MCP23017::RefreshTimer Class Reference

This timer runs in the parent executor and upon every timeout it executes the update / polling of the IO expander. More...

Inheritance diagram for MCP23017::RefreshTimer:

Public Member Functions
	RefreshTimer (MCP23017 *parent)
long long	timeout () override
	Clients of timer should override this function.
Public Member Functions inherited from Timer
	Timer (ActiveTimers *timers)
	Constructor.
	~Timer ()
	Destructor.
void	run () override
	Callback from the executor when this timer is scheduled.
long long	schedule_time ()
void	start (long long period=-1)
	Starts a timer.
void	start_absolute (long long expiry_time_nsec)
	Starts the timer with an absolute deadline.
void	restart ()
	Restart a timer with the existing period but from the current time.
void	trigger ()
	This will wakeup the timer prematurely, immediately.
void	ensure_triggered ()
	Triggers the timer if it is not expired yet.
void	cancel ()
	Dangerous, do not call.
bool	is_triggered ()
void	set_triggered ()
	Sets the timer as if it was woken up by a trigger(), even if it was never started.
Public Member Functions inherited from Executable
void	test_deletion ()
void	notify () override
	Crashes the program – everyone who is expecting notify calls must override this function.
virtual void	alloc_result (QMember *item)
	Return the result of an alloc_async() from a memory Pool.
Public Member Functions inherited from QMember
void	init ()
	Initiailize a QMember, in place of a public placement construction.

Private Attributes
MCP23017 *	parent_

Additional Inherited Members
Public Types inherited from Timer
enum	{ NONE = 0 , RESTART = 1 , DELETE = -1 }
	Special return values from the timeout function. More...
Protected Member Functions inherited from Timer
void	update_period (long long period)
	Updates the period, to be used after the next expiration of the timer in order to restart it.
Protected Member Functions inherited from QMember
	QMember ()
	Constructor.
	~QMember ()
	Destructor.
Protected Attributes inherited from QMember
QMember *	next
	pointer to the next member in the queue

Detailed Description

This timer runs in the parent executor and upon every timeout it executes the update / polling of the IO expander.

Definition at line 228 of file MCP23017Gpio.hxx.

Constructor & Destructor Documentation

RefreshTimer()

MCP23017::RefreshTimer::RefreshTimer ( MCP23017 *  parent )

inline

Definition at line 231 of file MCP23017Gpio.hxx.

Member Function Documentation

timeout()

long long MCP23017::RefreshTimer::timeout ( )

inlineoverridevirtual

Clients of timer should override this function.

It will be called on the executor of the timer.

Returns

the new timer period, or one of the above special values.

Implements Timer.

Definition at line 237 of file MCP23017Gpio.hxx.

Member Data Documentation

parent_

MCP23017* MCP23017::RefreshTimer::parent_

private

Definition at line 245 of file MCP23017Gpio.hxx.

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

• MCP23017Gpio.hxx