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use ByteCache for chunks in/out

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This commit is contained in:
zzz
2012-09-17 21:32:05 +00:00
parent 259c28f8c1
commit 2b14d32bea
8 changed files with 88 additions and 16 deletions
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24
apps/i2psnark/java/src/org/klomp/snark/Message.java
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@ -23,8 +23,13 @@ package org.klomp.snark;
import java.io.DataOutputStream;
import java.io.IOException;
// Used to queue outgoing connections
// sendMessage() should be used to translate them to wire format.
import net.i2p.data.ByteArray;
import net.i2p.util.ByteCache;
/**
* Used to queue outgoing connections
* sendMessage() should be used to translate them to wire format.
*/
class Message
{
final static byte KEEP_ALIVE = -1;
@ -69,6 +74,9 @@ class Message
// now unused
//SimpleTimer.TimedEvent expireEvent;
private static final int BUFSIZE = PeerState.PARTSIZE;
private static final ByteCache _cache = ByteCache.getInstance(16, BUFSIZE);
/** Utility method for sending a message through a DataStream. */
void sendMessage(DataOutputStream dos) throws IOException
{
@ -79,11 +87,15 @@ class Message
return;
}
ByteArray ba;
// Get deferred data
if (data == null && dataLoader != null) {
data = dataLoader.loadData(piece, begin, length);
if (data == null)
ba = dataLoader.loadData(piece, begin, length);
if (ba == null)
return; // hmm will get retried, but shouldn't happen
data = ba.getData();
} else {
ba = null;
}
// Calculate the total length in bytes
@ -139,6 +151,10 @@ class Message
// Send actual data
if (type == BITFIELD || type == PIECE || type == EXTENSION)
dos.write(data, off, len);
// Was pulled from cache in Storage.getPiece() via dataLoader
if (ba != null && ba.getData().length == BUFSIZE)
_cache.release(ba, false);
}
@Override