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+/* 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/. */
+
+// The Gecko Profiler is an always-on profiler that takes fast and low overhead
+// samples of the program execution using only userspace functionality for
+// portability. The goal of this module is to provide performance data in a
+// generic cross-platform way without requiring custom tools or kernel support.
+//
+// Samples are collected to form a timeline with optional timeline event
+// (markers) used for filtering. The samples include both native stacks and
+// platform-independent "label stack" frames.
+
+#ifndef ProfileAdditionalInformation_h
+#define ProfileAdditionalInformation_h
+
+#ifdef MOZ_GECKO_PROFILER
+# include "shared-libraries.h"
+#endif
+#include "js/Value.h"
+#include "nsString.h"
+
+namespace IPC {
+class MessageReader;
+class MessageWriter;
+template <typename T>
+struct ParamTraits;
+} // namespace IPC
+
+namespace mozilla {
+// This structure contains additional information gathered while generating the
+// profile json and iterating the buffer.
+struct ProfileGenerationAdditionalInformation {
+#ifdef MOZ_GECKO_PROFILER
+ ProfileGenerationAdditionalInformation() = default;
+ explicit ProfileGenerationAdditionalInformation(
+ const SharedLibraryInfo&& aSharedLibraries)
+ : mSharedLibraries(aSharedLibraries) {}
+
+ size_t SizeOf() const { return mSharedLibraries.SizeOf(); }
+
+ void Append(ProfileGenerationAdditionalInformation&& aOther) {
+ mSharedLibraries.AddAllSharedLibraries(aOther.mSharedLibraries);
+ }
+
+ void FinishGathering() { mSharedLibraries.DeduplicateEntries(); }
+
+ void ToJSValue(JSContext* aCx, JS::MutableHandle<JS::Value> aRetVal) const;
+
+ SharedLibraryInfo mSharedLibraries;
+#endif // MOZ_GECKO_PROFILER
+};
+
+struct ProfileAndAdditionalInformation {
+ ProfileAndAdditionalInformation() = default;
+ explicit ProfileAndAdditionalInformation(const nsCString&& aProfile)
+ : mProfile(aProfile) {}
+
+ ProfileAndAdditionalInformation(
+ const nsCString&& aProfile,
+ const ProfileGenerationAdditionalInformation&& aAdditionalInformation)
+ : mProfile(aProfile),
+ mAdditionalInformation(Some(aAdditionalInformation)) {}
+
+ size_t SizeOf() const {
+ size_t size = mProfile.Length();
+#ifdef MOZ_GECKO_PROFILER
+ if (mAdditionalInformation.isSome()) {
+ size += mAdditionalInformation->SizeOf();
+ }
+#endif
+ return size;
+ }
+
+ nsCString mProfile;
+ Maybe<ProfileGenerationAdditionalInformation> mAdditionalInformation;
+};
+} // namespace mozilla
+
+namespace IPC {
+template <>
+struct ParamTraits<mozilla::ProfileGenerationAdditionalInformation> {
+ typedef mozilla::ProfileGenerationAdditionalInformation paramType;
+
+ static void Write(MessageWriter* aWriter, const paramType& aParam);
+ static bool Read(MessageReader* aReader, paramType* aResult);
+};
+} // namespace IPC
+
+#endif // ProfileAdditionalInformation_h