CNQueue -- Abstract Queue Base Class

SYNOPSIS

#include <CNCL/Queue.h>

TYPE

CN_QUEUE

BASE CLASSES

CNObject

DERIVED CLASSES

CNPrioQueueFIFO, CNQueueFIFO, CNQueueLIFO, CNQueueRandom, CNQueueSPT,

CNSink

RELATED CLASSES

CNJob, CNStack

DESCRIPTION

CNQueue is a queue of any CNCL compatible object.

Constructors:

CNQueue();

CNQueue(CNParam *param);

Initialize the queue.

In addition to the member functions required by CNCL, CNQueue provides the following abstract member function, which must be implemented by the derived classes:

virtual bool empty() const = 0;

Returns TRUE, if the queue is empty.

virtual bool full() const = 0;

Returns TRUE, if the queue is full.

virtual int length() const = 0;

Returns the actual queue length.

virtual void put(CNObject *obj) = 0;

void put(CNObject &obj);

Puts an object into the queue.

virtual CNObject *get() = 0;

Retrieves an object from the queue.

virtual CNObject *peek() = 0;

Retrieves an object from the queue. Unlike get(), the object is not removed from the queue.

virtual void delete_all() = 0;

Deletes all objects in the queue.

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