build(LibCarla, BuildTools): upgrade Fast-DDS to 2.14.6 LTS

CHANGELOG.md

@@ -1,4 +1,5 @@
 ## Latest Changes
+ * Upgraded the bundled eProsima Fast-DDS used by the native ROS 2 integration from v2.11.2 to the v2.14.6 LTS line, moving serialization onto Fast-CDR 2.x while keeping the classic XCDRv1 wire format so published topics stay compatible with every ROS 2 distribution.
  * Added Zenoh as a third ROS 2 middleware backend, selectable at runtime via `--rmw=zenoh` alongside `--rmw=fastdds` and `--rmw=cyclonedds`.
  * Renamed the ROS2 abstraction layer from dds/DDS* to generic middleware/Middleware* naming to support future non-DDS backends like Zenoh. FastDDS and CycloneDDS vendor classes are unchanged.
  * Added NumPy 2 compatibility to the PythonAPI: replaced removed aliases (`np.bool`, `np.matrix`) in example scripts and upgraded Boost to 1.90.0, which ships the upstream NumPy 2 C ABI fix (boostorg/python#432) so the C extension builds against both NumPy 1.x (>=1.18.4) and NumPy 2.x

LibCarla/source/carla/ros2/middleware/fastdds/GenericCdrPubSubType.h

@@ -67,7 +67,7 @@ class GenericCdrPubSubType : public eprosima::fastdds::dds::TopicDataType {
     eprosima::fastcdr::Cdr ser(
         fb,
         eprosima::fastcdr::Cdr::LITTLE_ENDIANNESS,
-        eprosima::fastcdr::Cdr::DDS_CDR);
+        eprosima::fastcdr::CdrVersion::XCDRv1);
     payload->encapsulation = CDR_LE;
 
     try {
@@ -77,7 +77,7 @@ class GenericCdrPubSubType : public eprosima::fastdds::dds::TopicDataType {
       return false;
     }
 
-    const uint32_t len = static_cast<uint32_t>(ser.getSerializedDataLength());
+    const uint32_t len = static_cast<uint32_t>(ser.get_serialized_data_length());
     if (len > payload->max_size) {
       return false;
     }
@@ -86,6 +86,19 @@ class GenericCdrPubSubType : public eprosima::fastdds::dds::TopicDataType {
     return true;
   }
 
+  /// FastDDS 2.13+ data-representation-aware serialize overload. CARLA always
+  /// emits classic CDR (XCDRv1, little-endian) regardless of the requested
+  /// representation, so this simply delegates to the 2-argument override. It
+  /// guarantees the writer path reaches our CDR serializer whichever overload
+  /// FastDDS calls internally.
+  bool serialize(
+      void* data,
+      SerializedPayload_t* payload,
+      eprosima::fastdds::dds::DataRepresentationId_t /*data_representation*/)
+      override {
+    return serialize(data, payload);
+  }
+
   /// Deserialize a FastDDS payload buffer into a MsgType instance.
   /// Called by FastDDS DataReader after receiving data from the wire.
   bool deserialize(
@@ -103,7 +116,7 @@ class GenericCdrPubSubType : public eprosima::fastdds::dds::TopicDataType {
     eprosima::fastcdr::Cdr deser(
         fastbuffer,
         eprosima::fastcdr::Cdr::LITTLE_ENDIANNESS,
-        eprosima::fastcdr::Cdr::DDS_CDR);
+        eprosima::fastcdr::CdrVersion::XCDRv1);
 
     try {
       deser.read_encapsulation();
@@ -128,6 +141,16 @@ class GenericCdrPubSubType : public eprosima::fastdds::dds::TopicDataType {
     };
   }
 
+  /// FastDDS 2.13+ data-representation-aware size-provider overload. CARLA
+  /// serializes the same classic-CDR bytes regardless of the requested
+  /// representation, so this delegates to the 1-argument override.
+  std::function<uint32_t()> getSerializedSizeProvider(
+      void* data,
+      eprosima::fastdds::dds::DataRepresentationId_t /*data_representation*/)
+      override {
+    return getSerializedSizeProvider(data);
+  }
+
   /// Allocate a new default-initialized MsgType on the heap.
   void* createData() override {
     return static_cast<void*>(new MsgType());

