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Unified Diff: Source/platform/heap/ThreadState.h

Issue 1203493004: [tracing] Adding class-wise memory statistics to blink gc memory dumps (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 6 months ago
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Index: Source/platform/heap/ThreadState.h
diff --git a/Source/platform/heap/ThreadState.h b/Source/platform/heap/ThreadState.h
index 45b45bf5fe06307a0662e8690afac5d131055572..ac88a64f235f9fb8977451fcff5299a541f80f83 100644
--- a/Source/platform/heap/ThreadState.h
+++ b/Source/platform/heap/ThreadState.h
@@ -489,6 +489,20 @@ public:
// Visit all persistents allocated on this thread.
void visitPersistents(Visitor*);
+ struct GCSnapshotInfo {
+ // Map from base-classes to a snapshot class-ids (used as index below).
+ using ClassTagMap = HashMap<const GCInfo*, size_t>;
+ ClassTagMap classTags;
+
+ // Map from class-id (index) to count/size.
+ Vector<int> liveCount;
+ Vector<int> deadCount;
+ Vector<size_t> liveSize;
+ Vector<size_t> deadSize;
+
+ size_t getClassTag(const GCInfo*);
+ };
+
#if ENABLE(GC_PROFILING)
const GCInfo* findGCInfo(Address);
static const GCInfo* findGCInfoFromAllThreads(Address);

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