164 lines
3.9 KiB
C++
164 lines
3.9 KiB
C++
#pragma once
|
|
#ifndef _NB_LOGGER
|
|
#define _NB_LOGGER
|
|
|
|
#include <atomic>
|
|
#include <chrono>
|
|
#include <ostream>
|
|
#include <thread>
|
|
#include <unordered_map>
|
|
#include <vector>
|
|
|
|
#include "Processes.hpp"
|
|
#include "ThreadSafeQueue.hpp"
|
|
|
|
|
|
namespace nb {
|
|
|
|
typedef std::chrono::time_point<
|
|
std::chrono::system_clock,
|
|
std::chrono::nanoseconds
|
|
> LoggerTimePoint;
|
|
|
|
struct LogEvent{
|
|
const LoggerTimePoint time;
|
|
const unsigned char lvl;
|
|
const std::string msg;
|
|
const std::thread::id tid;
|
|
const uint64_t pid;
|
|
};
|
|
|
|
typedef std::string (*LogProcessFunction)(const LoggerTimePoint&, const std::string&);
|
|
typedef std::unordered_map<uint8_t, LogProcessFunction> LogProcessFunctionMap;
|
|
|
|
template<typename LoggerName, typename ST=std::ostream>
|
|
class LoggerBase {
|
|
public:
|
|
using Type = LoggerName;
|
|
using StreamType = ST;
|
|
|
|
LoggerBase(StreamType& stream) : _ostreams({&stream}) {}
|
|
LoggerBase(const LoggerBase&) = delete;
|
|
LoggerBase(LoggerBase&&) = delete;
|
|
|
|
LoggerBase& operator=(const LoggerBase&) = delete;
|
|
|
|
~LoggerBase() {
|
|
stop();
|
|
}
|
|
|
|
bool isRunning() const noexcept {
|
|
return _running && bool(_runningThread);
|
|
}
|
|
|
|
unsigned int count() const {
|
|
return _queue.size();
|
|
}
|
|
|
|
bool run() {
|
|
if (!isRunning()) {
|
|
_running = true;
|
|
_runningThread = std::make_shared<std::thread>([&]{
|
|
auto this_type = static_cast<Type*>(this);
|
|
while(this_type->isRunning()) {
|
|
this_type->flush();
|
|
}
|
|
});
|
|
}
|
|
return isRunning();
|
|
}
|
|
|
|
bool stop() noexcept {
|
|
if (isRunning()) {
|
|
_running = false;
|
|
_runningThread->join();
|
|
_runningThread = nullptr;
|
|
flush();
|
|
}
|
|
return isRunning();
|
|
}
|
|
|
|
LogEvent pop() {
|
|
std::shared_ptr<LogEvent> event;
|
|
_queue.pop(event);
|
|
static_cast<Type*>(this)->process(*event);
|
|
return *event;
|
|
}
|
|
|
|
void flush() noexcept {
|
|
while(_queue.size()) {
|
|
pop();
|
|
}
|
|
}
|
|
|
|
void deleteAll() {
|
|
_queue.empty();
|
|
}
|
|
|
|
template <typename T>
|
|
void log(const T&, const uint8_t);
|
|
|
|
void log(const std::string& msg, const uint8_t& lvl) {
|
|
_queue.push(LogEvent{
|
|
std::chrono::system_clock::now(),
|
|
lvl,
|
|
msg,
|
|
std::this_thread::get_id(),
|
|
GetPID(),
|
|
});
|
|
}
|
|
|
|
template <size_t N>
|
|
void log(char const(&msg) [N], const uint8_t& lvl) {
|
|
static_cast<Type*>(this)->log(std::string(msg), lvl);
|
|
}
|
|
|
|
void log(const std::exception& err, const uint8_t& lvl) {
|
|
_queue.push(LogEvent{
|
|
std::chrono::system_clock::now(),
|
|
lvl,
|
|
err.what(),
|
|
std::this_thread::get_id(),
|
|
GetPID(),
|
|
});
|
|
}
|
|
|
|
void msg(const std::string& msg, const uint8_t& lvl=0x00) {
|
|
static_cast<Type*>(this)->log(msg, lvl);
|
|
}
|
|
|
|
void warn(const std::string& msg, const uint8_t& lvl=0x01) {
|
|
static_cast<Type*>(this)->log(msg, lvl);
|
|
}
|
|
void warn(const std::exception& err, const uint8_t lvl=0x01) {
|
|
static_cast<Type*>(this)->log(err, lvl);
|
|
}
|
|
|
|
void error(const std::string& msg, const uint8_t lvl=0xFF) {
|
|
static_cast<Type*>(this)->log(msg, lvl);
|
|
}
|
|
void error(const std::exception& err, const uint8_t lvl=0xFF) {
|
|
static_cast<Type*>(this)->log(err, lvl);
|
|
}
|
|
|
|
protected:
|
|
void process(const LogEvent&);
|
|
|
|
ThreadsafeQueue<LogEvent> _queue;
|
|
std::vector<StreamType*> const _ostreams;
|
|
std::atomic<bool> _running;
|
|
std::shared_ptr<std::thread> _runningThread = nullptr;
|
|
};
|
|
|
|
class BasicLogger : public LoggerBase<BasicLogger> {
|
|
public:
|
|
using Base = LoggerBase<BasicLogger>;
|
|
BasicLogger(std::ostream& stream) : Base(stream) {}
|
|
|
|
virtual void process(const LogEvent& event) {
|
|
*_ostreams[0] << event.msg << "\n";
|
|
}
|
|
};
|
|
|
|
} // namespace nb
|
|
#endif // _NB_LOGGER
|