CMakeLists.txt

@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 3.13)
+set(LIB_FSFW_NAME fsfw)
 project(${LIB_FSFW_NAME})
 
 set(FSFW_VERSION_IF_GIT_FAILS 4)
@@ -16,11 +17,12 @@ set(FSFW_ETL_LIB_MAJOR_VERSION 20 CACHE STRING
 set(FSFW_ETL_LIB_VERSION ${FSFW_ETL_LIB_MAJOR_VERSION}.27.3 CACHE STRING
     "ETL library exact version requirement"
 )
+set(FSFW_ETL_LINK_TARGET etl::etl)
 
 set(FSFW_CATCH2_LIB_MAJOR_VERSION 3 CACHE STRING
     "Catch2 library major version requirement"
 )
-set(FSFW_CATCH2_LIB_VERSION v${FSFW_CATCH2_LIB_MAJOR_VERSION}.0.0-preview4 CACHE STRING
+set(FSFW_CATCH2_LIB_VERSION v${FSFW_CATCH2_LIB_MAJOR_VERSION}.0.0-preview5 CACHE STRING
     "Catch2 library exact version requirement"
 )
 
@@ -57,7 +59,7 @@ option(FSFW_ADD_TMSTORAGE "Compile with tm storage components" OFF)
 # Contrib sources
 option(FSFW_ADD_SGP4_PROPAGATOR "Add SGP4 propagator code" OFF)
 
-set(LIB_FSFW_NAME fsfw)
+
 set(FSFW_TEST_TGT fsfw-tests)
 set(FSFW_DUMMY_TGT fsfw-dummy)
 
@@ -110,9 +112,7 @@ if(FSFW_BUILD_UNITTESTS)
             GIT_TAG        ${FSFW_CATCH2_LIB_VERSION}
         )
 
-        FetchContent_MakeAvailable(Catch2)
+        list(APPEND FSFW_FETCH_CONTENT_TARGETS Catch2)
-        #fixes regression -preview4, to be confirmed in later releases
-        set_target_properties(Catch2 PROPERTIES DEBUG_POSTFIX "")
     endif()
 
     set(FSFW_CONFIG_PATH tests/src/fsfw_tests/unit/testcfg)
@@ -135,23 +135,36 @@ endif()
 message(STATUS "Finding and/or providing etl library with version ${FSFW_ETL_LIB_MAJOR_VERSION}")
 
 # Check whether the user has already installed ETL first
-# find_package(${FSFW_ETL_LIB_NAME} ${FSFW_ETL_LIB_MAJOR_VERSION} CONFIG QUIET)
+find_package(${FSFW_ETL_LIB_NAME} ${FSFW_ETL_LIB_MAJOR_VERSION} CONFIG QUIET)
 # Not installed, so use FetchContent to download and provide etl
-# if(NOT ${FSFW_ETL_LIB_NAME}_FOUND)
+if(NOT ${FSFW_ETL_LIB_NAME}_FOUND)
-message(STATUS
+    message(STATUS
-    "No etl installation was found with find_package. Installing and providing "
+        "No ETL installation was found with find_package. Installing and providing "
-    "etl with FetchContent"
+        "etl with FindPackage"
-)
+    )
-include(FetchContent)
+    include(FetchContent)
+    FetchContent_Declare(
+        ${FSFW_ETL_LIB_NAME}
+        GIT_REPOSITORY https://github.com/ETLCPP/etl
+        GIT_TAG        ${FSFW_ETL_LIB_VERSION}
+    )
+    list(APPEND FSFW_FETCH_CONTENT_TARGETS ${FSFW_ETL_LIB_NAME})
+endif()
 
-FetchContent_Declare(
+# The documentation for FetchContent recommends declaring all the dependencies
-    ${FSFW_ETL_LIB_NAME}
+# before making them available. We make all declared dependency available here
-    GIT_REPOSITORY https://github.com/ETLCPP/etl
+# after their declaration
-    GIT_TAG        ${FSFW_ETL_LIB_VERSION}
+if(FSFW_FETCH_CONTENT_TARGETS)
-)
+    FetchContent_MakeAvailable(${FSFW_FETCH_CONTENT_TARGETS})
-
+    if(TARGET ${FSFW_ETL_LIB_NAME})
-FetchContent_MakeAvailable(${FSFW_ETL_LIB_NAME})
+        add_library(${FSFW_ETL_LINK_TARGET} ALIAS ${FSFW_ETL_LIB_NAME})
-# endif()
+    endif()
+    if(TARGET Catch2)
+        # Fixes regression -preview4, to be confirmed in later releases
+        # Related GitHub issue: https://github.com/catchorg/Catch2/issues/2417
+        set_target_properties(Catch2 PROPERTIES DEBUG_POSTFIX "")
+    endif()
+endif()
 
 set(FSFW_CORE_INC_PATH "inc")
 
@@ -414,7 +427,7 @@ target_compile_options(${LIB_FSFW_NAME} PRIVATE
 )
 
 target_link_libraries(${LIB_FSFW_NAME} PRIVATE
-    etl
+    ${FSFW_ETL_LINK_TARGET}
     ${FSFW_ADDITIONAL_LINK_LIBS}
 )
 

automation/Dockerfile

@@ -6,3 +6,9 @@ RUN apt-get --yes upgrade
 #tzdata is a dependency, won't install otherwise
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get --yes install gcc g++ cmake make lcov git valgrind nano iputils-ping
+
+RUN git clone https://github.com/catchorg/Catch2.git && \
+	cd Catch2 && \
+	git checkout v3.0.0-preview5 && \
+	cmake -Bbuild -H. -DBUILD_TESTING=OFF && \
+	cmake --build build/ --target install

automation/Jenkinsfile

@@ -3,7 +3,7 @@ pipeline {
         BUILDDIR = 'build-tests'
     }
     agent {
-        docker { image 'fsfw-ci:d1'}
+        docker { image 'fsfw-ci:d2'}
     }
     stages {
         stage('Clean') {

hal/src/fsfw_hal/common/gpio/GpioIF.h

@@ -46,9 +46,9 @@ class GpioIF : public HasReturnvaluesIF {
    *          an ouput or input gpio.
    *
    * @param gpioId    A unique number which specifies the GPIO to read.
-   * @param gpioState State of GPIO will be written to this pointer.
+   * @param gpioState State of GPIO will be written to this reference
    */
-  virtual ReturnValue_t readGpio(gpioId_t gpioId, int* gpioState) = 0;
+  virtual ReturnValue_t readGpio(gpioId_t gpioId, gpio::Levels& gpioState) = 0;
 };
 
