DELETE:
1838 r = modify_delete_row( view, rec );
1839 break;
1840 case MSIMODIFY_VALIDATE_NEW:
1841 r = table_validate_new( tv, rec );
1842 break;
1843
1844 case MSIMODIFY_INSERT:
1845 r = table_validate_new( tv, rec );
1846 if (r != ERROR_SUCCESS)
1847 break;
1848 r = TABLE_insert_row( view, rec, -1, FALSE );
1849 break;
1850
1851 case MSIMODIFY_INSERT_TEMPORARY:
1852 r = table_validate_new( tv, rec );
1853 if (r != ERROR_SUCCESS)
1854 break;
1855 r = TABLE_insert_row( view, rec, -1, TRUE );
1856 break;
1857
1858 case MSIMODIFY_REFRESH:
1859 r = msi_refresh_record( view, rec, row );
1860 break;
1861
1862 case MSIMODIFY_UPDATE:
1863 r = msi_table_update( view, rec, row );
1864 break;
1865
1866 case MSIMODIFY_ASSIGN:
1867 r = msi_table_assign( view, rec );
1868 break;
1869
1870 case MSIMODIFY_REPLACE:
1871 case MSIMODIFY_MERGE:
1872 case MSIMODIFY_VALIDATE:
1873 case MSIMODIFY_VALIDATE_FIELD:
1874 case MSIMODIFY_VALIDATE_DELETE:
1875 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1876 r = ERROR_CALL_NOT_IMPLEMENTED;
1877 break;
1878
1879 default:
1880 r = ERROR_INVALID_DATA;
1881 }
1882
1883 return r;
1884 }
1885
1886 static UINT TABLE_delete( struct tagMSIVIEW *view )
1887 {
1888 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1889
1890 TRACE("%p\n", view );
1891
1892 tv->table = NULL;
1893 tv->columns = NULL;
1894
1895 if (tv->order)
1896 {
1897 msi_free( tv->order->reorder );
1898 msi_free( tv->order );
1899 tv->order = NULL;
1900 }
1901
1902 msi_free( tv );
1903
1904 return ERROR_SUCCESS;
1905 }
1906
1907 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1908 UINT val, UINT *row, MSIITERHANDLE *handle )
1909 {
1910 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1911 const MSICOLUMNHASHENTRY *entry;
1912
1913 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1914
1915 if( !tv->table )
1916 return ERROR_INVALID_PARAMETER;
1917
1918 if( (col==0) || (col > tv->num_cols) )
1919 return ERROR_INVALID_PARAMETER;
1920
1921 if( !tv->columns[col-1].hash_table )
1922 {
1923 UINT i;
1924 UINT num_rows = tv->table->row_count;
1925 MSICOLUMNHASHENTRY **hash_table;
1926 MSICOLUMNHASHENTRY *new_entry;
1927
1928 if( tv->columns[col-1].offset >= tv->row_size )
1929 {
1930 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1931 ERR("%p %p\n", tv, tv->columns );
1932 return ERROR_FUNCTION_FAILED;
1933 }
1934
1935 /* allocate contiguous memory for the table and its entries so we
1936 * don't have to do an expensive cleanup */
1937 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1938 num_rows * sizeof(MSICOLUMNHASHENTRY));
1939 if (!hash_table)
1940 return ERROR_OUTOFMEMORY;
1941
1942 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1943 tv->columns[col-1].hash_table = hash_table;
1944
1945 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1946
1947 for (i = 0; i < num_rows; i++, new_entry++)
1948 {
1949 UINT row_value;
1950
1951 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1952 continue;
1953
1954 new_entry->next = NULL;
1955 new_entry->value = row_value;
1956 new_entry->row = i;
1957 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1958 {
1959 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1960 while (prev_entry->next)
1961 prev_entry = prev_entry->next;
1962 prev_entry->next = new_entry;
1963 }
1964 else
1965 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1966 }
1967 }
1968
1969 if( !*handle )
1970 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1971 else
1972 entry = (*handle)->next;
1973
1974 while (entry && entry->value != val)
1975 entry = entry->next;
1976
1977 *handle = entry;
1978 if (!entry)
1979 return ERROR_NO_MORE_ITEMS;
1980
1981 *row = entry->row;
1982
1983 return ERROR_SUCCESS;
1984 }
1985
