[692] | 1 | /*************************************************************************
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| 2 | * *
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| 3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. *
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| 4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org *
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| 5 | * *
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| 6 | * This library is free software; you can redistribute it and/or *
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| 7 | * modify it under the terms of EITHER: *
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| 8 | * (1) The GNU Lesser General Public License as published by the Free *
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| 9 | * Software Foundation; either version 2.1 of the License, or (at *
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| 10 | * your option) any later version. The text of the GNU Lesser *
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| 11 | * General Public License is included with this library in the *
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| 12 | * file LICENSE.TXT. *
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| 13 | * (2) The BSD-style license that is included with this library in *
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| 14 | * the file LICENSE-BSD.TXT. *
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| 15 | * *
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| 16 | * This library is distributed in the hope that it will be useful, *
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files *
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| 19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. *
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| 20 | * *
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| 21 | *************************************************************************/
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| 22 |
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| 23 | #ifndef _ODE_TIMER_H_
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| 24 | #define _ODE_TIMER_H_
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| 25 |
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| 26 | #include <ode/config.h>
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| 27 |
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| 28 | #ifdef __cplusplus
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| 29 | extern "C" {
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| 30 | #endif
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| 31 |
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| 32 |
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| 33 | /* stop watch objects */
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| 34 |
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| 35 | typedef struct dStopwatch {
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| 36 | double time; /* total clock count */
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| 37 | unsigned long cc[2]; /* clock count since last `start' */
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| 38 | } dStopwatch;
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| 39 |
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| 40 | void dStopwatchReset (dStopwatch *);
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| 41 | void dStopwatchStart (dStopwatch *);
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| 42 | void dStopwatchStop (dStopwatch *);
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| 43 | double dStopwatchTime (dStopwatch *); /* returns total time in secs */
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| 44 |
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| 45 |
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| 46 | /* code timers */
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| 47 |
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| 48 | void dTimerStart (const char *description); /* pass a static string here */
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| 49 | void dTimerNow (const char *description); /* pass a static string here */
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| 50 | void dTimerEnd();
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| 51 |
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| 52 | /* print out a timer report. if `average' is nonzero, print out the average
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| 53 | * time for each slot (this is only meaningful if the same start-now-end
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| 54 | * calls are being made repeatedly.
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| 55 | */
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| 56 | void dTimerReport (FILE *fout, int average);
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| 57 |
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| 58 |
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| 59 | /* resolution */
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| 60 |
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| 61 | /* returns the timer ticks per second implied by the timing hardware or API.
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| 62 | * the actual timer resolution may not be this great.
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| 63 | */
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| 64 | double dTimerTicksPerSecond();
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| 65 |
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| 66 | /* returns an estimate of the actual timer resolution, in seconds. this may
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| 67 | * be greater than 1/ticks_per_second.
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| 68 | */
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| 69 | double dTimerResolution();
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| 70 |
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| 71 |
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| 72 | #ifdef __cplusplus
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| 73 | }
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| 74 | #endif
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| 75 |
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| 76 | #endif
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