 #endif /* COMMON_GPIO_GPIOIF_H_ */

hal/src/fsfw_hal/common/gpio/gpioDefinitions.h

@@ -9,7 +9,7 @@ using gpioId_t = uint16_t;
 
 namespace gpio {
 
-enum class Levels : int { LOW = 0, HIGH = 1, NONE = 99 };
+enum class Levels : int { LOW = 0, HIGH = 1, FAILED = -1, NONE = 99 };
 
 enum class Direction : int { IN = 0, OUT = 1 };
 

hal/src/fsfw_hal/linux/CMakeLists.txt

@@ -12,9 +12,14 @@ if(FSFW_HAL_LINUX_ADD_PERIPHERAL_DRIVERS)
 if(FSFW_HAL_LINUX_ADD_LIBGPIOD)
 	add_subdirectory(gpio)
 endif()
-	add_subdirectory(spi)
-	add_subdirectory(i2c)
 	add_subdirectory(uart)
+	# Adding those does not really make sense on Apple systems which
+	# are generally host systems. It won't even compile as the headers
+	# are missing
+	if(NOT APPLE)
+		add_subdirectory(i2c)
+		add_subdirectory(spi)
+	endif()
 endif()
 
 add_subdirectory(uio)

hal/src/fsfw_hal/linux/gpio/LinuxLibgpioIF.cpp

@@ -280,7 +280,7 @@ ReturnValue_t LinuxLibgpioIF::driveGpio(gpioId_t gpioId, GpiodRegularBase& regul
   return RETURN_OK;
 }
 
-ReturnValue_t LinuxLibgpioIF::readGpio(gpioId_t gpioId, int* gpioState) {
+ReturnValue_t LinuxLibgpioIF::readGpio(gpioId_t gpioId, gpio::Levels& gpioState) {
   gpioMapIter = gpioMap.find(gpioId);
   if (gpioMapIter == gpioMap.end()) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
@@ -299,7 +299,10 @@ ReturnValue_t LinuxLibgpioIF::readGpio(gpioId_t gpioId, int* gpioState) {
     if (regularGpio == nullptr) {
       return GPIO_TYPE_FAILURE;
     }
-    *gpioState = gpiod_line_get_value(regularGpio->lineHandle);
+    gpioState = static_cast<gpio::Levels>(gpiod_line_get_value(regularGpio->lineHandle));
+    if (gpioState == gpio::Levels::FAILED) {
+      return GPIO_GET_VALUE_FAILED;
+    }
   } else {
     auto gpioCallback = dynamic_cast<GpioCallback*>(gpioMapIter->second);
     if (gpioCallback->callback == nullptr) {

hal/src/fsfw_hal/linux/gpio/LinuxLibgpioIF.h

@@ -31,14 +31,16 @@ class LinuxLibgpioIF : public GpioIF, public SystemObject {
       HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 5);
   static constexpr ReturnValue_t GPIO_INIT_FAILED =
       HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 6);
-
+  // Will be returned if getting the line value failed. Error type will be set to errno in this case
+  static constexpr ReturnValue_t GPIO_GET_VALUE_FAILED =
+      HasReturnvaluesIF::makeReturnCode(gpioRetvalId, 7);
   LinuxLibgpioIF(object_id_t objectId);
   virtual ~LinuxLibgpioIF();
 
   ReturnValue_t addGpios(GpioCookie* gpioCookie) override;
   ReturnValue_t pullHigh(gpioId_t gpioId) override;
   ReturnValue_t pullLow(gpioId_t gpioId) override;
-  ReturnValue_t readGpio(gpioId_t gpioId, int* gpioState) override;
+  ReturnValue_t readGpio(gpioId_t gpioId, gpio::Levels& gpioState) override;
 
  private:
   static const size_t MAX_CHIPNAME_LENGTH = 11;

hal/src/fsfw_hal/linux/i2c/I2cComIF.cpp

@@ -170,18 +170,20 @@ ReturnValue_t I2cComIF::requestReceiveMessage(CookieIF* cookie, size_t requestLe
 
   int readLen = read(fd, replyBuffer, requestLen);
   if (readLen != static_cast<int>(requestLen)) {
-#if FSFW_VERBOSE_LEVEL >= 1 and FSFW_CPP_OSTREAM_ENABLED == 1
+#if FSFW_VERBOSE_LEVEL >= 1
-    sif::error << "I2cComIF::requestReceiveMessage: Reading from I2C "
+#if FSFW_CPP_OSTREAM_ENABLED == 1
-               << "device failed with error code " << errno << ". Description"
+    if (readLen < 0) {
-               << " of error: " << strerror(errno) << std::endl;
+      sif::warning << "I2cComIF::requestReceiveMessage: Reading from I2C "
-    sif::error << "I2cComIF::requestReceiveMessage: Read only " << readLen << " from " << requestLen
+                   << "device failed with error code " << errno << " | " << strerror(errno)
-               << " bytes" << std::endl;
+                   << std::endl;
+    } else {
+      sif::warning << "I2cComIF::requestReceiveMessage: Read only " << readLen << " from "
+                   << requestLen << " bytes" << std::endl;
+    }
+#else
+#endif
 #endif
     i2cDeviceMapIter->second.replyLen = 0;
-#if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::debug << "I2cComIF::requestReceiveMessage: Read " << readLen << " of " << requestLen
-               << " bytes" << std::endl;
-#endif
     return HasReturnvaluesIF::RETURN_FAILED;
   }
 

hal/src/fsfw_hal/linux/spi/SpiCookie.cpp

@@ -1,4 +1,4 @@
-#include "fsfw_hal/linux/spi/SpiCookie.h"
+#include "SpiCookie.h"
 
 SpiCookie::SpiCookie(address_t spiAddress, gpioId_t chipSelect, std::string spiDev,
                      const size_t maxSize, spi::SpiModes spiMode, uint32_t spiSpeed)

hal/src/fsfw_hal/linux/uart/UartComIF.cpp

@@ -265,6 +265,7 @@ void UartComIF::configureBaudrate(struct termios* options, UartCookie* uartCooki
       cfsetispeed(options, B230400);
       cfsetospeed(options, B230400);
       break;
+#ifndef __APPLE__
     case UartBaudRate::RATE_460800:
       cfsetispeed(options, B460800);
       cfsetospeed(options, B460800);
@@ -313,6 +314,7 @@ void UartComIF::configureBaudrate(struct termios* options, UartCookie* uartCooki
       cfsetispeed(options, B4000000);
       cfsetospeed(options, B4000000);
       break;
+#endif  // ! __APPLE__
     default:
 #if FSFW_CPP_OSTREAM_ENABLED == 1
       sif::warning << "UartComIF::configureBaudrate: Baudrate not supported" << std::endl;

src/fsfw/cfdp/pdu/HeaderSerializer.h

@@ -44,7 +44,7 @@ class HeaderSerializer : public SerializeIF, public PduHeaderIF {
   cfdp::WidthInBytes getLenEntityIds() const override;
   cfdp::WidthInBytes getLenSeqNum() const override;
   cfdp::SegmentMetadataFlag getSegmentMetadataFlag() const override;
-  bool hasSegmentMetadataFlag() const;
+  bool hasSegmentMetadataFlag() const override;
   void setSegmentationControl(cfdp::SegmentationControl);
 
   void getSourceId(cfdp::EntityId& sourceId) const override;

src/fsfw/container/FixedArrayList.h

@@ -9,7 +9,7 @@
  */
 template <typename T, size_t MAX_SIZE, typename count_t = uint8_t>
 class FixedArrayList : public ArrayList<T, count_t> {
-#if !defined(_MSC_VER)
+#if !defined(_MSC_VER) && !defined(__clang__)
   static_assert(MAX_SIZE <= (std::pow(2, sizeof(count_t) * 8) - 1),
                 "count_t is not large enough to hold MAX_SIZE");
 #endif

src/fsfw/container/HybridIterator.h

@@ -10,7 +10,7 @@ class HybridIterator : public LinkedElement<T>::Iterator, public ArrayList<T, co
   HybridIterator() {}
 
