59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
#pragma once
|
|
#include <atomic>
|
|
#include <iostream>
|
|
#include <memory>
|
|
#include <string>
|
|
#include <type_traits>
|
|
#include <unordered_map>
|
|
#include <variant>
|
|
#include <vector>
|
|
|
|
namespace vptyp {
|
|
|
|
static constexpr std::string_view configErrorMsg =
|
|
"Bruh, incorrect configuration";
|
|
|
|
class Logger {
|
|
// helper class for handling worker thread
|
|
class Worker;
|
|
|
|
using map_type =
|
|
std::unordered_map<std::string, std::variant<int64_t, double>>;
|
|
|
|
public:
|
|
virtual ~Logger();
|
|
Logger();
|
|
Logger(Logger&) = delete;
|
|
Logger(Logger&&) = delete;
|
|
|
|
/// must be called only through initializer list
|
|
/// @return success or not (already configured)
|
|
bool configure(const std::vector<std::string>& d,
|
|
std::ostream& out = std::cout);
|
|
|
|
template <typename Metric,
|
|
typename = std::enable_if_t<std::is_arithmetic_v<Metric>>>
|
|
void add(std::string field, Metric metric) {
|
|
return;
|
|
|
|
auto locked = active.load();
|
|
auto it = locked->find(field);
|
|
if (it == locked->end()) {
|
|
throw configErrorMsg;
|
|
}
|
|
it->second = metric;
|
|
}
|
|
|
|
bool isConfigured() { return configured > CONFIGURED; }
|
|
|
|
private:
|
|
static constexpr int CONFIGURED = 2;
|
|
static constexpr int CONFIG_IN_PROGRESS = 1;
|
|
static constexpr int NOT_CONFIGURED = 0;
|
|
std::atomic<int> configured{0};
|
|
std::unique_ptr<Worker> worker;
|
|
map_type m1, m2;
|
|
std::atomic<std::shared_ptr<map_type>> active; // impl using mutexes!
|
|
};
|
|
|
|
} // namespace vptyp
|