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Merge branch 'master' into mueller/MQM_IF_UpdateLinux

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Steffen Gaisser 2020-10-01 19:04:53 +02:00
commit 9bf0026b8a
4 changed files with 367 additions and 187 deletions
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147
container/ArrayList.h
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@ -1,15 +1,15 @@
#ifndef ARRAYLIST_H_
#define ARRAYLIST_H_
#ifndef FSFW_CONTAINER_ARRAYLIST_H_
#define FSFW_CONTAINER_ARRAYLIST_H_
#include "../returnvalues/HasReturnvaluesIF.h"
#include "../serialize/SerializeAdapter.h"
#include "../serialize/SerializeIF.h"
/**
* A List that stores its values in an array.
*
* The backend is an array that can be allocated by the class itself or supplied via ctor.
*
* @brief A List that stores its values in an array.
* @details
* The underlying storage is an array that can be allocated by the class
* itself or supplied via ctor.
*
* @ingroup container
*/
@ -20,6 +20,53 @@ public:
static const uint8_t INTERFACE_ID = CLASS_ID::ARRAY_LIST;
static const ReturnValue_t FULL = MAKE_RETURN_CODE(0x01);
/**
* This is the allocating constructor.
* It allocates an array of the specified size.
* @param maxSize
*/
ArrayList(count_t maxSize) :
size(0), maxSize_(maxSize), allocated(true) {
entries = new T[maxSize];
}
/**
* This is the non-allocating constructor
*
* It expects a pointer to an array of a certain size and initializes
* itself to it.
*
* @param storage the array to use as backend
* @param maxSize size of storage
* @param size size of data already present in storage
*/
ArrayList(T *storage, count_t maxSize, count_t size = 0) :
size(size), entries(storage), maxSize_(maxSize), allocated(false) {
}
/**
* Copying is forbiden by declaring copy ctor and copy assignment deleted
* It is too ambigous in this case.
* (Allocate a new backend? Use the same? What to do in an modifying call?)
*/
ArrayList(const ArrayList& other) = delete;
const ArrayList& operator=(const ArrayList& other) = delete;
/**
* Number of Elements stored in this List
*/
count_t size;
/**
* Destructor, if the allocating constructor was used, it deletes the array.
*/
virtual ~ArrayList() {
if (allocated) {
delete[] entries;
}
}
/**
* An Iterator to go trough an ArrayList
*
@ -31,10 +78,7 @@ public:
/**
* Empty ctor, points to NULL
*/
Iterator() :
value(0) {
}
Iterator(): value(0) {}
/**
* Initializes the Iterator to point to an element
@ -72,70 +116,31 @@ public:
return tmp;
}
T& operator*(){
T& operator*() {
return *value;
}
const T& operator*() const{
const T& operator*() const {
return *value;
}
T *operator->(){
T *operator->() {
return value;
}
const T *operator->() const{
const T *operator->() const {
return value;
}
//SHOULDDO this should be implemented as non-member
bool operator==(const typename ArrayList<T, count_t>::Iterator& other) const{
return (value == other.value);
}
//SHOULDDO this should be implemented as non-member
bool operator!=(const typename ArrayList<T, count_t>::Iterator& other) const {
return !(*this == other);
}
};
/**
* Number of Elements stored in this List
*/
count_t size;
/**
* This is the allocating constructor;
*
* It allocates an array of the specified size.
*
* @param maxSize
*/
ArrayList(count_t maxSize) :
size(0), maxSize_(maxSize), allocated(true) {
entries = new T[maxSize];
friend bool operator==(const ArrayList::Iterator& lhs,
const ArrayList::Iterator& rhs) {
return (lhs.value == rhs.value);
}
/**
* This is the non-allocating constructor
*
* It expects a pointer to an array of a certain size and initializes itself to it.
*
* @param storage the array to use as backend
* @param maxSize size of storage
* @param size size of data already present in storage
*/
ArrayList(T *storage, count_t maxSize, count_t size = 0) :
size(size), entries(storage), maxSize_(maxSize), allocated(false) {
}
/**
* Destructor, if the allocating constructor was used, it deletes the array.