   HybridIterator(typename LinkedElement<T>::Iterator *iter)
-      : LinkedElement<T>::Iterator(*iter), value(iter->value), linked(true) {
+      : LinkedElement<T>::Iterator(*iter), linked(true) {
     if (iter != nullptr) {
       value = iter->value;
     }

src/fsfw/controller/ControllerBase.h

@@ -55,7 +55,7 @@ class ControllerBase : public HasModesIF,
   virtual void performControlOperation() = 0;
 
   virtual ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
-                                         uint32_t *msToReachTheMode) = 0;
+                                         uint32_t *msToReachTheMode) override = 0;
 
   const object_id_t parentId;
 
@@ -80,9 +80,9 @@ class ControllerBase : public HasModesIF,
 
   /** Mode helpers */
   virtual void modeChanged(Mode_t mode, Submode_t submode);
-  virtual void startTransition(Mode_t mode, Submode_t submode);
+  virtual void startTransition(Mode_t mode, Submode_t submode) override;
-  virtual void getMode(Mode_t *mode, Submode_t *submode);
+  virtual void getMode(Mode_t *mode, Submode_t *submode) override;
-  virtual void setToExternalControl();
+  virtual void setToExternalControl() override;
   virtual void announceMode(bool recursive);
   /** HK helpers */
   virtual void changeHK(Mode_t mode, Submode_t submode, bool enable);

src/fsfw/datapool/PoolDataSetBase.h

@@ -109,7 +109,7 @@ class PoolDataSetBase : public PoolDataSetIF, public SerializeIF, public HasRetu
    */
   virtual ReturnValue_t unlockDataPool() override;
 
-  virtual uint16_t getFillCount() const;
+  virtual uint16_t getFillCount() const override;
 
   /* SerializeIF implementations */
   virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size, const size_t maxSize,

src/fsfw/datapoollocal/LocalPoolDataSetBase.cpp

@@ -94,13 +94,14 @@ ReturnValue_t LocalPoolDataSetBase::serializeWithValidityBuffer(
   ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
   const uint8_t validityMaskSize = std::ceil(static_cast<float>(fillCount) / 8.0);
   uint8_t *validityPtr = nullptr;
-#ifdef _MSC_VER
+#if defined(_MSC_VER) || defined(__clang__)
-  /* Use a std::vector here because MSVC will (rightly) not create a fixed size array
+  // Use a std::vector here because MSVC will (rightly) not create a fixed size array
-  with a non constant size specifier */
+  // with a non constant size specifier. The Apple compiler (LLVM) will not accept
-  std::vector<uint8_t> validityMask(validityMaskSize);
+  // the  initialization of a variable sized array
+  std::vector<uint8_t> validityMask(validityMaskSize, 0);
   validityPtr = validityMask.data();
 #else
-  uint8_t validityMask[validityMaskSize] = {0};
+  uint8_t validityMask[validityMaskSize] = {};
   validityPtr = validityMask;
 #endif
   uint8_t validBufferIndex = 0;

src/fsfw/datapoollocal/LocalPoolObjectBase.h

@@ -23,8 +23,8 @@ class LocalPoolObjectBase : public PoolVariableIF, public HasReturnvaluesIF, pub
   LocalPoolObjectBase(object_id_t poolOwner, lp_id_t poolId, DataSetIF* dataSet = nullptr,
                       pool_rwm_t setReadWriteMode = pool_rwm_t::VAR_READ_WRITE);
 
-  void setReadWriteMode(pool_rwm_t newReadWriteMode);
+  void setReadWriteMode(pool_rwm_t newReadWriteMode) override;
-  pool_rwm_t getReadWriteMode() const;
+  pool_rwm_t getReadWriteMode() const override;
 
   bool isValid() const override;
   void setValid(bool valid) override;

src/fsfw/devicehandlers/DeviceHandlerBase.cpp

@@ -243,17 +243,28 @@ ReturnValue_t DeviceHandlerBase::initialize() {
 }
 
 void DeviceHandlerBase::decrementDeviceReplyMap() {
+  bool timedOut = false;
   for (std::pair<const DeviceCommandId_t, DeviceReplyInfo>& replyPair : deviceReplyMap) {
-    if (replyPair.second.delayCycles != 0) {
+    if (replyPair.second.countdown != nullptr && replyPair.second.active) {
+      if (replyPair.second.countdown->hasTimedOut()) {
+        timedOut = true;
+      }
+    }
+    if (replyPair.second.delayCycles != 0 && replyPair.second.countdown == nullptr) {
       replyPair.second.delayCycles--;
       if (replyPair.second.delayCycles == 0) {
         if (replyPair.second.periodic) {
           replyPair.second.delayCycles = replyPair.second.maxDelayCycles;
         }
-        replyToReply(replyPair.first, replyPair.second, TIMEOUT);
+        timedOut = true;
-        missedReply(replyPair.first);
       }
     }
+    if (timedOut) {
+      replyToReply(replyPair.first, replyPair.second, TIMEOUT);
+      missedReply(replyPair.first);
+      timedOut = false;
+      replyPair.second.active = false;
+    }
   }
 }
 
@@ -416,20 +427,22 @@ ReturnValue_t DeviceHandlerBase::isModeCombinationValid(Mode_t mode, Submode_t s
 
 ReturnValue_t DeviceHandlerBase::insertInCommandAndReplyMap(
     DeviceCommandId_t deviceCommand, uint16_t maxDelayCycles, LocalPoolDataSetBase* replyDataSet,
-    size_t replyLen, bool periodic, bool hasDifferentReplyId, DeviceCommandId_t replyId) {
+    size_t replyLen, bool periodic, bool hasDifferentReplyId, DeviceCommandId_t replyId,
+    Countdown* countdown) {
   // No need to check, as we may try to insert multiple times.
   insertInCommandMap(deviceCommand, hasDifferentReplyId, replyId);
   if (hasDifferentReplyId) {
-    return insertInReplyMap(replyId, maxDelayCycles, replyDataSet, replyLen, periodic);
+    return insertInReplyMap(replyId, maxDelayCycles, replyDataSet, replyLen, periodic, countdown);
   } else {
-    return insertInReplyMap(deviceCommand, maxDelayCycles, replyDataSet, replyLen, periodic);
+    return insertInReplyMap(deviceCommand, maxDelayCycles, replyDataSet, replyLen, periodic,
+                            countdown);
   }
 }
 
