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This commit is contained in:
Arvid Norberg 2004-02-01 13:05:29 +00:00
parent 72d06a74a9
commit 80fd484e4d
1 changed files with 13 additions and 6 deletions
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19
src/policy.cpp
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@ -84,7 +84,10 @@ namespace
// have only one piece that we don't have, and it's the
// same piece for both peers. Then they might get into an
// infinite recursion, fighting to request the same blocks.
void request_a_block(torrent& t, peer_connection& c, peer_connection* ignore_peer = 0)
void request_a_block(
torrent& t
, peer_connection& c
, std::vector<peer_connection*> ignore = std::vector<peer_connection*>())
{
float time_for_last_piece = to_seconds(c.last_piece_time());
if (time_for_last_piece == 0) time_for_last_piece = 0.001f;
@ -167,11 +170,14 @@ namespace
i != t.end();
++i)
{
if (i->second == ignore_peer) continue;
// ignore all peers in the ignore list
if (std::find(ignore.begin(), ignore.end(), i->second) != ignore.end())
continue;
const std::deque<piece_block>& queue = i->second->download_queue();
const float weight = i->second->statistics().down_peak()
/ i->second->download_queue().size();
if (weight < down_speed
&& std::find_first_of(
busy_pieces.begin()
@ -187,7 +193,7 @@ namespace
if (peer == 0)
{
// we probably couldn't request the block because
// we are ignoring a certain peer
// we are ignoring some peers
return;
}
@ -210,9 +216,10 @@ namespace
c.send_request(block);
// the one we interrupted may need to request a new piece
// make sure it doesn't request the block we just requested
// by giving it as the ignore_block
request_a_block(t, *peer, &c);
// make sure it doesn't take over a block from the peer
// that just took over its block
ignore.push_back(&c);
request_a_block(t, *peer, ignore);
num_requests--;
}