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Change Log
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
# [unreleased]
# [v6.0.0]
## Fixes
- Bugfix for Serial Buffer Stream: Setting `doActive` to false now
actually fully disables printing.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/680
- `TcpTmTcServer.cpp`: The server was actually not able to handle
CCSDS packets which were clumped together. This has been fixed now.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/673
## Added
- DHB TM handler `handleDeviceTM` renamed to `handleDeviceTm` and now takes
`util::DataWrapper` as the data input argument. This allows more flexibility in the possible
types of telemetry.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/669
- Add `util::DataWrapper` class inside the `util` module. This is a tagged union which allows
to specify raw data either as a classic C-style raw pointer and size or as a `SerializeIF`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/668
- Add new `UnsignedByteField` class
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/660
## Changes
- Remove default secondary header argument for
`uint16_t getTcSpacePacketIdFromApid(uint16_t apid, bool secondaryHeaderFlag)` and
`uint16_t getTmSpacePacketIdFromApid(uint16_t apid, bool secondaryHeaderFlag)`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/689
- Removed `HasReturnvaluesIF` class in favor of `returnvalue` namespace with `OK` and `FAILED`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/659
- Overhaul of the TMTC stack, including various changes and improvements
for other modules
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/655
which also includes a migration guide
- Bump Catch2 dependency to regular version `v3.1.0`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/678
- `SerialBufferAdapter`: Rename `setBuffer` to `setConstBuffer` and update
API to expect `const uint8_t*` accordingly.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/677
- Remove the following user includes from `fsfw/events/Event.h` and
- `#include "events/subsystemIdRanges.h"`
- `#include "returnvalues/classIds.h"`
The user has to include those themselves now
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/675
- `DeviceHandlerBase`: Set command sender before calling `buildCommandFromCommand`.
This allows finishing action commands immediately inside the function.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/672
- `DeviceHandlerBase`: New signature of `handleDeviceTm` which expects
a `const SerializeIF&` and additional helper variant which expects `const uint8_t*`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/671
- Improvements for `AcceptsTelemetryIF` and `AcceptsTelecommandsIF`:
- Make functions `const` where it makes sense
- Add `const char* getName const` abstract function
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/684
- Move some generic `StorageManagerIF` implementations from `LocalPool` to
interface itself so it can be re-used more easily. Also add new
abstract function `bool hasDataAtId(store_address_t storeId) const`.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/685
- Refactoring of CFDP stack which was done during implementation of the CFDP source and destination
- New filesystem module, changes for filesystem abstraction `HasFileSystemIF` to better
fit requirements of CFDP
- New `HostFilesystem` implementation of the `HasFileSystemIF`
- New `cfdp::UserBase` class which is the abstraction for the CFDP user in an OBSW context.
- mib module for the CFDP stack
- PDU classes renamed from `...Serializer`/`...Deserializer` to `...Creator`/`...Reader`
- Renamed `TcDistributor` to `TcDistributorBase` to prevent confusion
- Refactored `TcDisitributorBase` to be more flexible and usable for CFDP distribution
- Renamed `CCSDSDistributor` to `CcsdsDistributor` and add feature which allows it
to remove the CCSDS header when routing a packet. This allows CCSDS agnostic receiver
implementation without an extra component
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/682
# [v5.0.0] 25.07.2022
## Changes
- Renamed auto-formatting script to `auto-formatter.sh` and made it more robust.
If `cmake-format` is installed, it will also auto-format the `CMakeLists.txt` files now.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/625
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/626
- Bump C++ required version to C++17. Every project which uses the FSFW and every modern
compiler supports it
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/622
- New CMake option `FSFW_HAL_LINUX_ADD_LIBGPIOD` to specifically exclude `gpiod` code.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/572
- HAL Devicehandlers: Periodic printout is run-time configurable now
- `oneShotAction` flag in the `TestTask` class is not static anymore
- `SimpleRingBuffer::writeData` now checks if the amount is larger than the total size of the
Buffer and rejects such writeData calls with `returnvalue::FAILED`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/586
- Major update for version handling, using `git describe` to fetch version information with git.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/601
- Add helper functions provided by [`cmake-modules`](https://github.com/bilke/cmake-modules)
manually now. Those should not change too often and only a small subset is needed
- Separate folder for easier update and for distinction
- LICENSE file included
- use `int` for version numbers to allow unset or uninitialized version
- Initialize Version object with numbers set to -1
- Instead of hardcoding the git hash, it is now retrieved from git
- `Version` now allows specifying additional version information like the git SHA1 hash and the
versions since the last tag
- Additional information is set to the last part of the git describe output for `FSFW_VERSION` now.