 ReturnValue_t DeviceHandlerBase::insertInReplyMap(DeviceCommandId_t replyId,
                                                   uint16_t maxDelayCycles,
                                                   LocalPoolDataSetBase* dataSet, size_t replyLen,
-                                                  bool periodic) {
+                                                  bool periodic, Countdown* countdown) {
   DeviceReplyInfo info;
   info.maxDelayCycles = maxDelayCycles;
   info.periodic = periodic;
@@ -437,6 +450,10 @@ ReturnValue_t DeviceHandlerBase::insertInReplyMap(DeviceCommandId_t replyId,
   info.replyLen = replyLen;
   info.dataSet = dataSet;
   info.command = deviceCommandMap.end();
+  info.countdown = countdown;
+  if (info.periodic) {
+    info.active = true;
+  }
   auto resultPair = deviceReplyMap.emplace(replyId, info);
   if (resultPair.second) {
     return RETURN_OK;
@@ -472,7 +489,8 @@ size_t DeviceHandlerBase::getNextReplyLength(DeviceCommandId_t commandId) {
   }
   DeviceReplyIter iter = deviceReplyMap.find(replyId);
   if (iter != deviceReplyMap.end()) {
-    if (iter->second.delayCycles != 0) {
+    if ((iter->second.delayCycles != 0 && iter->second.countdown == nullptr) ||
+        (iter->second.active && iter->second.countdown != nullptr)) {
       return iter->second.replyLen;
     }
   }
@@ -816,17 +834,18 @@ void DeviceHandlerBase::handleReply(const uint8_t* receivedData, DeviceCommandId
 
   DeviceReplyInfo* info = &(iter->second);
 
-  if (info->delayCycles != 0) {
+  if ((info->delayCycles != 0 && info->countdown == nullptr) ||
+      (info->active && info->countdown != nullptr)) {
     result = interpretDeviceReply(foundId, receivedData);
 
     if (result == IGNORE_REPLY_DATA) {
       return;
     }
 
-    if (info->periodic) {
+    if (info->active && info->countdown != nullptr) {
-      info->delayCycles = info->maxDelayCycles;
+      disableTimeoutControlledReply(info);
-    } else {
+    } else if (info->delayCycles != 0) {
-      info->delayCycles = 0;
+      disableDelayCyclesControlledReply(info);
     }
 
     if (result != RETURN_OK) {
@@ -845,6 +864,24 @@ void DeviceHandlerBase::handleReply(const uint8_t* receivedData, DeviceCommandId
   }
 }
 
+void DeviceHandlerBase::disableTimeoutControlledReply(DeviceReplyInfo* info) {
+  if (info->periodic) {
+    info->countdown->resetTimer();
+  } else {
+    info->active = false;
+    info->countdown->timeOut();
+  }
+}
+
+void DeviceHandlerBase::disableDelayCyclesControlledReply(DeviceReplyInfo* info) {
+  if (info->periodic) {
+    info->delayCycles = info->maxDelayCycles;
+  } else {
+    info->delayCycles = 0;
+    info->active = false;
+  }
+}
+
 ReturnValue_t DeviceHandlerBase::getStorageData(store_address_t storageAddress, uint8_t** data,
                                                 size_t* len) {
   size_t lenTmp;
@@ -970,6 +1007,10 @@ ReturnValue_t DeviceHandlerBase::enableReplyInReplyMap(DeviceCommandMap::iterato
     info->delayCycles = info->maxDelayCycles;
     info->command = command;
     command->second.expectedReplies = expectedReplies;
+    if (info->countdown != nullptr) {
+      info->countdown->resetTimer();
+    }
+    info->active = true;
     return RETURN_OK;
   } else {
     return NO_REPLY_EXPECTED;
@@ -1204,7 +1245,8 @@ void DeviceHandlerBase::setParentQueue(MessageQueueId_t parentQueueId) {
 bool DeviceHandlerBase::isAwaitingReply() {
   std::map<DeviceCommandId_t, DeviceReplyInfo>::iterator iter;
   for (iter = deviceReplyMap.begin(); iter != deviceReplyMap.end(); ++iter) {
-    if (iter->second.delayCycles != 0) {
+    if ((iter->second.delayCycles != 0 && iter->second.countdown == nullptr) ||
+        (iter->second.active && iter->second.countdown != nullptr)) {
       return true;
     }
   }
@@ -1360,6 +1402,9 @@ uint8_t DeviceHandlerBase::getReplyDelayCycles(DeviceCommandId_t deviceCommand)
   if (iter == deviceReplyMap.end()) {
     return 0;
   }
+  else if (iter->second.countdown != nullptr) {
+    return 0;
+  }
   return iter->second.delayCycles;
 }
 

src/fsfw/devicehandlers/DeviceHandlerBase.h

@@ -166,7 +166,7 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    * @param counter Specifies which Action to perform
    * @return RETURN_OK for successful execution
    */
-  virtual ReturnValue_t performOperation(uint8_t counter);
+  virtual ReturnValue_t performOperation(uint8_t counter) override;
 
   /**
    * @brief  Initializes the device handler
@@ -176,7 +176,7 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    * Calls fillCommandAndReplyMap().
    * @return
    */
-  virtual ReturnValue_t initialize();
+  virtual ReturnValue_t initialize() override;
 
   /**
    * @brief   Intialization steps performed after all tasks have been created.
@@ -451,6 +451,9 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    * by the device repeatedly without request) or not. Default is aperiodic (0).
    * Please note that periodic replies are disabled by default. You can enable them with
    * #updatePeriodicReply
+   * @param countdown Instead of using maxDelayCycles to timeout a device reply it is also possible
+   *                  to provide a pointer to a Countdown object which will signal the timeout
+   *                  when expired
    * @return	- @c RETURN_OK when the command was successfully inserted,
    *          - @c RETURN_FAILED else.
    */
@@ -458,7 +461,8 @@ class DeviceHandlerBase : public DeviceHandlerIF,
                                            LocalPoolDataSetBase *replyDataSet = nullptr,
                                            size_t replyLen = 0, bool periodic = false,
                                            bool hasDifferentReplyId = false,
-                                           DeviceCommandId_t replyId = 0);
+                                           DeviceCommandId_t replyId = 0,
+                                           Countdown *countdown = nullptr);
   /**
    * @brief 	This is a helper method to insert replies in the reply map.
    * @param deviceCommand	Identifier of the reply to add.
@@ -468,12 +472,15 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    * by the device repeatedly without request) or not. Default is aperiodic (0).
    * Please note that periodic replies are disabled by default. You can enable them with
    * #updatePeriodicReply
+   * @param countdown Instead of using maxDelayCycles to timeout a device reply it is also possible
+   *                  to provide a pointer to a Countdown object which will signal the timeout
+   *                  when expired
    * @return	- @c RETURN_OK when the command was successfully inserted,
    *          - @c RETURN_FAILED else.
    */
   ReturnValue_t insertInReplyMap(DeviceCommandId_t deviceCommand, uint16_t maxDelayCycles,
                                  LocalPoolDataSetBase *dataSet = nullptr, size_t replyLen = 0,
-                                 bool periodic = false);
+                                 bool periodic = false, Countdown *countdown = nullptr);
 
