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Fixed bug in control_upload_rates when quota_limit=-1

This commit is contained in:
Magnus Jonsson 2003-12-15 17:46:47 +00:00
parent ac40cc37c5
commit 9663a7ce12
1 changed files with 27 additions and 7 deletions
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34
src/session.cpp
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@ -43,6 +43,7 @@ POSSIBILITY OF SUCH DAMAGE.
#include <boost/lexical_cast.hpp>
#include <boost/filesystem/convenience.hpp>
#include <boost/filesystem/exception.hpp>
#include <boost/limits.hpp>
#include "libtorrent/peer_id.hpp"
#include "libtorrent/torrent_info.hpp"
@ -74,7 +75,7 @@ namespace
int quota_limit; // bandwidth limit
int estimated_upload_capacity; // estimated channel bandwidth
bool operator < (const connection_info &other) const
bool operator < (connection_info &other) const
{
return estimated_upload_capacity < other.estimated_upload_capacity;
}
@ -92,7 +93,8 @@ namespace
int old_quota=allocated_quota;
allocated_quota+=amount;
allocated_quota=std::min(allocated_quota,quota_limit);
if(quota_limit!=-1)
allocated_quota=std::min(allocated_quota,quota_limit);
allocated_quota=std::max(0,allocated_quota);
return allocated_quota-old_quota;
}
@ -151,7 +153,7 @@ namespace
pi.quota_limit=p.send_quota_limit();
pi.estimated_upload_capacity=
p.has_data() ? std::max(10,(int)p.statistics().upload_rate()*11/10)
p.has_data() ? std::max(10,(int)ceil(p.statistics().upload_rate()*1.1f))
// If there's no data to send, upload capacity is practically 0.
// Here we set it to 1 though, because otherwise it will not be able
// to accept any quota at all, which may upset quota_limit balances.
@ -164,7 +166,17 @@ namespace
int sum_total_of_quota_limits=0;
for(int i=0;i<peer_info.size();i++)
sum_total_of_quota_limits+=peer_info[i].quota_limit;
{
int quota_limit=peer_info[i].quota_limit;
if(quota_limit==-1)
{
// quota_limit=-1 means infinite, so
// sum_total_of_quota_limits will be infinite too...
sum_total_of_quota_limits=std::numeric_limits<int>::max();
break;
}
sum_total_of_quota_limits+=quota_limit;
}
// This is how much total bandwidth that can be distributed.
int quota_left_to_distribute=std::min(upload_limit,sum_total_of_quota_limits);
@ -191,7 +203,7 @@ namespace
// Rounds upwards to avoid trying to give 0 bandwidth to someone (may get caught in an endless loop otherwise)
int num_peers_left_to_share_quota=peer_info.size()-i;
int try_to_give_to_this_peer=(quota_left_to_distribute + num_peers_left_to_share_quota-1)/num_peers_left_to_share_quota;
int try_to_give_to_this_peer=(quota_left_to_distribute+num_peers_left_to_share_quota-1)/num_peers_left_to_share_quota;
// But do not allocate more than the estimated upload capacity.
try_to_give_to_this_peer=std::min(
@ -222,9 +234,17 @@ namespace
peer_connection& p = *i->second;
sum_quota += p.send_quota();
sum_quota_limit += p.send_quota_limit();
if(p.send_quota_limit() == -1)
{
sum_quota_limit=std::numeric_limits<int>::max();
}
if(sum_quota_limit!=std::numeric_limits<int>::max())
{
sum_quota_limit += p.send_quota_limit();
}
}
assert(std::min(upload_limit,sum_quota_limit) - sum_quota < 100);
assert(sum_quota == std::min(upload_limit,sum_quota_limit));
}
#endif
}