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Merge pull request 'ArrayList and FixedMap improvements' (#218) from KSat/fsfw:mueller/ArrayList into master

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Reviewed-on: fsfw/fsfw#218
This commit is contained in:
Steffen Gaisser 2020-10-01 12:31:24 +02:00
commit 1f994d9933
2 changed files with 108 additions and 78 deletions
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147
container/ArrayList.h
View File

@ -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
View File

@ -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;
}