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/*
* 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;
}
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