start implementing reserved message creator

src/fsfw/cfdp/handler/ReservedMessageParser.cpp

@@ -14,7 +14,7 @@ cfdp::ReservedMessageParser::ReservedMessageParser(StorageManagerIF& ipcStore,
     : msgQueue(msgQueue), ipcStore(ipcStore), userDestination(userDestination) {}
 
 ReturnValue_t cfdp::ReservedMessageParser::parse(const uint8_t* msgsToUserPtr,
-                                                                    size_t sizeOfMessages) {
+                                                 size_t sizeOfMessages) {
   ReturnValue_t result;
   size_t currentIdx = 0;
   const uint8_t* currentPtr = msgsToUserPtr;

src/fsfw/cfdp/tlv/CMakeLists.txt

@@ -8,4 +8,5 @@ target_sources(
           StringLv.cpp
           FlowLabelTlv.cpp
           MessageToUserTlv.cpp
-          FaultHandlerOverrideTlv.cpp)
+          FaultHandlerOverrideTlv.cpp
+          ReservedMessageCreator.cpp)

src/fsfw/cfdp/tlv/ReservedMessageCreator.cpp

@@ -0,0 +1,23 @@
+#include "ReservedMessageCreator.h"
+
+cfdp::ReservedMessageCreator::ReservedMessageCreator(uint8_t messageType, uint8_t *msgData,
+                                                     size_t msgLen)
+    : messageType(messageType), msgData(msgData), msgSize(msgLen) {}
+ReturnValue_t cfdp::ReservedMessageCreator::serialize(
+    uint8_t **buffer, size_t *size, size_t maxSize,
+    SerializeIF::Endianness streamEndianness) const {
+  if (*size + getSerializedSize() > maxSize) {
+    return SerializeIF::BUFFER_TOO_SHORT;
+  }
+  return returnvalue::OK;
+}
+
+size_t cfdp::ReservedMessageCreator::getSerializedSize() const {
+  // 3 bytes type and length and value, 4 bytes CFDP, 1 byte reserved message type, message data.
+  return 3 + 5 + msgSize;
+}
+
+ReturnValue_t cfdp::ReservedMessageCreator::deSerialize(const uint8_t **buffer, size_t *size,
+                                                        SerializeIF::Endianness streamEndianness) {
+  return returnvalue::FAILED;
+}

src/fsfw/cfdp/tlv/ReservedMessageCreator.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "Tlv.h"
+
+namespace cfdp {
+
+class ReservedMessageCreator : public SerializeIF {
+ public:
+  ReservedMessageCreator(uint8_t messageType, uint8_t *msgData, size_t msgLen);
+  [[nodiscard]] ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
+                                        Endianness streamEndianness) const override;
+  [[nodiscard]] size_t getSerializedSize() const override;
+  ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
+                            Endianness streamEndianness) override;
+
+ private:
+  uint8_t messageType;
+  uint8_t *msgData;
+  size_t msgSize;
+};
+
+}  // namespace cfdp