bool is_pinging(IP_Port ipp, uint64_t ping_id) // O(n) TODO: replace this with something else.
{
if (ipp.ip.i == 0 && ping_id == 0)
return false;
size_t i, id;
remove_timeouts();
for (i=0; i<num_pings; i++) {
id = (pos_pings + i) % PING_NUM_MAX;
// ping_id = 0 means match any id
if ((ipp_eq(pings[id].ipp, ipp) || ipp.ip.i == 0) && (pings[id].id == ping_id || ping_id == 0)) {
return true;
}
}
return false;
}
static size_t add_ping(PING *ping, IP_Port ipp) // O(n)
{
size_t p;
remove_timeouts(ping);
/* Remove oldest ping if full buffer. */
if (ping->num_pings == PING_NUM_MAX) {
ping->num_pings--;
ping->pos_pings = (ping->pos_pings + 1) % PING_NUM_MAX;
}
/* Insert new ping at end of list. */
p = (ping->pos_pings + ping->num_pings) % PING_NUM_MAX;
ping->pings[p].ip_port = ipp;
ping->pings[p].timestamp = unix_time();
ping->pings[p].id = random_64b();
ping->num_pings++;
return ping->pings[p].id;
}
uint64_t add_ping(IP_Port ipp) // O(n)
{
size_t p;
remove_timeouts();
// Remove oldest ping if full buffer
if (num_pings == PING_NUM_MAX) {
num_pings--;
pos_pings = (pos_pings + 1) % PING_NUM_MAX;
}
// Insert new ping at end of list
p = (pos_pings + num_pings) % PING_NUM_MAX;
pings[p].ipp = ipp;
pings[p].timestamp = now();
pings[p].id = random_64b();
num_pings++;
return pings[p].id;
}
static bool is_pinging(PING *ping, IP_Port ipp, uint64_t ping_id) // O(n) TODO: Replace this with something else.
{
/* shouldn't that be an OR ? */
if (!ip_isset(&ipp.ip) && ping_id == 0)
return false;
size_t i, id;
remove_timeouts(ping);
for (i = 0; i < ping->num_pings; i++) {
id = (ping->pos_pings + i) % PING_NUM_MAX;
/* ping_id = 0 means match any id. */
if ((!ip_isset(&ipp.ip) || ipport_equal(&ping->pings[id].ip_port, &ipp)) &&
(ping->pings[id].id == ping_id || ping_id == 0)) {
return true;
}
}
return false;
}
/* checks if ip/port or ping_id are already in the list to ping
* if both are set, both must match, otherwise the set must match
*
* returns 0 if neither is set or no match was found
* returns the (index + 1) of the match if one was found
*/
static int is_pinging(PING *ping, IP_Port ipp, size_t ping_id)
{
// O(n) TODO: Replace this with something else.
/* at least one MUST be set */
size_t ip_valid = ip_isset(&ipp.ip);
if (!ip_valid && !ping_id)
return 0;
size_t i;
remove_timeouts(ping);
for (i = 0; i < ping->num_pings; i++) {
size_t id = (ping->pos_pings + i) % PING_NUM_MAX;
if (!ping_id || (ping->pings[id].id == ping_id))
if (!ip_valid || ipport_equal(&ping->pings[id].ip_port, &ipp))
return id + 1;
}
return 0;
}
