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Sweden-Number/dlls/msi/table.c

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/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2002 Mike McCormack for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "msipriv.h"
#include "winnls.h"
#include "query.h"
WINE_DEFAULT_DEBUG_CHANNEL(msi);
typedef struct tagMSICOLUMNINFO
{
LPWSTR tablename;
UINT number;
LPWSTR colname;
UINT type;
UINT offset;
} MSICOLUMNINFO;
struct tagMSITABLE
{
USHORT **data;
UINT ref_count;
UINT row_count;
struct tagMSITABLE *next;
struct tagMSITABLE *prev;
WCHAR name[1];
};
#define MAX_STREAM_NAME 0x1f
static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
MSICOLUMNINFO **pcols, UINT *pcount );
static UINT get_tablecolumns( MSIDATABASE *db,
LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
static inline UINT bytes_per_column( MSICOLUMNINFO *col )
{
if( col->type & MSITYPE_STRING )
return 2;
if( (col->type & 0xff) > 4 )
ERR("Invalid column size!\n");
return col->type & 0xff;
}
static int utf2mime(int x)
{
if( (x>='0') && (x<='9') )
return x-'0';
if( (x>='A') && (x<='Z') )
return x-'A'+10;
if( (x>='a') && (x<='z') )
return x-'a'+10+26;
if( x=='.' )
return 10+26+26;
if( x=='_' )
return 10+26+26+1;
return -1;
}
static BOOL encode_streamname(BOOL bTable, LPCWSTR in, LPWSTR out)
{
DWORD count = MAX_STREAM_NAME;
DWORD ch, next;
if( bTable )
{
*out++ = 0x4840;
count --;
}
while( count -- )
{
ch = *in++;
if( !ch )
{
*out = ch;
return TRUE;
}
if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
{
ch = utf2mime(ch) + 0x4800;
next = *in;
if( next && (next<0x80) )
{
next = utf2mime(next);
if( next >= 0 )
{
next += 0x3ffffc0;
ch += (next<<6);
in++;
}
}
}
*out++ = ch;
}
return FALSE;
}
#if 0
static int mime2utf(int x)
{
if( x<10 )
return x + '0';
if( x<(10+26))
return x - 10 + 'A';
if( x<(10+26+26))
return x - 10 - 26 + 'a';
if( x == (10+26+26) )
return '.';
return '_';
}
static BOOL decode_streamname(LPWSTR in, LPWSTR out)
{
WCHAR ch;
DWORD count = 0;
while ( (ch = *in++) )
{
if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
{
if( ch >= 0x4800 )
ch = mime2utf(ch-0x4800);
else
{
ch -= 0x3800;
*out++ = mime2utf(ch&0x3f);
count++;
ch = mime2utf((ch>>6)&0x3f);
}
}
*out++ = ch;
count++;
}
*out = 0;
return count;
}
#endif
static UINT read_stream_data( IStorage *stg, LPCWSTR stname,
USHORT **pdata, UINT *psz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
VOID *data;
ULONG sz, count;
IStream *stm = NULL;
STATSTG stat;
WCHAR encname[0x20];
encode_streamname(TRUE, stname, encname);
TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
r = IStorage_OpenStream(stg, encname, NULL,
STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
if( FAILED( r ) )
{
WARN("open stream failed r = %08lx - empty table?\n",r);
return ret;
}
r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
if( FAILED( r ) )
{
ERR("open stream failed r = %08lx!\n",r);
goto end;
}
if( stat.cbSize.QuadPart >> 32 )
{
ERR("Too big!\n");
goto end;
}
sz = stat.cbSize.QuadPart;
data = HeapAlloc( GetProcessHeap(), 0, sz );
if( !data )
{
ERR("couldn't allocate memory r=%08lx!\n",r);
ret = ERROR_NOT_ENOUGH_MEMORY;
goto end;
}
r = IStream_Read(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
HeapFree( GetProcessHeap(), 0, data );
ERR("read stream failed r = %08lx!\n",r);
goto end;
}
*pdata = data;
*psz = sz;
ret = ERROR_SUCCESS;
end:
IStream_Release( stm );
return ret;
}
static UINT write_stream_data( IStorage *stg, LPCWSTR stname,
LPVOID data, UINT sz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