1986 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1987 {
1988 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1989 UINT i;
1990
1991 TRACE("%p %d\n", view, tv->table->ref_count);
1992
1993 for (i = 0; i < tv->table->col_count; i++)
1994 {
1995 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1996 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1997 }
1998
1999 return InterlockedIncrement(&tv->table->ref_count);
2000 }
2001
2002 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
2003 {
2004 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2005 MSIRECORD *rec = NULL;
2006 MSIVIEW *columns = NULL;
2007 UINT row, r;
2008
2009 rec = MSI_CreateRecord(2);
2010 if (!rec)
2011 return ERROR_OUTOFMEMORY;
2012
2013 MSI_RecordSetStringW(rec, 1, table);
2014 MSI_RecordSetInteger(rec, 2, number);
2015
2016 r = TABLE_CreateView(tv->db, szColumns, &columns);
2017 if (r != ERROR_SUCCESS)
2018 return r;
2019
2020 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
2021 if (r != ERROR_SUCCESS)
2022 goto done;
2023
2024 r = TABLE_delete_row(columns, row);
2025 if (r != ERROR_SUCCESS)
2026 goto done;
2027
2028 msi_update_table_columns(tv->db, table);
2029
2030 done:
2031 msiobj_release(&rec->hdr);
2032 columns->ops->delete(columns);
2033 return r;
2034 }
2035
2036 static UINT TABLE_release(struct tagMSIVIEW *view)
2037 {
2038 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2039 INT ref = tv->table->ref_count;
2040 UINT i, r;
2041
2042 TRACE("%p %d\n", view, ref);
2043
2044 for (i = 0; i < tv->table->col_count; i++)
2045 {
2046 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
2047 {
2048 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
2049 if (ref == 0)
2050 {
2051 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2052 tv->table->colinfo[i].number);
2053 if (r != ERROR_SUCCESS)
2054 break;
2055 }
2056 }
2057 }
2058
2059 ref = InterlockedDecrement(&tv->table->ref_count);
2060 if (ref == 0)
2061 {
2062 if (!tv->table->row_count)
2063 {
2064 list_remove(&tv->table->entry);
2065 free_table(tv->table);
2066 TABLE_delete(view);
2067 }
2068 }
2069
2070 return ref;
2071 }
2072
2073 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
2074 LPCWSTR column, UINT type, BOOL hold)
2075 {
2076 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2077 MSITABLE *msitable;
2078 MSIRECORD *rec;
2079 UINT r, i;
2080
2081 rec = MSI_CreateRecord(4);
2082 if (!rec)
2083 return ERROR_OUTOFMEMORY;
2084
2085 MSI_RecordSetStringW(rec, 1, table);
2086 MSI_RecordSetInteger(rec, 2, number);
2087 MSI_RecordSetStringW(rec, 3, column);
2088 MSI_RecordSetInteger(rec, 4, type);
2089
2090 r = TABLE_insert_row(&tv->view, rec, -1, FALSE);
2091 if (r != ERROR_SUCCESS)
2092 goto done;
2093
2094 msi_update_table_columns(tv->db, table);
2095
2096 if (!hold)
2097 goto done;
2098
2099 msitable = find_cached_table(tv->db, table);
2100 for (i = 0; i < msitable->col_count; i++)
2101 {
2102 if (!lstrcmpW(msitable->colinfo[i].colname, column))
2103 {
2104 InterlockedIncrement(&msitable->colinfo[i].ref_count);
2105 break;
2106 }
2107 }
2108
2109 done:
2110 msiobj_release(&rec->hdr);
2111 return r;
2112 }
2113
2114 static UINT order_add_column(struct tagMSIVIEW *view, MSIORDERINFO *order, LPCWSTR name)
2115 {
2116 UINT n, r, count;
2117 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2118
2119 r = TABLE_get_dimensions(view, NULL, &count);
2120 if (r != ERROR_SUCCESS)
2121 return r;
2122
2123 if (order->num_cols >= count)
2124 return ERROR_FUNCTION_FAILED;
2125
2126 r = VIEW_find_column(view, name, tv->name, &n);
2127 if (r != ERROR_SUCCESS)
2128 return r;
2129
2130 order->cols[order->num_cols] = n;
2131 TRACE("Ordering by column %s (%d)\n", debugstr_w(name), n);
2132
2133 order->num_cols++;
2134
