  #include "selfdrive/common/util.h"
  #include "selfdrive/common/swaglog.h"
  #include "selfdrive/hardware/hw.h"
  
  const std::string DEFAULT_LOG_ROOT =
      Hardware::PC() ? util::getenv_default("HOME", "/.comma/media/0/realdata", "/data/media/0/realdata")
                     : "/data/media/0/realdata";
  
  const std::string LOG_ROOT = util::getenv_default("LOG_ROOT", "", DEFAULT_LOG_ROOT.c_str());
  
  #define LOGGER_MAX_HANDLES 16
  
  class BZFile {
   public:
 
</s> remove const int ROAD_CAMERA_ID = getenv("ROADCAM_ID") ? atoi(getenv("ROADCAM_ID")) : 1;
const int DRIVER_CAMERA_ID = getenv("DRIVERCAM_ID") ? atoi(getenv("DRIVERCAM_ID")) : 2;
 </s> add const int ROAD_CAMERA_ID = util::getenv("ROADCAM_ID", 1);
const int DRIVER_CAMERA_ID = util::getenv("DRIVERCAM_ID", 2); </s> remove const std::string default_params_path = Hardware::PC() ? util::getenv_default("HOME", "/.comma/params", "/data/params")
                                                       : "/data/params";
const std::string persistent_params_path = Hardware::PC() ? default_params_path : "/persist/comma/params";

 </s> add  </s> remove const std::string private_key_path =
    Hardware::PC() ? util::getenv_default("HOME", "/.comma/persist/comma/id_rsa", "/persist/comma/id_rsa")
                   : "/persist/comma/id_rsa";

 </s> add  </s> remove std::string getenv_default(const char* env_var, const char * suffix, const char* default_val) {
  const char* env_val = getenv(env_var);
  if (env_val != NULL) {
    return std::string(env_val) + std::string(suffix);
  } else {
    return std::string(default_val);
  }
 </s> add std::string getenv(const char* key, const char* default_val) {
  const char* val = ::getenv(key);
  return val ? val : default_val;
}

int getenv(const char* key, int default_val) {
  const char* val = ::getenv(key);
  return val ? atoi(val) : default_val;
}

float getenv(const char* key, float default_val) {
  const char* val = ::getenv(key);
  return val ? atof(val) : default_val;
const std::string LOG_ROOT = Path::log_root();
  #include "selfdrive/common/util.h"
  #include "selfdrive/common/swaglog.h"
  #include "selfdrive/hardware/hw.h"
  
const std::string LOG_ROOT = Path::log_root();
const std::string LOG_ROOT = Path::log_root();
const std::string LOG_ROOT = Path::log_root();
const std::string LOG_ROOT = Path::log_root();
const std::string LOG_ROOT = Path::log_root();
  
  #define LOGGER_MAX_HANDLES 16
  
  class BZFile {
   public:
keep keep keep keep replace replace replace replace replace keep keep keep keep keep
 hw.h: move Hardware-related paths to namespace Path (#21826)

* refactor getenv and path

* apply review 
selfdrive/loggerd/logger.h