ULONG count;
IStream *stm = NULL;
ULARGE_INTEGER size;
LARGE_INTEGER pos;
r = IStorage_OpenStream( stg, stname, NULL,
STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
if( FAILED( r ) )
{
WARN("open stream failed r = %08lx - empty table?\n",r);
return ret;
}
size.QuadPart = sz;
r = IStream_SetSize( stm, size );
if( FAILED( r ) || ( count != sz ) )
{
ERR("Failed to SetSize\n");
goto end;
}
pos.QuadPart = 0;
r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
if( FAILED( r ) || ( count != sz ) )
{
ERR("Failed to Seek\n");
goto end;
}
r = IStream_Write(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
ERR("Failed to Write\n");
goto end;
}
ret = ERROR_SUCCESS;
end:
IStream_Release( stm );
return ret;
}
UINT read_table_from_storage( MSIDATABASE *db, LPCWSTR name, MSITABLE **ptable)
{
MSITABLE *t;
USHORT *rawdata = NULL;
UINT rawsize = 0, r, i, j, row_size = 0, num_cols = 0;
MSICOLUMNINFO *cols, *last_col;
TRACE("%s\n",debugstr_w(name));
/* non-existing tables should be interpretted as empty tables */
t = HeapAlloc( GetProcessHeap(), 0,
sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
if( !t )
return ERROR_NOT_ENOUGH_MEMORY;
r = table_get_column_info( db, name, &cols, &num_cols );
if( r != ERROR_SUCCESS )
{
HeapFree( GetProcessHeap(), 0, t );
return r;
}
last_col = &cols[num_cols-1];
row_size = last_col->offset + bytes_per_column( last_col );
t->data = NULL;
lstrcpyW( t->name, name );
t->ref_count = 1;
*ptable = t;
/* if we can't read the table, just assume that it's empty */
read_stream_data( db->storage, name, &rawdata, &rawsize );
if( !rawdata )
return ERROR_SUCCESS;
TRACE("Read %d bytes\n", rawsize );
if( rawsize % row_size )
{
ERR("Table size is invalid %d/%d\n", rawsize, row_size );
return ERROR_FUNCTION_FAILED;
}
t->row_count = rawsize / row_size;
t->data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
t->row_count * sizeof (USHORT*) );
if( !t->data )
return ERROR_NOT_ENOUGH_MEMORY; /* FIXME: memory leak */
/* transpose all the data */
TRACE("Transposing data from %d columns\n", t->row_count );
for( i=0; i<t->row_count; i++ )
{
t->data[i] = HeapAlloc( GetProcessHeap(), 0, row_size );
if( !t->data[i] )
return ERROR_NOT_ENOUGH_MEMORY; /* FIXME: memory leak */
for( j=0; j<num_cols; j++ )
{
UINT ofs = cols[j].offset/2;
UINT n = bytes_per_column( &cols[j] );
switch( n )
{
case 2:
t->data[i][ofs] = rawdata[ofs*t->row_count + i ];
break;
case 4:
t->data[i][ofs] = rawdata[ofs*t->row_count + i ];
t->data[i][ofs+1] = rawdata[ofs*t->row_count + i + 1];
break;
default:
ERR("oops - unknown column width %d\n", n);
return ERROR_FUNCTION_FAILED;
}
}
}
HeapFree( GetProcessHeap(), 0, cols );
HeapFree( GetProcessHeap(), 0, rawdata );
return ERROR_SUCCESS;
}
/* add this table to the list of cached tables in the database */
void add_table(MSIDATABASE *db, MSITABLE *table)
{
table->next = db->first_table;
table->prev = NULL;
if( db->first_table )
db->first_table->prev = table;
else
db->last_table = table;
db->first_table = table;
}
/* remove from the list of cached tables */
void remove_table( MSIDATABASE *db, MSITABLE *table )
{
if( table->next )
table->next->prev = table->prev;
else
db->last_table = table->prev;
if( table->prev )
table->prev->next = table->next;
else
db->first_table = table->next;
table->next = NULL;
table->prev = NULL;
}
void release_table( MSIDATABASE *db, MSITABLE *table )
{
if( !table->ref_count )
ERR("Trying to destroy table with refcount 0\n");
table->ref_count --;
if( !table->ref_count )
{
remove_table( db, table );
HeapFree( GetProcessHeap(), 0, table->data );