   /**
    * @brief   A simple command to add a command to the commandList.
@@ -792,6 +799,11 @@ class DeviceHandlerBase : public DeviceHandlerIF,
     LocalPoolDataSetBase *dataSet = nullptr;
     //! The command that expects this reply.
     DeviceCommandMap::iterator command;
+    //! Instead of using delayCycles to specify the maximum time to wait for the device reply, it
+    //! is also possible specify a countdown
+    Countdown* countdown = nullptr;
+    //! will be set to true when reply is enabled
+    bool active = false;
   };
 
   using DeviceReplyMap = std::map<DeviceCommandId_t, DeviceReplyInfo>;
@@ -1068,11 +1080,12 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    * @param parameter1	Optional parameter 1
    * @param parameter2	Optional parameter 2
    */
-  void triggerEvent(Event event, uint32_t parameter1 = 0, uint32_t parameter2 = 0);
+  void triggerEvent(Event event, uint32_t parameter1 = 0, uint32_t parameter2 = 0) override;
   /**
    * Same as triggerEvent, but for forwarding if object is used as proxy.
    */
-  virtual void forwardEvent(Event event, uint32_t parameter1 = 0, uint32_t parameter2 = 0) const;
+  virtual void forwardEvent(Event event, uint32_t parameter1 = 0,
+                            uint32_t parameter2 = 0) const override;
 
   /**
    * Checks if current mode is transitional mode.
@@ -1253,6 +1266,17 @@ class DeviceHandlerBase : public DeviceHandlerIF,
    */
   void doGetRead(void);
 
+  /**
+   * @brief Handles disabling of replies which use a timeout to detect missed replies.
+   */
+  void disableTimeoutControlledReply(DeviceReplyInfo* info);
+
+  /**
+   * @brief Handles disabling of replies which use a number of maximum delay cycles to detect
+   *        missed replies.
+   */
+  void disableDelayCyclesControlledReply(DeviceReplyInfo* info);
+
   /**
    * Retrive data from the #IPCStore.
    *

src/fsfw/globalfunctions/matching/MatchTree.h

@@ -25,7 +25,7 @@ class MatchTree : public SerializeableMatcherIF<T>, public BinaryTree<Serializea
       : BinaryTree<SerializeableMatcherIF<T>>(root.element), maxDepth(maxDepth) {}
   MatchTree() : BinaryTree<SerializeableMatcherIF<T>>(), maxDepth(-1) {}
   virtual ~MatchTree() {}
-  virtual bool match(T number) { return matchesTree(number); }
+  virtual bool match(T number) override { return matchesTree(number); }
   bool matchesTree(T number) {
     iterator iter = this->begin();
     if (iter == this->end()) {

src/fsfw/globalfunctions/matching/RangeMatcher.h

@@ -15,7 +15,7 @@ class RangeMatcher : public SerializeableMatcherIF<T> {
   RangeMatcher(T lowerBound, T upperBound, bool inverted = false)
       : inverted(inverted), lowerBound(lowerBound), upperBound(upperBound) {}
 
-  bool match(T input) {
+  bool match(T input) override {
     if (inverted) {
       return !doMatch(input);
     } else {

src/fsfw/monitoring/MonitoringMessageContent.h

@@ -34,7 +34,7 @@ class MonitoringReportContent : public SerialLinkedListAdapter<SerializeIF> {
   SerializeElement<T> limitValue;
   SerializeElement<ReturnValue_t> oldState;
   SerializeElement<ReturnValue_t> newState;
-  uint8_t rawTimestamp[TimeStamperIF::MISSION_TIMESTAMP_SIZE];
+  uint8_t rawTimestamp[TimeStamperIF::MISSION_TIMESTAMP_SIZE] = {};
   SerializeElement<SerialBufferAdapter<uint8_t>> timestampSerializer;
   TimeStamperIF* timeStamper;
   MonitoringReportContent()
@@ -46,7 +46,6 @@ class MonitoringReportContent : public SerialLinkedListAdapter<SerializeIF> {
         limitValue(0),
         oldState(0),
         newState(0),
-        rawTimestamp({0}),
         timestampSerializer(rawTimestamp, sizeof(rawTimestamp)),
         timeStamper(NULL) {
     setAllNext();

src/fsfw/objectmanager/SystemObject.h

@@ -48,9 +48,10 @@ class SystemObject : public SystemObjectIF {
   virtual ~SystemObject();
   object_id_t getObjectId() const override;
   virtual ReturnValue_t initialize() override;
-  virtual ReturnValue_t checkObjectConnections();
+  virtual ReturnValue_t checkObjectConnections() override;
 
-  virtual void forwardEvent(Event event, uint32_t parameter1 = 0, uint32_t parameter2 = 0) const;
+  virtual void forwardEvent(Event event, uint32_t parameter1 = 0,
+                            uint32_t parameter2 = 0) const override;
 };
 
 #endif /* FSFW_OBJECTMANAGER_SYSTEMOBJECT_H_ */

src/fsfw/osal/common/UdpTcPollingTask.cpp

@@ -16,11 +16,13 @@
 //! Debugging preprocessor define.
 #define FSFW_UDP_RECV_WIRETAPPING_ENABLED 0
 
+const timeval UdpTcPollingTask::DEFAULT_TIMEOUT = {0, 500000};
+
 UdpTcPollingTask::UdpTcPollingTask(object_id_t objectId, object_id_t tmtcUdpBridge,
                                    size_t maxRecvSize, double timeoutSeconds)
     : SystemObject(objectId), tmtcBridgeId(tmtcUdpBridge) {
-  if (frameSize > 0) {
+  if (maxRecvSize > 0) {
-    this->frameSize = frameSize;
+    this->frameSize = maxRecvSize;
   } else {
     this->frameSize = DEFAULT_MAX_RECV_SIZE;
   }
@@ -31,22 +33,20 @@ UdpTcPollingTask::UdpTcPollingTask(object_id_t objectId, object_id_t tmtcUdpBrid
   receptionBuffer.resize(this->frameSize);
 
   if (timeoutSeconds == -1) {
-    receptionTimeout = DEFAULT_TIMEOUT;
+    receptionTimeout = UdpTcPollingTask::DEFAULT_TIMEOUT;
   } else {
     receptionTimeout = timevalOperations::toTimeval(timeoutSeconds);
   }
 }
 
-UdpTcPollingTask::~UdpTcPollingTask() {}
+[[noreturn]] ReturnValue_t UdpTcPollingTask::performOperation(uint8_t opCode) {
-
-ReturnValue_t UdpTcPollingTask::performOperation(uint8_t opCode) {
   /* Sender Address is cached here. */
-  struct sockaddr senderAddress;
+  struct sockaddr senderAddress {};
   socklen_t senderAddressSize = sizeof(senderAddress);
 
   /* Poll for new UDP datagrams in permanent loop. */
   while (true) {
-    int bytesReceived =
+    ssize_t bytesReceived =
         recvfrom(this->serverSocket, reinterpret_cast<char*>(receptionBuffer.data()), frameSize,
                  receptionFlags, &senderAddress, &senderAddressSize);
     if (bytesReceived == SOCKET_ERROR) {
@@ -70,7 +70,6 @@ ReturnValue_t UdpTcPollingTask::performOperation(uint8_t opCode) {
     }
     tmtcBridge->checkAndSetClientAddress(senderAddress);
   }
-  return HasReturnvaluesIF::RETURN_OK;
 }
 
