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refactor m_dhtgetMap with 3 helper functions. now allow multiple listeners per targethash.

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This commit is contained in:
Miguel Freitas 2014-06-25 14:44:12 -03:00
parent 5a2b4dd3ff
commit 67fd2184cd
1 changed files with 38 additions and 31 deletions
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69
src/twister.cpp
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@ -49,7 +49,7 @@ static bool m_usingProxy;
static int num_outstanding_resume_data;
static CCriticalSection cs_dhtgetMap;
static map<sha1_hash, alert_manager*> m_dhtgetMap;
static map<sha1_hash, std::list<alert_manager*> > m_dhtgetMap;
static CCriticalSection cs_twister;
static map<std::string, bool> m_specialResources;
@ -103,6 +103,37 @@ sha1_hash dhtTargetHash(std::string const &username, std::string const &resource
return hasher(buf.data(), buf.size()).final();
}
void dhtgetMapAdd(sha1_hash &ih, alert_manager *am)
{
LOCK(cs_dhtgetMap);
m_dhtgetMap[ih].push_back(am);
}
void dhtgetMapRemove(sha1_hash &ih, alert_manager *am)
{
LOCK(cs_dhtgetMap);
std::map<sha1_hash, std::list<alert_manager*> >::iterator mi = m_dhtgetMap.find(ih);
if( mi != m_dhtgetMap.end() ) {
std::list<alert_manager *> &amList = (*mi).second;
amList.remove(am);
if( !amList.size() ) {
m_dhtgetMap.erase(ih);
}
}
}
void dhtgetMapPost(sha1_hash &ih, const alert &a)
{
LOCK(cs_dhtgetMap);
std::map<sha1_hash, std::list<alert_manager*> >::iterator mi = m_dhtgetMap.find(ih);
if( mi != m_dhtgetMap.end() ) {
std::list<alert_manager *> &amList = (*mi).second;
BOOST_FOREACH(alert_manager *am, amList) {
am->post_alert(a);
}
}
}
torrent_handle startTorrentUser(std::string const &username, bool following)
{
bool userInTxDb = usernameExists(username); // keep this outside cs_twister to avoid deadlock
@ -598,18 +629,7 @@ void ThreadSessionAlerts()
r && r->type() == entry::string_t &&
t && t->type() == entry::string_t) {
sha1_hash ih = dhtTargetHash(n->string(), r->string(), t->string());
LOCK(cs_dhtgetMap);
std::map<sha1_hash, alert_manager*>::iterator mi = m_dhtgetMap.find(ih);
if( mi != m_dhtgetMap.end() ) {
alert_manager *am = (*mi).second;
am->post_alert(*rd);
} else {
/* FIXME: we could use multiple dht responses instead of ignoring here.
printf("ThreadSessionAlerts: received dht [%s,%s,%s] but no alert_manager registered\n",
n->string().c_str(), r->string().c_str(), t->string().c_str() );
*/
}
dhtgetMapPost(ih,*rd);
}
}
}
@ -687,15 +707,9 @@ void ThreadSessionAlerts()
dd->m_is_neighbor, dd->m_got_data);
#endif
sha1_hash ih = dhtTargetHash(dd->m_username, dd->m_resource, dd->m_multi ? "m" : "s");
{
LOCK(cs_dhtgetMap);
std::map<sha1_hash, alert_manager*>::iterator mi = m_dhtgetMap.find(ih);
if( mi != m_dhtgetMap.end() && !dd->m_got_data ) {
// post alert to return from wait_for_alert in dhtget()
alert_manager *am = (*mi).second;
am->post_alert(*dd);
}
if( !dd->m_got_data ) {
// no data: post alert to return from wait_for_alert in dhtget()
dhtgetMapPost(ih,*dd);
}
if( neighborCheck.count(ih) ) {
@ -1396,11 +1410,7 @@ Value dhtget(const Array& params, bool fHelp)
alert_manager am(10, alert::dht_notification);
sha1_hash ih = dhtTargetHash(strUsername,strResource,strMulti);
{
LOCK(cs_dhtgetMap);
m_dhtgetMap[ih] = &am;
}
dhtgetMapAdd(ih, &am);
ses->dht_getData(strUsername, strResource, multi);
@ -1447,10 +1457,7 @@ Value dhtget(const Array& params, bool fHelp)
}
}
{
LOCK(cs_dhtgetMap);
m_dhtgetMap.erase(ih);
}
dhtgetMapRemove(ih,&am);
return ret;
}