HeapFree( GetProcessHeap(), 0, table );
TRACE("Destroyed table %s\n", debugstr_w(table->name));
}
}
void free_cached_tables( MSIDATABASE *db )
{
while( db->first_table )
{
MSITABLE *t = db->first_table;
if ( --t->ref_count )
ERR("table ref count not zero for %s\n", debugstr_w(t->name));
remove_table( db, t );
HeapFree( GetProcessHeap(), 0, t->data );
HeapFree( GetProcessHeap(), 0, t );
}
}
UINT find_cached_table(MSIDATABASE *db, LPCWSTR name, MSITABLE **ptable)
{
MSITABLE *t;
for( t = db->first_table; t; t=t->next )
{
if( !lstrcmpW( name, t->name ) )
{
*ptable = t;
return ERROR_SUCCESS;
}
}
return ERROR_FUNCTION_FAILED;
}
static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
{
UINT r, column_count;
MSICOLUMNINFO *columns;
/* get the number of columns in this table */
column_count = 0;
r = get_tablecolumns( db, name, NULL, &column_count );
if( r != ERROR_SUCCESS )
return r;
/* if there's no columns, there's no table */
if( column_count == 0 )
return ERROR_INVALID_PARAMETER;
TRACE("Table %s found\n", debugstr_w(name) );
columns = HeapAlloc( GetProcessHeap(), 0, column_count*sizeof (MSICOLUMNINFO));
if( !columns )
return ERROR_FUNCTION_FAILED;
r = get_tablecolumns( db, name, columns, &column_count );
if( r != ERROR_SUCCESS )
{
HeapFree( GetProcessHeap(), 0, columns );
return ERROR_FUNCTION_FAILED;
}
*pcols = columns;
*pcount = column_count;
return r;
}
UINT get_table(MSIDATABASE *db, LPCWSTR name, MSITABLE **ptable)
{
UINT r;
*ptable = NULL;
/* first, see if the table is cached */
r = find_cached_table( db, name, ptable );
if( r == ERROR_SUCCESS )
{
(*ptable)->ref_count++;
return r;
}
r = read_table_from_storage( db, name, ptable );
if( r != ERROR_SUCCESS )
return r;
/* add the table to the list */
add_table( db, *ptable );
(*ptable)->ref_count++;
return ERROR_SUCCESS;
}
UINT save_table( MSIDATABASE *db, MSITABLE *ptable )
{
return ERROR_SUCCESS;
}
UINT load_string_table( MSIDATABASE *db )
{
CHAR *data;
USHORT *pool;
UINT r, ret = ERROR_FUNCTION_FAILED, datasize = 0, poolsize = 0;
DWORD i, count, offset, len;
const WCHAR szStringData[] = {
'_','S','t','r','i','n','g','D','a','t','a',0 };
const WCHAR szStringPool[] = {
'_','S','t','r','i','n','g','P','o','o','l',0 };
if( db->strings )
{
msi_destroy_stringtable( db->strings );
db->strings = NULL;
}
r = read_stream_data( db->storage, szStringPool, &pool, &poolsize );
if( r != ERROR_SUCCESS)
goto end;
r = read_stream_data( db->storage, szStringData, (USHORT**)&data, &datasize );
if( r != ERROR_SUCCESS)
goto end;
count = poolsize/4;
db->strings = msi_init_stringtable( count );
offset = 0;
for( i=0; i<count; i++ )
{
len = pool[i*2];
msi_addstring( db->strings, i, data+offset, len, pool[i*2+1] );
offset += len;
}
TRACE("Loaded %ld strings\n", count);
ret = ERROR_SUCCESS;
end:
if( pool )
HeapFree( GetProcessHeap(), 0, pool );
if( data )
HeapFree( GetProcessHeap(), 0, data );
return ret;
}
UINT save_string_table( MSIDATABASE *db )
{
UINT i, count, datasize, poolsize, sz, remaining, r;
UINT ret = ERROR_FUNCTION_FAILED;
const WCHAR szStringData[] = {
'_','S','t','r','i','n','g','D','a','t','a',0 };
const WCHAR szStringPool[] = {
'_','S','t','r','i','n','g','P','o','o','l',0 };
CHAR *data = NULL;
USHORT *pool = NULL;
/* construct the new table in memory first */
count = msi_string_count( db->strings );
poolsize = count*2*sizeof(USHORT);
datasize = msi_string_totalsize( db->strings );
pool = HeapAlloc( GetProcessHeap(), 0, poolsize );
if( ! pool )
goto err;
data = HeapAlloc( GetProcessHeap(), 0, datasize );
if( ! data )
goto err;
remaining = datasize;
