diff options
Diffstat (limited to 'security/nss/lib/util/nsslocks.c')
| -rw-r--r-- | security/nss/lib/util/nsslocks.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/security/nss/lib/util/nsslocks.c b/security/nss/lib/util/nsslocks.c deleted file mode 100644 index deff7939c..000000000 --- a/security/nss/lib/util/nsslocks.c +++ /dev/null @@ -1,112 +0,0 @@ -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * 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 the Initial Developer are Copyright (C) 1994-2000 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -/* - * nsslocks.h - threadsafe functions to initialize lock pointers. - * - * NOTE - These are not public interfaces - * - * $Id$ - */ - -#include "seccomon.h" -#include "nsslocks.h" -#include "pratom.h" -#include "prthread.h" - -/* Given the address of a (global) pointer to a PZLock, - * atomicly create the lock and initialize the (global) pointer, - * if it is not already created/initialized. - */ - -SECStatus -__nss_InitLock( PZLock **ppLock, nssILockType ltype ) -{ - static PRInt32 initializers; - - PORT_Assert( ppLock != NULL); - - /* atomically initialize the lock */ - while (!*ppLock) { - PRInt32 myAttempt = PR_AtomicIncrement(&initializers); - if (myAttempt == 1) { - if (!*ppLock) { - *ppLock = PZ_NewLock(ltype); - } - (void) PR_AtomicDecrement(&initializers); - break; - } - PR_Sleep(PR_INTERVAL_NO_WAIT); /* PR_Yield() */ - (void) PR_AtomicDecrement(&initializers); - } - - return (*ppLock != NULL) ? SECSuccess : SECFailure; -} - -SECStatus -nss_InitLock( PZLock **ppLock, nssILockType ltype ) -{ - return __nss_InitLock(ppLock, ltype); -} - -/* Given the address of a (global) pointer to a PZMonitor, - * atomicly create the monitor and initialize the (global) pointer, - * if it is not already created/initialized. - */ - -SECStatus -nss_InitMonitor(PZMonitor **ppMonitor, nssILockType ltype ) -{ - static PRInt32 initializers; - - PORT_Assert( ppMonitor != NULL); - - /* atomically initialize the lock */ - while (!*ppMonitor) { - PRInt32 myAttempt = PR_AtomicIncrement(&initializers); - if (myAttempt == 1) { - if (!*ppMonitor) { - *ppMonitor = PZ_NewMonitor(ltype); - } - (void) PR_AtomicDecrement(&initializers); - break; - } - PR_Sleep(PR_INTERVAL_NO_WAIT); /* PR_Yield() */ - (void) PR_AtomicDecrement(&initializers); - } - - return (*ppMonitor != NULL) ? SECSuccess : SECFailure; -} |