static void
savePeers (tr_variant * dict, const tr_torrent * tor)
{
int count;
tr_pex * pex;
count = tr_peerMgrGetPeers ((tr_torrent*) tor, &pex, TR_AF_INET, TR_PEERS_INTERESTING, MAX_REMEMBERED_PEERS);
if (count > 0)
tr_variantDictAddRaw (dict, TR_KEY_peers2, pex, sizeof (tr_pex) * count);
tr_free (pex);
count = tr_peerMgrGetPeers ((tr_torrent*) tor, &pex, TR_AF_INET6, TR_PEERS_INTERESTING, MAX_REMEMBERED_PEERS);
if (count > 0)
tr_variantDictAddRaw (dict, TR_KEY_peers2_6, pex, sizeof (tr_pex) * count);
tr_free (pex);
}
static void
savePeers( tr_benc * dict, const tr_torrent * tor )
{
int count;
tr_pex * pex;
count = tr_peerMgrGetPeers( (tr_torrent*) tor, &pex, TR_AF_INET, TR_PEERS_ALL, MAX_REMEMBERED_PEERS );
if( count > 0 )
tr_bencDictAddRaw( dict, KEY_PEERS, pex, sizeof( tr_pex ) * count );
tr_free( pex );
count = tr_peerMgrGetPeers( (tr_torrent*) tor, &pex, TR_AF_INET6, TR_PEERS_ALL, MAX_REMEMBERED_PEERS );
if( count > 0 )
tr_bencDictAddRaw( dict, KEY_PEERS6, pex, sizeof( tr_pex ) * count );
tr_free( pex );
}
static void
savePeers( tr_benc * dict,
const tr_torrent * tor )
{
tr_pex * pex = NULL;
const int count = tr_peerMgrGetPeers( tor->session->peerMgr,
tor->info.hash, &pex );
if( count > 0 )
tr_bencDictAddRaw( dict, KEY_PEERS, pex, sizeof( tr_pex ) * count );
tr_free( pex );
}
// Envio de mensagem PEX
static void sendPex(tr_peerMsgs * msgs) {
if (msgs->peerSupportsPex && tr_torrentAllowsPex(msgs->torrent)) {
(...)
// Seleciona os 50 nós conectados e que são úteis ao torrent sendo baixado.
const int newCount = tr_peerMgrGetPeers(msgs->torrent, &newPex, TR_AF_INET,
TR_PEERS_CONNECTED, MAX_PEX_PEER_COUNT);
(...)
/* build the diffs */
diffs.added = tr_new(tr_pex, newCount); diffs.addedCount = 0;
diffs.dropped = tr_new(tr_pex, msgs->pexCount); diffs.droppedCount = 0;
diffs.elements = tr_new(tr_pex, newCount + msgs->pexCount); diffs.elementCount = 0;
tr_set_compare(msgs->pex, msgs->pexCount, newPex, newCount, tr_pexCompare,
sizeof(tr_pex), pexDroppedCb, pexAddedCb, pexElementCb, &diffs);
(...)
// Se tiverem novos peers a serem enviados, o faz.
if (diffs.addedCount || diffs.droppedCount || !diffs6.addedCount ||
diffs6.droppedCount) {
int i; tr_variant val; uint8_t * tmp, *walk; // variáveis temporárias
struct evbuffer * payload; // listas de peers do PEX
struct evbuffer * out = msgs->outMessages; // mensagem a ser enviada
/* update peer */
(...)
msgs->pex = diffs.elements; msgs->pexCount = diffs.elementCount;
(...)
/* build the pex payload */
tr_variantInitDict(&val, 3);
if (diffs.addedCount > 0) {
/* "added" */
tmp = walk = tr_new(uint8_t, diffs.addedCount * 6);
for (i = 0; i < diffs.addedCount; ++i) {
memcpy(walk, &diffs.added[i].addr.addr, 4); walk += 4;
memcpy(walk, &diffs.added[i].port, 2); walk += 2;
}
(...)
tr_variantDictAddRaw(&val, TR_KEY_added, tmp, walk - tmp);
(...)
}