2135 return ERROR_SUCCESS;
2136 }
2137
2138 static UINT order_compare(struct tagMSIVIEW *view, MSIORDERINFO *order,
2139 UINT a, UINT b, UINT *swap)
2140 {
2141 UINT r, i, a_val = 0, b_val = 0;
2142
2143 *swap = 0;
2144 for (i = 0; i < order->num_cols; i++)
2145 {
2146 r = TABLE_fetch_int(view, a, order->cols[i], &a_val);
2147 if (r != ERROR_SUCCESS)
2148 return r;
2149
2150 r = TABLE_fetch_int(view, b, order->cols[i], &b_val);
2151 if (r != ERROR_SUCCESS)
2152 return r;
2153
2154 if (a_val != b_val)
2155 {
2156 if (a_val > b_val)
2157 *swap = 1;
2158 break;
2159 }
2160 }
2161
2162 return ERROR_SUCCESS;
2163 }
2164
2165 static UINT order_mergesort(struct tagMSIVIEW *view, MSIORDERINFO *order,
2166 UINT left, UINT right)
2167 {
2168 UINT r, i, j, temp;
2169 UINT swap = 0, center = (left + right) / 2;
2170 UINT *array = order->reorder;
2171
2172 if (left == right)
2173 return ERROR_SUCCESS;
2174
2175 /* sort the left half */
2176 r = order_mergesort(view, order, left, center);
2177 if (r != ERROR_SUCCESS)
2178 return r;
2179
2180 /* sort the right half */
2181 r = order_mergesort(view, order, center + 1, right);
2182 if (r != ERROR_SUCCESS)
2183 return r;
2184
2185 for (i = left, j = center + 1; (i <= center) && (j <= right); i++)
2186 {
2187 r = order_compare(view, order, array[i], array[j], &swap);
2188 if (r != ERROR_SUCCESS)
2189 return r;
2190
2191 if (swap)
2192 {
2193 temp = array[j];
2194 memmove(&array[i + 1], &array[i], (j - i) * sizeof(UINT));
2195 array[i] = temp;
2196 j++;
2197 center++;
2198 }
2199 }
2200
2201 return ERROR_SUCCESS;
2202 }
2203
2204 static UINT order_verify(struct tagMSIVIEW *view, MSIORDERINFO *order, UINT num_rows)
2205 {
2206 UINT i, swap, r;
2207
2208 for (i = 1; i < num_rows; i++)
2209 {
2210 r = order_compare(view, order, order->reorder[i - 1],
2211 order->reorder[i], &swap);
2212 if (r != ERROR_SUCCESS)
2213 return r;
2214
2215 if (!swap)
2216 continue;
2217
2218 ERR("Bad order! %d\n", i);
2219 return ERROR_FUNCTION_FAILED;
2220 }
2221
2222 return ERROR_SUCCESS;
2223 }
2224
2225 static UINT TABLE_sort(struct tagMSIVIEW *view, column_info *columns)
2226 {
2227 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
2228 MSIORDERINFO *order;
2229 column_info *ptr;
2230 UINT r, i;
2231 UINT rows, cols;
2232
2233 TRACE("sorting table %s\n", debugstr_w(tv->name));
2234
2235 r = TABLE_get_dimensions(view, &rows, &cols);
2236 if (r != ERROR_SUCCESS)
2237 return r;
2238
2239 if (rows == 0)
2240 return ERROR_SUCCESS;
2241
2242 order = msi_alloc_zero(sizeof(MSIORDERINFO) + sizeof(UINT) * cols);
2243 if (!order)
2244 return ERROR_OUTOFMEMORY;
2245
2246 for (ptr = columns; ptr; ptr = ptr->next)
2247 order_add_column(view, order, ptr->column);
2248
2249 order->reorder = msi_alloc(rows * sizeof(UINT));
2250 if (!order->reorder)
2251 return ERROR_OUTOFMEMORY;
2252
2253 for (i = 0; i < rows; i++)
2254 order->reorder[i] = i;
2255
2256 r = order_mergesort(view, order, 0, rows - 1);
2257 if (r != ERROR_SUCCESS)
2258 return r;
2259
2260 r = order_verify(view, order, rows);
2261 if (r != ERROR_SUCCESS)
2262 return r;
2263
2264 tv->order = order;
2265
2266 return ERROR_SUCCESS;
2267 }
2268
2269 static UINT TABLE_drop(struct tagMSIVIEW *view)
2270 {
2271 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2272 MSIVIEW *tables = NULL;
2273 MSIRECORD *rec = NULL;
2274 UINT r, row;
2275 INT i;
2276
2277 TRACE("dropping table %s\n", debugstr_w(tv->name));
2278
2279 for (i = tv->table->col_count - 1; i >= 0; i--)
2280 {
2281 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2282 tv->table->colinfo[i].number);
2283 if (r != ERROR_SUCCESS)
2284 return r;
2285 }
2286
2287 rec = MSI_CreateRecord(1);
2288 if (!rec)
2289 return ERROR_OUTOFMEMORY;
2290
2291 MSI_RecordSetStringW(rec, 1, tv->name);
