Gathering serialization and deserialization header in AltitudeHeader.

1 files changed, 50 insertions, 1 deletions

diff --git a/indexer/feature_altitude.hpp b/indexer/feature_altitude.hpp
index 64ec8161cf..b11c922ef5 100644
--- a/indexer/feature_altitude.hpp
+++ b/indexer/feature_altitude.hpp
@@ -1,7 +1,8 @@
 #pragma once
-
 #include "coding/varint.hpp"
 
+#include "base/logging.hpp"
+
 #include "std/limits.hpp"
 #include "std/vector.hpp"
 
@@ -9,8 +10,56 @@ namespace feature
 {
 using TAltitude = int16_t;
 using TAltitudes = vector<feature::TAltitude>;
+using TAltitudeSectionVersion = uint16_t;
+using TAltitudeSectionOffset = uint32_t;
+
 TAltitude constexpr kInvalidAltitude = numeric_limits<TAltitude>::min();
 
+struct AltitudeHeader
+{
+  AltitudeHeader()
+  {
+    Reset();
+  }
+
+  AltitudeHeader(TAltitudeSectionVersion v, TAltitude min, TAltitudeSectionOffset offset)
+    : version(v), minAltitude(min), altitudeInfoOffset(offset)
+  {
+  }
+
+  template <class TSink>
+  void Serialize(TSink & sink) const
+  {
+    sink.Write(&version, sizeof(version));
+    sink.Write(&minAltitude, sizeof(minAltitude));
+    sink.Write(&altitudeInfoOffset, sizeof(altitudeInfoOffset));
+  }
+
+  template <class TSource>
+  void Deserialize(TSource & src)
+  {
+    src.Read(&version, sizeof(version));
+    src.Read(&minAltitude, sizeof(minAltitude));
+    src.Read(&altitudeInfoOffset, sizeof(altitudeInfoOffset));
+  }
+
+  static size_t GetHeaderSize()
+  {
+    return sizeof(version) + sizeof(minAltitude) + sizeof(altitudeInfoOffset);
+  }
+
+  void Reset()
+  {
+    version = 1;
+    minAltitude = kInvalidAltitude;
+    altitudeInfoOffset = 0;
+  }
+
+  TAltitudeSectionVersion version;
+  TAltitude minAltitude;
+  TAltitudeSectionOffset altitudeInfoOffset;
+};
+
 class Altitude
 {
 public: