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wine/dlls/wbemprox/table.c

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/*
* Copyright 2012 Hans Leidekker 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "config.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wbemcli.h"
#include "wine/debug.h"
#include "wbemprox_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
HRESULT get_column_index( const struct table *table, const WCHAR *name, UINT *column )
{
UINT i;
for (i = 0; i < table->num_cols; i++)
{
if (!strcmpiW( table->columns[i].name, name ))
{
*column = i;
return S_OK;
}
}
return WBEM_E_INVALID_QUERY;
}
UINT get_type_size( CIMTYPE type )
{
if (type & CIM_FLAG_ARRAY) return sizeof(void *);
switch (type)
{
case CIM_BOOLEAN:
return sizeof(int);
case CIM_SINT16:
case CIM_UINT16:
return sizeof(INT16);
case CIM_SINT32:
case CIM_UINT32:
return sizeof(INT32);
case CIM_SINT64:
case CIM_UINT64:
return sizeof(INT64);
case CIM_DATETIME:
case CIM_STRING:
return sizeof(WCHAR *);
default:
ERR("unhandled type %u\n", type);
break;
}
return sizeof(LONGLONG);
}
static UINT get_column_size( const struct table *table, UINT column )
{
return get_type_size( table->columns[column].type & COL_TYPE_MASK );
}
static UINT get_column_offset( const struct table *table, UINT column )
{
UINT i, offset = 0;
for (i = 0; i < column; i++) offset += get_column_size( table, i );
return offset;
}
static UINT get_row_size( const struct table *table )
{
return get_column_offset( table, table->num_cols - 1 ) + get_column_size( table, table->num_cols - 1 );
}
HRESULT get_value( const struct table *table, UINT row, UINT column, LONGLONG *val )
{
UINT col_offset, row_size;
const BYTE *ptr;
col_offset = get_column_offset( table, column );
row_size = get_row_size( table );
ptr = table->data + row * row_size + col_offset;
if (table->columns[column].type & CIM_FLAG_ARRAY)
{
*val = (INT_PTR)*(const void **)ptr;
return S_OK;
}
switch (table->columns[column].type & COL_TYPE_MASK)
{
case CIM_BOOLEAN:
*val = *(const int *)ptr;
break;
case CIM_DATETIME:
case CIM_STRING:
*val = (INT_PTR)*(const WCHAR **)ptr;
break;
case CIM_SINT16:
*val = *(const INT16 *)ptr;
break;
case CIM_UINT16:
*val = *(const UINT16 *)ptr;
break;
case CIM_SINT32:
*val = *(const INT32 *)ptr;
break;
case CIM_UINT32:
*val = *(const UINT32 *)ptr;
break;
case CIM_SINT64:
*val = *(const INT64 *)ptr;
break;
case CIM_UINT64:
*val = *(const UINT64 *)ptr;
break;
default:
ERR("invalid column type %u\n", table->columns[column].type & COL_TYPE_MASK);
*val = 0;
break;
}
return S_OK;
}
BSTR get_value_bstr( const struct table *table, UINT row, UINT column )
{
static const WCHAR fmt_signedW[] = {'%','d',0};
static const WCHAR fmt_unsignedW[] = {'%','u',0};
static const WCHAR fmt_signed64W[] = {'%','I','6','4','d',0};
static const WCHAR fmt_unsigned64W[] = {'%','I','6','4','u',0};
static const WCHAR fmt_strW[] = {'\"','%','s','\"',0};
static const WCHAR trueW[] = {'T','R','U','E',0};
static const WCHAR falseW[] = {'F','A','L','S','E',0};
LONGLONG val;
BSTR ret;
WCHAR number[22];
UINT len;
if (table->columns[column].type & CIM_FLAG_ARRAY)
{
FIXME("array to string conversion not handled\n");
return NULL;
}
if (get_value( table, row, column, &val ) != S_OK) return NULL;
switch (table->columns[column].type & COL_TYPE_MASK)
{
case CIM_BOOLEAN:
if (val) return SysAllocString( trueW );
else return SysAllocString( falseW );
case CIM_DATETIME:
case CIM_STRING:
if (!val) return NULL;
len = strlenW( (const WCHAR *)(INT_PTR)val ) + 2;
if (!(ret = SysAllocStringLen( NULL, len ))) return NULL;
sprintfW( ret, fmt_strW, (const WCHAR *)(INT_PTR)val );
return ret;
case CIM_SINT16:
case CIM_SINT32:
sprintfW( number, fmt_signedW, val );
return SysAllocString( number );
case CIM_UINT16:
case CIM_UINT32:
sprintfW( number, fmt_unsignedW, val );
return SysAllocString( number );
case CIM_SINT64:
wsprintfW( number, fmt_signed64W, val );
return SysAllocString( number );
case CIM_UINT64:
wsprintfW( number, fmt_unsigned64W, val );
return SysAllocString( number );
default:
FIXME("unhandled column type %u\n", table->columns[column].type & COL_TYPE_MASK);
break;
}
return NULL;
}
HRESULT set_value( const struct table *table, UINT row, UINT column, LONGLONG val,
CIMTYPE type )
{
UINT col_offset, row_size;
BYTE *ptr;
if ((table->columns[column].type & COL_TYPE_MASK) != type) return WBEM_E_TYPE_MISMATCH;