- Version still need to be hand-updated if the FSFW is not included as a submodule for now.
- IPC Message Queue Handling: Allow passing an optional `MqArgs` argument into the MessageQueue
creation call. It allows passing context information and an arbitrary user argument into
the message queue. Also streamlined and simplified `MessageQueue` implementation for all OSALs
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/583
- Internal API change: Moved the `fsfw_hal` to the `src` folder and integration and internal
tests part of `fsfw_tests` to `src`. Unittests are now in a dedicated folder called `unittests`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/653
### Task Module Refactoring
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/636
**Refactoring general task code**
- There was a lot of duplicate/boilerplate code inside the individual task IF OSAL implementations.
Remove it by introducing base classes `PeriodicTaskBase` and `FixedTimeslotTaskBase`.
**Refactor PeriodicTaskIF**
- Convert `virtual ReturnValue_t addComponent(object_id_t object)` to
`virtual ReturnValue_t addComponent(object_id_t object, uint8_t opCode = 0)`, allowing to pass
the operation code passed to `performOperation`. Updated API taking
an `ExecutableObjectIF` accordingly
**Refactor FixedTimeslotTaskIF**
- Add additional `addSlot` function which takes an `ExecutableObjectIF` pointer and its Object ID
**Refactor FixedSequenceSlot**
- Introduce typedef `CustomCheckFunc` for `ReturnValue_t (*customCheckFunction)(const SlotList&)`.
- Convert `ReturnValue_t (*customCheckFunction)(const SlotList&)` to
`ReturnValue_t (*customCheckFunction)(const SlotList&, void*)`, allowing arbitrary user arguments
for the custom checker
**Linux Task Module**
- Use composition instead of inheritance for the `PeriodicPosixTask` and make the `PosixTask` a
member of the class
### HAL
- HAL Linux Uart: Baudrate and bits per word are enums now, avoiding misconfigurations
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/585
- HAL Linux SPI: Set the Clock Default State when setting new SPI speed
and mode
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/573
- GPIO HAL: `Direction`, `GpioOperation` and `Levels` are enum classes now, which prevents
name clashes with Windows defines.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/572
- HAL Linux Uart: Baudrate and bits per word are enums now, avoiding misconfigurations
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/585
### Time
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/584 and
- `timeval` to `TimeOfDay_t`
- Added Mutex for gmtime calls: (compare http://www.opengate.at/blog/2020/01/timeless/)
- Moved the statics used by Clock in ClockCommon.cpp to this file
- Better check for leap seconds
- Added Unittests for Clock (only getter)
### Power
- `PowerSwitchIF`: Remove `const` specifier from `sendSwitchCommand` and `sendFuseOnCommand` and
also specify a `ReturnValue_t` return type
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
- Extend `PowerSwitcher` module to optionally check current state when calling `turnOn` or
`turnOff`. Tis can be helpful to avoid commanding switches which do not need commanding
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
## Removed
- Removed the `HkSwitchHelper`. This module should not be needed anymore, now that the local
datapools have been implemented.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/557
## Additions
- New constructor for PoolEntry which allows to simply specify the length of the pool entry.
This is also the new default constructor for scalar value with 0 as an initial value
- Added options for CI/CD builds: `FSFW_CICD_BUILD`. This allows the source code to know
whether it is running in CI/CD
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/623
- Basic `clion` support: Update `.gitignore` and add some basic run configurations
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/625
- LTO support: Allow using LTO/IPO by setting `FSFW_ENABLE_LTO=1`. CMake is able to detect whether
the user compiler supports IPO/LPO. LTO is on by default now. Most modern compilers support it,
can make good use of it and it usually makes the code faster and/or smaller.