 ReturnValue_t UdpTcPollingTask::handleSuccessfullTcRead(size_t bytesRead) {
@@ -155,7 +154,7 @@ void UdpTcPollingTask::setTimeout(double timeoutSeconds) {
 #endif
   }
 #elif defined(PLATFORM_UNIX)
-  timeval tval;
+  timeval tval{};
   tval = timevalOperations::toTimeval(timeoutSeconds);
   int result = setsockopt(serverSocket, SOL_SOCKET, SO_RCVTIMEO, &tval, sizeof(receptionTimeout));
   if (result == -1) {

src/fsfw/osal/common/UdpTcPollingTask.h

@@ -21,11 +21,11 @@ class UdpTcPollingTask : public TcpIpBase, public SystemObject, public Executabl
  public:
   static constexpr size_t DEFAULT_MAX_RECV_SIZE = 1500;
   //! 0.5  default milliseconds timeout for now.
-  static constexpr timeval DEFAULT_TIMEOUT = {0, 500};
+  static const timeval DEFAULT_TIMEOUT;
 
   UdpTcPollingTask(object_id_t objectId, object_id_t tmtcUdpBridge, size_t maxRecvSize = 0,
                    double timeoutSeconds = -1);
-  virtual ~UdpTcPollingTask();
+  ~UdpTcPollingTask() override = default;
 
   /**
    * Turn on optional timeout for UDP polling. In the default mode,
@@ -34,9 +34,9 @@ class UdpTcPollingTask : public TcpIpBase, public SystemObject, public Executabl
    */
   void setTimeout(double timeoutSeconds);
 
-  virtual ReturnValue_t performOperation(uint8_t opCode) override;
+  [[noreturn]] ReturnValue_t performOperation(uint8_t opCode) override;
-  virtual ReturnValue_t initialize() override;
+  ReturnValue_t initialize() override;
-  virtual ReturnValue_t initializeAfterTaskCreation() override;
+  ReturnValue_t initializeAfterTaskCreation() override;
 
  protected:
   StorageManagerIF* tcStore = nullptr;
@@ -51,7 +51,7 @@ class UdpTcPollingTask : public TcpIpBase, public SystemObject, public Executabl
   std::vector<uint8_t> receptionBuffer;
 
   size_t frameSize = 0;
-  timeval receptionTimeout;
+  timeval receptionTimeout{};
 
   ReturnValue_t handleSuccessfullTcRead(size_t bytesRead);
 };

src/fsfw/osal/common/UdpTmTcBridge.cpp

@@ -20,13 +20,13 @@
 const std::string UdpTmTcBridge::DEFAULT_SERVER_PORT = tcpip::DEFAULT_SERVER_PORT;
 
 UdpTmTcBridge::UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
-                             std::string udpServerPort, object_id_t tmStoreId,
+                             const std::string &udpServerPort_, object_id_t tmStoreId,
                              object_id_t tcStoreId)
     : TmTcBridge(objectId, tcDestination, tmStoreId, tcStoreId) {
-  if (udpServerPort == "") {
+  if (udpServerPort_.empty()) {
-    this->udpServerPort = DEFAULT_SERVER_PORT;
+    udpServerPort = DEFAULT_SERVER_PORT;
   } else {
-    this->udpServerPort = udpServerPort;
+    udpServerPort = udpServerPort_;
   }
 
   mutex = MutexFactory::instance()->createMutex();
@@ -117,8 +117,8 @@ ReturnValue_t UdpTmTcBridge::sendTm(const uint8_t *data, size_t dataLen) {
   tcpip::printAddress(&clientAddress);
 #endif
 
-  int bytesSent = sendto(serverSocket, reinterpret_cast<const char *>(data), dataLen, flags,
+  ssize_t bytesSent = sendto(serverSocket, reinterpret_cast<const char *>(data), dataLen, flags,
-                         &clientAddress, clientAddressLen);
+                             &clientAddress, clientAddressLen);
   if (bytesSent == SOCKET_ERROR) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
     sif::warning << "TmTcUdpBridge::sendTm: Send operation failed." << std::endl;
@@ -150,7 +150,7 @@ void UdpTmTcBridge::checkAndSetClientAddress(sockaddr &newAddress) {
   clientAddressLen = sizeof(clientAddress);
 }
 
-void UdpTmTcBridge::setMutexProperties(MutexIF::TimeoutType timeoutType, dur_millis_t timeoutMs) {
+void UdpTmTcBridge::setMutexProperties(MutexIF::TimeoutType timeoutType_, dur_millis_t timeoutMs) {
-  this->timeoutType = timeoutType;
+  timeoutType = timeoutType_;
-  this->mutexTimeoutMs = timeoutMs;
+  mutexTimeoutMs = timeoutMs;
 }

src/fsfw/osal/common/UdpTmTcBridge.h

@@ -29,10 +29,10 @@ class UdpTmTcBridge : public TmTcBridge, public TcpIpBase {
   /* The ports chosen here should not be used by any other process. */
   static const std::string DEFAULT_SERVER_PORT;
 
-  UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination, std::string udpServerPort = "",
+  UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
-                object_id_t tmStoreId = objects::TM_STORE,
+                const std::string& udpServerPort = "", object_id_t tmStoreId = objects::TM_STORE,
                 object_id_t tcStoreId = objects::TC_STORE);
-  virtual ~UdpTmTcBridge();
+  ~UdpTmTcBridge() override;
 
   /**
    * Set properties of internal mutex.
@@ -46,12 +46,12 @@ class UdpTmTcBridge : public TmTcBridge, public TcpIpBase {
   std::string getUdpPort() const;
 
  protected:
-  virtual ReturnValue_t sendTm(const uint8_t* data, size_t dataLen) override;
+  ReturnValue_t sendTm(const uint8_t* data, size_t dataLen) override;
 
  private:
   std::string udpServerPort;
 
-  struct sockaddr clientAddress;
+  struct sockaddr clientAddress = {};
   socklen_t clientAddressLen = 0;
 
   //! Access to the client address is mutex protected as it is set by another task.

src/fsfw/osal/freertos/FixedTimeslotTask.cpp

@@ -46,7 +46,7 @@ void FixedTimeslotTask::missedDeadlineCounter() {
   FixedTimeslotTask::deadlineMissedCount++;
   if (FixedTimeslotTask::deadlineMissedCount % 10 == 0) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::error << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines."
+    sif::warning << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines"
                << std::endl;
 #endif
   }

src/fsfw/osal/host/CMakeLists.txt

@@ -1,24 +1,27 @@
-target_sources(${LIB_FSFW_NAME} 
+target_sources(${LIB_FSFW_NAME} PRIVATE
-	PRIVATE 
+  Clock.cpp
-		Clock.cpp
+  FixedTimeslotTask.cpp
-		FixedTimeslotTask.cpp
+  MessageQueue.cpp
-		MessageQueue.cpp
+  Mutex.cpp
-		Mutex.cpp
+  MutexFactory.cpp
-		MutexFactory.cpp
+  PeriodicTask.cpp
-		PeriodicTask.cpp
+  QueueFactory.cpp
-		QueueFactory.cpp
+  QueueMapManager.cpp
-		QueueMapManager.cpp
+  SemaphoreFactory.cpp
-		SemaphoreFactory.cpp
+  TaskFactory.cpp
-		TaskFactory.cpp
+  taskHelpers.cpp
-		taskHelpers.cpp
 )
 
 if(UNIX)
-	find_package(Threads REQUIRED)
+  find_package(Threads REQUIRED)
+
+  target_link_libraries(${LIB_FSFW_NAME} PRIVATE
+    ${CMAKE_THREAD_LIBS_INIT}
+  )
+  if(NOT APPLE)
+    target_link_libraries(${LIB_FSFW_NAME} PRIVATE
+      rt
+      )
+  endif()
 
