1 files changed, 84 insertions, 0 deletions
diff --git a/toolkit/components/telemetry/TelemetryComms.h b/toolkit/components/telemetry/TelemetryComms.h
new file mode 100644
index 000000000..0f2d888e3
--- /dev/null
+++ b/toolkit/components/telemetry/TelemetryComms.h
@@ -0,0 +1,84 @@
+/* -*-  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
+ */
+
+#ifndef Telemetry_Comms_h__
+#define Telemetry_Comms_h__
+
+#include "ipc/IPCMessageUtils.h"
+
+namespace mozilla {
+namespace Telemetry {
+
+enum ID : uint32_t;
+
+struct Accumulation
+{
+  mozilla::Telemetry::ID mId;
+  uint32_t mSample;
+};
+
+struct KeyedAccumulation
+{
+  mozilla::Telemetry::ID mId;
+  uint32_t mSample;
+  nsCString mKey;
+};
+
+} // namespace Telemetry
+} // namespace mozilla
+
+namespace IPC {
+
+template<>
+struct
+ParamTraits<mozilla::Telemetry::Accumulation>
+{
+  typedef mozilla::Telemetry::Accumulation paramType;
+
+  static void Write(Message* aMsg, const paramType& aParam)
+  {
+    aMsg->WriteUInt32(aParam.mId);
+    WriteParam(aMsg, aParam.mSample);
+  }
+
+  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
+  {
+    if (!aMsg->ReadUInt32(aIter, reinterpret_cast<uint32_t*>(&(aResult->mId))) ||
+        !ReadParam(aMsg, aIter, &(aResult->mSample))) {
+      return false;
+    }
+
+    return true;
+  }
+};
+
+template<>
+struct
+ParamTraits<mozilla::Telemetry::KeyedAccumulation>
+{
+  typedef mozilla::Telemetry::KeyedAccumulation paramType;
+
+  static void Write(Message* aMsg, const paramType& aParam)
+  {
+    aMsg->WriteUInt32(aParam.mId);
+    WriteParam(aMsg, aParam.mSample);
+    WriteParam(aMsg, aParam.mKey);
+  }
+
+  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
+  {
+    if (!aMsg->ReadUInt32(aIter, reinterpret_cast<uint32_t*>(&(aResult->mId))) ||
+        !ReadParam(aMsg, aIter, &(aResult->mSample)) ||
+        !ReadParam(aMsg, aIter, &(aResult->mKey))) {
+      return false;
+    }
+
+    return true;
+  }
+};
+
+} // namespace IPC
+
+#endif // Telemetry_Comms_h__