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/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <iostream>
#include "sim_time.hh"
using namespace std;
namespace Time
{
struct _timeval
{
timeval tv;
};
double
convert(const timeval &tv)
{
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
}
Start::Start()
{
start = new _timeval;
::gettimeofday(&start->tv, NULL);
}
Start::~Start()
{
delete start;
}
const timeval &
Start::get() const
{
return start->tv;
}
double
Start::operator()() const
{
return convert(get());
}
Now::Now()
: now(0)
{
}
Now::~Now()
{
if (now)
delete now;
}
const timeval &
Now::get() const
{
if (!now)
now = new _timeval;
::gettimeofday(&now->tv, NULL);
return now->tv;
}
double
Now::operator()() const
{
return convert(get());
}
Elapsed::Elapsed()
: elapsed(0)
{}
Elapsed::~Elapsed()
{
if (elapsed)
delete elapsed;
}
const timeval &
Elapsed::get() const
{
if (!elapsed)
elapsed = new _timeval;
timersub(&now.get(), &start.get(), &elapsed->tv);
return elapsed->tv;
}
double
Elapsed::operator()() const
{
return convert(get());
}
Start start;
Now now;
Elapsed elapsed;
ostream &
operator<<(ostream &out, const Start &start)
{
out << ::ctime(&start.get().tv_sec);
return out;
}
ostream &
operator<<(ostream &out, const Now &now)
{
out << ::ctime(&now.get().tv_sec);
return out;
}
ostream &
operator<<(ostream &out, const Elapsed &elapsed)
{
out << ::ctime(&elapsed.get().tv_sec);
return out;
}
}
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