for( i=0; i<count; i++ )
{
sz = remaining;
r = msi_id2stringA( db->strings, i, data+remaining, &sz );
if( r != ERROR_SUCCESS )
goto err;
pool[ i*2 ] = sz;
pool[ i*2 + 1 ] = msi_id_refcount( db->strings, i );
remaining -= sz;
if( remaining < 0 )
{
ERR("oops remaining %d < 0\n", remaining);
goto err;
}
}
if( remaining != 0 )
{
ERR("oops remaining %d != 0\n", remaining);
goto err;
}
/* write the streams */
r = write_stream_data( db->storage, szStringData, data, datasize );
if( r )
goto err;
r = write_stream_data( db->storage, szStringPool, pool, poolsize );
if( r )
goto err;
ret = ERROR_SUCCESS;
err:
if( data )
HeapFree( GetProcessHeap(), 0, data );
if( pool )
HeapFree( GetProcessHeap(), 0, pool );
return ret;
}
static LPWSTR strdupW( LPCWSTR str )
{
UINT len = lstrlenW( str ) + 1;
LPWSTR ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof (WCHAR) );
if( ret )
lstrcpyW( ret, str );
return ret;
}
/* information for default tables */
const WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
const WCHAR szTable[] = { 'T','a','b','l','e',0 };
const WCHAR szName[] = { 'N','a','m','e',0 };
const WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
const WCHAR szColumn[] = { 'C','o','l','u','m','n',0 };
const WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
const WCHAR szType[] = { 'T','y','p','e',0 };
struct standard_table {
LPCWSTR tablename;
LPCWSTR columnname;
UINT number;
UINT type;
} MSI_standard_tables[] =
{
{ szTables, szName, 1, MSITYPE_VALID | MSITYPE_STRING | 32},
{ szColumns, szTable, 1, MSITYPE_VALID | MSITYPE_STRING | 32},
{ szColumns, szNumber, 2, MSITYPE_VALID | 2},
{ szColumns, szName, 3, MSITYPE_VALID | MSITYPE_STRING | 32},
{ szColumns, szType, 4, MSITYPE_VALID | 2},
};
#define STANDARD_TABLE_COUNT \
(sizeof(MSI_standard_tables)/sizeof(struct standard_table))
UINT get_defaulttablecolumns( LPCWSTR szTable, MSICOLUMNINFO *colinfo, UINT *sz)
{
DWORD i, n=0;
for(i=0; i<STANDARD_TABLE_COUNT; i++)
{
if( lstrcmpW( szTable, MSI_standard_tables[i].tablename ) )
continue;
if(colinfo && (n < *sz) )
{
colinfo[n].tablename = strdupW(MSI_standard_tables[i].tablename);
colinfo[n].colname = strdupW(MSI_standard_tables[i].columnname);
colinfo[n].number = MSI_standard_tables[i].number;
colinfo[n].type = MSI_standard_tables[i].type;
/* ERR("Table %s has column %s\n",debugstr_w(colinfo[n].tablename),
debugstr_w(colinfo[n].colname)); */
if( n )
colinfo[n].offset = colinfo[n-1].offset
+ bytes_per_column( &colinfo[n-1] );
else
colinfo[n].offset = 0;
}
n++;
if( colinfo && (n >= *sz) )
break;
}
*sz = n;
return ERROR_SUCCESS;
}
LPWSTR MSI_makestring( MSIDATABASE *db, UINT stringid)
{
UINT sz=0, r;
LPWSTR str;
r = msi_id2stringW( db->strings, stringid, NULL, &sz );
if( r != ERROR_SUCCESS )
return NULL;
sz ++; /* space for NUL char */
str = HeapAlloc( GetProcessHeap(), 0, sz*sizeof (WCHAR));
if( !str )
return str;
r = msi_id2stringW( db->strings, stringid, str, &sz );
if( r == ERROR_SUCCESS )
return str;
HeapFree( GetProcessHeap(), 0, str );
return NULL;
}
static UINT get_tablecolumns( MSIDATABASE *db,
LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
{
UINT r, i, n=0, table_id, count, maxcount = *sz;
MSITABLE *table = NULL;
const WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
/* first check if there is a default table with that name */
r = get_defaulttablecolumns( szTableName, colinfo, sz );
if( ( r == ERROR_SUCCESS ) && *sz )
return r;
r = get_table( db, szColumns, &table);
if( r != ERROR_SUCCESS )
{
ERR("table %s not available\n", debugstr_w(szColumns));
return r;
}
