diff options
Diffstat (limited to 'source4/lib/appweb/ejs-2.0/mpr/mprLock.c')
| -rw-r--r-- | source4/lib/appweb/ejs-2.0/mpr/mprLock.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/source4/lib/appweb/ejs-2.0/mpr/mprLock.c b/source4/lib/appweb/ejs-2.0/mpr/mprLock.c deleted file mode 100644 index df9ce276d4..0000000000 --- a/source4/lib/appweb/ejs-2.0/mpr/mprLock.c +++ /dev/null @@ -1,266 +0,0 @@ -/** - * @file mprThread.c - * @brief Mbedthis Portable Runtime Base Thread Locking Support - */ - -/* - * @copy default - * - * Copyright (c) Mbedthis Software LLC, 2003-2006. All Rights Reserved. - * - * This software is distributed under commercial and open source licenses. - * You may use the GPL open source license described below or you may acquire - * a commercial license from Mbedthis Software. You agree to be fully bound - * by the terms of either license. Consult the LICENSE.TXT distributed with - * this software for full details. - * - * This software is open source; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See the GNU General Public License for more - * details at: http://www.mbedthis.com/downloads/gplLicense.html - * - * This program is distributed WITHOUT ANY WARRANTY; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * This GPL license does NOT permit incorporating this software into - * proprietary programs. If you are unable to comply with the GPL, you must - * acquire a commercial license to use this software. Commercial licenses - * for this software and support services are available from Mbedthis - * Software at http://www.mbedthis.com - * - * @end - */ - -#include "mpr.h" - -#if BLD_FEATURE_MULTITHREAD -/************************************ Code ************************************/ - -void mprInitThreads(MprApp *app) -{ - mprAssert(app); - - if (app->globalLock == 0) { - app->globalLock = mprCreateLock(app); - app->allocLock = mprCreateLock(app); - } -} - -/******************************************************************************/ - -void mprTermThreads(MprApp *app) -{ - mprAssert(app); - - if (app->globalLock) { - mprDestroyLock(app->globalLock); - app->globalLock = 0; - } - if (app->allocLock) { - MprLock *lock = app->allocLock; - app->allocLock = 0; - mprDestroyLock(lock); - } -} - -/******************************************************************************/ - -MprLock *mprCreateLock(MprCtx ctx) -{ - MprLock *lock; - - mprAssert(ctx); - - lock = mprAllocType(ctx, MprLock); - -#if BLD_HOST_UNIX - pthread_mutexattr_t attr; - - pthread_mutexattr_init(&attr); - pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP); - pthread_mutex_init(&lock->cs, &attr); - pthread_mutexattr_destroy(&attr); -#elif WIN - InitializeCriticalSectionAndSpinCount(&lock->cs, 5000); -#elif VXWORKS - lock->cs = semMCreate(SEM_Q_PRIORITY | SEM_DELETE_SAFE | - SEM_INVERSION_SAFE); - if (lock->cs == 0) { - mprAssert(0); - mprFree(lock); - return 0; - } -#endif - return lock; -} - -/******************************************************************************/ -/* - * Destroy a lock. Must be locked on entrance. - */ - -void mprDestroyLock(MprLock *lock) -{ - mprAssert(lock); - if (lock == 0) { - return; - } - -#if BLD_HOST_UNIX - pthread_mutex_unlock(&lock->cs); - pthread_mutex_destroy(&lock->cs); -#elif WIN - DeleteCriticalSection(&lock->cs); -#elif VXWORKS - semDelete(lock->cs); -#endif - mprFree(lock); -} - -/******************************************************************************/ -/* - * Lock a mutex - */ - -void mprLock(MprLock *lock) -{ - /* - * OPT -- Do this just so we can allocate MprApp before we have created its - * lock. Should remove this test here and in mprUnlock. - */ - if (lock == 0) { - return; - } - -#if BLD_HOST_UNIX - pthread_mutex_lock(&lock->cs); -#elif WIN - EnterCriticalSection(&lock->cs); -#elif VXWORKS - semTake(lock->cs, WAIT_FOREVER); -#endif -} - -/******************************************************************************/ -/* - * Try to attain a lock. Do not block! - */ - -int mprTryLock(MprLock *lock) -{ - mprAssert(lock); - -#if BLD_HOST_UNIX - { - int err; - - if ((err = pthread_mutex_trylock(&lock->cs)) != 0) { - if (err == EBUSY) { - return MPR_ERR_BUSY; - } else { - return MPR_ERR_CANT_ACCESS; - } - } - return 0; - } -#elif WIN - if (TryEnterCriticalSection(&lock->cs) == 0) { - return MPR_ERR_BUSY; - } -#elif VXWORKS - { - int rc; - - rc = semTake(cs, NO_WAIT); - if (rc == -1) { - mprAssert(0); - } - if (rc == S_objLib_OBJ_UNAVAILABLE) { - return MPR_ERR_BUSY; - } else { - return MPR_ERR_CANT_ACCESS; - } - /* Success */ - return 0; - } -#endif - return 0; -} - -/******************************************************************************/ -/* - * Unlock. - */ - -void mprUnlock(MprLock *lock) -{ - if (lock == 0) { - return; - } - -#if BLD_HOST_UNIX - pthread_mutex_unlock(&lock->cs); -#elif WIN - LeaveCriticalSection(&lock->cs); -#elif VXWORKS - semGive(lock->cs); -#endif -} - -/******************************************************************************/ -/* - * Big global lock. Avoid using this. - */ - -void mprGlobalLock(MprCtx ctx) -{ - MprApp *app; - - app = mprGetApp(ctx); - mprAssert(app); - - if (app && app->globalLock) { - mprLock(app->globalLock); - } -} - -/******************************************************************************/ - -void mprGlobalUnlock(MprCtx ctx) -{ - MprApp *app; - - app = mprGetApp(ctx); - mprAssert(app); - - if (app && app->globalLock) { - mprUnlock(app->globalLock); - } -} - -/******************************************************************************/ - -int mprGetCurrentThreadID() -{ -#if BLD_HOST_UNIX - return (int) pthread_self(); -#elif WIN - return GetCurrentThreadId(); -#elif VXWORKS - return (int) pthread_self(); -#endif -} - -/******************************************************************************/ -#endif /* BLD_FEATURE_MULTITHREAD */ - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim:tw=78 - * vim600: sw=4 ts=4 fdm=marker - * vim<600: sw=4 ts=4 - */ |