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90 lines
3.3 KiB
90 lines
3.3 KiB
14 years ago
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/*==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/pnAsyncCore/Private/pnAcTimer.h
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*
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***/
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#ifdef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNASYNCCORE_PRIVATE_PNACTIMER_H
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#error "Header $/Plasma20/Sources/Plasma/NucleusLib/pnAsyncCore/Private/pnAcTimer.h included more than once"
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#endif
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#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNASYNCCORE_PRIVATE_PNACTIMER_H
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/*****************************************************************************
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*
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* Timer functions
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*
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* Timers are repeatedly called back at a scheduled interval. Not that all
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* timer procedures share the same thread, so timer procedures should:
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*
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* 1) Not be called too frequently
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* 2) Not take too long to run or block for a long time
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*
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***/
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struct AsyncTimer;
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// Return callbackMs to wait that long until next callback.
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// Return kAsyncTimeInfinite to stop callbacks (note: does not destroy Timer structure)
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typedef unsigned (* FAsyncTimerProc)(void * param);
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// 1) Timer procs do not get starved by I/O, they are called periodically.
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// 2) Timer procs will never be called by multiple threads simultaneously.
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void AsyncTimerCreate (
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AsyncTimer ** timer,
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FAsyncTimerProc timerProc,
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unsigned callbackMs,
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void * param = nil
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);
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// Timer procs can be in the process of getting called in
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// another thread during the unregister function -- be careful!
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// -- waitComplete = will wait until the timer has been unregistered and is
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// no longer in the process of being called before returning. The flag may only
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// be set by init/destruct threads, not I/O worker threads. In addition, extreme
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// care should be used to avoid a deadlock when this flag is set; in general, it
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// is a good idea not to hold any locks or critical sections when setting the flag.
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const unsigned kAsyncTimerDestroyWaitComplete = 1<<0;
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void AsyncTimerDelete (
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AsyncTimer * timer,
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unsigned flags = 0
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);
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void AsyncTimerDeleteCallback (
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AsyncTimer * timer,
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FAsyncTimerProc destroyProc
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);
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// To set the time value for a timer, use this function with flags = 0.
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// To set the time to MoreRecentOf(nextTimerCallbackMs, callbackMs), use SetPriorityHigher
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const unsigned kAsyncTimerUpdateSetPriorityHigher = 1<<0;
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void AsyncTimerUpdate (
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AsyncTimer * timer,
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unsigned callbackMs,
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unsigned flags = 0
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);
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