LibCarla/source/carla/ros2/types/CdrSerialization.h

@@ -655,15 +655,15 @@ std::vector<uint8_t> serialize_to_cdr(const T& msg) {
   eprosima::fastcdr::Cdr cdr{
       fb,
       eprosima::fastcdr::Cdr::LITTLE_ENDIANNESS,
-      eprosima::fastcdr::Cdr::DDS_CDR};
+      eprosima::fastcdr::CdrVersion::XCDRv1};
   try {
     cdr.serialize_encapsulation();
     serialize_cdr(cdr, msg);
   } catch (const eprosima::fastcdr::exception::Exception&) {
     return std::vector<uint8_t>{};
   }
   const char* buf{fb.getBuffer()};
-  const size_t len{cdr.getSerializedDataLength()};
+  const size_t len{cdr.get_serialized_data_length()};
   return std::vector<uint8_t>{
       reinterpret_cast<const uint8_t*>(buf),
       reinterpret_cast<const uint8_t*>(buf) + len};
@@ -680,10 +680,10 @@ uint32_t cdr_serialized_size(const T& msg) {
   eprosima::fastcdr::Cdr cdr{
       fb,
       eprosima::fastcdr::Cdr::LITTLE_ENDIANNESS,
-      eprosima::fastcdr::Cdr::DDS_CDR};
+      eprosima::fastcdr::CdrVersion::XCDRv1};
   cdr.serialize_encapsulation();
   serialize_cdr(cdr, msg);
-  return static_cast<uint32_t>(cdr.getSerializedDataLength());
+  return static_cast<uint32_t>(cdr.get_serialized_data_length());
 }
 
 /// Deserialize a msg::X from a CDR byte buffer that was produced by
@@ -701,7 +701,7 @@ bool deserialize_from_cdr(
   eprosima::fastcdr::Cdr cdr{
       fb,
       eprosima::fastcdr::Cdr::LITTLE_ENDIANNESS,
-      eprosima::fastcdr::Cdr::DDS_CDR};
+      eprosima::fastcdr::CdrVersion::XCDRv1};
   try {
     cdr.read_encapsulation();
     deserialize_cdr(cdr, msg);

LibCarla/source/test/server/test_ros2_middleware.cpp

@@ -505,6 +505,36 @@ TEST(cdr_serialization, time_round_trip) {
   EXPECT_EQ(recovered.nanosec, 123456789u);
 }
 
+// Byte-exact wire-format guard. The symmetric round-trip tests above cannot
+// detect an encoding drift (e.g. Fast-CDR defaulting to XCDRv2, which inserts
+// DHEADERs) because deserialize_from_cdr would consume whatever encoding
+// serialize_to_cdr emitted. This test pins the literal bytes so a regression
+// to XCDRv2 or big-endian is caught deterministically. These exact bytes are
+// what every backend puts on the wire: FastDDS via write_serialized_payload,
+// CycloneDDS via dds_writecdr (raw passthrough of serialize_to_cdr), and Zenoh.
+// Layout (classic CDR, encoding version 1, little-endian):
+//   00 01 00 00  encapsulation header (PLAIN_CDR little-endian + 2 option bytes)
+//   2A 00 00 00  sec    = int32  42        (0x0000002A, LE)
+//   15 CD 5B 07  nanosec= uint32 123456789 (0x075BCD15, LE)
+TEST(cdr_serialization, time_golden_xcdrv1_bytes) {
+  carla::ros2::msg::Time original{};
+  original.sec = 42;
+  original.nanosec = 123456789u;
+
+  const auto buf = carla::ros2::serialize_to_cdr(original);
+
+  const std::vector<uint8_t> expected{
+      0x00u, 0x01u, 0x00u, 0x00u,
+      0x2Au, 0x00u, 0x00u, 0x00u,
+      0x15u, 0xCDu, 0x5Bu, 0x07u};
+  EXPECT_EQ(buf, expected);
+  // Discriminator byte: classic CDR_LE is 0x01; any XCDRv2 representation
+  // (PLAIN_CDR2 / DELIMIT_CDR2 / PL_CDR2) would change byte 1.
+  ASSERT_GE(buf.size(), 2u);
+  EXPECT_EQ(buf[0], 0x00u);
+  EXPECT_EQ(buf[1], 0x01u);
+}
+
 TEST(cdr_serialization, header_round_trip) {
   carla::ros2::msg::Header original{};
   original.stamp.sec = 10;

Util/BuildTools/Setup.sh

@@ -972,7 +972,7 @@ if ${USE_ROS2} ; then
     FAST_DDS_LIB_BASENAME=fast-dds-lib
     FAST_DDS_LIB_SOURCE_DIR=${PWD}/${FAST_DDS_LIB_BASENAME}-source
     FAST_DDS_LIB_REPO="https://github.com/eProsima/Fast-DDS.git"
-    FAST_DDS_LIB_BRANCH=v2.11.2
+    FAST_DDS_LIB_BRANCH=v2.14.6
 
     git clone --recurse-submodules --depth 1 --branch ${FAST_DDS_LIB_BRANCH} ${FAST_DDS_LIB_REPO} ${FAST_DDS_LIB_SOURCE_DIR}