diff options
Diffstat (limited to 'contrib/epee/include/math_helper.h')
| -rw-r--r-- | contrib/epee/include/math_helper.h | 205 |
1 files changed, 6 insertions, 199 deletions
diff --git a/contrib/epee/include/math_helper.h b/contrib/epee/include/math_helper.h index 6a759b515..00d695179 100644 --- a/contrib/epee/include/math_helper.h +++ b/contrib/epee/include/math_helper.h @@ -24,213 +24,20 @@ // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // - - - #pragma once +#include <cstdint> // uint64_t -#include <list> -#include <numeric> -#include <random> -#include <boost/timer/timer.hpp> -#include <boost/uuid/uuid.hpp> -#include <boost/uuid/random_generator.hpp> - -#include "syncobj.h" -#include "time_helper.h" +#ifdef _WIN32 +#include <sysinfoapi.h> // GetSystemTimeAsFileTime +#else +#include <sys/time.h> // gettimeofday +#endif namespace epee { namespace math_helper { - - template<typename val, int default_base> - class average - { - public: - - average() - { - m_base = default_base; - m_last_avg_val = 0; - } - - bool set_base() - { - CRITICAL_REGION_LOCAL(m_lock); - - m_base = default_base; - if(m_list.size() > m_base) - m_list.resize(m_base); - - return true; - } - - typedef val value_type; - - void push(const value_type& vl) - { - CRITICAL_REGION_LOCAL(m_lock); - -//#ifndef DEBUG_STUB - m_list.push_back(vl); - if(m_list.size() > m_base ) - m_list.pop_front(); -//#endif - } - - double update(const value_type& vl) - { - CRITICAL_REGION_LOCAL(m_lock); -//#ifndef DEBUG_STUB - push(vl); -//#endif - - return get_avg(); - } - - double get_avg() - { - CRITICAL_REGION_LOCAL(m_lock); - - value_type vl = std::accumulate(m_list.begin(), m_list.end(), value_type(0)); - if(m_list.size()) - return m_last_avg_val = (double)(vl/m_list.size()); - - return m_last_avg_val = (double)vl; - } - - value_type get_last_val() - { - CRITICAL_REGION_LOCAL(m_lock); - if(m_list.size()) - return m_list.back(); - - return 0; - } - - private: - unsigned int m_base; - double m_last_avg_val; - std::list<value_type> m_list; - critical_section m_lock; - }; - - -#ifdef WINDOWS_PLATFORM - - /************************************************************************/ - /* */ - /************************************************************************/ - class timing_guard_base - { - public: - virtual ~timing_guard_base(){}; - }; - - template<class T> - class timing_guard: public timing_guard_base - { - public: - timing_guard(T& avrg):m_avrg(avrg) - { - m_start_ticks = ::GetTickCount(); - } - - ~timing_guard() - { - m_avrg.push(::GetTickCount()-m_start_ticks); - } - - private: - T& m_avrg; - DWORD m_start_ticks; - }; - - template<class t_timing> - timing_guard_base* create_timing_guard(t_timing& timing){return new timing_guard<t_timing>(timing);} - -#define BEGIN_TIMING_ZONE(timing_var) { boost::shared_ptr<math_helper::timing_guard_base> local_timing_guard_ptr(math_helper::create_timing_guard(timing_var)); -#define END_TIMING_ZONE() } -#endif - -//#ifdef WINDOWS_PLATFORM_EX - template<uint64_t default_time_window> - class speed - { - public: - - speed() - { - m_time_window = default_time_window; - m_last_speed_value = 0; - } - bool chick() - { -#ifndef DEBUG_STUB - uint64_t ticks = misc_utils::get_tick_count(); - CRITICAL_REGION_BEGIN(m_lock); - m_chicks.push_back(ticks); - CRITICAL_REGION_END(); - //flush(ticks); -#endif - return true; - } - - bool chick(size_t count) - { - for(size_t s = 0; s != count; s++) - chick(); - - return true; - } - - - size_t get_speed() - { - flush(misc_utils::get_tick_count()); - return m_last_speed_value = m_chicks.size(); - } - private: - - bool flush(uint64_t ticks) - { - CRITICAL_REGION_BEGIN(m_lock); - std::list<uint64_t>::iterator it = m_chicks.begin(); - while(it != m_chicks.end()) - { - if(*it + m_time_window < ticks) - m_chicks.erase(it++); - else - break; - } - CRITICAL_REGION_END(); - return true; - } - - std::list<uint64_t> m_chicks; - uint64_t m_time_window; - size_t m_last_speed_value; - critical_section m_lock; - }; -//#endif - - template<class tlist> - void randomize_list(tlist& t_list) - { - for(typename tlist::iterator it = t_list.begin();it!=t_list.end();it++) - { - size_t offset = rand()%t_list.size(); - typename tlist::iterator it_2 = t_list.begin(); - for(size_t local_offset = 0;local_offset!=offset;local_offset++) - it_2++; - if(it_2 == it) - continue; - std::swap(*it_2, *it); - } - - } template<typename get_interval, bool start_immediate = true> class once_a_time { |