/* convert table and column names to IDs from the string table */
r = msi_string2id( db->strings, szTableName, &table_id );
if( r != ERROR_SUCCESS )
{
release_table( db, table );
ERR("Couldn't find id for %s\n", debugstr_w(szTableName));
return r;
}
TRACE("Table id is %d\n", table_id);
count = table->row_count;
for( i=0; i<count; i++ )
{
if( table->data[ i ][ 0 ] != table_id )
continue;
if( colinfo )
{
UINT id = table->data[ i ] [ 2 ];
colinfo[n].tablename = MSI_makestring( db, table_id );
colinfo[n].number = table->data[ i ][ 1 ] - (1<<15);
colinfo[n].colname = MSI_makestring( db, id );
colinfo[n].type = table->data[ i ] [ 3 ];
/* this assumes that columns are in order in the table */
if( n )
colinfo[n].offset = colinfo[n-1].offset
+ bytes_per_column( &colinfo[n-1] );
else
colinfo[n].offset = 0;
TRACE("table %s column %d is [%s] (%d) with type %08x "
"offset %d at row %d\n", debugstr_w(szTableName),
colinfo[n].number, debugstr_w(colinfo[n].colname),
id, colinfo[n].type, colinfo[n].offset, i);
if( n != (colinfo[n].number-1) )
{
ERR("oops. data in the _Columns table isn't in the right "
"order for table %s\n", debugstr_w(szTableName));
return ERROR_FUNCTION_FAILED;
}
}
n++;
if( colinfo && ( n >= maxcount ) )
break;
}
*sz = n;
release_table( db, table );
return ERROR_SUCCESS;
}
/* try to find the table name in the _Tables table */
BOOL TABLE_Exists( MSIDATABASE *db, LPWSTR name )
{
const WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
const WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
UINT r, table_id = 0, i, count;
MSITABLE *table = NULL;
if( !lstrcmpW( name, szTables ) )
return TRUE;
if( !lstrcmpW( name, szColumns ) )
return TRUE;
r = msi_string2id( db->strings, name, &table_id );
if( r != ERROR_SUCCESS )
{
ERR("Couldn't find id for %s\n", debugstr_w(name));
return FALSE;
}
r = get_table( db, szTables, &table);
if( r != ERROR_SUCCESS )
{
ERR("table %s not available\n", debugstr_w(szTables));
return FALSE;
}
/* count = table->size/2; */
count = table->row_count;
for( i=0; i<count; i++ )
if( table->data[ i ][ 0 ] == table_id )
break;
release_table( db, table );
if (i!=count)
return TRUE;
return FALSE;
}
/* below is the query interface to a table */
typedef struct tagMSITABLEVIEW
{
MSIVIEW view;
MSIDATABASE *db;
MSITABLE *table;
MSICOLUMNINFO *columns;
UINT num_cols;
UINT row_size;
WCHAR name[1];
} MSITABLEVIEW;
static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT offset, num_rows, n;
if( !tv->table )
return ERROR_INVALID_PARAMETER;
if( (col==0) || (col>tv->num_cols) )
return ERROR_INVALID_PARAMETER;
/* how many rows are there ? */
num_rows = tv->table->row_count;
if( row >= num_rows )
return ERROR_NO_MORE_ITEMS;
if( tv->columns[col-1].offset >= tv->row_size )
{
ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
ERR("%p %p\n", tv, tv->columns );
return ERROR_FUNCTION_FAILED;
}
offset = row + (tv->columns[col-1].offset/2) * num_rows;
n = bytes_per_column( &tv->columns[col-1] );
switch( n )
{
case 4:
offset = tv->columns[col-1].offset/2;
*val = tv->table->data[row][offset] + (tv->table->data[row][offset + 1] << 16);
break;
case 2:
offset = tv->columns[col-1].offset/2;
*val = tv->table->data[row][offset];
break;
default:
ERR("oops! what is %d bytes per column?\n", n );
return ERROR_FUNCTION_FAILED;
}
TRACE("Data [%d][%d] = %d \n", row, col, *val );
return ERROR_SUCCESS;
}
static UINT TABLE_execute( struct tagMSIVIEW *view, MSIHANDLE record )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT r;
TRACE("%p %ld\n", tv, record);
if( tv->table )
return ERROR_FUNCTION_FAILED;
r = get_table( tv->db, tv->name, &tv->table );
