extern struct SyncHashCacheEntry *
SyncHashEnter(struct SyncHashCacheHead *head,
const unsigned char *xp, ssize_t xs,
enum SyncHashState set) {
if (xp == NULL || xs <= 0) return NULL;
uint32_t h = SyncSmallHash(xp, xs);
uint32_t hx = h % head->mod;
struct SyncHashCacheEntry *old = head->ents[hx];
struct SyncHashCacheEntry *ent = old;
head->probes = head->probes + 1;
while (ent != NULL) {
if (h == ent->small) {
// probably equal, but we have to check
ssize_t cmp = SyncCmpHashesRaw(xp, xs, ent->hash->buf, ent->hash->length);
if (cmp == 0) {
ent->state |= set;
return ent;
}
}
ent = ent->next;
}
head->misses = head->misses + 1;
if (ent == NULL) {
uintmax_t index = head->lastIndex + 1;
head->lastIndex = index;
head->probes = head->probes + 1;
head->misses = head->misses + 1;
ent = NEW_STRUCT(1, SyncHashCacheEntry);
ent->lastUsed = SyncCurrentTime();
ent->head = head;
ent->next = old;
ent->small = h;
ent->hash = ccn_charbuf_create();
ent->index = index;
ccn_charbuf_append(ent->hash, xp, xs);
head->ents[hx] = ent;
head->len++;
}
ent->state |= set;
return ent;
}
extern struct SyncBaseStruct *
SyncNewBase(struct ccnr_handle *ccnr,
struct ccn *ccn,
struct ccn_schedule *sched) {
sync_time now = SyncCurrentTime();
struct SyncBaseStruct *base = NEW_STRUCT(1, SyncBaseStruct);
base->ccnr = ccnr;
base->ccn = ccn;
base->sched = sched;
struct SyncPrivate *priv = NEW_STRUCT(1, SyncPrivate);
base->priv = priv;
priv->topoAccum = SyncAllocNameAccum(4);
priv->prefixAccum = SyncAllocNameAccum(4);
priv->sliceCmdPrefix = ccn_charbuf_create();
priv->localHostPrefix = ccn_charbuf_create();
priv->comps = ccn_indexbuf_create();
priv->stableTarget = CCNR_NULL_HWM;
priv->stableStored = CCNR_NULL_HWM;
priv->lastStable = now;
priv->lastCacheClean = now;
ccn_name_from_uri(priv->localHostPrefix, "/%C1.M.S.localhost");
ccn_name_from_uri(priv->sliceCmdPrefix, "/%C1.M.S.localhost/%C1.S.cs");
return base;
}
res |= ccn_name_append(prefix, ce->hash->buf, ce->hash->length);
} else {
// append an empty component
res |= ccn_name_append(prefix, "", 0);
}
struct SyncNameAccum *excl = SyncExclusionsFromHashList(root, NULL, ch->hashSeen);
struct ccn_charbuf *template = SyncGenInterest(NULL,
base->priv->syncScope,
base->priv->fetchLifetime,
-1, -1, excl);
SyncFreeNameAccumAndNames(excl);
struct ccn_closure *action = calloc(1, sizeof(*action));
struct sync_diff_fetch_data *fetch_data = calloc(1, sizeof(*fetch_data));
fetch_data->diff_data = diff_data;
fetch_data->action = action;
fetch_data->startTime = SyncCurrentTime();
// note: no ce available yet
action->data = fetch_data;
action->intdata = LF_ADVISE;
action->p = &my_response;
fetch_data->next = ch->fetch_data;
ch->fetch_data = fetch_data;
res |= ccn_express_interest(ccn, prefix, action, template);
ccn_charbuf_destroy(&template);
if (ch->debug >= CCNL_FINE) {
SyncNoteUri(diff_data->root, here, "start_interest", prefix);
}
ccn_charbuf_destroy(&prefix);
if (res < 0) {
SyncNoteFailed(root, here, "ccn_express_interest failed", __LINE__);
// return the resources, must free fd first!
