mirror/transmission
1
0
Fork 0
mirror of https://github.com/transmission/transmission synced 2024-12-25 09:13:06 +00:00
Code Issues Releases Wiki Activity

when we free the UDP trackers on shutdown, make sure to cancel any DNS requests that are pending for them.

Browse source
This commit is contained in:
Jordan Lee 2014-01-20 23:18:52 +00:00
parent 49c4b8b42a
commit 1637da5c1d
1 changed files with 9 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
libtransmission/announcer-udp.c
View file

@ -431,7 +431,7 @@ struct tau_tracker
char * host;
int port;
bool is_asking_dns;
struct evdns_getaddrinfo_request * dns_request;
struct evutil_addrinfo * addr;
time_t addr_expiration_time;
@ -453,6 +453,8 @@ tau_tracker_free (struct tau_tracker * t)
{
if (t->addr)
evutil_freeaddrinfo (t->addr);
if (t->dns_request != NULL)
evdns_getaddrinfo_cancel (t->dns_request);
tr_ptrArrayDestruct (&t->announces, (PtrArrayForeachFunc)tau_announce_request_free);
tr_ptrArrayDestruct (&t->scrapes, (PtrArrayForeachFunc)tau_scrape_request_free);
tr_free (t->host);
@ -493,7 +495,7 @@ tau_tracker_on_dns (int errcode, struct evutil_addrinfo *addr, void * vtracker)
{
struct tau_tracker * tracker = vtracker;
tracker->is_asking_dns = false;
tracker->dns_request = NULL;
if (errcode)
{
@ -535,7 +537,7 @@ tau_tracker_send_reqs (struct tau_tracker * tracker)
tr_ptrArray * reqs;
const time_t now = tr_time ();
assert (tracker->is_asking_dns == false);
assert (tracker->dns_request == NULL);
assert (tracker->connecting_at == 0);
assert (tracker->addr != NULL);
assert (tracker->connection_expiration_time > now);
@ -672,18 +674,17 @@ tau_tracker_upkeep (struct tau_tracker * tracker)
return;
/* if we don't have an address yet, try & get one now. */
if (!tracker->addr && !tracker->is_asking_dns)
if (!tracker->addr && (tracker->dns_request == NULL))
{
struct evutil_addrinfo hints;
memset (&hints, 0, sizeof (hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
tracker->is_asking_dns = true;
dbgmsg (tracker->host, "Trying a new DNS lookup");
evdns_getaddrinfo (tracker->session->evdns_base,
tracker->host, NULL, &hints,
tau_tracker_on_dns, tracker);
tracker->dns_request = evdns_getaddrinfo (tracker->session->evdns_base,
tracker->host, NULL, &hints,
tau_tracker_on_dns, tracker);
return;
}