edge/common/params.h

72 lines
1.9 KiB
C++

#pragma once
#include <future>
#include <map>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
#include "common/queue.h"
enum ParamKeyType {
PERSISTENT = 0x02,
CLEAR_ON_MANAGER_START = 0x04,
CLEAR_ON_ONROAD_TRANSITION = 0x08,
CLEAR_ON_OFFROAD_TRANSITION = 0x10,
DONT_LOG = 0x20,
DEVELOPMENT_ONLY = 0x40,
BACKUP = 0x80,
ALL = 0xFFFFFFFF
};
class Params {
public:
explicit Params(const std::string &path = {});
~Params();
// Not copyable.
Params(const Params&) = delete;
Params& operator=(const Params&) = delete;
std::vector<std::string> allKeys() const;
bool checkKey(const std::string &key);
ParamKeyType getKeyType(const std::string &key);
inline std::string getParamPath(const std::string &key = {}) {
return params_path + params_prefix + (key.empty() ? "" : "/" + key);
}
// Delete a value
int remove(const std::string &key);
void clearAll(ParamKeyType type);
// helpers for reading values
std::string get(const std::string &key, bool block = false);
inline bool getBool(const std::string &key, bool block = false) {
return get(key, block) == "1";
}
std::map<std::string, std::string> readAll();
// helpers for writing values
int put(const char *key, const char *val, size_t value_size);
inline int put(const std::string &key, const std::string &val) {
return put(key.c_str(), val.data(), val.size());
}
inline int putBool(const std::string &key, bool val) {
return put(key.c_str(), val ? "1" : "0", 1);
}
void putNonBlocking(const std::string &key, const std::string &val);
inline void putBoolNonBlocking(const std::string &key, bool val) {
putNonBlocking(key, val ? "1" : "0");
}
private:
void asyncWriteThread();
std::string params_path;
std::string params_prefix;
// for nonblocking write
std::future<void> future;
SafeQueue<std::pair<std::string, std::string>> queue;
};