The root Dobby object, runs the dbus loop. More...

#include <Dobby.h>

Public Types
enum	LogTarget : unsigned { Console = 0x1 , SysLog = 0x2 , EthanLog = 0x4 , Journald = 0x8 }

Public Member Functions
	Dobby (const std::string &dbusAddress, const std::shared_ptr< AI_IPC::IIpcService > &ipcService, const std::shared_ptr< const IDobbySettings > &settings)

void	run () const
	Issues a 'ready' signal over dbus and then blocks until either a shutdown request is received or SIGTERM.

void	setDefaultAIDbusAddresses (const std::string &aiPrivateBusAddress, const std::string &aiPublicBusAddress)
	Debugging function for manually setting the AI dbus addresses. More...

Static Public Member Functions
static void	configSignals ()
	Utility function that MUST be called at startup from the main thread before any other threads are spawned. More...

static void	setupLogging (unsigned targets=LogTarget::Console)
	Static method must be called early in the startup before object is instantiated. More...

Private Member Functions
	DOBBY_DBUS_METHOD (ping)

	DOBBY_DBUS_METHOD (shutdown)

	DOBBY_DBUS_METHOD (setLogMethod)

	DOBBY_DBUS_METHOD (setLogLevel)

	DOBBY_DBUS_METHOD (setAIDbusAddress)

	DOBBY_DBUS_METHOD (startFromSpec)

	DOBBY_DBUS_METHOD (startFromBundle)

	DOBBY_DBUS_METHOD (stop)

	DOBBY_DBUS_METHOD (pause)

	DOBBY_DBUS_METHOD (resume)

	DOBBY_DBUS_METHOD (hibernate)

	DOBBY_DBUS_METHOD (wakeup)

	DOBBY_DBUS_METHOD (exec)

	DOBBY_DBUS_METHOD (list)

	DOBBY_DBUS_METHOD (getState)

	DOBBY_DBUS_METHOD (getInfo)

	DOBBY_DBUS_METHOD (getOCIConfig)

void	initIpcMethods ()
	Installs handlers for all the dbus/ipc methods.

void	onContainerStarted (int32_t cd, const ContainerId &id)
	Called by the DobbyManager code when a container has started. More...

void	onContainerStopped (int32_t cd, const ContainerId &id, int status)
	Called by the DobbyManager code when a container has stopped. More...

void	onContainerHibernated (int32_t cd, const ContainerId &id)
	Called by the DobbyManager code when a container gets hibernated. More...

void	onContainerAwoken (int32_t cd, const ContainerId &id)
	Called by the DobbyManager code when a container returns back from hibernated. More...

void	runWorkQueue () const
	Runs the Dobby work queue to handle API calls.

Static Private Member Functions
static void	nullSigChildHandler (int sigNum, siginfo_t info, void context)
	Signal handler that does nothing. More...

static void	sigTermHandler (int sigNum)
	Signal handler for SIGTERM.

static void	logPrinter (int level, const char file, const char func, int line, const char *message)
	Logging callback, called every time a log message needs to be emitted. More...

static void	logConsolePrinter (int level, const char file, const char func, int line, const char *message)
	Writes logging output to the console. More...

Private Attributes
std::shared_ptr< DobbyEnv >	mEnvironment

std::shared_ptr< DobbyUtils >	mUtilities

std::shared_ptr< DobbyIPCUtils >	mIPCUtilities

std::shared_ptr< DobbyManager >	mManager

std::unique_ptr< DobbyWorkQueue >	mWorkQueue

const std::shared_ptr< AI_IPC::IIpcService >	mIpcService

const std::string	mService

const std::string	mObjectPath

std::list< std::string >	mHandlers

std::atomic< bool >	mShutdown

int	mWatchdogTimerId

Static Private Attributes
static volatile sig_atomic_t	mSigTerm = 0

static std::atomic< unsigned >	mLogTargets
	The target for logging, can be dynamically changed via dbus.

static int	mEthanLogPipeFd = -1

Detailed Description

The root Dobby object, runs the dbus loop.

