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Diffstat (limited to 'security/nss/lib/ssl/sslmutex.h')
-rw-r--r-- | security/nss/lib/ssl/sslmutex.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/security/nss/lib/ssl/sslmutex.h b/security/nss/lib/ssl/sslmutex.h deleted file mode 100644 index 645b6c5bd..000000000 --- a/security/nss/lib/ssl/sslmutex.h +++ /dev/null @@ -1,151 +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) 2001 - * 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 ***** */ -/* $Id$ */ -#ifndef __SSLMUTEX_H_ -#define __SSLMUTEX_H_ 1 - -/* What SSL really wants is portable process-shared unnamed mutexes in - * shared memory, that have the property that if the process that holds - * them dies, they are released automatically, and that (unlike fcntl - * record locking) lock to the thread, not to the process. - * NSPR doesn't provide that. - * Windows has mutexes that meet that description, but they're not portable. - * POSIX mutexes are not automatically released when the holder dies, - * and other processes/threads cannot release the mutex on behalf of the - * dead holder. - * POSIX semaphores can be used to accomplish this on systems that implement - * process-shared unnamed POSIX semaphores, because a watchdog thread can - * discover and release semaphores that were held by a dead process. - * On systems that do not support process-shared POSIX unnamed semaphores, - * they can be emulated using pipes. - * The performance cost of doing that is not yet measured. - * - * So, this API looks a lot like POSIX pthread mutexes. - */ - -#include "prtypes.h" -#include "prlock.h" - -#if defined(WIN32) - -#include <wtypes.h> - -typedef struct -{ - PRBool isMultiProcess; -#ifdef WINNT - /* on WINNT we need both the PRLock and the Win32 mutex for fibers */ - struct { -#else - union { -#endif - PRLock* sslLock; - HANDLE sslMutx; - } u; -} sslMutex; - -typedef int sslPID; - -#elif defined(LINUX) || defined(AIX) || defined(VMS) || defined(BEOS) || defined(BSDI) || defined(NETBSD) || defined(OPENBSD) - -#include <sys/types.h> -#include "prtypes.h" - -typedef struct { - PRBool isMultiProcess; - union { - PRLock* sslLock; - struct { - int mPipes[3]; - PRInt32 nWaiters; - } pipeStr; - } u; -} sslMutex; -typedef pid_t sslPID; - -#elif defined(XP_UNIX) /* other types of Unix */ - -#include <sys/types.h> /* for pid_t */ -#include <semaphore.h> /* for sem_t, and sem_* functions */ - -typedef struct -{ - PRBool isMultiProcess; - union { - PRLock* sslLock; - sem_t sem; - } u; -} sslMutex; - -typedef pid_t sslPID; - -#else - -/* what platform is this ?? */ - -typedef struct { - PRBool isMultiProcess; - union { - PRLock* sslLock; - /* include cross-process locking mechanism here */ - } u; -} sslMutex; - -typedef int sslPID; - -#endif - -#include "seccomon.h" - -SEC_BEGIN_PROTOS - -extern SECStatus sslMutex_Init(sslMutex *sem, int shared); - -extern SECStatus sslMutex_Destroy(sslMutex *sem); - -extern SECStatus sslMutex_Unlock(sslMutex *sem); - -extern SECStatus sslMutex_Lock(sslMutex *sem); - -#ifdef WINNT - -extern SECStatus sslMutex_2LevelInit(sslMutex *sem); - -#endif - -SEC_END_PROTOS - -#endif |