void
ccnl_core_cleanup(struct ccnl_relay_s *ccnl)
{
int k;
DEBUGMSG_CORE(TRACE, "ccnl_core_cleanup %p\n", (void *) ccnl);
while (ccnl->pit)
ccnl_interest_remove(ccnl, ccnl->pit);
while (ccnl->faces)
ccnl_face_remove(ccnl, ccnl->faces); // removes allmost all FWD entries
while (ccnl->fib) {
struct ccnl_forward_s *fwd = ccnl->fib->next;
ccnl_prefix_free(ccnl->fib->prefix);
ccnl_free(ccnl->fib);
ccnl->fib = fwd;
}
while (ccnl->contents)
ccnl_content_remove(ccnl, ccnl->contents);
while (ccnl->nonces) {
struct ccnl_buf_s *tmp = ccnl->nonces->next;
ccnl_free(ccnl->nonces);
ccnl->nonces = tmp;
}
for (k = 0; k < ccnl->ifcount; k++)
ccnl_interface_cleanup(ccnl->ifs + k);
}
void ccnl_core_cleanup(struct ccnl_relay_s *ccnl)
{
int k;
DEBUGMSG(99, "ccnl_core_cleanup %p\n", (void *) ccnl);
while (ccnl->pit) {
ccnl_interest_remove(ccnl, ccnl->pit);
}
while (ccnl->faces) {
ccnl_face_remove(ccnl, ccnl->faces); // also removes all FWD entries
}
while (ccnl->contents) {
ccnl_content_remove(ccnl, ccnl->contents);
}
while (ccnl->nonces) {
ccnl_nonce_remove(ccnl, ccnl->nonces);
}
for (k = 0; k < ccnl->ifcount; k++) {
ccnl_interface_cleanup(ccnl->ifs + k);
}
}
void ccnl_do_ageing(void *ptr, void *dummy)
{
(void) dummy; /* unused */
struct ccnl_relay_s *relay = (struct ccnl_relay_s *) ptr;
struct ccnl_interest_s *i = relay->pit;
struct ccnl_content_s *c = relay->contents;
struct ccnl_face_s *f = relay->faces;
struct timeval now;
ccnl_get_timeval(&now);
//DEBUGMSG(999, "ccnl_do_ageing %ld:%ld\n", now.tv_sec, now.tv_usec);
while (i) {
if (ccnl_is_timed_out(&now, &i->last_used, CCNL_INTEREST_TIMEOUT_SEC,
CCNL_INTEREST_TIMEOUT_USEC)) {
if (i->from->ifndx == RIOT_MSG_IDX) {
/* this interest was requested by an app from this node */
/* inform this app about this problem */
riot_send_nack(i->from->faceid);
}
i = ccnl_interest_remove(relay, i);
}
else {
i = i->next;
}
}
while (c) {
if (ccnl_is_timed_out(&now, &c->last_used, CCNL_CONTENT_TIMEOUT_SEC, CCNL_CONTENT_TIMEOUT_USEC)
&& !(c->flags & CCNL_CONTENT_FLAGS_STATIC)) {
c = ccnl_content_remove(relay, c);
}
else {
c = c->next;
}
}
while (f) {
if (!(f->flags & CCNL_FACE_FLAGS_STATIC)
&& ccnl_is_timed_out(&now, &f->last_used, CCNL_FACE_TIMEOUT_SEC, CCNL_FACE_TIMEOUT_USEC)) {
f = ccnl_face_remove(relay, f);
}
else {
f = f->next;
}
}
struct ccnl_forward_s *fwd = relay->fib;
while (fwd) {
if (!(fwd->flags & CCNL_FORWARD_FLAGS_STATIC)
&& ccnl_is_timed_out(&now, &fwd->last_used, CCNL_FWD_TIMEOUT_SEC, CCNL_FWD_TIMEOUT_USEC)) {
fwd = ccnl_forward_remove(relay, fwd);
}
else {
fwd = fwd->next;
}
}
}
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;
}
}
int
ccnl_nfn_RX_result(struct ccnl_relay_s *relay, struct ccnl_face_s *from,
struct ccnl_content_s *c)
{
struct ccnl_interest_s *i_it = NULL;
int found = 0;
TRACEIN();
#ifdef USE_NACK
if (ccnl_nfnprefix_contentIsNACK(c)) {
ccnl_nfn_nack_local_computation(relay, c->pkt->buf, c->pkt->pfx,
from, c->pkt->pfx->suite);
return -1;
}
#endif // USE_NACK
for (i_it = relay->pit; i_it;/* i_it = i_it->next*/) {
//Check if prefix match and it is a nfn request
if (!ccnl_prefix_cmp(c->pkt->pfx, NULL, i_it->pkt->pfx, CMP_EXACT) &&
i_it->from && i_it->from->faceid < 0) {
struct ccnl_face_s *from = i_it->from;
int faceid = - from->faceid;
DEBUGMSG(TRACE, " interest faceid=%d\n", i_it->from->faceid);
ccnl_content_add2cache(relay, c);
DEBUGMSG(DEBUG, "Continue configuration for configid: %d with prefix: %s\n",
faceid, ccnl_prefix_to_path(c->pkt->pfx));
i_it->flags |= CCNL_PIT_COREPROPAGATES;
i_it->from = NULL;
ccnl_nfn_continue_computation(relay, faceid, 0);
i_it = ccnl_interest_remove(relay, i_it);
ccnl_face_remove(relay, from);
++found;
//goto Done;
} else
i_it = i_it->next;
}
TRACEOUT();
return found > 0;
}
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;
}
}