2004-12-03 jrandom

* Toss in a small pool of threads (3) to execute the events queued up with
      the SimpleTimer, as we do currently see the occational event
      notification spiking up to a second or so.
    * Implement a SAM client API in java, useful for event based streaming (or
      for testing the SAM bridge)
    * Added support to shut down the SAM bridge on OOM (useful if the SAM
      bridge is being run outside of the router).
    * Include the SAM test code in the sam.jar
    * Remove an irrelevent warning message from SAM, which was caused by
      perfectly normal operation due to a session being closed.
    * Removed some unnecessary synchronization in the streaming lib's
      PacketQueue
    * More quickly clean up the memory used by the streaming lib by
      immediately killing each packet's resend job as soon as it is ACKed (or
      cancelled), so that there are no longer any valid pointers to the
      (potentially 32KB) packet.
    * Fixed the timestamps dumped to stdout when debugging the PacketHandler.
    * Drop packets that would expand our inbound window beyond our maximum
      buffer size (default 32 messages)
    * Always read the ACK/NACK data from the verified packets received, even
      if we are going to drop them
    * Always adjust the window when there are messages ACKed, though do not
      change its size except as before.
    * Streamlined some synchronization in the router's I2CP handling
    * Streamlined some memory allocation in the SAM bridge
    * Default the streaming lib to disconnect on inactivity, rather than send
      an empty message.
this still doesnt get the BT to where it needs to be, or fix the timeout problem,
but i dont like having so many commits outstanding and these updates are sound

apps/streaming/java/src/net/i2p/client/streaming/MessageInputStream.java

@@ -33,9 +33,9 @@ public class MessageInputStream extends InputStream {
     private List _readyDataBlocks;
     private int _readyDataBlockIndex;
     /** highest message ID used in the readyDataBlocks */
-    private long _highestReadyBlockId;
+    private volatile long _highestReadyBlockId;
     /** highest overall message ID */
-    private long _highestBlockId;
+    private volatile long _highestBlockId;
     /** 
      * Message ID (Long) to ByteArray for blocks received
      * out of order when there are lower IDs not yet 
@@ -74,15 +74,13 @@ public class MessageInputStream extends InputStream {
     
     /** What is the highest block ID we've completely received through? */
     public long getHighestReadyBockId() { 
-        synchronized (_dataLock) {
-            return _highestReadyBlockId; 
-        }
+        // not synchronized as it doesnt hurt to read a too-low value
+        return _highestReadyBlockId; 
     }
     
     public long getHighestBlockId() { 
-        synchronized (_dataLock) {
-            return _highestBlockId;
-        }
+        // not synchronized as it doesnt hurt to read a too-low value
+        return _highestBlockId;
     }
     
     /**
@@ -394,6 +392,21 @@ public class MessageInputStream extends InputStream {
         }
     }
     
+    public int getTotalReadySize() {
+        synchronized (_dataLock) {
+            if (_locallyClosed) return 0;
+            int numBytes = 0;
+            for (int i = 0; i < _readyDataBlocks.size(); i++) {
+                ByteArray cur = (ByteArray)_readyDataBlocks.get(i);
+                if (i == 0)
+                    numBytes += cur.getData().length - _readyDataBlockIndex;
+                else
+                    numBytes += cur.getData().length;
+            }
+            return numBytes;
+        }
+    }
+    
     public void close() {
         synchronized (_dataLock) {
             _readyDataBlocks.clear();