non/nonlib/Block_Timer.H

60 lines
2.1 KiB
C++

/*******************************************************************************/
/* Copyright (C) 2010 Jonathan Moore Liles */
/* */
/* This program is free software; you can redistribute it and/or modify it */
/* under the terms of the GNU General Public License as published by the */
/* Free Software Foundation; either version 2 of the License, or (at your */
/* option) any later version. */
/* */
/* This program 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 General Public License for */
/* more details. */
/* */
/* You should have received a copy of the GNU General Public License along */
/* with This program; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#pragma once
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
class Block_Timer
{
unsigned long long ts;
const char *prefix;
unsigned long long tv_to_ts ( timeval *tv )
{
return tv->tv_sec * 1e6 + tv->tv_usec;
}
public:
Block_Timer ( const char *prefix )
{
this->prefix = prefix;
timeval tv;
gettimeofday( &tv, NULL );
ts = tv_to_ts( &tv );
}
~Block_Timer ( )
{
timeval tv;
gettimeofday( &tv, NULL );
fprintf( stderr, "[%Lfms] %s\n", ((long double)tv_to_ts( &tv ) - ts ) / 1000, prefix );
}
};