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remove global ctime.Each entry's ctime is now absolute.This avoids wrapping and also solves naming clash reported on the list

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jani 2003-01-13 09:38:21 +00:00
parent 02a6a8a809
commit 8d7f09fa92
1 changed files with 13 additions and 13 deletions
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26
src/netif/etharp.c
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@ -3,6 +3,9 @@
* Address Resolution Protocol module for IP over Ethernet
*
* $Log: etharp.c,v $
* Revision 1.22 2003/01/13 09:38:21 jani
* remove global ctime.Each entry's ctime is now absolute.This avoids wrapping and also solves naming clash reported on the list
*
* Revision 1.21 2003/01/08 11:04:36 likewise
* Moved ETHARP_ALWAYS_INSERT switch to lwipopts.h
*
@ -137,7 +140,6 @@ struct etharp_entry {
static const struct eth_addr ethbroadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
static struct etharp_entry arp_table[ARP_TABLE_SIZE];
static u8_t ctime;
static struct pbuf *update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *ethaddr, u8_t flags);
#define ARP_INSERT_FLAG 1
@ -156,8 +158,6 @@ etharp_init(void)
arp_table[i].p = NULL;
#endif
}
/* reset ARP current time */
ctime = 0;
}
/**
@ -171,12 +171,12 @@ etharp_tmr(void)
{
u8_t i;
++ctime;
DEBUGF(ETHARP_DEBUG, ("etharp_timer\n"));
/* remove expired entries from the ARP table */
for(i = 0; i < ARP_TABLE_SIZE; ++i) {
arp_table[i].ctime++;
if((arp_table[i].state == ETHARP_STATE_STABLE) &&
(ctime - arp_table[i].ctime >= ARP_MAXAGE)) {
(arp_table[i].ctime >= ARP_MAXAGE)) {
DEBUGF(ETHARP_DEBUG, ("etharp_timer: expired stable entry %u.\n", i));
arp_table[i].state = ETHARP_STATE_EMPTY;
#if ARP_QUEUEING
@ -185,7 +185,7 @@ etharp_tmr(void)
arp_table[i].p = NULL;
#endif
} else if((arp_table[i].state == ETHARP_STATE_PENDING) &&
(ctime - arp_table[i].ctime >= ARP_MAXPENDING)) {
(arp_table[i].ctime >= ARP_MAXPENDING)) {
arp_table[i].state = ETHARP_STATE_EMPTY;
#if ARP_QUEUEING
DEBUGF(ETHARP_DEBUG, ("etharp_timer: expired pending entry %u - dequeueing %p.\n", i, (void *)(arp_table[i].p)));
@ -227,8 +227,8 @@ find_arp_entry(void)
for(i = 0; i < ARP_TABLE_SIZE; ++i) {
/* remember entry with oldest stable entry in j*/
if((arp_table[i].state == ETHARP_STATE_STABLE) &&
(ctime - arp_table[i].ctime > maxtime)) {
maxtime = ctime - arp_table[i].ctime;
(arp_table[i].ctime > maxtime)) {
maxtime = arp_table[i].ctime;
j = i;
}
}
@ -289,8 +289,8 @@ update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *e
for(k = 0; k < 6; ++k) {
arp_table[i].ethaddr.addr[k] = ethaddr->addr[k];
}
/* time stamp */
arp_table[i].ctime = ctime;
/* reset time stamp */
arp_table[i].ctime = 0;
#if ARP_QUEUEING
/* queued packet present? */
if(arp_table[i].p != NULL) {
@ -346,8 +346,8 @@ update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *e
for(k = 0; k < 6; ++k) {
arp_table[i].ethaddr.addr[k] = ethaddr->addr[k];
}
/* time-stamp */
arp_table[i].ctime = ctime;
/* reset time-stamp */
arp_table[i].ctime = 0;
/* mark as stable */
arp_table[i].state = ETHARP_STATE_STABLE;
/* no queued packet */
@ -698,7 +698,7 @@ struct pbuf *etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pb
DEBUGF(ETHARP_DEBUG, ("etharp_query: created ARP table entry.\n"));
/* i is available, create ARP entry */
ip_addr_set(&arp_table[i].ipaddr, ipaddr);
arp_table[i].ctime = ctime;
arp_table[i].ctime = 0;
arp_table[i].state = ETHARP_STATE_PENDING;
#if ARP_QUEUEING
arp_table[i].p = NULL;