3 * Support code to manage HANDLE tables.
5 * Copyright 1998 Alexandre Julliard
6 * Copyright 2002-2004 Mike McCormack for CodeWeavers
7 * Copyright 2004 Michael Jung
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #ifndef __WINE_HANDLE_H
25 #define __WINE_HANDLE_H
31 #define TABLE_SIZE_INCREMENT 32
34 typedef struct tagOBJECTHDR OBJECTHDR;
35 typedef void (*DESTRUCTOR)(OBJECTHDR *object);
40 DESTRUCTOR destructor;
43 typedef struct tagHANDLETABLEENTRY
46 unsigned int iNextFree;
49 typedef struct tagHANDLETABLE
51 unsigned int iEntries;
52 unsigned int iFirstFree;
53 HANDLETABLEENTRY *paEntries;
54 CRITICAL_SECTION mutex;
57 int alloc_handle_table (HANDLETABLE **lplpTable);
58 void init_handle_table (HANDLETABLE *lpTable);
59 void release_all_handles (HANDLETABLE *lpTable);
60 int release_handle_table(HANDLETABLE *lpTable);
61 void destroy_handle_table(HANDLETABLE *lpTable);
62 int alloc_handle (HANDLETABLE *lpTable, OBJECTHDR *lpObject, unsigned int *lpHandle);
63 int release_handle (HANDLETABLE *lpTable, unsigned int handle, DWORD dwType);
64 int copy_handle (HANDLETABLE *lpTable, unsigned int handle, DWORD dwType, unsigned int *copy);
65 int lookup_handle (HANDLETABLE *lpTable, unsigned int handle, DWORD dwType, OBJECTHDR **lplpObject);
66 int is_valid_handle (HANDLETABLE *lpTable, unsigned int handle, DWORD dwType);
68 unsigned int new_object (HANDLETABLE *lpTable, size_t cbSize, DWORD dwType, DESTRUCTOR destructor,
69 OBJECTHDR **ppObject);
75 #endif /* __WINE_HANDLE_H */