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optimized http tracker url construction by moving most of it over to snprintf

This commit is contained in:
Arvid Norberg 2009-05-14 22:10:00 +00:00
parent 1eda63c4f5
commit 6e39f24dcf
1 changed files with 14 additions and 34 deletions
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48
src/http_tracker_connection.cpp
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@ -116,26 +116,23 @@ namespace libtorrent
url += "?";
url += "info_hash=";
url += escape_string(
reinterpret_cast<const char*>(tracker_req().info_hash.begin()), 20);
url += escape_string((const char*)&tracker_req().info_hash[0], 20);
if (tracker_req().kind == tracker_request::announce_request)
{
url += "&peer_id=";
url += escape_string(
reinterpret_cast<const char*>(tracker_req().pid.begin()), 20);
url += "&port=";
url += to_string(tracker_req().listen_port).elems;
url += "&uploaded=";
url += to_string(tracker_req().uploaded).elems;
url += "&downloaded=";
url += to_string(tracker_req().downloaded).elems;
url += "&left=";
url += to_string(tracker_req().left).elems;
char str[1024];
snprintf(str, sizeof(str), "&peer_id=%s&port=%d&uploaded=%lld"
"&downloaded=%lld&left=%lld&compact=1&numwant=%d&key=%x&no_peer_id=1"
#ifndef TORRENT_DISABLE_ENCRYPTION
"&supportcrypto=1"
#endif
, escape_string((const char*)&tracker_req().pid[0], 20).c_str()
, tracker_req().listen_port
, tracker_req().uploaded
, tracker_req().downloaded
, tracker_req().left
, tracker_req().num_want
, tracker_req().key);
if (tracker_req().event != tracker_request::none)
{
@ -144,16 +141,6 @@ namespace libtorrent
url += event_string[tracker_req().event - 1];
}
url += "&key=";
char key[200];
snprintf(key, 200, "%x", tracker_req().key);
url += key;
url += "&compact=1";
url += "&numwant=";
url += to_string((std::min)(tracker_req().num_want, 999)).elems;
if (settings.announce_ip != address())
{
error_code ec;
@ -161,9 +148,6 @@ namespace libtorrent
if (!ec) url += "&ip=" + ip;
}
#ifndef TORRENT_DISABLE_ENCRYPTION
url += "&supportcrypto=1";
#endif
if (!tracker_req().ipv6.empty())
{
url += "&ipv6=";
@ -175,10 +159,6 @@ namespace libtorrent
url += "&ipv4=";
url += tracker_req().ipv4;
}
// extension that tells the tracker that
// we don't need any peer_id's in the response
url += "&no_peer_id=1";
}
m_tracker_connection.reset(new http_connection(m_ios, m_cc