TierEngine component for dealing with the rocksdb database. More...

#include <database.hpp>

Inheritance diagram for TierEngineDatabase:

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Collaboration diagram for TierEngineDatabase:

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Public Member Functions
	TierEngineDatabase (const fs::path &config_path, const ConfigOverrides &config_overrides)
	Construct a new Tier Engine Database object Calls open_db(). More...

	~TierEngineDatabase (void)
	Destroy the Tier Engine Database object Deletes (closes) the rocksdb database. More...

std::shared_ptr< rocksdb::DB >	get_db (void)
	Get the database pointer. Used in fusePassthrough.cpp for getting file. More...

Public Member Functions inherited from TierEngineBase
	TierEngineBase (const fs::path &config_path, const ConfigOverrides &config_overrides)
	Construct a new Tier Engine Base object. More...

virtual	~TierEngineBase (void)
	Destroy the Tier Engine Base object. More...

int	create_run_path (void) const
	Creates path for FIFOs and database, chowning to root:autotier. More...

std::list< Tier > &	get_tiers (void)
	Get reference to the list of tiers.Used in fusePassthrough.cpp to get references to each tier for finding full backend paths. More...

Tier *	tier_lookup (fs::path p)
	Find Tier from path. More...

Tier *	tier_lookup (std::string id)
	Find tier from ID. More...

void	mount_point (const fs::path &mount_point)
	Set the mount_point_ variable. More...

virtual bool	tier (void)
	Virtual tier function to allow other components to call TierEngineTiering::tier(). More...

virtual bool	currently_tiering (void) const

Private Member Functions
void	open_db (void)
	Opens RocksDB database. Calls TierEngineTiering::exit() (virtual TierEngineBase method) if it fails. More...

Additional Inherited Members
Protected Member Functions inherited from TierEngineBase
virtual void	exit (int status) const
	Virtual exit function that can be overridden by other components for cleanup. More...

Protected Attributes inherited from TierEngineBase
bool	stop_flag_
	Set to false to make thread exit. Used to continue or cancel sleeping after being woken to do ad hoc command work. More...

std::list< Tier >	tiers_
	List of tiers built from configuration file.

Config	config_
	Configuration read from config_file path.

fs::path	run_path_
	Path to mutex lock file, ad hoc FIFO, and database. Defaults to /var/lib/autotier/<hash of config path>, can be overridden in config.

fs::path	mount_point_
	Where autotier filesystem is mounted, set by mount_point().

ConcurrentQueue< AdHoc >	adhoc_work_

std::condition_variable	sleep_cv_
	Condition variable to use wait_until to sleep between tiering, used for the ad hoc server thread or the main thread to wake the tiering thread from sleep. More...

std::shared_ptr< rocksdb::DB >	db_
	Nosql database holding file metadata.

Detailed Description

TierEngine component for dealing with the rocksdb database.

Constructor & Destructor Documentation

TierEngineDatabase::TierEngineDatabase	(	const fs::path &	config_path,
		const ConfigOverrides &	config_overrides
	)

Construct a new Tier Engine Database object Calls open_db().

Parameters

config_path
config_overrides

TierEngineDatabase::~TierEngineDatabase ( void )

Destroy the Tier Engine Database object Deletes (closes) the rocksdb database.

std::shared_ptr< rocksdb::DB > TierEngineDatabase::get_db ( void )

Get the database pointer. Used in fusePassthrough.cpp for getting file.

void TierEngineDatabase::open_db ( void )

private

Opens RocksDB database. Calls TierEngineTiering::exit() (virtual TierEngineBase method) if it fails.

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