Port: Add protocol-agnostic ports in the port hierarchy

This patch adds an additional level of ports in the inheritance
hierarchy, separating out the protocol-specific and protocl-agnostic
parts. All the functionality related to the binding of ports is now
confined to use BaseMaster/BaseSlavePorts, and all the
protocol-specific parts stay in the Master/SlavePort. In the future it
will be possible to add other protocol-specific implementations.

The functions used in the binding of ports, i.e. getMaster/SlavePort
now use the base classes, and the index parameter is updated to use
the PortID typedef with the symbolic InvalidPortID as the default.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/python/swig/pyobject.cc b/src/python/swig/pyobject.cc
index 05698e794..fc4435781 100644
--- a/src/python/swig/pyobject.cc
+++ b/src/python/swig/pyobject.cc
@@ -102,8 +102,8 @@ connectPorts(SimObject *o1, const std::string &name1, int i1,
     }
 
     // generic master/slave port connection
-    MasterPort& masterPort = mo1->getMasterPort(name1, i1);
-    SlavePort& slavePort   = mo2->getSlavePort(name2, i2);
+    BaseMasterPort& masterPort = mo1->getMasterPort(name1, i1);
+    BaseSlavePort& slavePort   = mo2->getSlavePort(name2, i2);
 
     masterPort.bind(slavePort);