Add counters that automatically track object sizes and counts.

src/v8-counters.h

-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 11 matching lines @@
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_V8_COUNTERS_H_
 #define V8_V8_COUNTERS_H_
 
 #include "allocation.h"
 #include "counters.h"
+#include "objects.h"
 #include "v8globals.h"
 
 namespace v8 {
 namespace internal {
 
 #define HISTOGRAM_TIMER_LIST(HT)                                      \
   /* Garbage collection timers. */                                    \
   HT(gc_compactor, V8.GCCompactor)                                    \
   HT(gc_scavenger, V8.GCScavenger)                                    \
   HT(gc_context, V8.GCContext) /* GC context cleanup time */          \
@@ skipping 236 matching lines @@
   HistogramTimer* name() { return &name##_; }
   HISTOGRAM_TIMER_LIST(HT)
 #undef HT
 
 #define SC(name, caption) \
   StatsCounter* name() { return &name##_; }
   STATS_COUNTER_LIST_1(SC)
   STATS_COUNTER_LIST_2(SC)
 #undef SC
 
+#define SC(name) \
+  StatsCounter* count_of_##name() { return &count_of_##name##_; } \
+  StatsCounter* size_of_##name() { return &size_of_##name##_; }
+  INSTANCE_TYPE_LIST(SC)
+#undef SC
+
   enum Id {
 #define RATE_ID(name, caption) k_##name,
     HISTOGRAM_TIMER_LIST(RATE_ID)
 #undef RATE_ID
 #define COUNTER_ID(name, caption) k_##name,
     STATS_COUNTER_LIST_1(COUNTER_ID)
     STATS_COUNTER_LIST_2(COUNTER_ID)
 #undef COUNTER_ID
+#define COUNTER_ID(name) kCountOf##name, kSizeOf##name,
+    INSTANCE_TYPE_LIST(COUNTER_ID)
+#undef COUNTER_ID
 #define COUNTER_ID(name) k_##name,
     STATE_TAG_LIST(COUNTER_ID)
 #undef COUNTER_ID
     stats_counter_count
   };
 
   StatsCounter* state_counters(StateTag state) {
     return &state_counters_[state];
   }
 
  private:
 #define HT(name, caption) \
   HistogramTimer name##_;
   HISTOGRAM_TIMER_LIST(HT)
 #undef HT
 
 #define SC(name, caption) \
   StatsCounter name##_;
   STATS_COUNTER_LIST_1(SC)
   STATS_COUNTER_LIST_2(SC)
 #undef SC
 
+#define SC(name) \
+  StatsCounter size_of_##name##_; \
+  StatsCounter count_of_##name##_;
+  INSTANCE_TYPE_LIST(SC)
+#undef SC
+
   enum {
 #define COUNTER_ID(name) __##name,
     STATE_TAG_LIST(COUNTER_ID)
 #undef COUNTER_ID
     kSlidingStateWindowCounterCount
   };
 
   // Sliding state window counters.
   StatsCounter state_counters_[kSlidingStateWindowCounterCount];
   friend class Isolate;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_COUNTERS_H_