Member Function Documentation

◆ configSignals()

void Dobby::configSignals ( )

static

Utility function that MUST be called at startup from the main thread before any other threads are spawned.

This is needed to fix a bunch of quirks relating to how signals are handled, in particular the SIGCHLD signal.

◆ logConsolePrinter()

void Dobby::logConsolePrinter	(	int	level,
		const char *	file,
		const char *	func,
		int	line,
		const char *	message
	)

staticprivate

Writes logging output to the console.

This duplicates code in the Logging component, but unfortunately we can't use the function there without messing up the API for all other things that use it.

◆ logPrinter()

void Dobby::logPrinter	(	int	level,
		const char *	file,
		const char *	func,
		int	line,
		const char *	message
	)

staticprivate

Logging callback, called every time a log message needs to be emitted.

Depending on the log method, this will either send the message to syslog or the ethanlog library.

Note that this function is called after any processing in the Logger component, meaning that you can still print log messages on the console by using the AI_LOG_CHANNELS env var.

◆ nullSigChildHandler()

void Dobby::nullSigChildHandler	(	int	sigNum,
		siginfo_t *	info,
		void *	context
	)

staticprivate

Signal handler that does nothing.

This is needed to ensure SIGCHLD signals are actually delivered and detected by sigwaitinfo

◆ onContainerAwoken()

void Dobby::onContainerAwoken	(	int32_t	cd,
		const ContainerId &	id
	)

private

Called by the DobbyManager code when a container returns back from hibernated.

Parameters

[in]	cd	The container unique descriptor.
[in]	id	The string id / name of the container.

◆ onContainerHibernated()

void Dobby::onContainerHibernated	(	int32_t	cd,
		const ContainerId &	id
	)

private

Called by the DobbyManager code when a container gets hibernated.

Parameters

[in]	cd	The container unique descriptor.
[in]	id	The string id / name of the container.

◆ onContainerStarted()

void Dobby::onContainerStarted	(	int32_t	cd,
		const ContainerId &	id
	)

private

Called by the DobbyManager code when a container has started.

This is typically called from DobbyManager in response to a DobbyManager::onPostStartHook, so just beware it's recursive from the dbus thread POV.

Parameters

[in]	cd	The container unique descriptor.
[in]	id	The string id / name of the container.

◆ onContainerStopped()

void Dobby::onContainerStopped	(	int32_t	cd,
		const ContainerId &	id,
		int	status
	)

private

Called by the DobbyManager code when a container has stopped.

This is typically called from an internal thread in the DobbyManager so be careful of any threading issues.

Parameters

[in]	cd	The container unique descriptor.
[in]	id	The string id / name of the container.
[in]	status	The status result of the container's runc process.

◆ setDefaultAIDbusAddresses()

void Dobby::setDefaultAIDbusAddresses	(	const std::string &	aiPrivateBusAddress,
		const std::string &	aiPublicBusAddress
	)

Debugging function for manually setting the AI dbus addresses.

Parameters

[in]	aiPrivateBusAddress	The AI private dbus address
[in]	aiPublicBusAddress	The AI public dbus address

◆ setupLogging()

void Dobby::setupLogging ( unsigned targets = LogTarget::Console )

static

Static method must be called early in the startup before object is instantiated.

If the function detects the ETHAN_LOGGING_PIPE env var then it sets the default logging method to 'ethan log', otherwise it defaults to syslog.

Member Data Documentation

◆ mEthanLogPipeFd

int Dobby::mEthanLogPipeFd = -1

staticprivate

The fd of the ethan logging pipe, starts off pointing to /dev/null but can changed dynamically via dbus

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

daemon/lib/include/Dobby.h
daemon/lib/source/Dobby.cpp

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Function Documentation

◆ configSignals()

◆ logConsolePrinter()

◆ logPrinter()

◆ nullSigChildHandler()

◆ onContainerAwoken()

◆ onContainerHibernated()

◆ onContainerStarted()

◆ onContainerStopped()

◆ setDefaultAIDbusAddresses()

◆ setupLogging()

Member Data Documentation

◆ mEthanLogPipeFd