After some more research:
Enabling LTO will actually cause the compiler to only produce thin LTO by adding
`-flto -fno-fat-lto-objects` to the compiler options. I am not sure this is an ideal choice
because if an application linking against the FSFW does not use LTO, there can be compile
issues (e.g. observed when compiling the FSFW tests without LTO). This is a known issue as
can be seen in the multiple CMake issues for it:
- https://gitlab.kitware.com/cmake/cmake/-/issues/22913,
- https://gitlab.kitware.com/cmake/cmake/-/issues/16808,
- https://gitlab.kitware.com/cmake/cmake/-/issues/21696
Easiest solution for now: Keep this option OFF by default.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/616
- Dedicated Version class and constant `fsfw::FSFW_VERSION` containing version information
inside `fsfw/version.h`
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/559
- Added generic PUS TC Scheduler Service 11. It depends on the new added Emebeded Template Library
(ETL) dependency.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/594
- Added ETL dependency and improved library dependency management
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/592
- Add a `DummyPowerSwitcher` module which can be useful for test setups when no PCDU is available
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
- New typedef for switcher type
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
- `Subsystem`: New API to add table and sequence entries
## HAL
- SPI: Cache the SPI device in the communication interface. Architecturally, this makes a
lot more sense because each ComIF should be responsible for one SPI bus.
- SPI: Move the empty transfer to update the line polarity to separate function. This means
it is not automatically called when calling the setter function for SPI speed and mode.
The user should call this function after locking the CS mutex if multiple SPI devices with
differing speeds and modes are attached to one bus.
- SPI: Getter functions for SPI speed and mode.
- I2C: Add wiretapping option for I2C. Enabled with `FSFW_HAL_I2C_WIRETAPPING` defined to 1.
## Fixed
- TCP TMTC Server: `MutexGuard` was not created properly in
`TcpTmTcServer::handleTmSending(socket_t connSocket, bool& tmSent)` call.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/618
- Fix infinite recursion in `prepareHealthSetReply` of PUS Health Service 201.
Is not currently used right now but might be used in the future
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/617
- Move some CMake directives further up top so they are not ignored
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/621
- Small bugfix in STM32 HAL for SPI
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/599
- HAL GPIO: Improved error checking in `LinuxLibgpioIF::configureGpios(...)`. If a GPIO
configuration fails, the function will exit prematurely with a dedicated error code
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/602
# [v4.0.0]
## Additions
- CFDP Packet Stack and related tests added. It also refactors the existing TMTC infastructure to
allow sending of CFDP packets to the CCSDS handlers.
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/528
- added virtual function to print datasets
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/544
- doSendRead Hook
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/545
- Dockumentation for DHB
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/551
### HAL additions
- Linux Command Executor, which can execute shell commands in blocking and non-blocking mode
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/536
- uio Mapper
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/543
## Changes
- Applied the `clang-format` auto-formatter to all source code
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/534
- Updated Catch2 to v3.0.0-preview4
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/538
- Changed CI to use prebuilt docker image
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/549
## Bugfix
- CMake fixes in PR https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/533 , was problematic
if the uppermost user `CMakeLists.txt` did not have the include paths set up properly, which
could lead to compile errors that `#include "fsfw/FSFW.h"` was not found.
- Fix for build regression in Catch2 v3.0.0-preview4
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/548
- Fix in unittest which failed on CI
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/552
- Fix in helper script
PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/553
## API Changes
- Aforementioned changes to existing TMTC stack
## Known bugs
# [v3.0.1]
## API Changes
## Bugfixes
* Version number was not updated for v3.0.0 #542
## Enhancement
## Known bugs
# [v3.0.0]
## API Changes
#### TCP Socket Changes
* Keep Open TCP Implementation #496
* The socket will now kept open after disconnect. This allows reconnecting.
* Only one connection is allowed
* No internal influence but clients need to change their Code.