*/
virtual ~ArrayList() {
if (allocated) {
delete[] entries;
}
friend bool operator!=(const ArrayList::Iterator& lhs,
const ArrayList::Iterator& rhs) {
return not (lhs.value == rhs.value);
}
/**
@ -191,7 +196,7 @@ public:
*
* @return maximum number of elements
*/
uint32_t maxSize() const {
size_t maxSize() const {
return this->maxSize_;
}
@ -226,19 +231,7 @@ public:
count_t remaining() {
return (maxSize_ - size);
}
private:
/**
* This is the copy constructor
*
* It is private, as copying is too ambigous in this case. (Allocate a new backend? Use the same?
* What to do in an modifying call?)
*
* @param other
*/
ArrayList(const ArrayList& other) :
size(other.size), entries(other.entries), maxSize_(other.maxSize_), allocated(
false) {
}
protected:
/**
* pointer to the array in which the entries are stored
@ -247,12 +240,14 @@ protected:
/**
* remembering the maximum size
*/
uint32_t maxSize_;
size_t maxSize_;
/**
* true if the array was allocated and needs to be deleted in the destructor.
*/
bool allocated;
};
#endif /* ARRAYLIST_H_ */
#endif /* FSFW_CONTAINER_ARRAYLIST_H_ */

39
container/FixedMap.h
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@ -7,14 +7,21 @@
#include <type_traits>
/**
* @brief Map implementation for maps with a pre-defined size.
* @details
* Can be initialized with desired maximum size.
* Iterator is used to access <key,value> pair and iterate through map entries.
* Complexity O(n).
* @warning Iterators return a non-const key_t in the pair.
* @warning A User is not allowed to change the key, otherwise the map is corrupted.
* @ingroup container
*/
template<typename key_t, typename T>
class FixedMap: public SerializeIF {
static_assert (std::is_trivially_copyable<T>::value or std::is_base_of<SerializeIF, T>::value,
"Types used in FixedMap must either be trivial copy-able or a derived Class from SerializeIF to be serialize-able");
static_assert (std::is_trivially_copyable<T>::value or
std::is_base_of<SerializeIF, T>::value,
"Types used in FixedMap must either be trivial copy-able or a "
"derived class from SerializeIF to be serialize-able");
public:
static const uint8_t INTERFACE_ID = CLASS_ID::FIXED_MAP;
static const ReturnValue_t KEY_ALREADY_EXISTS = MAKE_RETURN_CODE(0x01);
@ -54,6 +61,16 @@ public:
}
};
friend bool operator==(const typename FixedMap::Iterator& lhs,
const typename FixedMap::Iterator& rhs) {
return (lhs.value == rhs.value);
}
friend bool operator!=(const typename FixedMap::Iterator& lhs,
const typename FixedMap::Iterator& rhs) {
return not (lhs.value == rhs.value);
}
Iterator begin() const {
return Iterator(&theMap[0]);
}
@ -136,6 +153,24 @@ public:
return HasReturnvaluesIF::RETURN_OK;
}
bool empty() {
if(_size == 0) {
return true;
}
else {
return false;
}
}
bool full() {
if(_size >= theMap.maxSize()) {
return true;
}
else {
return false;
}
}
void clear() {
_size = 0;
}

259
container/FixedOrderedMultimap.h
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@ -1,10 +1,33 @@
#ifndef FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_H_
#define FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_H_
#ifndef FSFW_CONTAINER_FIXEDORDEREDMULTIMAP_H_
#define FSFW_CONTAINER_FIXEDORDEREDMULTIMAP_H_
#include "ArrayList.h"
#include <cstring>
#include <set>
/**
* @brief An associative container which allows multiple entries of the same key.
* @details
* Same keys are ordered by KEY_COMPARE function which is std::less<key_t> > by default.
