ruby: simple network: store Switch* in PerfectSwitch and Throttle

There are two reasons for doing so:

a. provide a source of clock to PerfectSwitch. A follow on patch removes sender
and receiver pointers from MessageBuffer means that the object owning the
buffer should have some way of providing timing info.

b. schedule events.  A follow on patch removes the consumer class.  So the
PerfectSwitch needs some EventManager object to schedule events on its own.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/mem/ruby/network/simple/PerfectSwitch.hh b/src/mem/ruby/network/simple/PerfectSwitch.hh
index f55281d54..dddbdc9ba 100644
--- a/src/mem/ruby/network/simple/PerfectSwitch.hh
+++ b/src/mem/ruby/network/simple/PerfectSwitch.hh
@@ -86,7 +86,8 @@ class PerfectSwitch : public Consumer
 
     void operateVnet(int vnet);
 
-    SwitchID m_switch_id;
+    const SwitchID m_switch_id;
+    Switch * const m_switch;
 
     // vector of queues from the components
     std::vector<std::vector<MessageBuffer*> > m_in;