1 files changed, 91 insertions, 0 deletions
diff --git a/profiling/server/include/timelineDecoder/ITimelineDecoder.hpp b/profiling/server/include/timelineDecoder/ITimelineDecoder.hpp
new file mode 100644
index 0000000000..18b8cc7006
--- /dev/null
+++ b/profiling/server/include/timelineDecoder/ITimelineDecoder.hpp
@@ -0,0 +1,91 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace arm
+{
+
+namespace pipe
+{
+
+class ITimelineDecoder
+{
+
+public:
+
+    enum class TimelineStatus
+    {
+        TimelineStatus_Success,
+        TimelineStatus_Fail
+    };
+
+    enum class RelationshipType
+    {
+        RetentionLink, /// Head retains(parents) Tail
+        ExecutionLink, /// Head execution start depends on Tail execution completion
+        DataLink,      /// Head uses data of Tail
+        LabelLink      /// Head uses label Tail (Tail MUST be a guid of a label).
+    };
+
+    static char const* GetRelationshipAsCString(RelationshipType rType)
+    {
+        switch (rType)
+        {
+            case RelationshipType::RetentionLink: return "RetentionLink";
+            case RelationshipType::ExecutionLink: return "ExecutionLink";
+            case RelationshipType::DataLink: return "DataLink";
+            case RelationshipType::LabelLink: return "LabelLink";
+            default: return "Unknown";
+        }
+    }
+
+    struct Entity
+    {
+        uint64_t m_Guid;
+    };
+
+    struct EventClass
+    {
+        uint64_t m_Guid;
+        uint64_t m_NameGuid;
+    };
+
+    struct Event
+    {
+        uint64_t m_Guid;
+        uint64_t m_TimeStamp;
+        uint64_t m_ThreadId;
+    };
+
+    struct Label
+    {
+        uint64_t m_Guid;
+        std::string m_Name;
+    };
+
+    struct Relationship
+    {
+        RelationshipType m_RelationshipType;
+        uint64_t m_Guid;
+        uint64_t m_HeadGuid;
+        uint64_t m_TailGuid;
+        uint64_t m_AttributeGuid;
+    };
+
+    virtual ~ITimelineDecoder() = default;
+
+    virtual TimelineStatus CreateEntity(const Entity&) = 0;
+    virtual TimelineStatus CreateEventClass(const EventClass&) = 0;
+    virtual TimelineStatus CreateEvent(const Event&) = 0;
+    virtual TimelineStatus CreateLabel(const Label&) = 0;
+    virtual TimelineStatus CreateRelationship(const Relationship&) = 0;
+};
+
+} // namespace pipe
+} // namespace arm