CarobNS::ControllerPinger Class Reference

Singleton (library-wide) class that manages the list of controllers suspected of failure. More...

#include <ControllerPinger.hpp>

List of all members.

Public Member Functions
void	suspectControllerOfFailure (ControllerInfo &controllerInfoPrm)
	Adds the given controller to the list of suspects.
bool	isSuspectedOfFailure (const ControllerInfo &controllerInfoPrm)
	Returns true if the specified controller is suspected of failure.
void	run ()
	Tries to connect to each suspected controller with a non-blocking connect and checks the connection state.
Static Public Member Functions
static ControllerPinger &	getInstance ()
	Singleton-access function: retrieves the existing or newly created instance of the ControllerPinger.
static int	getNumberOfFailures ()
	Gives the number of controller failures since this process started.

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Detailed Description

Singleton (library-wide) class that manages the list of controllers suspected of failure.

Used by controller pools, provides 3 main functions: one for adding a suspect in the list, one for knowing if a controller is already suspected, and on to update the list (ping the controllers to check if they are up again

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Member Function Documentation

void CarobNS::ControllerPinger::suspectControllerOfFailure

(

ControllerInfo &

controllerInfoPrm

)

Adds the given controller to the list of suspects.

The given controllerInfo argument will be *copied* in the suspected controllers list, but this function will modify the given controller info by setting its failure_number field

Parameters:

controllerInfoPrm

the controller suspected of failure

bool CarobNS::ControllerPinger::isSuspectedOfFailure

(

const ControllerInfo &

controllerInfoPrm

)

Returns true if the specified controller is suspected of failure.

Parameters:

controllerInfoPrm

the controller to check

Returns:

true if the controller is in the suspect list

void CarobNS::ControllerPinger::run

(

)

Tries to connect to each suspected controller with a non-blocking connect and checks the connection state.

In case of connection success, send the ping command and remove the controller from the suspect list.

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

• include/ControllerPinger.hpp

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