swimtracker-firmware/firmware/lib/logging/Logger.h

113 lines
2.6 KiB
C++

#pragma once
#include "TimeAbstraction.h"
#ifdef PLATFORM_ESP32
#include "Arduino.h"
#endif
#ifdef PLATFORM_NATIVE
#include <stdint.h>
#include <string.h>
#include <utility>
#include <stdio.h>
#endif
#define LOG_INFO(...) \
{ \
Logger::getInstance()->log(__VA_ARGS__); \
}
#define LOG_TRACE(...) \
{ \
Logger::getInstance()->log(__VA_ARGS__); \
}
#define LOG_WARNING(...) \
{ \
Logger::getInstance()->log(__VA_ARGS__); \
}
class Logger
{
public:
using TimeT = unsigned long;
~Logger();
template <class... Args>
inline bool log(const char *formatStr, Args &&...args)
{
const TimeT time = millis();
if (totalSize_ - currentSize_ <= sizeof(time))
return false;
memcpy(&data_[currentSize_], &time, sizeof(time));
currentSize_ += sizeof(time);
const auto spaceLeft = totalSize_ - currentSize_;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-security"
auto charsWritten = snprintf(&data_[currentSize_], spaceLeft, formatStr,
std::forward<Args>(args)...);
#pragma GCC diagnostic pop
//Serial.println(&data_[currentSize_]);
if(charsWritten > 0)
{
currentSize_ += charsWritten + 1; // + 1 for trailing zero
return true;
}
else
return false;
}
static Logger *getInstance();
static void init();
const size_t totalSize() const { return totalSize_; }
const size_t currentSize() const { return currentSize_; }
const char * data() const { return data_; }
// Iteration
class iterator
{
public:
using TimeT = unsigned long;
iterator(const char * ptr) : current_position_(ptr) {}
TimeT time_millis() const {
return *reinterpret_cast<const TimeT*>(current_position_);
}
const char * message() const {
return current_position_ + sizeof(TimeT);
}
void operator++(){
current_position_ += sizeof(TimeT) + strlen(message()) + 1;
}
bool operator==(const iterator & o) const { return current_position_ == o.current_position_; }
bool operator!=(const iterator & o) const { return current_position_ != o.current_position_; }
private:
const char * current_position_;
};
iterator begin() const { return {data_}; }
iterator end() const { return {data_ + currentSize_}; }
private:
Logger();
char *data_;
size_t totalSize_;
size_t currentSize_;
};