common/src/nx_rarp_periodic_update.c


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/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 * Copyright (c) 2025-present Eclipse ThreadX Contributors
 *
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 *
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** NetX Component                                                        */
/**                                                                       */
/**   Reverse Address Resolution Protocol (RARP)                          */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define NX_SOURCE_CODE


/* Include necessary system files.  */

#include "nx_api.h"
#include "nx_rarp.h"

#ifndef NX_DISABLE_IPV4
/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _nx_rarp_periodic_update                            PORTABLE C      */
/*                                                           6.4.3        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Yuxin Zhou, Microsoft Corporation                                   */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function simply initiates another RARP request.  When an       */
/*    RARP response is received with our IP address, RARP (including      */
/*    this periodic update routine) is disabled.                          */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    ip_ptr                                Pointer to IP instance        */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _nx_rarp_packet_send                  Send periodic ARP request out */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    _nx_ip_thread_entry                   IP helper thread              */
/*                                                                        */
/**************************************************************************/
VOID  _nx_rarp_periodic_update(NX_IP *ip_ptr)
{

    /* Send RARP message out.  */
    _nx_rarp_packet_send(ip_ptr);

    /* Setup the RARP queue process routine.  */
    ip_ptr -> nx_ip_rarp_queue_process =  _nx_rarp_queue_process;
}
#endif /* !NX_DISABLE_IPV4  */