85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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http://www.boost.org/
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Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
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Software License, Version 1.0. (See accompanying file
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LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#if !defined(STOP_WATCH_HPP_HK040911_INCLUDED)
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#define STOP_WATCH_HPP_HK040911_INCLUDED
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#include <boost/config.hpp>
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#include <boost/timer.hpp>
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///////////////////////////////////////////////////////////////////////////////
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//
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class stop_watch : public boost::timer {
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typedef boost::timer base_t;
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public:
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stop_watch() : is_suspended_since(0), suspended_overall(0) {}
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void suspend()
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{
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if (0 == is_suspended_since) {
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// if not already suspended
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is_suspended_since = this->base_t::elapsed();
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}
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}
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void resume()
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{
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if (0 != is_suspended_since) {
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// if really suspended
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suspended_overall += this->base_t::elapsed() - is_suspended_since;
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is_suspended_since = 0;
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}
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}
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double elapsed() const
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{
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if (0 == is_suspended_since) {
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// currently running
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return this->base_t::elapsed() - suspended_overall;
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}
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// currently suspended
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BOOST_ASSERT(is_suspended_since >= suspended_overall);
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return is_suspended_since - suspended_overall;
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}
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std::string format_elapsed_time() const
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{
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double current = elapsed();
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char time_buffer[sizeof("1234:56:78.90 abcd.")+1];
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using namespace std;
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if (current >= 3600) {
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// show hours
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sprintf (time_buffer, "%d:%02d:%02d.%03d hrs.",
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(int)(current) / 3600, ((int)(current) % 3600) / 60,
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((int)(current) % 3600) % 60,
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(int)(current * 1000) % 1000);
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}
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else if (current >= 60) {
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// show minutes
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sprintf (time_buffer, "%d:%02d.%03d min.",
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(int)(current) / 60, (int)(current) % 60,
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(int)(current * 1000) % 1000);
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}
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else {
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// show seconds
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sprintf(time_buffer, "%d.%03d sec.", (int)current,
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(int)(current * 1000) % 1000);
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}
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return time_buffer;
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}
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private:
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double is_suspended_since;
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double suspended_overall;
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};
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#endif // !defined(STOP_WATCH_HPP_HK040911_INCLUDED)
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