timer.h

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00001 /*
00002   Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization
00003   dedicated to making software imaging solutions freely available.
00004   
00005   You may not use this file except in compliance with the License.
00006   obtain a copy of the License at
00007   
00008     http://www.imagemagick.org/script/license.php
00009   
00010   Unless required by applicable law or agreed to in writing, software
00011   distributed under the License is distributed on an "AS IS" BASIS,
00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013   See the License for the specific language governing permissions and
00014   limitations under the License.
00015 
00016   MagickCore timer methods.
00017 */
00018 #ifndef _MAGICKCORE_TIMER_H
00019 #define _MAGICKCORE_TIMER_H
00020 
00021 #if defined(__cplusplus) || defined(c_plusplus)
00022 extern "C" {
00023 #endif
00024 
00025 typedef enum
00026 {
00027   UndefinedTimerState,
00028   StoppedTimerState,
00029   RunningTimerState
00030 } TimerState;
00031 
00032 typedef struct _Timer
00033 {
00034   double
00035     start,
00036     stop,
00037     total;
00038 } Timer;
00039 
00040 typedef struct _TimerInfo
00041 { 
00042   Timer
00043     user,
00044     elapsed;
00045   
00046   TimerState
00047     state;
00048   
00049   unsigned long
00050     signature;
00051 } TimerInfo;
00052 
00053 extern MagickExport double
00054   GetElapsedTime(TimerInfo *),
00055   GetUserTime(TimerInfo *);
00056 
00057 extern MagickExport MagickBooleanType
00058   ContinueTimer(TimerInfo *);
00059 
00060 extern MagickExport TimerInfo
00061   *AcquireTimerInfo(void),
00062   *DestroyTimerInfo(TimerInfo *);
00063 
00064 extern MagickExport void
00065   GetTimerInfo(TimerInfo *),
00066   ResetTimer(TimerInfo *),
00067   StartTimer(TimerInfo *,const MagickBooleanType);
00068 
00069 #if defined(__cplusplus) || defined(c_plusplus)
00070 }
00071 #endif
00072 
00073 #endif