From 57e301539bff2599974b7269a56377330c9b730e Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna@addaleax.net>
Date: Sun, 10 Jun 2018 16:40:13 +0200
Subject: src: enable more detailed memory tracking

This will enable more detailed heap snapshots based on
a newer V8 API.

This commit itself is not tied to that API and could
be backported.

PR-URL: https://github.com/nodejs/node/pull/21742
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 src/node_zlib.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/node_zlib.cc')

diff --git a/src/node_zlib.cc b/src/node_zlib.cc
index 169816d16f..031666e19a 100644
--- a/src/node_zlib.cc
+++ b/src/node_zlib.cc
@@ -646,7 +646,12 @@ class ZCtx : public AsyncWrap, public ThreadPoolWork {
     }
   }
 
-  size_t self_size() const override { return sizeof(*this); }
+  void MemoryInfo(MemoryTracker* tracker) const override {
+    tracker->TrackThis(this);
+    tracker->TrackFieldWithSize("dictionary", dictionary_len_);
+    tracker->TrackFieldWithSize("zlib memory",
+        zlib_memory_ + unreported_allocations_);
+  }
 
  private:
   void Ref() {
-- 
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