Include class relationship diagrams in network stack documentation.

net/docs/pools.dot

Index: net/docs/pools.dot
diff --git a/net/docs/pools.dot b/net/docs/pools.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8568bb9d0fbbb03db7137cd546ca4d336e8e7969
--- /dev/null
+++ b/net/docs/pools.dot
@@ -0,0 +1,109 @@
+digraph SocketPools {
+subgraph cluster_legend {
+          label="legend";
+	a;
+	factory;
+	derived_class;
+	pure_ABC [style=dotted];
+	mixed_ABC [style=dashed];
+	template_class [shape=diamond]; # Link will name parameter(s)
+
+	whole;
+
+   	  whole -> referenced_part		# Raw pointer
+	      [dir=back, arrowhead=none, arrowtail=odiamond];
+
+	  whole -> owned_part		# Member of scoped_ptr<>
+	      [dir=back, arrowhead=none, arrowtail=diamond];
+	  
+	  whole -> reference_counted_semi_owned_part
+	      [dir=back, arrowhead=none, arrowtail=diamond, color=red];
+    
+	  derived_class -> base_class
+ 	      [dir=both, arrowhead=empty, arrowtail=none];
+
+	  derived_class -> pure_ABC
+	      [dir=both, arrowhead=empty, arrowtail=none, style=dashed];
+
+	  # May want to put inside rank=same subgraph.
+	  factory -> generated_object [arrowhead=veevee, weight=0];
+
+	  a -> b [headlabel="0..*", taillabel="1..*",
+	          label="associated with",
+	          arrowhead="none"];
+
+
+};
+
+
+
+    ConnectJob [style=dashed];
+    ConnectJob_Delegate [style=dotted, label="ConnectJob::Delegate"];
+    ClientSocketPoolBaseHelper;
+
+    ClientSocketPoolBase [shape=diamond];
+    HigherLayeredPool [style=dotted];
+    LowerLayeredPool [style=dotted];
+    ClientSocketPool [style=dotted];
+    TransportSocketParams;	# RC
+    TransportConnectJobHelper;
+    TransportConnectJob;
+    ClientSocketPoolBaseHelper_ConnectJobFactory
+        [style=dotted, label="ClientSocketPoolBaseHelper::\nConnectJobFactory"];
+    ClientSocketPoolBase_ConnectJobFactory
+        [style=dotted, shape=diamond,
+	 label="ClientSocketPoolBase::\nConnectJobFactory"];
+    TransportConnectJobFactory;
+    ClientSocketPoolBase_ConnectJobFactoryAdaptor
+        [shape=diamond,
+	 label="ClientSocketPoolBase::\nConnectJobFactoryAdaptor"];
+
+    ClientSocketPoolBase_ConnectJobFactoryAdaptor ->
+        ClientSocketPoolBaseHelper_ConnectJobFactory
+ 	    [dir=both, arrowhead=empty, arrowtail=none];
+
+    ClientSocketPoolBase_ConnectJobFactoryAdaptor ->
+        ClientSocketPoolBase_ConnectJobFactory
+	    [dir=back, arrowhead=none, arrowtail=diamond];
+
+    TransportConnectJobFactory -> ClientSocketPoolBase_ConnectJobFactory
+        [dir=both, arrowhead=empty, arrowtail=none,
+	 label="TransportSocketParams"]
+
+    TransportConnectJob -> ConnectJob
+        [dir=both, arrowhead=empty, arrowtail=none];
+
+    ClientSocketPoolBaseHelper -> ConnectJob_Delegate 
+        [arrowtail=none, arrowhead=empty, dir=both];
+    ClientSocketPool -> LowerLayeredPool
+        [arrowtail=none, arrowhead=empty, dir=both];
+
+    ClientSocketPoolBaseHelper -> HigherLayeredPool
+        [dir=back, arrowhead=none, arrowtail=odiamond, headlabel="*"];
+    ClientSocketPoolBaseHelper -> LowerLayeredPool
+        [dir=back, arrowhead=none, arrowtail=odiamond, headlabel="*"];
+    ClientSocketPoolBaseHelper -> ClientSocketPoolBaseHelper_ConnectJobFactory
+        [dir=back, arrowhead=none, arrowtail=diamond];
+    ClientSocketPoolBase -> ClientSocketPoolBaseHelper
+        [dir=back, arrowhead=none, arrowtail=diamond];
+
+    TransportConnectJobHelper -> TransportSocketParams
+        [dir=back, arrowhead=none, arrowtail=diamond, color=red];
+
+    TransportConnectJob -> TransportConnectJobHelper
+        [dir=back, arrowhead=none, arrowtail=diamond];
+
+    TransportClientSocketPool -> ClientSocketPool
+        [dir=both, arrowhead=empty, arrowtail=none];
+
+    TransportClientSocketPool -> ClientSocketPoolBase
+        [dir=back, arrowhead=none, arrowtail=diamond,
+	 label="TransportSocketParams"];
+    ClientSocketPoolBaseHelper_ConnectJobFactory -> ConnectJob [arrowhead=veevee];
+    ClientSocketPoolBase_ConnectJobFactory -> ConnectJob  [arrowhead=veevee];
+
+    ConnectJob -> ConnectJob_Delegate
+        [dir=back, arrowhead=none, arrowtail=odiamond];
+
+}
+