diff options
Diffstat (limited to 'security/nss/lib/ssl/sslmutex.h')
-rw-r--r-- | security/nss/lib/ssl/sslmutex.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/security/nss/lib/ssl/sslmutex.h b/security/nss/lib/ssl/sslmutex.h deleted file mode 100644 index 591498692..000000000 --- a/security/nss/lib/ssl/sslmutex.h +++ /dev/null @@ -1,126 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ -/* $Id$ */ -#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(NETBSD) -#include <sys/param.h> /* for __NetBSD_Version__ */ -#endif - -#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(BEOS) || defined(BSDI) || (defined(NETBSD) && __NetBSD_Version__ < 500000000) || 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); - -/* If processLocal is set to true, then just free resources which are *only* associated - * with the current process. Leave any shared resources (including the state of - * shared memory) intact. */ -extern SECStatus sslMutex_Destroy(sslMutex *sem, PRBool processLocal); - -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 |