* Add feature to open GPIO by line name #506
### Bitutil
* Unittests for Op Divider and Bitutility #510
### Filesystem IF changed
* Filesystem Base Interface: Use IF instead of void pointer #511
### STM32
* STM32 SPI Updates #518
## Bugfixes
* Small bugfix for LIS3 handler #504
* Spelling fixed for function names #509
* CMakeLists fixes #517
* Out of bound reads and writes in unittests #519
* Bug in TmPacketStoredPusC (#478)
* Windows ifdef fixed #529
## Enhancement
* FSFW.h.in more default values #491
* Minor updates for PUS services #498
* HasReturnvaluesIF naming for parameter #499
* Tests can now be built as part of FSFW and versioning moved to CMake #500
* Added integration test code #508
* More printouts for rejected TC packets #505
* Arrayprinter format improvements #514
* Adding code for CI with docker and jenkins #520
* Added new function in SerializeAdapter #513
* Enables simple deSerialize if you keep track of the buffer position yourself
* `` static ReturnValue_t deSerialize(T *object, const uint8_t* buffer,
size_t* deserSize, SerializeIF::Endianness streamEndianness) ``
* Unittest helper scripts has a new Parameter to open the coverage html in the webrowser #525
* ``'-o', '--open', Open coverage data in webbrowser``
* Documentation updated. Sphinx Documentation can now be build with python script #526
## Known bugs
* Version number was not updated for v3.0.0 #542
All Pull Requests:
Milestone: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/milestone/19
# [v2.0.0]
## API Changes
### File Structure changed to fit more common structure
* See pull request (#445)
* HAL is now part of the main project
* **See Instructions below:**
#### Instruction how to update existing / user code
* Changes in `#include`:
* Rename `internalError` in includes to `internalerror`
* Rename `fsfw/hal` to `fsfw_hal`
* Rename `fsfw/tests` to `fsfw_tests`
* Rename `osal/FreeRTOS` to `osal/freertos`
* Changes in `CMakeLists.txt`:
* Rename `OS_FSFW` to `FSFW_OSAL`
* Changes in `DleEncoder.cpp`
* Create an instance of the `DleEncoder` first before calling the `encode` and `decode` functions
### Removed osal/linux/Timer (#486)
* Was redundant to timemanager/Countdown
#### Instruction how to update existing / user code
* Use timemanager/Countdown instead
## Bugfixes
### TM Stack
* Increased TM stack robustness by introducing `nullptr` checks and more printouts (#483)
#### Host OSAL / FreeRTOS
* QueueMapManager Bugfix (NO_QUEUE was used as MessageQueueId) (#444)
#### Events
* Event output is now consistent (#447)
#### DLE Encoder
* Fixed possible out of bounds access in DLE Encoder (#492)
## Enhancment
* HAL as major new feature, also includes three MEMS devicehandlers as part of #481
* Linux HAL updates (#456)
* FreeRTOS Header cleaning update and Cmake tweaks (#442)
* Printer updates (#453)
* New returnvalue for for empty PST (#485)
* TMTC Bridge: Increase limit of packets stored (#484)
## Known bugs
* Bug in TmPacketStoredPusC (#478)
All Pull Requests:
Milestone: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/milestone/5
# [v1.2.0]
## API Changes
### FSFW Architecture
- New src folder which contains all source files except the HAL, contributed code and test code
- External and internal API mostly stayed the same
- Folder names are now all smaller case: internalError was renamed to internalerror and
FreeRTOS was renamed to freertos
- Warning if optional headers are used but the modules was not added to the source files to compile
### HAL
- HAL added back into FSFW. It is tightly bound to the FSFW, and compiling it as a static library
made using it more complicated than necessary
## Bugfixes
### FreeRTOS QueueMapManager
- Fixed a bug which causes the first generated Queue ID to be invalid
## Enhancements
### FSFW Architecture
- See API changes chapter. This change will keep the internal API consistent in the future
# [v1.1.0]
## API Changes
### PUS
- Added PUS C support
- SUBSYSTEM_IDs added for PUS Services
- Added new Parameter which must be defined in config: fsfwconfig::FSFW_MAX_TM_PACKET_SIZE
### ObjectManager
- ObjectManager is now a singelton
### Configuration
- Additional configuration option fsfwconfig::FSFW_MAX_TM_PACKET_SIZE which
need to be specified in FSFWConfig.h
