sim: Move the draining interface into a separate base class

This patch moves the draining interface from SimObject to a separate
class that can be used by any object needing draining. However,
objects not visible to the Python code (i.e., objects not deriving
from SimObject) still depend on their parents informing them when to
drain. This patch also gets rid of the CountedDrainEvent (which isn't
really an event) and replaces it with a DrainManager.

1 files changed, 2 insertions, 14 deletions

diff --git a/src/mem/qport.hh b/src/mem/qport.hh
index b771f6984..dd5caa084 100644
--- a/src/mem/qport.hh
+++ b/src/mem/qport.hh
@@ -97,13 +97,7 @@ class QueuedSlavePort : public SlavePort
      * functional request. */
     bool checkFunctional(PacketPtr pkt) { return queue.checkFunctional(pkt); }
 
-    /**
-     * Hook for draining the queued port.
-     *
-     * @param de an event which is used to signal back to the caller
-     * @returns a number indicating how many times process will be called
-     */
-    unsigned int drain(Event *de) { return queue.drain(de); }
+    unsigned int drain(DrainManager *dm) { return queue.drain(dm); }
 };
 
 class QueuedMasterPort : public MasterPort
@@ -156,13 +150,7 @@ class QueuedMasterPort : public MasterPort
      * functional request. */
     bool checkFunctional(PacketPtr pkt) { return queue.checkFunctional(pkt); }
 
-    /**
-     * Hook for draining the queued port.
-     *
-     * @param de an event which is used to signal back to the caller
-     * @returns a number indicating how many times process will be called
-     */
-    unsigned int drain(Event *de) { return queue.drain(de); }
+    unsigned int drain(DrainManager *dm) { return queue.drain(dm); }
 };
 
 #endif // __MEM_QPORT_HH__