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/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2018 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
************************************************************************/
#include <cassert>
#include <fstream>
#include <iostream>
#include <sstream>
#ifndef _WIN32
#include <sys/time.h>
#endif
#include "Text.hh"
#include "compatibility.hh"
#include "global.hh"
#include "timing.hh"
using namespace std;
// Timing can be used outside of the scope of 'gGlobal'
bool gTimingSwitch;
int gTimingIndex;
double gStartTime[1024];
double gEndTime[1024];
ostream* gTimingLog = 0;
#ifndef _WIN32
double mysecond()
{
struct timeval tp;
struct timezone tzp;
gettimeofday(&tp, &tzp);
return ((double)tp.tv_sec + (double)tp.tv_usec * 1.e-6);
}
#else
double mysecond()
{
return 0;
}
#endif
void startTiming(const char* msg)
{
// timing
gTimingLog = (getenv("FAUST_TIMING")) ? new ofstream("FAUST_TIMING_LOG", ios::app) : NULL;
if (gTimingLog) {
*gTimingLog << endl;
}
if (gTimingSwitch) {
faustassert(gTimingIndex < 1023);
if (gTimingLog) {
tab(gTimingIndex, *gTimingLog);
*gTimingLog << "start " << msg << endl;
} else {
tab(gTimingIndex, cerr);
cerr << "start " << msg << endl;
}
gStartTime[gTimingIndex++] = mysecond();
}
}
void endTiming(const char* msg)
{
if (gTimingSwitch) {
faustassert(gTimingIndex > 0);
gEndTime[--gTimingIndex] = mysecond();
if (gTimingLog) {
*gTimingLog << msg << "\t" << gEndTime[gTimingIndex] - gStartTime[gTimingIndex] << endl;
gTimingLog->flush();
} else {
tab(gTimingIndex, cerr);
cerr << "end " << msg
<< " (duration : " << gEndTime[gTimingIndex] - gStartTime[gTimingIndex] << ")\n";
}
}
}
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