void
ccnl_do_ageing(void *ptr, void *dummy)
{
(void) dummy;
struct ccnl_relay_s *relay = (struct ccnl_relay_s*) ptr;
struct ccnl_content_s *c = relay->contents;
struct ccnl_interest_s *i = relay->pit;
struct ccnl_face_s *f = relay->faces;
time_t t = CCNL_NOW();
DEBUGMSG_CORE(TRACE, "ageing t=%d\n", (int)t);
while (c) {
if ((c->last_used + CCNL_CONTENT_TIMEOUT) <= t &&
!(c->flags & CCNL_CONTENT_FLAGS_STATIC)){
DEBUGMSG_CORE(TRACE, "AGING: CONTENT REMOVE %p\n", (void*) c);
c = ccnl_content_remove(relay, c);
}
else
c = c->next;
}
while (i) { // CONFORM: "Entries in the PIT MUST timeout rather
// than being held indefinitely."
if ((i->last_used + CCNL_INTEREST_TIMEOUT) <= t ||
i->retries > CCNL_MAX_INTEREST_RETRANSMIT) {
DEBUGMSG_CORE(TRACE, "AGING: INTEREST REMOVE %p\n", (void*) i);
DEBUGMSG_CORE(DEBUG, " timeout: remove interest 0x%p <%s>\n",
(void*)i,
ccnl_prefix_to_path(i->pkt->pfx));
i = ccnl_nfn_interest_remove(relay, i);
} else {
// CONFORM: "A node MUST retransmit Interest Messages
// periodically for pending PIT entries."
DEBUGMSG_CORE(DEBUG, " retransmit %d <%s>\n", i->retries,
ccnl_prefix_to_path(i->pkt->pfx));
#ifdef USE_NFN
if (i->flags & CCNL_PIT_COREPROPAGATES){
#endif
DEBUGMSG_CORE(TRACE, "AGING: PROPAGATING INTEREST %p\n", (void*) i);
ccnl_interest_propagate(relay, i);
#ifdef USE_NFN
}
#endif
i->retries++;
i = i->next;
}
}
while (f) {
if (!(f->flags & CCNL_FACE_FLAGS_STATIC) &&
(f->last_used + CCNL_FACE_TIMEOUT) <= t){
DEBUGMSG_CORE(TRACE, "AGING: FACE REMOVE %p\n", (void*) f);
f = ccnl_face_remove(relay, f);
}
else
f = f->next;
}
}
struct ccnl_face_s*
ccnl_face_remove(struct ccnl_relay_s *ccnl, struct ccnl_face_s *f)
{
struct ccnl_face_s *f2;
struct ccnl_interest_s *pit;
struct ccnl_forward_s **ppfwd;
DEBUGMSG_CORE(DEBUG, "face_remove relay=%p face=%p\n",
(void*)ccnl, (void*)f);
ccnl_sched_destroy(f->sched);
ccnl_frag_destroy(f->frag);
DEBUGMSG_CORE(TRACE, "face_remove: cleaning PIT\n");
for (pit = ccnl->pit; pit; ) {
struct ccnl_pendint_s **ppend, *pend;
if (pit->from == f)
pit->from = NULL;
for (ppend = &pit->pending; *ppend;) {
if ((*ppend)->face == f) {
pend = *ppend;
*ppend = pend->next;
ccnl_free(pend);
} else
ppend = &(*ppend)->next;
}
if (pit->pending)
pit = pit->next;
else {
DEBUGMSG_CORE(TRACE, "before NFN interest_remove 0x%p\n",
(void*)pit);
pit = ccnl_nfn_interest_remove(ccnl, pit);
}
}
DEBUGMSG_CORE(TRACE, "face_remove: cleaning fwd table\n");
for (ppfwd = &ccnl->fib; *ppfwd;) {
if ((*ppfwd)->face == f) {
struct ccnl_forward_s *pfwd = *ppfwd;
free_prefix(pfwd->prefix);
*ppfwd = pfwd->next;
ccnl_free(pfwd);
} else
ppfwd = &(*ppfwd)->next;
}
DEBUGMSG_CORE(TRACE, "face_remove: cleaning pkt queue\n");
while (f->outq) {
