added gpr speed tracking

data_acq_and_processing/common_cpp/ipc/include/shared_types.hpp

@@ -43,6 +43,8 @@ struct SweepTraceBlock {
 struct RawSweepCollection {
     std::uint64_t collection_id = 0;
     std::uint64_t monotonic_ns = 0;
+    std::uint64_t capture_start_ns = 0;
+    std::uint64_t capture_end_ns = 0;
     std::vector<SweepTraceBlock> traces{};
 };
 

data_acq_and_processing/common_cpp/ipc/src/shared_types.cpp

@@ -89,6 +89,10 @@ class BinaryReader {
         return offset_ == bytes_.size();
     }
 
+    [[nodiscard]] auto remaining_bytes() const -> std::size_t {
+        return bytes_.size() - offset_;
+    }
+
   private:
     void ensure_available(std::size_t size) const {
         if (offset_ + size > bytes_.size()) {
@@ -163,6 +167,9 @@ void write_trace_collection(BinaryWriter& writer, std::uint32_t magic, const Raw
     for (const auto& trace : collection.traces) {
         write_trace_block(writer, trace);
     }
+
+    writer.write(collection.capture_start_ns);
+    writer.write(collection.capture_end_ns);
 }
 
 [[nodiscard]] auto read_trace_collection(BinaryReader& reader, std::uint32_t expected_magic) -> RawSweepCollection {
@@ -181,6 +188,16 @@ void write_trace_collection(BinaryWriter& writer, std::uint32_t magic, const Raw
         collection.traces.push_back(read_trace_block(reader));
     }
 
+    if (reader.remaining_bytes() == 0U) {
+        return collection;
+    }
+    if (reader.remaining_bytes() != (sizeof(std::uint64_t) * 2U)) {
+        throw std::runtime_error("Unexpected trailing bytes in trace collection");
+    }
+
+    collection.capture_start_ns = reader.read<std::uint64_t>();
+    collection.capture_end_ns = reader.read<std::uint64_t>();
+
     return collection;
 }