/*
 ******************************************************************************
 *                     INTERPEAK SOURCE FILE
 *
 *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipcom_observer.c,v $ $Revision: 1.1 $
 *   $Source: /home/interpeak/CVSRoot/ipcom/src/ipcom_observer.c,v $
 *   $Author: kenneth $
 *   $State: Exp $ $Locker:  $
 *
 *   INTERPEAK_COPYRIGHT_STRING
 *   Design and implementation by Kenneth Jonsson <kenneth.jonsson@windriver.com>
 ******************************************************************************
 */


/*
 ****************************************************************************
 * 1                    DESCRIPTION
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 2                    CONFIGURATION
 ****************************************************************************
 */

#ifndef IPCOM_KERNEL
#define IPCOM_KERNEL
#endif
#include "ipcom_config.h"


/*
 ****************************************************************************
 * 3                    INCLUDE FILES
 ****************************************************************************
 */

#define IPCOM_USE_CLIB_PROTO
#include "ipcom_cstyle.h"
#include "ipcom_observer.h"
#include "ipcom_type.h"


/*
 ****************************************************************************
 * 4                    DEFINES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 5                    TYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 6                    EXTERN PROTOTYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 7                    LOCAL PROTOTYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 8                    DATA
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 9                    STATIC FUNCTIONS
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 10                   GLOBAL FUNCTIONS
 ****************************************************************************
 */

/*
 *===========================================================================
 *                         ipcom_observer_notify
 *===========================================================================
 * Description: Notifies all observer to the specified subject
 * Parameters:  observers - collection of observers to the subject
 *              subject - the subject being observed.
 *              subject_ctx - data accosiated with the change that happend
 *                            to the subject
 * Returns:
 *
 */
IP_GLOBAL void
ipcom_observer_notify(Ipcom_observer_collection *observers,
                      void *subject,
                      void *subject_ctx)
{
    Ipcom_observer *observer;

    /*
     * Iterate over the observers in a way so an observer can remove
     * itself from the list in "action"
     */
    observer = IPCOM_LIST_FIRST((Ipcom_list *)observers);
    while (observer != IP_NULL)
    {
        Ipcom_observer *next = IPCOM_LIST_NEXT(&observer->list);

        observer->action(subject,
                         subject_ctx,
                         observer->ctx);
        observer = next;
    }
}


/*
 ****************************************************************************
 * 11                   PUBLIC FUNCTIONS
 ****************************************************************************
 */

/*
 ****************************************************************************
 *                      END OF FILE
 ****************************************************************************
 */