2292
2293 r = TABLE_CreateView(tv->db, szTables, &tables);
2294 if (r != ERROR_SUCCESS)
2295 return r;
2296
2297 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row);
2298 if (r != ERROR_SUCCESS)
2299 goto done;
2300
2301 r = TABLE_delete_row(tables, row);
2302 if (r != ERROR_SUCCESS)
2303 goto done;
2304
2305 list_remove(&tv->table->entry);
2306 free_table(tv->table);
2307
2308 done:
2309 msiobj_release(&rec->hdr);
2310 tables->ops->delete(tables);
2311
2312 return r;
2313 }
2314
2315 static const MSIVIEWOPS table_ops =
2316 {
2317 TABLE_fetch_int,
2318 TABLE_fetch_stream,
2319 TABLE_get_row,
2320 TABLE_set_row,
2321 TABLE_insert_row,
2322 TABLE_delete_row,
2323 TABLE_execute,
2324 TABLE_close,
2325 TABLE_get_dimensions,
2326 TABLE_get_column_info,
2327 TABLE_modify,
2328 TABLE_delete,
2329 TABLE_find_matching_rows,
2330 TABLE_add_ref,
2331 TABLE_release,
2332 TABLE_add_column,
2333 TABLE_remove_column,
2334 TABLE_sort,
2335 TABLE_drop,
2336 };
2337
2338 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2339 {
2340 MSITABLEVIEW *tv ;
2341 UINT r, sz;
2342
2343 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
2344 static const WCHAR Storages[] = {'_','S','t','o','r','a','g','e','s',0};
2345
2346 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2347
2348 if ( !lstrcmpW( name, Streams ) )
2349 return STREAMS_CreateView( db, view );
2350 else if ( !lstrcmpW( name, Storages ) )
2351 return STORAGES_CreateView( db, view );
2352
2353 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
2354 tv = msi_alloc_zero( sz );
2355 if( !tv )
2356 return ERROR_FUNCTION_FAILED;
2357
2358 r = get_table( db, name, &tv->table );
2359 if( r != ERROR_SUCCESS )
2360 {
2361 msi_free( tv );
2362 WARN("table not found\n");
2363 return r;
2364 }
2365
2366 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2367
2368 /* fill the structure */
2369 tv->view.ops = &table_ops;
2370 tv->db = db;
2371 tv->columns = tv->table->colinfo;
2372 tv->num_cols = tv->table->col_count;
2373 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count, LONG_STR_BYTES );
2374
2375 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2376
2377 *view = (MSIVIEW*) tv;
2378 lstrcpyW( tv->name, name );
2379
2380 return ERROR_SUCCESS;
2381 }
2382
2383 UINT MSI_CommitTables( MSIDATABASE *db )
2384 {
2385 UINT r, bytes_per_strref;
2386 HRESULT hr;
2387 MSITABLE *table = NULL;
2388
2389 TRACE("%p\n",db);
2390
2391 r = msi_save_string_table( db->strings, db->storage, &bytes_per_strref );
2392 if( r != ERROR_SUCCESS )
2393 {
2394 WARN("failed to save string table r=%08x\n",r);
2395 return r;
2396 }
2397
2398 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2399 {
2400 r = save_table( db, table, bytes_per_strref );
2401 if( r != ERROR_SUCCESS )
2402 {
2403 WARN("failed to save table %s (r=%08x)\n",
2404 debugstr_w(table->name), r);
2405 return r;
2406 }
2407 }
2408
2409 /* force everything to reload next time */
2410 free_cached_tables( db );
2411
2412 hr = IStorage_Commit( db->storage, 0 );
2413 if (FAILED( hr ))
2414 {
2415 WARN("failed to commit changes 0x%08x\n", hr);
2416 r = ERROR_FUNCTION_FAILED;
2417 }
2418 return r;
2419 }
2420
2421 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2422 {
2423 MSITABLE *t;
2424 UINT r;
2425
2426 TRACE("%p %s\n", db, debugstr_w(table));
2427
2428 if (!table)
2429 return MSICONDITION_ERROR;
2430
2431 r = get_table( db, table, &t );
2432 if (r != ERROR_SUCCESS)
2433 return MSICONDITION_NONE;
2434
2435 return t->persistent;
2436 }
2437
2438 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2439 {
2440 UINT ret = 0, i;
2441
2442 for (i = 0; i < bytes; i++)
2443 ret += (data[col + i] << i * 8);
2444
2445 return ret;
2446 }
2447