struct ccnl_buf_s *tmp = f->outq->next;
ccnl_free(f->outq);
f->outq = tmp;
}
DEBUGMSG_CORE(TRACE, "face_remove: unlinking1 %p %p\n",
(void*)f->next, (void*)f->prev);
f2 = f->next;
DEBUGMSG_CORE(TRACE, "face_remove: unlinking2\n");
DBL_LINKED_LIST_REMOVE(ccnl->faces, f);
DEBUGMSG_CORE(TRACE, "face_remove: unlinking3\n");
ccnl_free(f);
TRACEOUT();
return f2;
}
void
ccnl_do_ageing(void *ptr, void *dummy)
{
struct ccnl_relay_s *relay = (struct ccnl_relay_s*) ptr;
struct ccnl_content_s *c = relay->contents;
struct ccnl_interest_s *i = relay->pit;
struct ccnl_face_s *f = relay->faces;
time_t t = CCNL_NOW();
char *bufp = NULL;
DEBUGMSG_CORE(INFO, " ICNIoT: ageing t=%d\n", (int)t);
while (c) {
if ((c->last_used + CCNL_CONTENT_TIMEOUT) <= t &&
!(c->flags & CCNL_CONTENT_FLAGS_STATIC)){
DEBUGMSG_CORE(INFO, " ICNIoT: AGING: CONTENT REMOVE %p\n", (void*) c);
c = ccnl_content_remove(relay, c);
}
else{
//akhila 29-10-2015
// check if it is the n th time instant. If yes then save the content store
if ((((int)t)%CS_SAVE_PERIOD == 0) && !(c->flags & CCNL_CONTENT_FLAGS_STATIC)){
bufp = ccnl_prefix_to_path((c->pkt)->pfx);
DEBUGMSG_CORE(INFO, " ICNIoT: ContentStoreItem :%s\n",bufp);
ccnl_free(bufp);
}
c = c->next;
}
}
if (((int)t)%CS_SAVE_PERIOD == 0){
DEBUGMSG_CORE(INFO, " ICNIoT: ContentStoreItem contentCount:%d\n",relay->contentcnt);
}
while (i) { // CONFORM: "Entries in the PIT MUST timeout rather
// than being held indefinitely."
if ((i->last_used + CCNL_INTEREST_TIMEOUT) <= t){ // if it has timed out either resend it or remove it based on MAX_RETRIES
if(i->retries >= CCNL_MAX_INTEREST_RETRANSMIT){
DEBUGMSG_CORE(INFO, " ICNIoT: AGING: INTEREST REMOVE %p\n", (void*) i);
// DEBUGMSG_CORE(DEBUG, " timeout: remove interest 0x%p <%s>\n",(void*)i,ccnl_prefix_to_path(i->pkt->pfx));
i = ccnl_nfn_interest_remove(relay, i);
}
else {
// CONFORM: "A node MUST retransmit Interest Messages
// periodically for pending PIT entries."
DEBUGMSG_CORE(INFO, " ICNIoT: retransmit %d \n", i->retries);
// ccnl_prefix_to_path(i->pkt->pfx));
#ifdef USE_NFN
if (i->flags & CCNL_PIT_COREPROPAGATES){
#endif
DEBUGMSG_CORE(INFO, " ICNIoT: AGING: PROPAGATING INTEREST %p\n", (void*) i);
ccnl_interest_propagate(relay, i);
#ifdef USE_NFN
}
#endif
i->retries++;
i = i->next;
}
}
else{ // The interest has not timed out yet, so leave it alone !
// DEBUGMSG_CORE(INFO, " ICNIoT: AGING: DO NOTHING %p\n", (void*) i);
i = i->next;
}
}
// DEBUGMSG_CORE(INFO, " ICNIoT: PITcount %d\n",relay->pitcnt);
while (f) {
if (!(f->flags & CCNL_FACE_FLAGS_STATIC) &&
(f->last_used + CCNL_FACE_TIMEOUT) <= t){
DEBUGMSG_CORE(TRACE, "AGING: FACE REMOVE %p\n", (void*) f);
f = ccnl_face_remove(relay, f);
}
else
f = f->next;
}
}