fmutex.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:3k
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- #include "fmutex.h"
- #include "fpkmem.h"
- #include <stdio.h>
- typedef struct PKMutexFunctions {
- CK_CREATEMUTEX CreateMutex;
- CK_DESTROYMUTEX DestroyMutex;
- CK_LOCKMUTEX LockMutex;
- CK_UNLOCKMUTEX UnlockMutex;
- int useMutex;
- } PKMutexFunctions;
- static PKMutexFunctions gMutex = {NULL, NULL, NULL, NULL, 0};
- static int gInit = 0;
- #define FMUTEX_CHECKS()
- if (gInit == 0) {
- return CKR_GENERAL_ERROR;
- }
- if (!gMutex.useMutex) {
- return CKR_GENERAL_ERROR;
- }
- CK_RV FMUTEX_Init(CK_C_INITIALIZE_ARGS_PTR pArgs) {
- if (gInit != 0) {
- return CKR_GENERAL_ERROR;
- }
- if (pArgs && pArgs->CreateMutex && pArgs->DestroyMutex &&
- pArgs->LockMutex && pArgs->UnlockMutex) {
- gMutex.CreateMutex = pArgs->CreateMutex;
- gMutex.DestroyMutex = pArgs->DestroyMutex;
- gMutex.LockMutex = pArgs->LockMutex;
- gMutex.UnlockMutex = pArgs->UnlockMutex;
- gMutex.useMutex = 1;
- gInit = 1;
- } else {
- gInit = 0;
- return CKR_GENERAL_ERROR;
- }
-
- return CKR_OK;
- }
- CK_RV FMUTEX_Create(CK_VOID_PTR_PTR pMutex) {
- CK_RV rv;
- FMUTEX_CHECKS()
- rv = gMutex.CreateMutex(pMutex);
- return rv;
- }
- CK_RV FMUTEX_Destroy(CK_VOID_PTR pMutex) {
- CK_RV rv;
- FMUTEX_CHECKS()
- rv = gMutex.DestroyMutex(pMutex);
- return rv;
- }
- CK_RV FMUTEX_Lock(CK_VOID_PTR pMutex) {
- CK_RV rv;
- FMUTEX_CHECKS()
- rv = gMutex.LockMutex(pMutex);
- return rv;
- }
- CK_RV FMUTEX_Unlock(CK_VOID_PTR pMutex) {
- CK_RV rv;
- FMUTEX_CHECKS()
- rv = gMutex.UnlockMutex(pMutex);
- return rv;
- }
- int FMUTEX_MutexEnabled (void) {
- return gMutex.useMutex;
- }