2448 static UINT msi_record_encoded_stream_name( const MSITABLEVIEW *tv, MSIRECORD *rec, LPWSTR *pstname )
2449 {
2450 LPWSTR stname = NULL, sval, p;
2451 DWORD len;
2452 UINT i, r;
2453
2454 TRACE("%p %p\n", tv, rec);
2455
2456 len = lstrlenW( tv->name ) + 1;
2457 stname = msi_alloc( len*sizeof(WCHAR) );
2458 if ( !stname )
2459 {
2460 r = ERROR_OUTOFMEMORY;
2461 goto err;
2462 }
2463
2464 lstrcpyW( stname, tv->name );
2465
2466 for ( i = 0; i < tv->num_cols; i++ )
2467 {
2468 if ( tv->columns[i].type & MSITYPE_KEY )
2469 {
2470 sval = msi_dup_record_field( rec, i + 1 );
2471 if ( !sval )
2472 {
2473 r = ERROR_OUTOFMEMORY;
2474 goto err;
2475 }
2476
2477 len += lstrlenW( szDot ) + lstrlenW ( sval );
2478 p = msi_realloc ( stname, len*sizeof(WCHAR) );
2479 if ( !p )
2480 {
2481 r = ERROR_OUTOFMEMORY;
2482 goto err;
2483 }
2484 stname = p;
2485
2486 lstrcatW( stname, szDot );
2487 lstrcatW( stname, sval );
2488
2489 msi_free( sval );
2490 }
2491 else
2492 continue;
2493 }
2494
2495 *pstname = encode_streamname( FALSE, stname );
2496 msi_free( stname );
2497
2498 return ERROR_SUCCESS;
2499
2500 err:
2501 msi_free ( stname );
2502 *pstname = NULL;
2503 return r;
2504 }
2505
2506 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2507 IStorage *stg,
2508 const BYTE *rawdata, UINT bytes_per_strref )
2509 {
2510 UINT i, val, ofs = 0;
2511 USHORT mask;
2512 MSICOLUMNINFO *columns = tv->columns;
2513 MSIRECORD *rec;
2514
2515 mask = rawdata[0] | (rawdata[1] << 8);
2516 rawdata += 2;
2517
2518 rec = MSI_CreateRecord( tv->num_cols );
2519 if( !rec )
2520 return rec;
2521
2522 TRACE("row ->\n");
2523 for( i=0; i<tv->num_cols; i++ )
2524 {
2525 if ( (mask&1) && (i>=(mask>>8)) )
2526 break;
2527 /* all keys must be present */
2528 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2529 continue;
2530
2531 if( MSITYPE_IS_BINARY(tv->columns[i].type) )
2532 {
2533 LPWSTR encname;
2534 IStream *stm = NULL;
2535 UINT r;
2536
2537 ofs += bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2538
2539 r = msi_record_encoded_stream_name( tv, rec, &encname );
2540 if ( r != ERROR_SUCCESS )
2541 return NULL;
2542
2543 r = IStorage_OpenStream( stg, encname, NULL,
2544 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm );
2545 msi_free( encname );
2546 if ( r != ERROR_SUCCESS )
2547 return NULL;
2548
2549 MSI_RecordSetStream( rec, i+1, stm );
2550 TRACE(" field %d [%s]\n", i+1, debugstr_w(encname));
2551 }
2552 else if( columns[i].type & MSITYPE_STRING )
2553 {
2554 LPCWSTR sval;
2555
2556 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2557 sval = msi_string_lookup_id( st, val );
2558 MSI_RecordSetStringW( rec, i+1, sval );
2559 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2560 ofs += bytes_per_strref;
2561 }
2562 else
2563 {
2564 UINT n = bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2565 switch( n )
2566 {
2567 case 2:
2568 val = read_raw_int(rawdata, ofs, n);
2569 if (val)
2570 MSI_RecordSetInteger( rec, i+1, val-0x8000 );
2571 TRACE(" field %d [0x%04x]\n", i+1, val );
2572 break;
2573 case 4:
2574 val = read_raw_int(rawdata, ofs, n);
2575 if (val)
2576 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2577 TRACE(" field %d [0x%08x]\n", i+1, val );
2578 break;
2579 default:
2580 ERR("oops - unknown column width %d\n", n);
2581 break;
2582 }
2583 ofs += n;
2584 }
2585 }
2586 return rec;
2587 }
2588
2589 static void dump_record( MSIRECORD *rec )
2590 {
2591 UINT i, n;
2592
2593 n = MSI_RecordGetFieldCount( rec );
2594 for( i=1; i<=n; i++ )
2595 {
2596 LPCWSTR sval = MSI_RecordGetString( rec, i );
2597
2598 if( MSI_RecordIsNull( rec, i ) )
2599 TRACE("row -> []\n");
2600 else if( (sval = MSI_RecordGetString( rec, i )) )
2601 TRACE("row -> [%s]\n", debugstr_w(sval));
2602 else
