50931f27c7
export from the NSS shared library. Reviewed by Bob Relyea. Modified Files: nss/lib/certdb/certdb.c nss/lib/certdb/pcertdb.c nss/lib/nss/Makefile nss/lib/nss/manifest.mn nss/lib/nss/nss.def nss/lib/pk11wrap/pk11skey.c nss/lib/pkcs12/p12d.c nss/lib/pkcs12/p12e.c nss/lib/pkcs12/p12local.c nss/lib/pkcs7/certread.c nss/lib/pkcs7/p7decode.c nss/lib/pkcs7/p7encode.c nss/lib/smime/cmsutil.c nss/lib/softoken/secpkcs5.c nss/lib/ssl/ssl3con.c nss/lib/ssl/sslcon.c nss/lib/ssl/sslnonce.c nss/lib/ssl/sslsnce.c nss/lib/util/nsslocks.c Added Files: nss/lib/nss/nssrenam.h git-svn-id: svn://10.0.0.236/trunk@85774 18797224-902f-48f8-a5cc-f745e15eee43
106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/*
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* nsslocks.h - threadsafe functions to initialize lock pointers.
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*
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* NOTE - These are not public interfaces
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*
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* $Id: nsslocks.c,v 1.3 2001-01-30 21:02:28 wtc%netscape.com Exp $
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*/
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#include "seccomon.h"
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#include "nsslocks.h"
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#include "pratom.h"
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#include "prthread.h"
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/* Given the address of a (global) pointer to a PZLock,
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* atomicly create the lock and initialize the (global) pointer,
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* if it is not already created/initialized.
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*/
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SECStatus
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__nss_InitLock( PZLock **ppLock, nssILockType ltype )
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{
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static PRInt32 initializers;
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PORT_Assert( ppLock != NULL);
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/* atomically initialize the lock */
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while (!*ppLock) {
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PRInt32 myAttempt = PR_AtomicIncrement(&initializers);
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if (myAttempt == 1) {
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*ppLock = PZ_NewLock(ltype);
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(void) PR_AtomicDecrement(&initializers);
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break;
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}
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PR_Sleep(PR_INTERVAL_NO_WAIT); /* PR_Yield() */
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(void) PR_AtomicDecrement(&initializers);
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}
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return (*ppLock != NULL) ? SECSuccess : SECFailure;
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}
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SECStatus
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nss_InitLock( PZLock **ppLock, nssILockType ltype )
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{
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return __nss_InitLock(ppLock, ltype);
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}
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/* Given the address of a (global) pointer to a PZMonitor,
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* atomicly create the monitor and initialize the (global) pointer,
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* if it is not already created/initialized.
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*/
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SECStatus
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nss_InitMonitor(PZMonitor **ppMonitor, nssILockType ltype )
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{
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static PRInt32 initializers;
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PORT_Assert( ppMonitor != NULL);
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/* atomically initialize the lock */
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while (!*ppMonitor) {
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PRInt32 myAttempt = PR_AtomicIncrement(&initializers);
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if (myAttempt == 1) {
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*ppMonitor = PZ_NewMonitor(ltype);
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(void) PR_AtomicDecrement(&initializers);
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break;
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}
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PR_Sleep(PR_INTERVAL_NO_WAIT); /* PR_Yield() */
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(void) PR_AtomicDecrement(&initializers);
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}
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return (*ppMonitor != NULL) ? SECSuccess : SECFailure;
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}
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