functions in the game for profiling slow dialogs

src/tools/SConscript

@@ -7,6 +7,7 @@ tools = Split("""
 	drawable_manager.cpp
 	keymods.cpp
 	replay.cpp
+	profile.cpp
 	winutil.cpp
 	prefs.cpp
 	../alchemy.cpp

src/tools/profile.cpp

@@ -0,0 +1,51 @@
+#include "profile.hpp"
+
+#include <vector>
+#include <map>
+#include <algorithm>
+#include <SFML/System/Clock.hpp>
+#include <SFML/System/Time.hpp>
+
+std::map<std::string, sf::Time> context_timers;
+std::vector<std::string> context_stack;
+sf::Clock current_context_timer;
+
+void start_profile(std::string context) {
+	if(!context_stack.empty()){
+		context_timers[context_stack.back()] += current_context_timer.restart();
+	}
+	if(context_timers.find(context) == context_timers.end()){
+		sf::Time context_timer;
+		context_timers[context] = context_timer;
+	}
+	context_stack.push_back(context);
+}
+
+void end_profile(std::string context) {
+	if(context_stack.back() != context){
+		throw std::string{"Tried to end profile context '"} + context + "' but the current context is '" + context_stack.back() + "'";
+	}
+
+	context_timers[context_stack.back()] += current_context_timer.restart();
+	context_stack.pop_back();
+}
+
+void clear_profile_info() {
+	context_timers.clear();
+	context_stack.clear();
+}
+
+bool compare_time(const std::pair<std::string, sf::Time>& a, const std::pair<std::string, sf::Time>& b) {
+	return a.second > b.second;
+}
+
+void print_profile_info() {
+	std::vector<std::pair<std::string, sf::Time>> sorted_times;
+	for(auto context : context_timers){
+		sorted_times.push_back(context);
+	}
+	std::sort(sorted_times.begin(), sorted_times.end(), compare_time);
+	for(auto context : sorted_times){
+		std::cout << context.first << ": " << context.second.asSeconds() << std::endl;
+	}
+}

src/tools/profile.hpp

@@ -0,0 +1,24 @@
+#ifndef PROFILE_GLOBAL_H
+#define PROFILE_GLOBAL_H
+
+#include <string>
+#include <boost/current_function.hpp>
+
+void start_profile(std::string context);
+void end_profile(std::string context);
+void clear_profile_info();
+void print_profile_info();
+
+struct profiler {
+	profiler(std::string context) : context(context) {
+		start_profile(context);
+	}
+	~profiler() {
+		end_profile(context);
+	}
+	std::string context;
+};
+
+#define PROFILE_FUNC profiler __profiler__(BOOST_CURRENT_FUNCTION)
+
+#endif