2603 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2604 }
2605 }
2606
2607 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2608 {
2609 LPCWSTR sval;
2610 UINT i;
2611
2612 for( i=0; i<(rawsize/2); i++ )
2613 {
2614 sval = msi_string_lookup_id( st, rawdata[i] );
2615 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2616 }
2617 }
2618
2619 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2620 {
2621 LPCWSTR str;
2622 UINT i, r, *data;
2623
2624 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2625 for( i=0; i<tv->num_cols; i++ )
2626 {
2627 data[i] = 0;
2628
2629 if ( ~tv->columns[i].type & MSITYPE_KEY )
2630 continue;
2631
2632 /* turn the transform column value into a row value */
2633 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2634 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2635 {
2636 str = MSI_RecordGetString( rec, i+1 );
2637 r = msi_string2idW( tv->db->strings, str, &data[i] );
2638
2639 /* if there's no matching string in the string table,
2640 these keys can't match any record, so fail now. */
2641 if( ERROR_SUCCESS != r )
2642 {
2643 msi_free( data );
2644 return NULL;
2645 }
2646 }
2647 else
2648 {
2649 data[i] = MSI_RecordGetInteger( rec, i+1 );
2650
2651 if (data[i] == MSI_NULL_INTEGER)
2652 data[i] = 0;
2653 else if ((tv->columns[i].type&0xff) == 2)
2654 data[i] += 0x8000;
2655 else
2656 data[i] += 0x80000000;
2657 }
2658 }
2659 return data;
2660 }
2661
2662 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2663 {
2664 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2665
2666 for( i=0; i<tv->num_cols; i++ )
2667 {
2668 if ( ~tv->columns[i].type & MSITYPE_KEY )
2669 continue;
2670
2671 /* turn the transform column value into a row value */
2672 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2673 if ( r != ERROR_SUCCESS )
2674 {
2675 ERR("TABLE_fetch_int shouldn't fail here\n");
2676 break;
2677 }
2678
2679 /* if this key matches, move to the next column */
2680 if ( x != data[i] )
2681 {
2682 ret = ERROR_FUNCTION_FAILED;
2683 break;
2684 }
2685
2686 ret = ERROR_SUCCESS;
2687 }
2688
2689 return ret;
2690 }
2691
2692 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2693 {
2694 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2695
2696 data = msi_record_to_row( tv, rec );
2697 if( !data )
2698 return r;
2699 for( i = 0; i < tv->table->row_count; i++ )
2700 {
2701 r = msi_row_matches( tv, i, data );
2702 if( r == ERROR_SUCCESS )
2703 {
2704 *row = i;
2705 break;
2706 }
2707 }
2708 msi_free( data );
2709 return r;
2710 }
2711
2712 typedef struct
2713 {
2714 struct list entry;
2715 LPWSTR name;
2716 } TRANSFORMDATA;
2717
2718 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2719 string_table *st, TRANSFORMDATA *transform,
2720 UINT bytes_per_strref )
2721 {
2722 UINT rawsize = 0;
2723 BYTE *rawdata = NULL;
2724 MSITABLEVIEW *tv = NULL;
2725 UINT r, n, sz, i, mask;
2726 MSIRECORD *rec = NULL;
2727 UINT colcol = 0;
2728 WCHAR coltable[32];
2729 LPWSTR name;
2730
2731 if (!transform)
2732 return ERROR_SUCCESS;
2733
2734 name = transform->name;
2735
2736 coltable[0] = 0;
2737 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2738
2739 /* read the transform data */
2740 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2741 if ( !rawdata )
2742 {
2743 TRACE("table %s empty\n", debugstr_w(name) );
2744 return ERROR_INVALID_TABLE;
2745 }
2746
2747 /* create a table view */
2748 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2749 if( r != ERROR_SUCCESS )
2750 goto err;
2751
2752 r = tv->view.ops->execute( &tv->view, NULL );
2753 if( r != ERROR_SUCCESS )
2754 goto err;
2755
2756 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2757 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2758
