SyncEventQueue Class Reference

A simple FIFO queue for events. More...

#include <Syncmsg.h>

Inheritance diagram for SyncEventQueue:

Public Member Functions
void	Insert (Event::AsyncEvent *event)
	Insert in queue.
virtual void	extract ()
	Subordinate extract mechanism.
Event::AsyncEvent *	First ()
	Remove first element of queue.

Detailed Description

A simple FIFO queue for events.

Definition at line 91 of file Syncmsg.h.

Constructor & Destructor Documentation

SyncEventQueue()

SyncEventQueue::SyncEventQueue ( )

inline

Definition at line 102 of file Syncmsg.h.

                      {
        _next = _prev = this;
        _freelist = &_free;
        _free = 0;
    }

~SyncEventQueue()

SyncEventQueue::~SyncEventQueue ( )

inline

Definition at line 108 of file Syncmsg.h.

                       {
        // Only delete items if root element
        if ( _freelist == &_free ) {
            SyncEventQueue *q1 = _free;
            while ( q1 ) {
                SyncEventQueue *q2 = q1;
                q1 = q1->_free;
                delete q2;
            }
        }
    }

Member Function Documentation

Insert()

void SyncEventQueue::Insert ( Event::AsyncEvent *  event )

inline

Insert in queue.

Definition at line 121 of file Syncmsg.h.

                                         {
        SyncEventQueue *newq = _free;
 
        if ( newq ) {
            _free = newq->_free;
            newq->Set (event);
        } else {
            newq = new SyncEventQueue (event);
            newq->_freelist = _freelist;
        }
 
        _prev->_next = newq;
        newq->_prev = _prev;
        newq->_next = this;
        _prev = newq;
    }

Referenced by Syncmsgobj< C >::msgDeliver(), and Syncmsgobj< C >::Queue().

extract()

virtual void SyncEventQueue::extract ( )

inlinevirtual

Subordinate extract mechanism.

Definition at line 139 of file Syncmsg.h.

                            {
        _prev->_next = _next;
        _next->_prev = _prev;
        _free = *_freelist;
        *_freelist = this;
    }

First()

Event::AsyncEvent * SyncEventQueue::First ( )

inline

Remove first element of queue.

Definition at line 147 of file Syncmsg.h.

                               {
        if ( _next == this )
            return 0;
 
        return _next->Extract();
    }

Referenced by Syncmsgobj< C >::msgDeliver(), and Syncmsgobj< C >::Process().

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

• Syncmsg.h