[gem5-dev] changeset in gem5: stats: Provide a mechanism to get a callback ...

[Mitchell Hayenga]

changeset 648b62f95015 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=648b62f95015
description:
        stats: Provide a mechanism to get a callback when stats are dumped.

        This mechanism is useful for dumping output that is correlated with 
stats
        dumping, but isn't tracked by the gem5 statistics.

diffstat:

 src/base/statistics.cc          |  7 +++++++
 src/base/statistics.hh          |  6 ++++++
 src/python/m5/stats/__init__.py |  2 ++
 src/python/swig/stats.i         |  8 ++++++++
 4 files changed, 23 insertions(+), 0 deletions(-)

diffs (77 lines):

diff -r c7d6e967e692 -r 648b62f95015 src/base/statistics.cc
--- a/src/base/statistics.cc    Tue Jun 05 01:23:08 2012 -0400
+++ b/src/base/statistics.cc    Tue Jun 05 01:23:08 2012 -0400
@@ -433,6 +433,7 @@
     return root ? root->str() : "";
 }
 
+CallbackQueue dumpQueue;
 CallbackQueue resetQueue;
 
 void
@@ -458,6 +459,12 @@
     _enabled = true;
 }
 
+void
+registerDumpCallback(Callback *cb)
+{
+    dumpQueue.add(cb);
+}
+
 } // namespace Stats
 
 void
diff -r c7d6e967e692 -r 648b62f95015 src/base/statistics.hh
--- a/src/base/statistics.hh    Tue Jun 05 01:23:08 2012 -0400
+++ b/src/base/statistics.hh    Tue Jun 05 01:23:08 2012 -0400
@@ -3135,6 +3135,12 @@
  */
 void registerResetCallback(Callback *cb);
 
+/**
+ * Register a callback that should be called whenever statistics are
+ * about to be dumped
+ */
+void registerDumpCallback(Callback *cb);
+
 std::list<Info *> &statsList();
 
 } // namespace Stats
diff -r c7d6e967e692 -r 648b62f95015 src/python/m5/stats/__init__.py
--- a/src/python/m5/stats/__init__.py   Tue Jun 05 01:23:08 2012 -0400
+++ b/src/python/m5/stats/__init__.py   Tue Jun 05 01:23:08 2012 -0400
@@ -103,6 +103,8 @@
         return
     lastDump = curTick
 
+    internal.stats.processDumpQueue()
+
     prepare()
 
     for output in outputList:
diff -r c7d6e967e692 -r 648b62f95015 src/python/swig/stats.i
--- a/src/python/swig/stats.i   Tue Jun 05 01:23:08 2012 -0400
+++ b/src/python/swig/stats.i   Tue Jun 05 01:23:08 2012 -0400
@@ -71,6 +71,13 @@
     resetQueue.process();
 }
 
+inline void
+processDumpQueue()
+{
+    extern CallbackQueue dumpQueue;
+    dumpQueue.process();
+}
+
 inline char *
 PCC(const char *string)
 {
@@ -146,6 +153,7 @@
                     Tick when = curTick(), Tick repeat = 0);
 
 void processResetQueue();
+void processDumpQueue();
 void enable();
 bool enabled();
 
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