2759 /* interpret the data */
2760 r = ERROR_SUCCESS;
2761 for( n=0; n < rawsize; )
2762 {
2763 mask = rawdata[n] | (rawdata[n+1] << 8);
2764
2765 if (mask&1)
2766 {
2767 /*
2768 * if the low bit is set, columns are continuous and
2769 * the number of columns is specified in the high byte
2770 */
2771 sz = 2;
2772 for( i=0; i<tv->num_cols; i++ )
2773 {
2774 if( (tv->columns[i].type & MSITYPE_STRING) &&
2775 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2776 sz += bytes_per_strref;
2777 else
2778 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2779 }
2780 }
2781 else
2782 {
2783 /*
2784 * If the low bit is not set, mask is a bitmask.
2785 * Excepting for key fields, which are always present,
2786 * each bit indicates that a field is present in the transform record.
2787 *
2788 * mask == 0 is a special case ... only the keys will be present
2789 * and it means that this row should be deleted.
2790 */
2791 sz = 2;
2792 for( i=0; i<tv->num_cols; i++ )
2793 {
2794 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2795 {
2796 if( (tv->columns[i].type & MSITYPE_STRING) &&
2797 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2798 sz += bytes_per_strref;
2799 else
2800 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2801 }
2802 }
2803 }
2804
2805 /* check we didn't run of the end of the table */
2806 if ( (n+sz) > rawsize )
2807 {
2808 ERR("borked.\n");
2809 dump_table( st, (USHORT *)rawdata, rawsize );
2810 break;
2811 }
2812
2813 rec = msi_get_transform_record( tv, st, stg, &rawdata[n], bytes_per_strref );
2814 if (rec)
2815 {
2816 WCHAR table[32];
2817 DWORD sz = 32;
2818 UINT number = MSI_NULL_INTEGER;
2819 UINT row = 0;
2820
2821 if (!lstrcmpW( name, szColumns ))
2822 {
2823 MSI_RecordGetStringW( rec, 1, table, &sz );
2824 number = MSI_RecordGetInteger( rec, 2 );
2825
2826 /*
2827 * Native msi seems writes nul into the Number (2nd) column of
2828 * the _Columns table, only when the columns are from a new table
2829 */
2830 if ( number == MSI_NULL_INTEGER )
2831 {
2832 /* reset the column number on a new table */
2833 if (lstrcmpW( coltable, table ))
2834 {
2835 colcol = 0;
2836 lstrcpyW( coltable, table );
2837 }
2838
2839 /* fix nul column numbers */
2840 MSI_RecordSetInteger( rec, 2, ++colcol );
2841 }
2842 }
2843
2844 if (TRACE_ON(msidb)) dump_record( rec );
2845
2846 r = msi_table_find_row( tv, rec, &row );
2847 if (r == ERROR_SUCCESS)
2848 {
2849 if (!mask)
2850 {
2851 TRACE("deleting row [%d]:\n", row);
2852 r = TABLE_delete_row( &tv->view, row );
2853 if (r != ERROR_SUCCESS)
2854 WARN("failed to delete row %u\n", r);
2855 }
2856 else if (mask & 1)
2857 {
2858 TRACE("modifying full row [%d]:\n", row);
2859 r = TABLE_set_row( &tv->view, row, rec, (1 << tv->num_cols) - 1 );
2860 if (r != ERROR_SUCCESS)
2861 WARN("failed to modify row %u\n", r);
2862 }
2863 else
2864 {
2865 TRACE("modifying masked row [%d]:\n", row);
2866 r = TABLE_set_row( &tv->view, row, rec, mask );
2867 if (r != ERROR_SUCCESS)
2868 WARN("failed to modify row %u\n", r);
2869 }
2870 }
2871 else
2872 {
2873 TRACE("inserting row\n");
2874 r = TABLE_insert_row( &tv->view, rec, -1, FALSE );
2875 if (r != ERROR_SUCCESS)
2876 WARN("failed to insert row %u\n", r);
2877 }
2878
2879 if (number != MSI_NULL_INTEGER && !lstrcmpW( name, szColumns ))
2880 msi_update_table_columns( db, table );
2881
2882 msiobj_release( &rec->hdr );
2883 }
2884
2885 n += sz;
2886 }
2887
2888 err:
2889 /* no need to free the table, it's associated with the database */
2890 msi_free( rawdata );
2891 if( tv )
2892 tv->view.ops->delete( &tv->view );
2893
2894 return ERROR_SUCCESS;
2895 }
2896
2897 /*
2898 * msi_table_apply_transform
2899 *
2900 * Enumerate the table transforms in a transform storage and apply each one.
