| /*============================================================================= |
| Boost.Wave: A Standard compliant C++ preprocessor library |
| http://www.boost.org/ |
| |
| Copyright (c) 2001-2010 Hartmut Kaiser. Distributed under the Boost |
| Software License, Version 1.0. (See accompanying file |
| LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| =============================================================================*/ |
| |
| #if !defined(STOP_WATCH_HPP_HK040911_INCLUDED) |
| #define STOP_WATCH_HPP_HK040911_INCLUDED |
| |
| #include <boost/config.hpp> |
| #include <boost/timer.hpp> |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // |
| class stop_watch : public boost::timer { |
| |
| typedef boost::timer base_t; |
| |
| public: |
| stop_watch() : is_suspended_since(0), suspended_overall(0) {} |
| |
| void suspend() |
| { |
| if (0 == is_suspended_since) { |
| // if not already suspended |
| is_suspended_since = this->base_t::elapsed(); |
| } |
| } |
| void resume() |
| { |
| if (0 != is_suspended_since) { |
| // if really suspended |
| suspended_overall += this->base_t::elapsed() - is_suspended_since; |
| is_suspended_since = 0; |
| } |
| } |
| double elapsed() const |
| { |
| if (0 == is_suspended_since) { |
| // currently running |
| return this->base_t::elapsed() - suspended_overall; |
| } |
| |
| // currently suspended |
| BOOST_ASSERT(is_suspended_since >= suspended_overall); |
| return is_suspended_since - suspended_overall; |
| } |
| |
| std::string format_elapsed_time() const |
| { |
| double current = elapsed(); |
| char time_buffer[sizeof("1234:56:78.90 abcd.")+1]; |
| |
| using namespace std; |
| if (current >= 3600) { |
| // show hours |
| sprintf (time_buffer, "%d:%02d:%02d.%03d hrs.", |
| (int)(current) / 3600, ((int)(current) % 3600) / 60, |
| ((int)(current) % 3600) % 60, |
| (int)(current * 1000) % 1000); |
| } |
| else if (current >= 60) { |
| // show minutes |
| sprintf (time_buffer, "%d:%02d.%03d min.", |
| (int)(current) / 60, (int)(current) % 60, |
| (int)(current * 1000) % 1000); |
| } |
| else { |
| // show seconds |
| sprintf(time_buffer, "%d.%03d sec.", (int)current, |
| (int)(current * 1000) % 1000); |
| } |
| return time_buffer; |
| } |
| |
| private: |
| double is_suspended_since; |
| double suspended_overall; |
| }; |
| |
| #endif // !defined(STOP_WATCH_HPP_HK040911_INCLUDED) |