*
* It uses the ArrayList, so technically this is not a real map, it is an array of pairs
* of type key_t, T. It is ordered by key_t as FixedMap but allows same keys. Thus it has a linear
* complexity O(n). As long as the number of entries remains low, this
* should not be an issue.
* The number of insertion and deletion operation should be minimized
* as those incur extensive memory move operations (the underlying container
* is not node based).
*
* Its of fixed size so no allocations are performed after the construction.
*
* The maximum size is given as first parameter of the constructor.
*
* It provides an iterator to do list iterations.
*
* The type T must have a copy constructor if it is not trivial copy-able.
*
* @warning Iterators return a non-const key_t in the pair.
* @warning A User is not allowed to change the key, otherwise the map is corrupted.
*
* \ingroup container
*/
template<typename key_t, typename T, typename KEY_COMPARE = std::less<key_t>>
@ -14,152 +37,170 @@ public:
static const ReturnValue_t MAP_FULL = MAKE_RETURN_CODE(0x01);
static const ReturnValue_t KEY_DOES_NOT_EXIST = MAKE_RETURN_CODE(0x02);
private:
typedef KEY_COMPARE compare;
compare myComp;
ArrayList<std::pair<key_t, T>, uint32_t> theMap;
uint32_t _size;
/***
* Constructor which needs a size_t for the maximum allowed size
*
* Can not be resized during runtime
*
* Allocates memory at construction
* @param maxSize size_t of Maximum allowed size
*/
FixedOrderedMultimap(size_t maxSize):theMap(maxSize), _size(0){
}
uint32_t findFirstIndex(key_t key, uint32_t startAt = 0) const {
if (startAt >= _size) {
return startAt + 1;
}
uint32_t i = startAt;
for (i = startAt; i < _size; ++i) {
if (theMap[i].first == key) {
return i;
}
}
return i;
}
uint32_t findNicePlace(key_t key) const {
uint32_t i = 0;
for (i = 0; i < _size; ++i) {
if (myComp(key, theMap[i].first)) {
return i;
}
}
return i;
}
void removeFromPosition(uint32_t position) {
if (_size <= position) {
return;
}
memmove(static_cast<void*>(&theMap[position]), static_cast<void*>(&theMap[position + 1]),
(_size - position - 1) * sizeof(std::pair<key_t,T>));
--_size;
}
public:
FixedOrderedMultimap(uint32_t maxSize) :
theMap(maxSize), _size(0) {
}
/***
* Virtual destructor frees Memory by deleting its member
*/
virtual ~FixedOrderedMultimap() {
}
class Iterator: public ArrayList<std::pair<key_t, T>, uint32_t>::Iterator {
/***
* Special iterator for FixedOrderedMultimap
*/
class Iterator: public ArrayList<std::pair<key_t, T>, size_t>::Iterator {
public:
Iterator() :
ArrayList<std::pair<key_t, T>, uint32_t>::Iterator() {
ArrayList<std::pair<key_t, T>, size_t>::Iterator() {
}
Iterator(std::pair<key_t, T> *pair) :
ArrayList<std::pair<key_t, T>, uint32_t>::Iterator(pair) {
ArrayList<std::pair<key_t, T>, size_t>::Iterator(pair) {
}
};
/***
* Returns an iterator pointing to the first element
* @return Iterator pointing to first element
*/
Iterator begin() const {
return Iterator(&theMap[0]);
}
/**
* Returns an iterator pointing to one element past the end
* @return Iterator pointing to one element past the end
*/
Iterator end() const {
return Iterator(&theMap[_size]);
}
uint32_t size() const {
/***
* Returns the current size of the map (not maximum size!)
