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161 lines
3.7 KiB
161 lines
3.7 KiB
#ifndef LOGGER_HPP_INCLUDED
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#define LOGGER_HPP_INCLUDED
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#include <cstdio>
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#include <iostream>
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#include <stack>
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#include <map>
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#include <cassert>
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#include <boost/date_time/posix_time/posix_time.hpp>
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extern int verbose;
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#define LogDebug(s, ...) \
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if ( verbose >= 3 ) printf(s, ##__VA_ARGS__);
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#define LogMoreInfo(s, ...) \
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if ( verbose >= 2 ) printf(s, ##__VA_ARGS__);
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#define LogInfo(s, ...) \
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if ( verbose >= 1 ) printf(s, ##__VA_ARGS__);
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#define LogError(s, ...) \
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if ( verbose >= 0 ) { printf("%s, %s(), %d: ", __FILE__, __func__, __LINE__); printf(s, ##__VA_ARGS__); }
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/*
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Imported from Astrant:
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Questions/Suggestions mail nick@astrant.net
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*/
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struct Logger {
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Logger(std::ostream& logging_stream_, std::string prefix_ = std::string(""))
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: logging_stream(&logging_stream_)
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, prefix(prefix_)
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{}
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void log(std::string what){
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*logging_stream << get_prefix() << "(" << what << ") took place at (" << boost::posix_time::microsec_clock::local_time() << std::endl;
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}
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void start(std::string what){
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Event e;
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e.start = boost::posix_time::microsec_clock::local_time();
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e.name = what;
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EventMap::iterator it = event_map.find(what);
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if(it != event_map.end()){
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*logging_stream << get_prefix() << "WARNING: Overwriting event(" << e.name << "), did you forget to call stop()?";
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} else {
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event_name_stack.push(what);
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}
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event_map.insert(it, std::make_pair(what, e));
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}
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void stop() {
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assert(!event_name_stack.empty());
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stop(event_name_stack.top());
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}
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private:
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void stop(std::string what){
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EventMap::iterator it = event_map.find(what);
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if(it == event_map.end()){
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*logging_stream << get_prefix() << "WARNING: No such, or already stopped, event(" << what << "), did you forget to call start()?";
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} else {
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it->second.end = boost::posix_time::microsec_clock::local_time();
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log_event(it->second);
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event_map.erase(it);
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}
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event_name_stack.pop();
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}
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struct Event {
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boost::posix_time::ptime start;
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boost::posix_time::ptime end;
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std::string name;
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};
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// A map containing strings -> Event, used by start() and stop()
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typedef std::map<std::string, Event> EventMap;
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EventMap event_map;
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// A stack used by 0-parameter stop() to stop the last start()ed event.
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std::stack<std::string> event_name_stack;
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std::ostream* logging_stream;
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std::string prefix;
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void log_event(Event const& e){
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*logging_stream << get_prefix() << "Event(" << e.name << ") started at (" << e.start << ") ended at (" << e.end << ") duration (" << e.end - e.start << " ms) " << std::endl;
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}
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std::string get_prefix() const {
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if(prefix == std::string("")){
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return prefix;
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} else {
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return prefix + ": ";
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}
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}
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};
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/*
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My progressbar class (as seen on github)
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*/
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struct Progressbar {
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Progressbar(std::ostream & out, std::string prefix = "", std::string begin = "", std::string end = "")
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: out(out)
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, begin(begin)
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, prefix(prefix)
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, end(end)
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{
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if (begin != "") {
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out << begin << std::endl;
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}
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show(0, 1, ' ');
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}
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~Progressbar(){
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show(1, 1, '=');
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if (end != "") {
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out << "\n" << end << std::endl;
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} else {
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out << std::endl;
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}
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}
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template <typename T>
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void show(T const & progress, T const & max, char delim = '>'){
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out << "\r";
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size_t width = 80; // default terminal size :D
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width -= prefix.size();
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width -= 3; // [, > and ]
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if (prefix != "") {
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width -= 1;
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out << prefix << ' ';
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}
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double ratio = (double) progress / (double) max;
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size_t length = width * ratio;
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std::string fill(length, '=');
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std::string empty(width - length, ' ');
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out << '[' << fill << delim << empty << ']' << std::flush;
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}
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private:
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std::ostream & out;
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std::string begin;
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std::string prefix;
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std::string end;
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};
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#endif // LOGGER_HPP_INCLUDED
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