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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $Id: scsp_timer.c,v 1.1 1998/09/15 08:23:17 phk Exp $
*
*/
/*
* Server Cache Synchronization Protocol (SCSP) Support
* ----------------------------------------------------
*
* Timer processing
*
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_ioctl.h>
#include <errno.h>
#include <libatm.h>
#include <stdio.h>
#include <syslog.h>
#include "scsp_msg.h"
#include "scsp_if.h"
#include "scsp_var.h"
#ifndef lint
__RCSID("@(#) $Id: scsp_timer.c,v 1.1 1998/09/15 08:23:17 phk Exp $");
#endif
/*
* Process an SCSP Open timeout
*
* The open timer is set when an attempt to open a VCC to a DCS fails.
* This routine will be called when the timer fires and will retry
* the open. Retries can continue indefinitely.
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_open_timeout(stp)
Harp_timer *stp;
{
Scsp_dcs *dcsp;
/*
* Back off to start of DCS entry
*/
dcsp = (Scsp_dcs *) ((caddr_t)stp -
(int)(&((Scsp_dcs *)0)->sd_open_t));
/*
* Retry the connection
*/
if (scsp_dcs_connect(dcsp)) {
/*
* Connect failed -- we hope the error was temporary
* and set the timer to try again later
*/
HARP_TIMER(&dcsp->sd_open_t, SCSP_Open_Interval,
scsp_open_timeout);
}
}
/*
* Process an SCSP Hello timeout
*
* The Hello timer fires every SCSP_HELLO_Interval seconds. This
* routine will notify the Hello FSM when the timer fires.
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_hello_timeout(stp)
Harp_timer *stp;
{
Scsp_dcs *dcsp;
/*
* Back off to start of DCS entry
*/
dcsp = (Scsp_dcs *) ((caddr_t)stp -
(int)(&((Scsp_dcs *)0)->sd_hello_h_t));
/*
* Call the Hello FSM
*/
(void)scsp_hfsm(dcsp, SCSP_HFSM_HELLO_T, (Scsp_msg *)0);
return;
}
/*
* Process an SCSP receive timeout
*
* The receive timer is started whenever the Hello FSM receives a
* Hello message from its DCS. If the timer fires, it means that no
* Hello messages have been received in the DCS's Hello interval.
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_hello_rcv_timeout(stp)
Harp_timer *stp;
{
Scsp_dcs *dcsp;
/*
* Back off to start of DCS entry
*/
dcsp = (Scsp_dcs *) ((caddr_t)stp -
(int)(&((Scsp_dcs *)0)->sd_hello_rcv_t));
/*
* Call the Hello FSM
*/
(void)scsp_hfsm(dcsp, SCSP_HFSM_RCV_T, (void *)0);
return;
}
/*
* Process an SCSP CA retransmit timeout
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_ca_retran_timeout(stp)
Harp_timer *stp;
{
Scsp_dcs *dcsp;
/*
* Back off to start of DCS entry
*/
dcsp = (Scsp_dcs *) ((caddr_t)stp -
(int)(&((Scsp_dcs *)0)->sd_ca_rexmt_t));
/*
* Call the CA FSM
*/
(void)scsp_cafsm(dcsp, SCSP_CAFSM_CA_T, (void *)0);
return;
}
/*
* Process an SCSP CSUS retransmit timeout
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_csus_retran_timeout(stp)
Harp_timer *stp;
{
Scsp_dcs *dcsp;
/*
* Back off to start of DCS entry
*/
dcsp = (Scsp_dcs *) ((caddr_t)stp -
(int)(&((Scsp_dcs *)0)->sd_csus_rexmt_t));
/*
* Call the CA FSM
*/
(void)scsp_cafsm(dcsp, SCSP_CAFSM_CSUS_T, (void *)0);
return;
}
/*
* Process an SCSP CSU Req retransmit timeout
*
* Arguments:
* stp pointer to an SCSP timer block
*
* Returns:
* None
*
*/
void
scsp_csu_req_retran_timeout(stp)
Harp_timer *stp;
{
Scsp_csu_rexmt *rxp;
Scsp_dcs *dcsp;
/*
* Back off to start of CSU Request retransmission entry
*/
rxp = (Scsp_csu_rexmt *) ((caddr_t)stp -
(int)(&((Scsp_csu_rexmt *)0)->sr_t));
dcsp = rxp->sr_dcs;
/*
* Call the CA FSM
*/
(void)scsp_cafsm(dcsp, SCSP_CAFSM_CSU_T, (void *)rxp);
return;
}
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