trantor::TimingWheel Class Reference

This class implements a timer strategy with high performance and low accuracy. This is usually used internally. More...

#include <trantor/utils/TimingWheel.h>

Classes
class	CallbackEntry

Public Member Functions
	TimingWheel (trantor::EventLoop *loop, size_t maxTimeout, float ticksInterval=TIMING_TICK_INTERVAL, size_t bucketsNumPerWheel=TIMING_BUCKET_NUM_PER_WHEEL)
	Construct a new timing wheel instance.
void	insertEntry (size_t delay, EntryPtr entryPtr)
void	insertEntryInloop (size_t delay, EntryPtr entryPtr)
EventLoop *	getLoop ()

Detailed Description

This class implements a timer strategy with high performance and low accuracy. This is usually used internally.

Constructor & Destructor Documentation

TimingWheel()

trantor::TimingWheel::TimingWheel	(	trantor::EventLoop *	loop,
		size_t	maxTimeout,
		float	ticksInterval = TIMING_TICK_INTERVAL,
		size_t	bucketsNumPerWheel = TIMING_BUCKET_NUM_PER_WHEEL )

Construct a new timing wheel instance.

Parameters

loop	The event loop in which the timing wheel runs.
maxTimeout	The maximum timeout of the timing wheel.
ticksInterval	The internal timer tick interval. It affects the accuracy of the timing wheel.
bucketsNumPerWheel	The number of buckets per wheel.

Note

The max delay of the timing wheel is about ticksInterval*(bucketsNumPerWheel^wheelsNum) seconds.

Example: Four wheels with 200 buckets per wheel means the timing wheel can work with a timeout up to 200^4 seconds, about 50 years;

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

• trantor/utils/TimingWheel.h