* @return Current size
*/
size_t size() const{
return _size;
}
ReturnValue_t insert(key_t key, T value, Iterator *storedValue = nullptr) {
if (_size == theMap.maxSize()) {
return MAP_FULL;
}
uint32_t position = findNicePlace(key);
memmove(static_cast<void*>(&theMap[position + 1]),static_cast<void*>(&theMap[position]),
(_size - position) * sizeof(std::pair<key_t,T>));
theMap[position].first = key;
theMap[position].second = value;
++_size;
if (storedValue != nullptr) {
*storedValue = Iterator(&theMap[position]);
}
return HasReturnvaluesIF::RETURN_OK;
/**
* Clears the map, does not deallocate any memory
*/
void clear(){
_size = 0;
}
ReturnValue_t insert(std::pair<key_t, T> pair) {
return insert(pair.first, pair.second);
/**
* Returns the maximum size of the map
* @return Maximum size of the map
*/
size_t maxSize() const{
return theMap.maxSize();
}
ReturnValue_t exists(key_t key) const {
ReturnValue_t result = KEY_DOES_NOT_EXIST;
if (findFirstIndex(key) < _size) {
result = HasReturnvaluesIF::RETURN_OK;
}
return result;
}
/***
* Used to insert a key and value separately.
*
* @param[in] key Key of the new element
* @param[in] value Value of the new element
* @param[in/out] (optional) storedValue On success this points to the new value, otherwise a nullptr
* @return RETURN_OK if insert was successful, MAP_FULL if no space is available
*/
ReturnValue_t insert(key_t key, T value, Iterator *storedValue = nullptr);
ReturnValue_t erase(Iterator *iter) {
uint32_t i;
if ((i = findFirstIndex((*iter).value->first)) >= _size) {
return KEY_DOES_NOT_EXIST;
}
removeFromPosition(i);
if (*iter != begin()) {
(*iter)--;
} else {
*iter = begin();
}
return HasReturnvaluesIF::RETURN_OK;
}
/***
* Used to insert new pair instead of single values
*
* @param pair Pair to be inserted
* @return RETURN_OK if insert was successful, MAP_FULL if no space is available
*/
ReturnValue_t insert(std::pair<key_t, T> pair);
ReturnValue_t erase(key_t key) {
uint32_t i;
if ((i = findFirstIndex(key)) >= _size) {
return KEY_DOES_NOT_EXIST;
}
do {
removeFromPosition(i);
i = findFirstIndex(key, i);
} while (i < _size);
return HasReturnvaluesIF::RETURN_OK;
}
/***
* Can be used to check if a certain key is in the map
* @param key Key to be checked
* @return RETURN_OK if the key exists KEY_DOES_NOT_EXIST otherwise
*/
ReturnValue_t exists(key_t key) const;
Iterator find(key_t key) const {
/***
* Used to delete the element in the iterator
*
* The iterator will point to the element before or begin(),
* but never to one element in front of the map.
*
* @warning The iterator needs to be valid and dereferenceable
* @param[in/out] iter Pointer to iterator to the element that needs to be ereased
* @return RETURN_OK if erased, KEY_DOES_NOT_EXIST if the there is no element like this
*/
ReturnValue_t erase(Iterator *iter);
/***
* Used to erase by key
* @param key Key to be erased
* @return RETURN_OK if erased, KEY_DOES_NOT_EXIST if the there is no element like this
*/
ReturnValue_t erase(key_t key);
/***
* Find returns the first appearance of the key
*
* If the key does not exist, it points to end()
*
* @param key Key to search for
* @return Iterator pointing to the first entry of key
*/
Iterator find(key_t key) const{
ReturnValue_t result = exists(key);
if (result != HasReturnvaluesIF::RETURN_OK) {
return end();
}
return Iterator(&theMap[findFirstIndex(key)]);
};
/***
* Finds first entry of the given key and returns a
* pointer to the value
*
* @param key Key to search for
* @param value Found value
* @return RETURN_OK if it points to the value,
* KEY_DOES_NOT_EXIST if the key is not in the map
*/
ReturnValue_t find(key_t key, T **value) const;
friend bool operator==(const typename FixedOrderedMultimap::Iterator& lhs,
const typename FixedOrderedMultimap::Iterator& rhs) {
return (lhs.value == rhs.value);
}
ReturnValue_t find(key_t key, T **value) const {
