1 files changed, 47 insertions, 0 deletions
diff --git a/toolkit/components/glean/bindings/GleanMetric.h b/toolkit/components/glean/bindings/GleanMetric.h
new file mode 100644
index 0000000000..65ac75191d
--- /dev/null
+++ b/toolkit/components/glean/bindings/GleanMetric.h
@@ -0,0 +1,47 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_glean_GleanMetric_h
+#define mozilla_glean_GleanMetric_h
+
+#include "js/TypeDecls.h"
+#include "nsIGlobalObject.h"
+#include "nsWrapperCache.h"
+#include "nsClassHashtable.h"
+#include "nsTHashMap.h"
+#include "mozilla/DataMutex.h"
+
+namespace mozilla::Telemetry {
+enum class ScalarID : uint32_t;
+}  // namespace mozilla::Telemetry
+
+namespace mozilla::glean {
+
+class GleanMetric : public nsISupports, public nsWrapperCache {
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS;
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(GleanMetric);
+
+  nsISupports* GetParentObject() const { return mParent; }
+
+ protected:
+  GleanMetric(nsISupports* aParent) : mParent(aParent) {}
+  virtual ~GleanMetric() = default;
+  nsCOMPtr<nsISupports> mParent;
+};
+
+typedef nsUint32HashKey SubmetricIdHashKey;
+typedef nsTHashMap<SubmetricIdHashKey,
+                   std::tuple<Telemetry::ScalarID, nsString>>
+    SubmetricToLabeledMirrorMapType;
+typedef StaticDataMutex<UniquePtr<SubmetricToLabeledMirrorMapType>>
+    SubmetricToMirrorMutex;
+
+Maybe<SubmetricToMirrorMutex::AutoLock> GetLabeledMirrorLock();
+
+}  // namespace mozilla::glean
+
+#endif /* mozilla_glean_GleanMetric_h */