99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
/*
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* Copyright (C) 2006-2015 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2009 David Robillard <d@drobilla.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_cycle_timer_h__
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#define __ardour_cycle_timer_h__
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#include <string>
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#include <iostream>
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#include <cstdlib>
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#include "ardour/libardour_visibility.h"
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#include "ardour/cycles.h"
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#include "ardour/debug.h"
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float get_mhz ();
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class LIBARDOUR_API CycleTimer {
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private:
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static float cycles_per_usec;
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#ifndef NDEBUG
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cycles_t _entry;
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cycles_t _exit;
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std::string _name;
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#endif
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public:
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CycleTimer(const std::string& name) {
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#ifndef NDEBUG
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if (DEBUG_ENABLED (PBD::DEBUG::CycleTimers)) {
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_name = name;
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if (cycles_per_usec == 0) {
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cycles_per_usec = get_mhz ();
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}
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_entry = get_cycles();
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}
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#else
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(void) name;
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#endif
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}
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~CycleTimer() {
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#ifndef NDEBUG
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if (DEBUG_ENABLED (PBD::DEBUG::CycleTimers)) {
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_exit = get_cycles();
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std::cerr << _name << ": " << (float) (_exit - _entry) / cycles_per_usec << " (" << _entry << ", " << _exit << ')' << std::endl;
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}
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#endif
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}
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};
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class LIBARDOUR_API StoringTimer
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{
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public:
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StoringTimer (int);
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void ref ();
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void check (int);
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#ifndef NDEBUG
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void dump (std::string const &);
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#endif
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private:
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cycles_t _current_ref;
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int* _point;
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cycles_t* _value;
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cycles_t* _ref;
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int _points;
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int _max_points;
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};
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#ifdef PT_TIMING
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extern StoringTimer ST;
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#define PT_TIMING_REF ST.ref();
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#define PT_TIMING_CHECK(x) ST.check(x);
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#endif
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#ifndef PT_TIMING
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#define PT_TIMING_REF
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#define PT_TIMING_CHECK(x)
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#endif
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#endif /* __ardour_cycle_timer_h__ */
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