1 /*
2 * dlls/rsaenh/handle.h
3 * Support code to manage HANDLE tables.
4 *
5 * Copyright 1998 Alexandre Julliard
6 * Copyright 2002-2004 Mike McCormack for CodeWeavers
7 * Copyright 2004 Michael Jung
8 *
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.
13 *
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.
18 *
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 #ifndef __WINE_HANDLE_H
25 #define __WINE_HANDLE_H
26
27 #include "wincrypt.h"
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #define TABLE_SIZE_INCREMENT 32
34
35 struct tagOBJECTHDR;
36 typedef struct tagOBJECTHDR OBJECTHDR;
37 typedef void (*DESTRUCTOR)(OBJECTHDR *object);
38 struct tagOBJECTHDR
39 {
40 DWORD dwType;
41 LONG refcount;
42 DESTRUCTOR destructor;
43 };
44
45 typedef struct tagHANDLETABLEENTRY
46 {
47 OBJECTHDR *pObject;
48 unsigned int iNextFree;
49 } HANDLETABLEENTRY;
50
51 typedef struct tagHANDLETABLE
52 {
53 unsigned int iEntries;
54 unsigned int iFirstFree;
55 HANDLETABLEENTRY *paEntries;
56 CRITICAL_SECTION mutex;
57 } HANDLETABLE;
58
59 int alloc_handle_table (HANDLETABLE **lplpTable);
60 void init_handle_table (HANDLETABLE *lpTable);
61 int release_handle_table(HANDLETABLE *lpTable);
62 void destroy_handle_table(HANDLETABLE *lpTable);
63 int release_handle (HANDLETABLE *lpTable, HCRYPTKEY handle, DWORD dwType);
64 int copy_handle (HANDLETABLE *lpTable, HCRYPTKEY handle, DWORD dwType, HCRYPTKEY *copy);
65 int lookup_handle (HANDLETABLE *lpTable, HCRYPTKEY handle, DWORD dwType, OBJECTHDR **lplpObject);
66 int is_valid_handle (HANDLETABLE *lpTable, HCRYPTKEY handle, DWORD dwType);
67
68 HCRYPTKEY new_object (HANDLETABLE *lpTable, size_t cbSize, DWORD dwType, DESTRUCTOR destructor,
69 OBJECTHDR **ppObject);
70
71 #ifdef __cplusplus
72 }
73 #endif
74
75 #endif /* __WINE_HANDLE_H */
76
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