-	target_link_libraries(${LIB_FSFW_NAME} 
-	PRIVATE
-		rt
-		${CMAKE_THREAD_LIBS_INIT}
-	)
 endif()

src/fsfw/osal/linux/CMakeLists.txt

@@ -1,29 +1,29 @@
 target_sources(${LIB_FSFW_NAME} PRIVATE
-    Clock.cpp
+  Clock.cpp
-    BinarySemaphore.cpp
+  BinarySemaphore.cpp
-    CountingSemaphore.cpp
+  CountingSemaphore.cpp
-    FixedTimeslotTask.cpp
+  FixedTimeslotTask.cpp
-    InternalErrorCodes.cpp
+  InternalErrorCodes.cpp
-    MessageQueue.cpp
+  MessageQueue.cpp
-    Mutex.cpp
+  Mutex.cpp
-    MutexFactory.cpp
+  MutexFactory.cpp
-    PeriodicPosixTask.cpp
+  PeriodicPosixTask.cpp
-    PosixThread.cpp
+  PosixThread.cpp
-    QueueFactory.cpp
+  QueueFactory.cpp
-    SemaphoreFactory.cpp
+  SemaphoreFactory.cpp
-    TaskFactory.cpp
+  TaskFactory.cpp
-    tcpipHelpers.cpp
+  tcpipHelpers.cpp
-    unixUtility.cpp
+  unixUtility.cpp
-)
+  )
 
 find_package(Threads REQUIRED)
 
-target_link_libraries(${LIB_FSFW_NAME} PRIVATE
+target_link_libraries(${LIB_FSFW_NAME} PUBLIC
-    ${CMAKE_THREAD_LIBS_INIT}
+  ${CMAKE_THREAD_LIBS_INIT}
+  )
+
+if(NOT APPLE)
+  target_link_libraries(${LIB_FSFW_NAME} PUBLIC
     rt
-)
+  )
-
+endif()
-target_link_libraries(${LIB_FSFW_NAME} INTERFACE
-    ${CMAKE_THREAD_LIBS_INIT}
-)
-

src/fsfw/osal/linux/FixedTimeslotTask.cpp

@@ -87,7 +87,7 @@ void FixedTimeslotTask::missedDeadlineCounter() {
   FixedTimeslotTask::deadlineMissedCount++;
   if (FixedTimeslotTask::deadlineMissedCount % 10 == 0) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::error << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines."
+    sif::warning << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines"
                << std::endl;
 #endif
   }

src/fsfw/osal/rtems/FixedTimeslotTask.cpp

@@ -50,7 +50,7 @@ void FixedTimeslotTask::missedDeadlineCounter() {
   FixedTimeslotTask::deadlineMissedCount++;
   if (FixedTimeslotTask::deadlineMissedCount % 10 == 0) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::error << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines."
+    sif::warning << "PST missed " << FixedTimeslotTask::deadlineMissedCount << " deadlines"
                << std::endl;
 #endif
   }

src/fsfw/power/Fuse.h

@@ -54,7 +54,7 @@ class Fuse : public SystemObject,
 
   ReturnValue_t check();
   uint8_t getFuseId() const;
-  ReturnValue_t initialize();
+  ReturnValue_t initialize() override;
   DeviceList devices;
   ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
                           SerializeIF::Endianness streamEndianness) const override;

src/fsfw/pus/Service3Housekeeping.h

@@ -43,7 +43,7 @@ class Service3Housekeeping : public CommandingServiceBase, public AcceptsHkPacke
                             CommandMessage* optionalNextCommand, object_id_t objectId,
                             bool* isStep) override;
 
-  virtual MessageQueueId_t getHkQueue() const;
+  virtual MessageQueueId_t getHkQueue() const override;
 
  private:
   enum class Subservice {

src/fsfw/subsystem/Subsystem.h

@@ -155,18 +155,18 @@ class Subsystem : public SubsystemBase, public HasModeSequenceIF {
 
   ReturnValue_t deleteTable(Mode_t id);
 
-  virtual void performChildOperation();
+  virtual void performChildOperation() override;
 
-  virtual ReturnValue_t handleCommandMessage(CommandMessage *message);
+  virtual ReturnValue_t handleCommandMessage(CommandMessage *message) override;
 
   bool isFallbackSequence(Mode_t SequenceId);
 
   bool isTableUsed(Mode_t tableId);
 
   virtual ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
-                                         uint32_t *msToReachTheMode);
+                                         uint32_t *msToReachTheMode) override;
 
-  virtual void startTransition(Mode_t mode, Submode_t submode);
+  virtual void startTransition(Mode_t mode, Submode_t submode) override;
 
   void sendSerializablesAsCommandMessage(Command_t command, SerializeIF **elements, uint8_t count);
 

src/fsfw/subsystem/SubsystemBase.h

@@ -137,9 +137,9 @@ class SubsystemBase : public SystemObject,
 
   virtual void getMode(Mode_t *mode, Submode_t *submode) override;
 
-  virtual void setToExternalControl();
+  virtual void setToExternalControl() override;
 
-  virtual void announceMode(bool recursive);
+  virtual void announceMode(bool recursive) override;
 
   virtual void modeChanged();
 };

src/fsfw/timemanager/CCSDSTime.cpp

@@ -6,10 +6,6 @@
 
 #include "fsfw/FSFW.h"
 
-CCSDSTime::CCSDSTime() {}
-
-CCSDSTime::~CCSDSTime() {}
-
 ReturnValue_t CCSDSTime::convertToCcsds(Ccs_seconds* to, const Clock::TimeOfDay_t* from) {
   ReturnValue_t result = checkTimeOfDay(from);
   if (result != RETURN_OK) {
@@ -428,7 +424,7 @@ ReturnValue_t CCSDSTime::convertFromCUC(timeval* to, const uint8_t* from, size_t
   from++;
   ReturnValue_t result = convertFromCUC(to, pField, from, foundLength, maxLength - 1);
   if (result == HasReturnvaluesIF::RETURN_OK) {
-    if (foundLength != NULL) {
+    if (foundLength != nullptr) {
       *foundLength += 1;
     }
   }
@@ -588,18 +584,18 @@ ReturnValue_t CCSDSTime::convertFromCUC(timeval* to, uint8_t pField, const uint8
   uint8_t nCoarse = ((pField & 0b1100) >> 2) + 1;
   uint8_t nFine = (pField & 0b11);
   size_t totalLength = nCoarse + nFine;
-  if (foundLength != NULL) {
+  if (foundLength != nullptr) {
     *foundLength = totalLength;
   }
   if (totalLength > maxLength) {
     return LENGTH_MISMATCH;
   }
-  for (int count = 0; count < nCoarse; count++) {
+  for (int count = nCoarse; count > 0; count--) {
-    secs += *from << ((nCoarse * 8 - 8) * (1 + count));
+    secs += *from << (count * 8 - 8);
     from++;
   }
-  for (int count = 0; count < nFine; count++) {
+  for (int count = nFine; count > 0; count--) {
-    subSeconds += *from << ((nFine * 8 - 8) * (1 + count));
+    subSeconds += *from << (count * 8 - 8);
     from++;
   }
   // Move to POSIX epoch.

