QPSet64 Class Reference

Priority Set of up to 64 elements for building various schedulers, but also useful as a general set of up to 64 elements of any kind. More...

#include <qpset.h>

List of all members.

Public Member Functions
uint8_t	isEmpty (void) volatile
	the function evaluates to TRUE if the priority set is empty, which means that no active objects are ready to run.
uint8_t	notEmpty (void) volatile
	the function evaluates to TRUE if the priority set has elements, which means that some active objects are ready to run.
uint8_t	hasElement (uint8_t n) volatile
	the function evaluates to TRUE if the priority set has the element n.
void	insert (uint8_t n) volatile
	insert element n_ into the set, n_= 1..64
void	remove (uint8_t n) volatile
	remove element n_ from the set, n_= 1..64
uint8_t	findMax (void) volatile
	find the maximum element in the set,

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Detailed Description

Priority Set of up to 64 elements for building various schedulers, but also useful as a general set of up to 64 elements of any kind.

The priority set represents the set of active objects that are ready to run and need to be considered by scheduling processing. The set is capable of storing up to 64 priority levels.

The priority set allows to build cooperative multitasking schedulers to manage up to 64 tasks. It is also used in the Quantum Kernel (QK) preemptive scheduler.

Definition at line 104 of file qpset.h.

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Member Function Documentation

uint8_t QPSet64::findMax

(

void

)

volatile [inline]

find the maximum element in the set,

Note:

the set cannot be empty

Definition at line 170 of file qpset.h.

References Q_ROM_BYTE, and QF_log2Lkup.

Referenced by QF::run().

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

• qpset.h

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