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timer.h
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timer.h
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is COID/comm module.
*
* The Initial Developer of the Original Code is
* Brano Kemen.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brano Kemen
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __COID_COMM_HPTIMER__HEADER_FILE__
#define __COID_COMM_HPTIMER__HEADER_FILE__
#include "namespace.h"
#include "commtypes.h"
COID_NAMESPACE_BEGIN
////////////////////////////////////////////////////////////////////////////////
class nsec_timer
{
static uint64 _freq;
static double _freqd;
uint64 _start;
int64 _dtns;
public:
nsec_timer();
/// @return elapsed time in seconds
double time();
/// @return elapsed time in nanoseconds
uint64 time_ns();
/// @return current time in nanoseconds
static uint64 current_time_ns();
/// @return time since local day start
static uint64 day_time_ns();
///Adjust returned time
void adjust_time_ns( int64 dtns ) {
_dtns += dtns;
}
int64 adjustment_ns() const { return _dtns; }
///Reset timer (sets current time as the base for elapsed time methods)
void reset();
};
////////////////////////////////////////////////////////////////////////////////
#ifdef SYSTYPE_WIN
extern "C" {
__declspec(dllimport) uint __stdcall timeBeginPeriod( uint );
__declspec(dllimport) uint __stdcall timeEndPeriod( uint );
__declspec(dllimport) ulong __stdcall timeGetTime();
}
#endif
class msec_timer
{
uint64 _tstart;
uint _period;
public:
msec_timer() { _tstart = 0; _period = 1000; }
~msec_timer() {}
void set_period_usec( uint usec ) { _period = usec; }
uint get_period_usec() const { return _period; }
#ifdef SYSTYPE_WIN
static void init() { timeBeginPeriod(1); }
static void term() { timeEndPeriod(1); }
#else
static void init() {}
static void term() {}
#endif
void reset();
void set( uint msec );
uint time() const;
uint time_usec() const;
uint time_reset();
uint ticks() const;
int usec_to_tick( uint k ) const;
/// return time in miliseconds
static uint get_time();
};
////////////////////////////////////////////////////////////////////////////////
COID_NAMESPACE_END
#define COID_TIME_POINT(name) uint64 ___timer_point_##name = coid::nsec_timer::current_time_ns()
#define COID_TIME_SINCE(name) \
float(double(coid::nsec_timer::current_time_ns() - ___timer_point_##name) * 1e-9)
#define COID_TIME_BETWEEN(name1, name2) \
float(fabs(double(int64(___timer_point_##name1 - ___timer_point_##name2)) * 1e-9))
#endif //#ifndef __COID_COMM_HPTIMER__HEADER_FILE__