col_offset = get_column_offset( table, column );
row_size = get_row_size( table );
ptr = table->data + row * row_size + col_offset;
switch (table->columns[column].type & COL_TYPE_MASK)
{
case CIM_DATETIME:
case CIM_STRING:
*(WCHAR **)ptr = (WCHAR *)(INT_PTR)val;
break;
case CIM_SINT16:
*(INT16 *)ptr = val;
break;
case CIM_UINT16:
*(UINT16 *)ptr = val;
break;
case CIM_SINT32:
*(INT32 *)ptr = val;
break;
case CIM_UINT32:
*(UINT32 *)ptr = val;
break;
case CIM_SINT64:
*(INT64 *)ptr = val;
break;
case CIM_UINT64:
*(UINT64 *)ptr = val;
break;
default:
FIXME("unhandled column type %u\n", type);
return WBEM_E_FAILED;
}
return S_OK;
}
HRESULT get_method( const struct table *table, const WCHAR *name, class_method **func )
{
UINT i, j;
for (i = 0; i < table->num_rows; i++)
{
for (j = 0; j < table->num_cols; j++)
{
if (table->columns[j].type & COL_FLAG_METHOD && !strcmpW( table->columns[j].name, name ))
{
HRESULT hr;
LONGLONG val;
if ((hr = get_value( table, i, j, &val )) != S_OK) return hr;
*func = (class_method *)(INT_PTR)val;
return S_OK;
}
}
}
return WBEM_E_INVALID_METHOD;
}
static void clear_table( struct table *table )
{
UINT i, j, type;
LONGLONG val;
if (!table->data) return;
for (i = 0; i < table->num_rows; i++)
{
for (j = 0; j < table->num_cols; j++)
{
if (!(table->columns[j].type & COL_FLAG_DYNAMIC)) continue;
type = table->columns[j].type & COL_TYPE_MASK;
if (type == CIM_STRING || type == CIM_DATETIME || (type & CIM_FLAG_ARRAY))
{
if (get_value( table, i, j, &val ) == S_OK) heap_free( (void *)(INT_PTR)val );
}
}
}
if (table->fill)
{
table->num_rows = 0;
heap_free( table->data );
table->data = NULL;
}
}
void free_columns( struct column *columns, UINT num_cols )
{
UINT i;
for (i = 0; i < num_cols; i++)
{
heap_free( (WCHAR *)columns[i].name );
}
heap_free( columns );
}
void free_table( struct table *table )
{
if (!table) return;
clear_table( table );
if (table->flags & TABLE_FLAG_DYNAMIC)
{
TRACE("destroying %p\n", table);
heap_free( (WCHAR *)table->name );
free_columns( (struct column *)table->columns, table->num_cols );
list_remove( &table->entry );
heap_free( table );
}
}
void release_table( struct table *table )
{
if (!InterlockedDecrement( &table->refs )) free_table( table );
}
struct table *addref_table( struct table *table )
{
InterlockedIncrement( &table->refs );
return table;
}
struct table *grab_table( const WCHAR *name )
{
struct table *table;
LIST_FOR_EACH_ENTRY( table, table_list, struct table, entry )
{
if (!strcmpiW( table->name, name ))
{
if (table->fill && !table->data) table->fill( table );
TRACE("returning %p\n", table);
return addref_table( table );
}
}
return NULL;
}
struct table *create_table( const WCHAR *name, UINT num_cols, const struct column *columns,
UINT num_rows, BYTE *data, void (*fill)(struct table *) )
{
struct table *table;
if (!(table = heap_alloc( sizeof(*table) ))) return NULL;
table->name = heap_strdupW( name );
table->num_cols = num_cols;
table->columns = columns;
table->num_rows = num_rows;
table->data = data;
table->fill = fill;
table->flags = TABLE_FLAG_DYNAMIC;
table->refs = 0;
list_init( &table->entry );
return table;
}
BOOL add_table( struct table *table )
{
struct table *iter;
LIST_FOR_EACH_ENTRY( iter, table_list, struct table, entry )
{
if (!strcmpiW( iter->name, table->name ))
{
TRACE("table %s already exists\n", debugstr_w(table->name));
return FALSE;
}
}
list_add_tail( table_list, &table->entry );
TRACE("added %p\n", table);
return TRUE;
}
BSTR get_method_name( const WCHAR *class, UINT index )
{
struct table *table;
UINT i, count = 0;
BSTR ret;
if (!(table = grab_table( class ))) return NULL;
for (i = 0; i < table->num_cols; i++)
{
if (table->columns[i].type & COL_FLAG_METHOD)
{
if (index == count)
{
ret = SysAllocString( table->columns[i].name );
release_table( table );
return ret;
}
count++;
}
}
release_table( table );
return NULL;
}
BSTR get_property_name( const WCHAR *class, UINT index )
{
struct table *table;
UINT i, count = 0;
BSTR ret;
if (!(table = grab_table( class ))) return NULL;
for (i = 0; i < table->num_cols; i++)
{
if (!(table->columns[i].type & COL_FLAG_METHOD))
{
if (index == count)
{
ret = SysAllocString( table->columns[i].name );
release_table( table );
return ret;
}
count++;
}
}
release_table( table );
return NULL;
}
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