/usr/include/crystalspace-2.0/csutil/measuretime.h is in libcrystalspace-dev 2.0+dfsg-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /*
Copyright (C) 2004-2006 by Jorrit Tyberghein
(C) 2004-2006 by Frank Richter
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CS_CSUTIL_TIMEMEASURE_H__
#define __CS_CSUTIL_TIMEMEASURE_H__
/**\file
* Simple helper class to measure execution time of a block.
*/
#include "csutil/csstring.h"
#include "csutil/util.h"
#include "csutil/sysfunc.h"
namespace CS
{
/**
* \addtogroup util
* @{ */
/**
* Simple helper class to measure execution time of a block.
* When destructed, csPrintf()s the time that has passed between
* construction and destruction in microseconds.
*
* Use like:
* \code
* void Foo (int x)
* {
* CS::MeasureTime measureFoo ("Foo (%d) time", x);
*
* // ...
* }
* \endcode
* This will print the total execution time of Foo().
*/
class CS_CRYSTALSPACE_EXPORT MeasureTime
{
protected:
int64 offsetTime;
csString text;
void PrintTime (const char* prefix, int64 time, const char* suffix);
public:
/**
* Construct with a formatted description string.
*/
MeasureTime (const char* format, ...)
{
va_list args;
va_start (args, format);
text.FormatV (format, args);
va_end (args);
offsetTime = csGetMicroTicks ();
}
~MeasureTime ()
{
csTicks endTime = csGetMicroTicks ();
PrintTime ((text + ": ").GetData(), endTime - offsetTime,
" \xC2\xB5s\n");
}
/// Print an intermediate measurement.
void PrintIntermediate (const char* descr, ...)
{
int64 currentTime = csGetMicroTicks ();
csPrintf ("(%s)", text.GetData());
va_list args;
va_start (args, descr);
csPrintfV (descr, args);
va_end (args);
PrintTime (": ", currentTime - offsetTime, " \xC2\xB5s\n");
int64 currentTime2 = csGetMicroTicks ();
// Correct difference from printing
offsetTime += currentTime2 - currentTime;
}
};
/** @} */
} // namespace CS
#endif
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