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118 lines
2.8 KiB
118 lines
2.8 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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/***************************************************************************** |
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* |
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* $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtSync.h |
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* |
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***/ |
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#ifdef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTSYNC_H |
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#error "Header $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtSync.h included more than once" |
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#endif |
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#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTSYNC_H |
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/**************************************************************************** |
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* |
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* Atomic operations |
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* |
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***/ |
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// *value += increment; return original value of *value; thread safe |
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long AtomicAdd (long * value, long increment); |
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// *value = value; return original value of *value; thread safe |
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long AtomicSet (long * value, long set); |
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#define ATOMIC_ONCE(code) { \ |
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static long s_count = 1; \ |
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if (AtomicSet(&s_count, 0)) \ |
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code; \ |
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} // |
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/**************************************************************************** |
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* |
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* CLock |
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* (reader/writer lock) |
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* |
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***/ |
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class CLockWaitSet; |
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class CLock { |
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private: |
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CLockWaitSet * m_waitSet; |
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long m_spinLock; |
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unsigned m_readerCount; |
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unsigned m_writerCount; |
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public: |
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CLock (); |
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~CLock (); |
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void EnterRead (); |
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void EnterWrite (); |
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void LeaveRead (); |
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void LeaveWrite (); |
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}; |
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/***************************************************************************** |
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* |
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* CEvent |
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* |
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***/ |
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#ifdef HS_BUILD_FOR_WIN32 |
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typedef HANDLE EventHandle; |
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#else |
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# error "CEvent: Not implemented on this platform" |
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#endif |
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const unsigned kEventWaitForever = (unsigned)-1; |
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enum ECEventResetBehavior { |
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kEventManualReset, |
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kEventAutoReset, |
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}; |
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class CEvent { |
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EventHandle m_handle; |
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public: |
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CEvent ( |
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ECEventResetBehavior resetType, |
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bool initialSet = false |
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); |
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~CEvent (); |
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void Signal (); |
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void Reset (); |
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bool Wait (unsigned waitMs); |
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const EventHandle & Handle () const { return m_handle; } |
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}; |
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