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File: [Pegasus] / pegasus / src / Pegasus / Common / Attic / SpinLock_HPUX_PARISC_ACC.h
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Revision: 1.2, Thu Nov 3 02:26:06 2005 UTC (18 years, 8 months ago) by mike Branch: MAIN CVS Tags: BUG_4225_PERFORMANCE_VERSION_1_DONE Changes since 1.1: +4 -2 lines BUG#: 4353 TITLE: SpinLock DESCRIPTION: Fixed to use pthread_mutex_t on PARISC rather than Mutex. |
//%2005//////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; // IBM Corp.; EMC Corporation, The Open Group. // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; // EMC Corporation; VERITAS Software Corporation; The Open Group. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Mike Brasher, Inova Europe (mike-brasher@austin.rr.com) // //%///////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_SpinLock_HPUX_PARISC_ACC_h #define Pegasus_SpinLock_HPUX_PARISC_ACC_h #include <Pegasus/Common/Config.h> #include <pthread.h> #include <sched.h> #include <errno.h> #define PEGASUS_SPINLOCK_USE_PTHREADS PEGASUS_NAMESPACE_BEGIN // This type implements a spinlock. It is deliberately not a class since we // wish to avoid automatic construction/destruction. struct SpinLock { pthread_mutexattr_t attr; pthread_mutex_t mutex; Uint32 initialized; }; inline void SpinLockCreate(SpinLock& x) { pthread_mutexattr_init(&x.attr); pthread_mutexattr_setspin_np(&x.attr, PTHREAD_MUTEX_SPINONLY_NP); pthread_mutex_init(&x.mutex, &x.attr); x.initialized = 1; } inline void SpinLockDestroy(SpinLock& x) { while (pthread_mutex_destroy(&x.mutex) == EBUSY) sched_yield(); pthread_mutexattr_destroy(&x.attr); } inline void SpinLockLock(SpinLock& x) { pthread_mutex_lock(&x.mutex); } inline void SpinLockUnlock(SpinLock& x) { pthread_mutex_unlock(&x.mutex); } PEGASUS_NAMESPACE_END #endif /* Pegasus_SpinLock_HPUX_PARISC_ACC_h */
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