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Wine Cross Reference
wine/dlls/rsaenh/handle.h

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  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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