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FS-9775: findclosest_nodes support for local/remote and ip family

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colm 2016-12-10 13:35:04 -05:00 committed by Mike Jerris
parent 579e32013e
commit fdd7e7ec1c
1 changed files with 19 additions and 9 deletions
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20
libs/libks/src/dht/ks_dht_bucket.c
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@ -55,6 +55,7 @@ typedef struct ks_dhtrt_bucket_entry_s {
uint8_t id[KS_DHT_NODEID_SIZE];
ks_dht_node_t *gptr; /* ptr to peer */
enum ks_dht_nodetype_t type;
enum ipfamily family;
uint8_t inuse;
uint8_t outstanding_pings;
uint8_t flags; /* active, suspect, expired */
@ -150,6 +151,7 @@ uint8_t ks_dhtrt_load_query(ks_dhtrt_querynodes_t *query, ks_dhtrt_sortedxors_t
static
uint8_t ks_dhtrt_findclosest_bucketnodes(unsigned char *nodeid,
enum ks_dht_nodetype_t type,
enum ipfamily family,
ks_dhtrt_bucket_header_t *header,
ks_dhtrt_sortedxors_t *xors,
unsigned char *hixor,
@ -414,7 +416,7 @@ KS_DECLARE(uint8_t) ks_dhtrt_findclosest_nodes(ks_dhtrt_routetable_t *table, ks_
/* step 1 - look at immediate bucket */
/* --------------------------------- */
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, header, &xort0, initid ,max);
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, query->family, header, &xort0, initid ,max);
max -= cnt;
total += cnt;
@ -447,7 +449,7 @@ KS_DECLARE(uint8_t) ks_dhtrt_findclosest_nodes(ks_dhtrt_routetable_t *table, ks_
}
}
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, header, &xort1, initid ,max);
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, query->family, header, &xort1, initid ,max);
max -= cnt;
total += cnt;
@ -496,7 +498,8 @@ KS_DECLARE(uint8_t) ks_dhtrt_findclosest_nodes(ks_dhtrt_routetable_t *table, ks_
prev->next = xortn;
prev = xortn;
cnt += ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, lheader, xortn, leftid ,max);
cnt += ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, query->family,
lheader, xortn, leftid ,max);
max -= cnt;
#ifdef KS_DHT_DEBUGPRINTF_
printf(" stage3: seaching left bucket header %s yielded %d nodes, total=%d\n",
@ -514,7 +517,8 @@ KS_DECLARE(uint8_t) ks_dhtrt_findclosest_nodes(ks_dhtrt_routetable_t *table, ks_
memset(xortn1, 0, sizeof(ks_dhtrt_sortedxors_t));
prev->next = xortn1;
prev = xortn1;
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, rheader, xortn1, rightid , max);
cnt = ks_dhtrt_findclosest_bucketnodes(query->nodeid.id, query->type, query->family,
rheader, xortn1, rightid , max);
max -= cnt;
#ifdef KS_DHT_DEBUGPRINTF_
printf(" stage3: seaching right bucket header %s yielded %d nodes, total=%d\n",
@ -761,6 +765,8 @@ void ks_dhtrt_split_bucket(ks_dhtrt_bucket_header_t *original,
/* move it to the left */
memcpy(dest->entries[lix].id, source->entries[rix].id, KS_DHT_NODEID_SIZE);
dest->entries[lix].gptr = source->entries[rix].gptr;
dest->entries[lix].family = source->entries[rix].family;
dest->entries[lix].type = source->entries[rix].type;
dest->entries[lix].inuse = 1;
++lix;
++dest->count;
@ -846,6 +852,7 @@ ks_status_t ks_dhtrt_insert_id(ks_dhtrt_bucket_t *bucket, ks_dht_node_t *node)
bucket->entries[free].inuse = 1;
bucket->entries[free].gptr = node;
bucket->entries[free].type = node->type;
bucket->entries[free].family = node->family;
bucket->entries[free].tyme = ks_time_now();
bucket->entries[free].flags &= DHTPEER_ACTIVE;
@ -925,6 +932,7 @@ void ks_dhtrt_delete_id(ks_dhtrt_bucket_t *bucket, ks_dhtrt_nodeid_t id)
static
uint8_t ks_dhtrt_findclosest_bucketnodes(ks_dhtrt_nodeid_t id,
enum ks_dht_nodetype_t type,
enum ipfamily family,
ks_dhtrt_bucket_header_t *header,
ks_dhtrt_sortedxors_t *xors,
unsigned char *hixor, /*todo: remove */
@ -933,6 +941,7 @@ uint8_t ks_dhtrt_findclosest_bucketnodes(ks_dhtrt_nodeid_t id,
uint8_t count = 0; /* count of nodes added this time */
xors->startix = KS_DHT_BUCKETSIZE;
xors->count = 0;
xors->bheader = header;
unsigned char xorvalue[KS_DHT_NODEID_SIZE];
/* just ugh! - there must be a better way to do this */
@ -951,7 +960,8 @@ uint8_t ks_dhtrt_findclosest_bucketnodes(ks_dhtrt_nodeid_t id,
for (uint8_t ix=0; ix<KS_DHT_BUCKETSIZE; ++ix) {
if ( bucket->entries[ix].inuse == 1 &&
bucket->entries[ix].type & type &&
(family == ifboth || bucket->entries[ix].family == family) &&
(bucket->entries[ix].type & type) &&
ks_dhtrt_isactive( &(bucket->entries[ix])) ) {
/* calculate xor value */