Config Class Reference

Configuration class. More...

#include <config.hpp>

Inheritance diagram for Config:

Collaboration diagram for Config:

Public Types
enum	LogLevel { NONE, NORMAL, DEBUG }

Public Member Functions
	Config (const fs::path &config_path, std::list< Tier > &tiers, const ConfigOverrides &config_overrides)
	Config (const fs::path &config_path, const ConfigOverrides &config_overrides)
size_t	copy_buff_sz (void) const
std::chrono::seconds	tier_period_s (void) const
bool	strict_period (void) const
fs::path	run_path (void) const
void	dump (const std::list< Tier > &tiers, std::stringstream &ss) const
Public Member Functions inherited from ffd::ConfigParser
	ConfigParser (std::string path)
	Construct a new Config Parser object. More...
std::string	dump_str (void) const
	Dump config to stdout as a string. More...
template<class T >
T	get (const std::string &key) const
	Get value from config map using ffd::get(). This can throw. Use this in a try...catch block. More...
template<class T >
T	get (const std::string &key, const T &fallback) const noexcept
	Try to get value from config, default to fallback if fails. Guaranteed no-throw. More...
template<class T >
T	get (const std::string &key, bool *fail_flag) const noexcept
	Try to get value from config. If ffd::get fails, return T() or 0 and set fail_flag. Guaranteed no-throw. Prints message to std::cerr to explain error. More...
template<class T >
T	get_from (const std::string &section, const std::string &key)
	Adapter for ffd::get(). Sets config_map_ptr_ to address of sub config with name section. This can throw. More...
template<class T >
T	get_from (const std::string &section, const std::string &key, const T &fallback) noexcept
	Get value from config subsection using ConfigParser::get(const std::string&,const T&) const noexcept, return fallback if the subsection DNE. More...
template<class T >
T	get_from (const std::string &section, const std::string &key, bool *fail_flag) noexcept
	Get value from config subsection using ConfigParser::get(const std::string&,bool*) const noexcept, set fail_flag if the subsection DNE. More...
Quota	get_quota (const std::string &key, const Bytes &max) const
	Get quota from config map using ffd::get(). This can throw. Use this in a try...catch block. More...
Quota	get_quota (const std::string &key, const Bytes &max, const Quota &fallback) const noexcept
	Try to get Quota from config, default to fallback if fails. Guaranteed no-throw. More...
Quota	get_quota (const std::string &key, const Bytes &max, bool *fail_flag) const noexcept
	Try to get Quota from config. If ffd::get fails, return Quota(void) and set fail_flag. Guaranteed no-throw. Prints message to std::cerr to explain error. More...
Quota	get_quota_from (const std::string &section, const std::string &key, const Bytes &max)
	Adapter for ffd::get(). Sets config_map_ptr_ to address of sub config with name section. This can throw. More...
Quota	get_quota_from (const std::string &section, const std::string &key, const Bytes &max, const Quota &fallback) noexcept
	Get value from config subsection using ConfigParser::get(const std::string&,const T&) const noexcept, return fallback if the subsection DNE. More...
Quota	get_quota_from (const std::string &section, const std::string &key, const Bytes &max, bool *fail_flag) noexcept
	Get value from config subsection using ConfigParser::get(const std::string&,bool*) const noexcept, set fail_flag if the subsection DNE. More...

Private Member Functions
void	load_config (const fs::path &config_path, std::list< Tier > &tiers, const ConfigOverrides &config_overrides)
	parse global and tier options, populate list of tiers More...

Private Attributes
Logger::log_level_t	log_level_
	value read from config file which may be overridden in main() by CLI flags [ –verbose | –quiet ] More...
size_t	copy_buff_sz_
	Size of buffer for copying a file from one tier to another. 1MiB default. More...
std::chrono::seconds	tier_period_s_
	Polling period to check whether to send new files in seconds. More...
bool	strict_period_
	If true, tiering only happens once per period; if false, writing into tier that is over quota will trigger file tiering. More...
fs::path	run_path_
	Path to database and FIFOs. Default location: /var/lib/autotier. More...

Additional Inherited Members
Protected Attributes inherited from ffd::ConfigParser
std::vector< ConfigNode * >	sub_confs_
	Vector of config subsections.
std::string	current_section_
	Name of current section, set by set_subsection()

Detailed Description

Configuration class.

Member Function Documentation

load_config()

void Config::load_config ( const fs::path &  config_path, std::list< Tier > &  tiers, const ConfigOverrides &  config_overrides  )

private

parse global and tier options, populate list of tiers

Parameters

config_path	Path to config file
tiers	List of tiers found in config
config_overrides	Overridden config values from CLI flags

Member Data Documentation

copy_buff_sz_

size_t Config::copy_buff_sz_

private

Size of buffer for copying a file from one tier to another. 1MiB default.

log_level_

Logger::log_level_t Config::log_level_

private

value read from config file which may be overridden in main() by CLI flags [ –verbose | –quiet ]

run_path_

fs::path Config::run_path_

private

Path to database and FIFOs. Default location: /var/lib/autotier.

strict_period_

bool Config::strict_period_

private

If true, tiering only happens once per period; if false, writing into tier that is over quota will trigger file tiering.

tier_period_s_

std::chrono::seconds Config::tier_period_s_

private

Polling period to check whether to send new files in seconds.

---

The documentation for this class was generated from the following files:

• src/incl/config.hpp
• src/impl/autotierfs/config.cpp