Queue< T, queueLength > Class Template Reference

Queue Wrapper. More...

#include <QueueCPP.h>

Inheritance diagram for Queue< T, queueLength >:

Collaboration diagram for Queue< T, queueLength >:

Public Member Functions
	Queue (char const *name=0)
	Constructor.
bool	add (T const &item, TickType_t time=portMAX_DELAY)
	add an item at end of the Queue.
bool	add_ISR (T const &item, portBASE_TYPE &waswoken)
	add an item at end of the Queue.
unsigned	available () const
	Return number of spaces available in Queue.
bool	empty ()
	Check if Queue is Empty.
bool	empty_ISR ()
	Is Queue Empty.
bool	full ()
	Check if Queue is Full.
bool	full_ISR ()
	Is Queue Full.
bool	peek (T &var, TickType_t time=0)
	Look at the first item in the Queue.
bool	peek_ISR (T &var, portBASE_TYPE &waswoken)
	Look at the first item in the Queue.
bool	pop (T &var, TickType_t time=portMAX_DELAY)
	Get an item from the Queue.
bool	pop_ISR (T &var, portBASE_TYPE &waswoken)
	Get an item from the Queue.
bool	push (T const &item, TickType_t time=portMAX_DELAY)
	Push an item onto the Queue.
bool	push_ISR (T const &item, portBASE_TYPE &waswoken)
	Push an item onto the Queue.
void	reset ()
	Reset the Queue.
unsigned	waiting () const
	Get number of items in the Queue.
unsigned	waiting_ISR ()
	Get number of message waiting.

Protected Attributes
QueueHandle_t	queueHandle

Detailed Description

template<class T, unsigned queueLength>
class Queue< T, queueLength >

Queue Wrapper.

Note, is a template on the type of object to place on the queue, which makes the Queue more typesafe.

Template Parameters

T	The type of object to be placed on the queue. Note also, this type needs to be trivially copyable, and preferably a POD as the FreeRTOS queue code will copy it with memcpy().
queuelength	The number of elements to reserve space for in the queue. If 0 (which is the default value) then length will be provided to the constructor dynamically.

Todo

add Overwrite operation

add QueueSet Functionality

Constructor & Destructor Documentation

Queue()

template<class T , unsigned queueLength>

Queue< T, queueLength >::Queue ( char const * name = 0 )

inline

Constructor.

Parameters

name	The name to register the Queue with.

Member Function Documentation

add()

template<class T >

bool QueueTypeBase< T >::add ( T const & item, TickType_t time = portMAX_DELAY )

inlineinherited

add an item at end of the Queue.

Puts an item onto the Queue so it will be the last item to remove.

Parameters

item	The item to put on the Queue.
time	How long to wait for room if Queue is full.

Returns

True if successful

add_ISR()

template<class T >

bool QueueTypeBase< T >::add_ISR ( T const & item, portBASE_TYPE & waswoken )

inlineinherited

add an item at end of the Queue.

Puts an item onto the Queue so it will be the last item to remove.

Note: Interrupt service routines should only call _ISR routines.

Parameters

item	The item to put on the Queue.
waswoken	Flag variable to determine if context switch is needed.

Returns

True if successful

available()

unsigned QueueBase::available ( ) const

inlineinherited

Return number of spaces available in Queue.

Returns

the number of spaces available in the Queue.

empty()

bool QueueBase::empty ( )

inlineinherited

Check if Queue is Empty.

Returns

True if Queue is Empty.

empty_ISR()

bool QueueBase::empty_ISR ( )

inlineinherited

Is Queue Empty.

Note: Interrupt service routines should only call _ISR routines.

Returns

True if Queue is Empty.

full()

bool QueueBase::full ( )

inlineinherited

Check if Queue is Full.

Returns

True if Queue is Full.

full_ISR()

bool QueueBase::full_ISR ( )

inlineinherited

Is Queue Full.

Note: Interrupt service routines should only call _ISR routines.

Returns

True if Queue is Full.

peek()

template<class T >

bool QueueTypeBase< T >::peek ( T & var, TickType_t time = 0 )

inlineinherited

Look at the first item in the Queue.

Gets the first item from the Queue leaving it there.

Parameters

var	Variable to place the item
time	How long to wait for an item to be available.

Returns

True if an item returned.

peek_ISR()

template<class T >

bool QueueTypeBase< T >::peek_ISR ( T & var, portBASE_TYPE & waswoken )

inlineinherited

Look at the first item in the Queue.

Gets the first item from the Queue leaving it there.

Note: Interrupt service routines should only call _ISR routines.

Parameters

var	Variable to place the item
waswoken	Flag variable to determine if context switch is needed.

Returns

True if an item returned.

pop()

template<class T >

bool QueueTypeBase< T >::pop ( T & var, TickType_t time = portMAX_DELAY )

inlineinherited

Get an item from the Queue.

Gets the first item from the Queue

Parameters

var	Variable to place the item
time	How long to wait for an item to be available.

Returns

True if an item returned.

pop_ISR()

template<class T >

bool QueueTypeBase< T >::pop_ISR ( T & var, portBASE_TYPE & waswoken )

inlineinherited

Get an item from the Queue.

Gets the first item from the Queue

Note: Interrupt service routines should only call _ISR routines.

Parameters

var	Variable to place the item
waswoken	Flag variable to determine if context switch is needed.

Returns

True if an item returned.

push()

template<class T >

bool QueueTypeBase< T >::push ( T const & item, TickType_t time = portMAX_DELAY )

inlineinherited

Push an item onto the Queue.

Puts an item onto the Queue so it will be the next item to remove.

Parameters

item	The item to put on the Queue.
time	How long to wait for room if Queue is full.

Returns

True if successful

push_ISR()

template<class T >

bool QueueTypeBase< T >::push_ISR ( T const & item, portBASE_TYPE & waswoken )

inlineinherited

Push an item onto the Queue.

Puts an item onto the Queue so it will be the next item to remove.

Note: Interrupt service routines should only call _ISR routines.

Parameters

item	The item to put on the Queue.
waswoken	Flag variable to determine if context switch is needed.

Returns

True if successful

reset()

void QueueBase::reset ( )

inlineinherited

Reset the Queue.

Resets the Queue to an empty state.

waiting()

unsigned QueueBase::waiting ( ) const

inlineinherited

Get number of items in the Queue.

Returns

The number of item in the Queue.

waiting_ISR()

unsigned QueueBase::waiting_ISR ( )

inlineinherited

Get number of message waiting.

Note: Interrupt service routines should only call _ISR routines.

Returns

The number of messages waiting.

Member Data Documentation

queueHandle

QueueHandle_t QueueBase::queueHandle

protectedinherited

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

• QueueCPP.h