if( r != ERROR_SUCCESS )
return r;
return ERROR_SUCCESS;
}
static UINT TABLE_close( struct tagMSIVIEW *view )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p\n", view );
if( !tv->table )
return ERROR_FUNCTION_FAILED;
release_table( tv->db, tv->table );
tv->table = NULL;
return ERROR_SUCCESS;
}
static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p %p %p\n", view, rows, cols );
if( cols )
*cols = tv->num_cols;
if( rows )
{
if( !tv->table )
return ERROR_INVALID_PARAMETER;
*rows = tv->table->row_count;
}
return ERROR_SUCCESS;
}
static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
UINT n, LPWSTR *name, UINT *type )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p %d %p %p\n", tv, n, name, type );
if( ( n == 0 ) || ( n > tv->num_cols ) )
return ERROR_INVALID_PARAMETER;
if( name )
{
*name = strdupW( tv->columns[n-1].colname );
if( !*name )
return ERROR_FUNCTION_FAILED;
}
if( type )
*type = tv->columns[n-1].type;
return ERROR_SUCCESS;
}
static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIHANDLE hrec)
{
FIXME("%p %d %ld\n", view, eModifyMode, hrec );
return ERROR_CALL_NOT_IMPLEMENTED;
}
static UINT TABLE_delete( struct tagMSIVIEW *view )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p\n", view );
if( tv->table )
release_table( tv->db, tv->table );
tv->table = NULL;
if( tv->columns )
{
UINT i;
for( i=0; i<tv->num_cols; i++)
{
HeapFree( GetProcessHeap(), 0, tv->columns[i].colname );
HeapFree( GetProcessHeap(), 0, tv->columns[i].tablename );
}
HeapFree( GetProcessHeap(), 0, tv->columns );
}
tv->columns = NULL;
HeapFree( GetProcessHeap(), 0, tv );
return ERROR_SUCCESS;
}
MSIVIEWOPS table_ops =
{
TABLE_fetch_int,
TABLE_execute,
TABLE_close,
TABLE_get_dimensions,
TABLE_get_column_info,
TABLE_modify,
TABLE_delete
};
UINT TABLE_CreateView( MSIDATABASE *db, LPWSTR name, MSIVIEW **view )
{
MSITABLEVIEW *tv ;
UINT r, sz, column_count;
MSICOLUMNINFO *columns, *last_col;
TRACE("%p %s %p\n", db, debugstr_w(name), view );
/* get the number of columns in this table */
column_count = 0;
r = get_tablecolumns( db, name, NULL, &column_count );
if( r != ERROR_SUCCESS )
return r;
/* if there's no columns, there's no table */
if( column_count == 0 )
return ERROR_INVALID_PARAMETER;
TRACE("Table found\n");
sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
tv = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sz );
if( !tv )
return ERROR_FUNCTION_FAILED;
columns = HeapAlloc( GetProcessHeap(), 0, column_count*sizeof (MSICOLUMNINFO));
if( !columns )
{
HeapFree( GetProcessHeap(), 0, tv );
return ERROR_FUNCTION_FAILED;
}
r = get_tablecolumns( db, name, columns, &column_count );
if( r != ERROR_SUCCESS )
{
HeapFree( GetProcessHeap(), 0, columns );
HeapFree( GetProcessHeap(), 0, tv );
return ERROR_FUNCTION_FAILED;
}
TRACE("Table has %d columns\n", column_count);
last_col = &columns[column_count-1];
/* fill the structure */
tv->view.ops = &table_ops;
tv->db = db;
tv->columns = columns;
tv->num_cols = column_count;
tv->table = NULL;
tv->row_size = last_col->offset + bytes_per_column( last_col );
TRACE("one row is %d bytes\n", tv->row_size );
*view = (MSIVIEW*) tv;
lstrcpyW( tv->name, name );
return ERROR_SUCCESS;
}
UINT MSI_CommitTables( MSIDATABASE *db )
{
UINT r;
MSITABLE *table = NULL;
save_string_table( db );
for( table = db->first_table; table; table = table->next )
{
r = save_table( db, table );
if( r != ERROR_SUCCESS )
return r;
}
/* force everything to reload next time */
free_cached_tables( db );
return ERROR_SUCCESS;
}
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