### CMake
## Bugfixes
- timemanager/TimeStamperIF.h: Timestamp config was not used correctly, leading to different timestamp sizes than configured in fsfwconfig::FSFW_MISSION_TIMESTAMP_SIZE
- TCP server fixes
## Enhancements
### FreeRTOS Queue Handles
- Fixed an internal issue how FreeRTOS MessageQueues were handled
### Linux OSAL
- Better printf error messages
### CMake
- Check for C++11 as mininimum required Version
### Debug Output
- Changed Warning color to magenta, which is well readable on both dark and light mode IDEs
# Changes from ASTP 0.0.1 to 1.0.0
### Host OSAL
- Bugfix in MessageQueue, which caused the sender not to be set properly
- vRequestContextSwitchFromISR is declared extern "C" so it can be defined in
a C file without issues
### PUS Services
- It is now possible to change the message queue depth for the telecommand verification service (PUS1)
- The same is possible for the event reporting service (PUS5)
- PUS Health Service added, which allows to command and retrieve health via PUS packets
### EnhancedControllerBase
- New base class for a controller which also implements HasActionsIF and HasLocalDataPoolIF
### Local Pool
- Interface of LocalPools has changed. LocalPool is not a template anymore. Instead the size and
bucket number of the pools per page and the number of pages are passed to the ctor instead of
two ctor arguments and a template parameter
### Parameter Service
- The API of the parameter service has been changed to prevent inconsistencies
between documentation and actual code and to clarify usage.
- The parameter ID now consists of:
1. Domain ID (1 byte)
2. Unique Identifier (1 byte)
3. Linear Index (2 bytes)
The linear index can be used for arrays as well as matrices.
The parameter load command now explicitely expects the ECSS PTC and PFC
information as well as the rows and column number. Rows and column will
default to one, which is equivalent to one scalar parameter (the most
important use-case)
### File System Interface
- A new interfaces specifies the functions for a software object which exposes the file system of
a given hardware to use message based file handling (e.g. PUS commanding)
### Internal Error Reporter
- The new internal error reporter uses the local data pools. The pool IDs for
the exisiting three error values and the new error set will be hardcoded for
now, the the constructor for the internal error reporter just takes an object
ID for now.
### Device Handler Base
- There is an additional `PERFORM_OPERATION` step for the device handler base. It is important
that DHB users adapt their polling sequence tables to perform this step. This steps allows for
a clear distinction between operation and communication steps
- setNormalDatapoolEntriesInvalid is not an abstract method and a default implementation was provided
- getTransitionDelayMs is now an abstract method
### DeviceHandlerIF
### Events
- makeEvent function: Now takes three input parameters instead of two and
allows setting a unique ID. Event.cpp source file removed, functions now
defined in header directly. Namespaces renamed. Functions declared `constexpr`
### Commanding Service Base
- CSB uses the new fsfwconfig::FSFW_CSB_FIFO_DEPTH variable to determine the FIFO depth for each
CSB instance. This variable has to be set in the FSFWConfig.h file
### Service Interface
- Proper printf support contained in ServiceInterfacePrinter.h
- CPP ostream support now optional (can reduce executable size by 150 - 250 kB)
- Amalagated header which determines automatically which service interface to use depending on FSFWConfig.h configuration.
Users can just use #include <fsfw/serviceinterface/ServiceInterface.h>
- If CPP streams are excluded, sif:: calls won't work anymore and need to be replaced by their printf counterparts.
For the fsfw, this can be done by checking the processor define FSFW_CPP_OSTREAM_ENABLED from FSFWConfig.h.
For mission code, developers need to replace sif:: calls by the printf counterparts, but only if the CPP stream are excluded.
If this is not the case, everything should work as usual.
### ActionHelper and ActionMessage
- ActionHelper finish function and ActionMessage::setCompletionReply now expects explicit
information whether to report a success or failure message instead of deriving it implicitely
from returnvalue
### PUS Parameter Service 20
Added PUS parameter service 20 (only custom subservices available).