2901 */
2902 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2903 {
2904 struct list transforms;
2905 IEnumSTATSTG *stgenum = NULL;
2906 TRANSFORMDATA *transform;
2907 TRANSFORMDATA *tables = NULL, *columns = NULL;
2908 HRESULT r;
2909 STATSTG stat;
2910 string_table *strings;
2911 UINT ret = ERROR_FUNCTION_FAILED;
2912 UINT bytes_per_strref;
2913
2914 TRACE("%p %p\n", db, stg );
2915
2916 strings = msi_load_string_table( stg, &bytes_per_strref );
2917 if( !strings )
2918 goto end;
2919
2920 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2921 if( FAILED( r ) )
2922 goto end;
2923
2924 list_init(&transforms);
2925
2926 while ( TRUE )
2927 {
2928 MSITABLEVIEW *tv = NULL;
2929 WCHAR name[0x40];
2930 ULONG count = 0;
2931
2932 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2933 if ( FAILED( r ) || !count )
2934 break;
2935
2936 decode_streamname( stat.pwcsName, name );
2937 CoTaskMemFree( stat.pwcsName );
2938 if ( name[0] != 0x4840 )
2939 continue;
2940
2941 if ( !lstrcmpW( name+1, szStringPool ) ||
2942 !lstrcmpW( name+1, szStringData ) )
2943 continue;
2944
2945 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2946 if ( !transform )
2947 break;
2948
2949 list_add_tail( &transforms, &transform->entry );
2950
2951 transform->name = strdupW( name + 1 );
2952
2953 if ( !lstrcmpW( transform->name, szTables ) )
2954 tables = transform;
2955 else if (!lstrcmpW( transform->name, szColumns ) )
2956 columns = transform;
2957
2958 TRACE("transform contains stream %s\n", debugstr_w(name));
2959
2960 /* load the table */
2961 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2962 if( r != ERROR_SUCCESS )
2963 continue;
2964
2965 r = tv->view.ops->execute( &tv->view, NULL );
2966 if( r != ERROR_SUCCESS )
2967 {
2968 tv->view.ops->delete( &tv->view );
2969 continue;
2970 }
2971
2972 tv->view.ops->delete( &tv->view );
2973 }
2974
2975 /*
2976 * Apply _Tables and _Columns transforms first so that
2977 * the table metadata is correct, and empty tables exist.
2978 */
2979 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2980 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2981 goto end;
2982
2983 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2984 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2985 goto end;
2986
2987 ret = ERROR_SUCCESS;
2988
2989 while ( !list_empty( &transforms ) )
2990 {
2991 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2992
2993 if ( lstrcmpW( transform->name, szColumns ) &&
2994 lstrcmpW( transform->name, szTables ) &&
2995 ret == ERROR_SUCCESS )
2996 {
2997 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2998 }
2999
3000 list_remove( &transform->entry );
3001 msi_free( transform->name );
3002 msi_free( transform );
3003 }
3004
3005 if ( ret == ERROR_SUCCESS )
3006 append_storage_to_db( db, stg );
3007
3008 end:
3009 if ( stgenum )
3010 IEnumSTATSTG_Release( stgenum );
3011 if ( strings )
3012 msi_destroy_stringtable( strings );
3013
3014 return ret;
3015 }