# HG changeset patch
# User one
# Date 1244266439 -32400
# Node ID 264123227f0d336a2b493aafde75b92ec68b1318
# Parent  82a292aa41ad6d4471797afa8bb90624f6914b1b
large tuple case (suggestion)

diff -r 82a292aa41ad -r 264123227f0d src/fdl/PSX.java
--- a/src/fdl/PSX.java	Sat Jun 06 14:23:02 2009 +0900
+++ b/src/fdl/PSX.java	Sat Jun 06 14:33:59 2009 +0900
@@ -233,6 +233,14 @@
 			throws IOException {
 		/**
 		 * Receive a command and data according to the command.
+		 * 
+		 * This read could be very large. Since this Linda server is a single
+		 * thread server, large reading is not welcome. In this case, we should
+		 * start another thread for the large reading. If someone access the
+		 * tuple it should be wait for the reading. This makes rather big changes.
+		 * send routines has the same problem also. I think it is better to limit
+		 * basic tuple size, and introduce cascading tuple type.
+		 * We should try it later.
 		 */
 	    receive(channel, command,LINDA_HEADER_SIZE); 
 	    int datalen = command.getInt(LINDA_DATA_LENGTH_OFFSET);
@@ -244,6 +252,9 @@
 	    }
 	    ByteBuffer data = ByteBuffer.allocate(datalen);
 	    data.order(ByteOrder.BIG_ENDIAN);
+//	    if (datalen>SINGLE_THREAD_READ_LIMIT) {
+//	    	... make a thread for reading and mark reading flag
+//	    } else
 	    receive(channel, data, datalen);
 		return data;
 	}