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(trunk libT) #3329 "connection problems when downloading" -- randomize the peer arrays so that all untested peers will have an equal chance of being used. Suggested by Longinus00

This commit is contained in:
Charles Kerr 2010-06-22 16:31:38 +00:00
parent e6cf296a68
commit 610c912c5a
1 changed files with 29 additions and 18 deletions
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13
libtransmission/peer-mgr.c
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@ -2498,8 +2498,14 @@ rechokeDownloads( Torrent * t )
/* separate the peers into "good" (ones with a low cancel-to-block ratio),
* untested peers, and "bad" (ones with a high cancel-to-block ratio).
* That's the order in which we'll choose who to show interest in */
for( i=0; i<peerCount; ++i )
{
/* Randomize the peer array so the peers in the three groups will be unsorted... */
int n = peerCount;
tr_peer ** peers = tr_memdup( tr_ptrArrayBase( &t->peers ), n * sizeof( tr_peer * ) );
while( n > 0 )
{
const int i = tr_cryptoWeakRandInt( n );
tr_peer * peer = tr_ptrArrayNth( &t->peers, i );
if( !isPeerInteresting( t->tor, peer ) )
@ -2522,6 +2528,11 @@ rechokeDownloads( Torrent * t )
else
bad[badCount++] = peer;
}
tr_removeElementFromArray( peers, i, sizeof(tr_peer*), n-- );
}
tr_free( peers );
}
t->interestedCount = 0;