1 files changed, 57 insertions, 0 deletions
diff --git a/toolkit/components/telemetry/core/EventInfo.h b/toolkit/components/telemetry/core/EventInfo.h
new file mode 100644
index 0000000000..b80f85af92
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+++ b/toolkit/components/telemetry/core/EventInfo.h
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* 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 TelemetryEventInfo_h__
+#define TelemetryEventInfo_h__
+
+#include "TelemetryCommon.h"
+
+// This module is internal to Telemetry. The structures here hold data that
+// describe events.
+// It should only be used by TelemetryEventData.h and TelemetryEvent.cpp.
+//
+// For the public interface to Telemetry functionality, see Telemetry.h.
+
+namespace {
+
+struct CommonEventInfo {
+  // Indices for the category and expiration strings.
+  uint32_t category_offset;
+  uint32_t expiration_version_offset;
+
+  // The index and count for the extra key offsets in the extra table.
+  uint32_t extra_index;
+  uint32_t extra_count;
+
+  // The dataset this event is recorded in.
+  uint32_t dataset;
+
+  // Which processes to record this event in.
+  mozilla::Telemetry::Common::RecordedProcessType record_in_processes;
+
+  // Which products to record this event on.
+  mozilla::Telemetry::Common::SupportedProduct products;
+
+  // Convenience functions for accessing event strings.
+  const nsDependentCString expiration_version() const;
+  const nsDependentCString category() const;
+  const nsDependentCString extra_key(uint32_t index) const;
+};
+
+struct EventInfo {
+  // The corresponding CommonEventInfo.
+  const CommonEventInfo& common_info;
+
+  // Indices for the method & object strings.
+  uint32_t method_offset;
+  uint32_t object_offset;
+
+  const nsDependentCString method() const;
+  const nsDependentCString object() const;
+};
+
+}  // namespace
+
+#endif  // TelemetryEventInfo_h__