A signed 64-bit integer can be stored as two 32-bit integers in Actionscript, but converting

them to a single number becomes inconvenient for values larger than an single int, and tricky 
when the value is negative (i.e. in two's complement split into two words, with sign bit only
in the high int). 

Instead of splitting a long into two ints, we store it internally as a byte array that corresponds 
exactly to Java's serialized version (sequence of eight bytes, high byte first), and we provide 
accessors to convert to and from Actionscript numbers. This makes Java Long values readable in 
Actionscript, and vice versa.

Unfortunately, Actionscript does not have a native 64-bit integer - the closest equivalent is the 
Number class. Since this is a double float with a 52-bit mantissa, very large long values will 
suffer precision loss during conversion. 




git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4811 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/presents/data/ConMgrStats.as

@@ -87,8 +87,8 @@ public class ConMgrStats extends SimpleStreamableObject
         overQueueSize = ins.readInt();
         connects = ins.readInt();
         disconnects = ins.readInt();
-        bytesIn = new Long(ins.readInt(), ins.readInt());
-        bytesOut = new Long(ins.readInt(), ins.readInt());
+        bytesIn = ins.readField(Long) as Long;
+        bytesOut = ins.readField(Long) as Long;
         msgsIn = ins.readInt();
         msgsOut = ins.readInt();
     }
@@ -103,10 +103,8 @@ public class ConMgrStats extends SimpleStreamableObject
         out.writeInt(overQueueSize);
         out.writeInt(connects);
         out.writeInt(disconnects);
-        out.writeInt(bytesIn == null ? 0 : bytesIn.low);
-        out.writeInt(bytesIn == null ? 0 : bytesIn.high);
-        out.writeInt(bytesOut == null ? 0 : bytesOut.low);
-        out.writeInt(bytesOut == null ? 0 : bytesOut.high);
+        out.writeField(bytesIn);
+        out.writeField(bytesOut);
         out.writeInt(msgsIn);
         out.writeInt(msgsOut);
     }