nc::CircularQueue

nc::CircularQueue −

#include <acsncCircularQueue.h>

Public Member Functions

CircularQueue (unsigned int size=100)

~CircularQueue ()

void push (CosNotification::StructuredEvent e)

void clear ()

void pop ()

CosNotification::StructuredEvent * front ()

unsigned int size ()

Private Attributes

std::deque< CosNotification::StructuredEvent > queue

unsigned int length

const unsigned int max_size

Circular Queue implemented to maintain temporally structured events when the Notify Service is down.

nc::CircularQueue::CircularQueue (unsigned int size = 100) Initializes the Queue with custom value size, by default the size value is 100

Parameters:

size the size of the queue

nc::CircularQueue::~CircularQueue () Clears the internal queue

void nc::CircularQueue::clear () Remove all the elements of the queue

CosNotification::StructuredEvent* nc::CircularQueue::front () Returns the first element of the circular queue, without removing it from the queue.

Returns:

the first element in the queue

void nc::CircularQueue::pop () Removes the first element in the queue and return it. If there is no elements in the queue returns null

void nc::CircularQueue::push (CosNotification::StructuredEvent e) Insert a structured event at the end of the queue. If the queue is full, inserts the structured event and remove the first event in the queue

Parameters:

e the event to be inserted in the queue

Exceptions:

EventDroppedException if the queue drop a message after to push the event e

unsigned int nc::CircularQueue::size () [inline]

References queue.

unsigned int nc::CircularQueue::length [private]

const unsigned int nc::CircularQueue::max_size [private]

std::deque<CosNotification::StructuredEvent> nc::CircularQueue::queue [private]

Referenced by size().

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