ReturnValue_t result = exists(key);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
*value = &theMap[findFirstIndex(key)].second;
return HasReturnvaluesIF::RETURN_OK;
friend bool operator!=(const typename FixedOrderedMultimap::Iterator& lhs,
const typename FixedOrderedMultimap::Iterator& rhs) {
return not (lhs.value == rhs.value);
}
void clear() {
_size = 0;
}
private:
typedef KEY_COMPARE compare;
compare myComp;
ArrayList<std::pair<key_t, T>, size_t> theMap;
size_t _size;
uint32_t maxSize() const {
return theMap.maxSize();
}
size_t findFirstIndex(key_t key, size_t startAt = 0) const;
size_t findNicePlace(key_t key) const;
void removeFromPosition(size_t position);
};
#endif /* FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_H_ */
#include "FixedOrderedMultimap.tpp"
#endif /* FSFW_CONTAINER_FIXEDORDEREDMULTIMAP_H_ */

109
container/FixedOrderedMultimap.tpp Normal file
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@ -0,0 +1,109 @@
#ifndef FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_TPP_
#define FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_TPP_
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::insert(key_t key, T value, Iterator *storedValue) {
if (_size == theMap.maxSize()) {
return MAP_FULL;
}
size_t position = findNicePlace(key);
memmove(static_cast<void*>(&theMap[position + 1]),static_cast<void*>(&theMap[position]),
(_size - position) * sizeof(std::pair<key_t,T>));
theMap[position].first = key;
theMap[position].second = value;
++_size;
if (storedValue != nullptr) {
*storedValue = Iterator(&theMap[position]);
}
return HasReturnvaluesIF::RETURN_OK;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::insert(std::pair<key_t, T> pair) {
return insert(pair.first, pair.second);
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::exists(key_t key) const {
ReturnValue_t result = KEY_DOES_NOT_EXIST;
if (findFirstIndex(key) < _size) {
result = HasReturnvaluesIF::RETURN_OK;
}
return result;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::erase(Iterator *iter) {
size_t i;
if ((i = findFirstIndex((*iter).value->first)) >= _size) {
return KEY_DOES_NOT_EXIST;
}
removeFromPosition(i);
if (*iter != begin()) {
(*iter)--;
} else {
*iter = begin();
}
return HasReturnvaluesIF::RETURN_OK;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::erase(key_t key) {
size_t i;
if ((i = findFirstIndex(key)) >= _size) {
return KEY_DOES_NOT_EXIST;
}
do {
removeFromPosition(i);
i = findFirstIndex(key, i);
} while (i < _size);
return HasReturnvaluesIF::RETURN_OK;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline ReturnValue_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::find(key_t key, T **value) const {
ReturnValue_t result = exists(key);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
*value = &theMap[findFirstIndex(key)].second;
return HasReturnvaluesIF::RETURN_OK;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline size_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::findFirstIndex(key_t key, size_t startAt) const {
if (startAt >= _size) {
return startAt + 1;
}
size_t i = startAt;
for (i = startAt; i < _size; ++i) {
if (theMap[i].first == key) {
return i;
}
}
return i;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline size_t FixedOrderedMultimap<key_t, T, KEY_COMPARE>::findNicePlace(key_t key) const {
size_t i = 0;
for (i = 0; i < _size; ++i) {
if (myComp(key, theMap[i].first)) {
return i;
}
}
return i;
}
template<typename key_t, typename T, typename KEY_COMPARE>
inline void FixedOrderedMultimap<key_t, T, KEY_COMPARE>::removeFromPosition(size_t position) {
if (_size <= position) {
return;
}
memmove(static_cast<void*>(&theMap[position]), static_cast<void*>(&theMap[position + 1]),
(_size - position - 1) * sizeof(std::pair<key_t,T>));
--_size;
}
#endif /* FRAMEWORK_CONTAINER_FIXEDORDEREDMULTIMAP_TPP_ */