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#pragma once
#include "StarThread.hpp"
#include "StarSet.hpp"
#include "StarString.hpp"
#include "StarPoly.hpp"
#include "StarBiMap.hpp"
#include "StarTime.hpp"
#include "StarFile.hpp"
namespace Star {
enum class LogLevel {
Debug,
Info,
Warn,
Error
};
extern EnumMap<LogLevel> const LogLevelNames;
STAR_CLASS(LogSink);
// A sink for Logger messages.
class LogSink {
public:
LogSink();
virtual ~LogSink();
virtual void log(char const* msg, LogLevel level) = 0;
void setLevel(LogLevel level);
LogLevel level();
private:
atomic<LogLevel> m_level;
};
class StdoutLogSink : public LogSink {
public:
virtual void log(char const* msg, LogLevel level);
private:
Mutex m_logMutex;
};
class FileLogSink : public LogSink {
public:
FileLogSink(String const& filename, LogLevel level, bool truncate);
virtual void log(char const* msg, LogLevel level);
private:
FilePtr m_output;
Mutex m_logMutex;
};
// A basic loging system that logs to multiple streams. Can log at Debug,
// Info, Warn, and Error logging levels. By default logs to stdout.
class Logger {
public:
static void addSink(LogSinkPtr s);
static void removeSink(LogSinkPtr s);
// Default LogSink that outputs to stdout.
static LogSinkPtr stdoutSink();
// Don't use the stdout sink.
static void removeStdoutSink();
static void log(LogLevel level, char const* msg);
template <typename... Args>
static void logf(LogLevel level, char const* msg, Args const&... args);
template <typename... Args>
static void debug(char const* msg, Args const&... args);
template <typename... Args>
static void info(char const* msg, Args const&... args);
template <typename... Args>
static void warn(char const* msg, Args const&... args);
template <typename... Args>
static void error(char const* msg, Args const&... args);
static bool loggable(LogLevel level);
static void refreshLoggable();
private:
static shared_ptr<StdoutLogSink> s_stdoutSink;
static HashSet<LogSinkPtr> s_sinks;
static Array<bool, 4> s_loggable;
static Mutex s_mutex;
};
// For logging data that is very high frequency. It is a map of debug values to
// be displayed every frame, or in a debug output window, etc.
class LogMap {
public:
static String getValue(String const& key);
static void setValue(String const& key, String const& value);
// Shorthand, converts given type to string using std::ostream.
template <typename T>
static void set(String const& key, T const& t);
static Map<String, String> getValues();
static void clear();
private:
static HashMap<String, String> s_logMap;
static Mutex s_logMapMutex;
};
// Logging for spatial data. Divided into multiple named coordinate spaces.
class SpatialLogger {
public:
// Maximum count of objects stored per space
static size_t const MaximumLines = 200000;
static size_t const MaximumPoints = 200000;
static size_t const MaximumText = 10000;
struct Line {
Vec2F begin;
Vec2F end;
Vec4B color;
};
struct Point {
Vec2F position;
Vec4B color;
};
struct LogText {
String text;
Vec2F position;
Vec4B color;
};
static void logPoly(char const* space, PolyF const& poly, Vec4B const& color);
static void logLine(char const* space, Line2F const& line, Vec4B const& color);
static void logLine(char const* space, Vec2F const& begin, Vec2F const& end, Vec4B const& color);
static void logPoint(char const* space, Vec2F const& position, Vec4B const& color);
static void logText(char const* space, String text, Vec2F const& position, Vec4B const& color);
static Deque<Line> getLines(char const* space, bool andClear);
static Deque<Point> getPoints(char const* space, bool andClear);
static Deque<LogText> getText(char const* space, bool andClear);
static void clear();
static bool observed();
static void setObserved(bool observed);
private:
static Mutex s_mutex;
static StringMap<Deque<Line>> s_lines;
static StringMap<Deque<Point>> s_points;
static StringMap<Deque<LogText>> s_logText;
static bool s_observed;
};
template <typename... Args>
void Logger::logf(LogLevel level, char const* msg, Args const&... args) {
if (loggable(level)) {
std::string output = strf(msg, args...);
MutexLocker locker(s_mutex);
for (auto const& l : s_sinks) {
if (l->level() <= level) {
l->log(output.c_str(), level);
}
}
}
}
template <typename... Args>
void Logger::debug(char const* msg, Args const&... args) {
logf(LogLevel::Debug, msg, args...);
}
template <typename... Args>
void Logger::info(char const* msg, Args const&... args) {
logf(LogLevel::Info, msg, args...);
}
template <typename... Args>
void Logger::warn(char const* msg, Args const&... args) {
logf(LogLevel::Warn, msg, args...);
}
template <typename... Args>
void Logger::error(char const* msg, Args const&... args) {
logf(LogLevel::Error, msg, args...);
}
template <typename T>
void LogMap::set(String const& key, T const& t) {
setValue(key, toString(t));
}
}
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