src/fsfw/timemanager/CCSDSTime.h

@@ -161,18 +161,37 @@ class CCSDSTime : public HasReturnvaluesIF {
    */
   static ReturnValue_t convertFromCcsds(timeval *to, uint8_t const *from, size_t *foundLength,
                                         size_t maxLength);
-
+  /**
+   * @brief Currently unsupported conversion due to leapseconds
+   *
+   * @param to Time Of Day (UTC)
+   * @param from Buffer to take the CUC from
+   * @param length Length of buffer
+   * @return ReturnValue_t UNSUPPORTED_TIME_FORMAT in any case ATM
+   */
   static ReturnValue_t convertFromCUC(Clock::TimeOfDay_t *to, uint8_t const *from, uint8_t length);
-
+  /**
+   * @brief Converts from CCSDS CUC to timeval
+   *
+   * If input is CCSDS Epoch this is TAI! -> No leapsecond support.
+   *
+   * Currently, it only supports seconds + 2 Byte Subseconds (1/65536 seconds)
+   *
+   *
+   * @param to Timeval to write the result to
+   * @param from Buffer to read from
+   * @param foundLength Length found by this function (can be nullptr if unused)
+   * @param maxLength Max length of the buffer to be read
+   * @return ReturnValue_t - RETURN_OK if successful
+   *                       - LENGTH_MISMATCH if expected length is larger than maxLength
+   */
   static ReturnValue_t convertFromCUC(timeval *to, uint8_t const *from, size_t *foundLength,
                                       size_t maxLength);
-
   static ReturnValue_t convertFromCUC(timeval *to, uint8_t pField, uint8_t const *from,
                                       size_t *foundLength, size_t maxLength);
 
   static ReturnValue_t convertFromCCS(timeval *to, uint8_t const *from, size_t *foundLength,
                                       size_t maxLength);
-
   static ReturnValue_t convertFromCCS(timeval *to, uint8_t pField, uint8_t const *from,
                                       size_t *foundLength, size_t maxLength);
 
@@ -192,8 +211,8 @@ class CCSDSTime : public HasReturnvaluesIF {
   static uint32_t subsecondsToMicroseconds(uint16_t subseconds);
 
  private:
-  CCSDSTime();
+  CCSDSTime(){};
-  virtual ~CCSDSTime();
+  virtual ~CCSDSTime(){};
   /**
    * checks a ccs time stream for validity
    *

src/fsfw/timemanager/Countdown.cpp

@@ -1,7 +1,12 @@
 #include "fsfw/timemanager/Countdown.h"
 
-Countdown::Countdown(uint32_t initialTimeout) : timeout(initialTimeout) {
+Countdown::Countdown(uint32_t initialTimeout, bool startImmediately) : timeout(initialTimeout) {
-  setTimeout(initialTimeout);
+  if (startImmediately) {
+    setTimeout(initialTimeout);
+  }
+  else {
+    timeout = initialTimeout;
+  }
 }
 
 Countdown::~Countdown() {}

src/fsfw/timemanager/Countdown.h

@@ -26,8 +26,9 @@ class Countdown {
    * Otherwise a call to hasTimedOut might return True.
    *
    * @param initialTimeout Countdown duration in milliseconds
+   * @param startImmediately  Set to false if countdown should not be started immediately
    */
-  Countdown(uint32_t initialTimeout = 0);
+  Countdown(uint32_t initialTimeout = 0, bool startImmediately = true);
   ~Countdown();
   /**
    * Call to set a new countdown duration.

src/fsfw/tmtcpacket/SpacePacket.cpp

@@ -19,8 +19,8 @@ SpacePacket::SpacePacket(uint16_t packetDataLength, bool isTelecommand, uint16_t
 SpacePacket::~SpacePacket(void) {}
 
 bool SpacePacket::addWholeData(const uint8_t* p_Data, uint32_t packet_size) {
-  if (packet_size <= sizeof(this->data)) {
+  if (packet_size <= sizeof(this->localData)) {
-    memcpy(&this->localData.byteStream, p_Data, packet_size);
+    memcpy(this->localData.byteStream, p_Data, packet_size);
     return true;
   } else {
     return false;

src/fsfw/tmtcservices/CommandingServiceBase.h

@@ -95,7 +95,7 @@ class CommandingServiceBase : public SystemObject,
    */
   virtual ReturnValue_t performOperation(uint8_t opCode) override;
 
-  virtual uint16_t getIdentifier();
+  virtual uint16_t getIdentifier() override;
 
   /**
    * Returns the requestQueue MessageQueueId_t
@@ -104,7 +104,7 @@ class CommandingServiceBase : public SystemObject,
    *
    * @return requestQueue messageQueueId_t
    */
-  virtual MessageQueueId_t getRequestQueue();
+  virtual MessageQueueId_t getRequestQueue() override;
 
   /**
    * Returns the commandQueue MessageQueueId_t

tests/src/fsfw_tests/unit/timemanager/TestCCSDSTime.cpp

@@ -179,6 +179,27 @@ TEST_CASE("CCSDSTime Tests", "[TestCCSDSTime]") {
     CHECK(todFromCCSDS.second == time.second);
     CHECK(todFromCCSDS.usecond == 123000);
   }
+  SECTION("CUC") {
+    timeval to;
+    // seconds = 0x771E960F, microseconds = 0x237
+    // microseconds = 567000
+    // This gives 37158.912 1/65536 seconds -> rounded to 37159 -> 0x9127
+    // This results in -> 567001 us
+    std::array<uint8_t, 7> cucBuffer = {
+        CCSDSTime::P_FIELD_CUC_6B_CCSDS, 0x77, 0x1E, 0x96, 0x0F, 0x91, 0x27};
+    size_t foundLength = 0;
+    auto result = CCSDSTime::convertFromCUC(&to, cucBuffer.data(), &foundLength, cucBuffer.size());
+    REQUIRE(result == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(foundLength == 7);
+    REQUIRE(to.tv_sec == 1619801999);  // TAI (no leap seconds)
+    REQUIRE(to.tv_usec == 567001);
+
+    Clock::TimeOfDay_t tod;
+    result = CCSDSTime::convertFromCUC(&tod, cucBuffer.data(), cucBuffer.size());
+    // This test must be changed if this is ever going to be implemented
+    REQUIRE(result == CCSDSTime::UNSUPPORTED_TIME_FORMAT);
+  }
+
   SECTION("CCSDS Failures") {
     Clock::TimeOfDay_t time;
     time.year = 2020;