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- /*=============================================================================
- Boost.Wave: A Standard compliant C++ preprocessor library
- http://www.boost.org/
- Copyright (c) 2001-2012 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)
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