Thread-safe dictionary implementation. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument. More...

Inherits System::Collections::Generic::Dictionary< TKey, TValue >.

Public Types
using	ThisType = ConcurrentDictionary< TKey, TValue >
	This type. More...

using	BaseType = System::Collections::Generic::Dictionary< TKey, TValue >
	Implementation type. More...

Public Types inherited from System::Collections::Generic::Dictionary< TKey, TValue >
typedef ICollection< TKey >	KeyCollection
	Collection of keys to extract. More...

typedef ICollection< TValue >	ValueCollection
	Collection of values to extract. More...

typedef std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)>	map_t
	Underlying data type. More...

typedef SharedPtr< Dictionary< TKey, TValue > >	Ptr
	Pointer type. More...

typedef KeyValuePair< TKey, TValue >	KVPair
	Key-value pair type. More...

typedef SharedPtr< IEnumerable< KVPair > >	IEnumerablePtr
	Pointer to enumerable interface. More...

typedef SharedPtr< IEnumerator< KVPair > >	IEnumeratorPtr
	Pointer to enumerator. More...

Public Types inherited from System::Collections::Generic::IDictionary< map_t::key_type, map_t::mapped_type >
typedef ICollection< KeyValuePair< map_t::key_type, map_t::mapped_type > >	BaseType
	Base interface type. More...

typedef KeyValuePair< map_t::key_type, map_t::mapped_type >	KeyValuePairType
	Key value pair type. More...

Public Types inherited from System::Collections::Generic::ICollection< T >
typedef T	ValueType
	Value type name. More...

typedef ICollection< T >	ThisType
	Collection type name. More...

Public Types inherited from System::Collections::Generic::IEnumerable< T >
typedef IEnumerator< T >	IEnumeratorType
	Enumerator type. More...

using	ValueType = T

using	iterator = EnumeratorBasedIterator< T, IEnumerator< T > >

using	const_iterator = iterator

Public Types inherited from System::Object
typedef SmartPtr< Object >	ptr
	Alias for smart pointer type. More...

Public Member Functions
virtual void	idx_set (const TKey &key, TValue value) override
	Sets element at specific position. More...

virtual SharedPtr< typename ThisType::KeyCollection >	get_KeysInternal () const override
	Gets wrapper collection to access dictionary keys. More...

virtual void	Add (const TKey &key, const TValue &value) override
	Adds value into dictionary. More...

virtual void	Clear () override
	Deletes all elements in container. More...

virtual void	CopyTo (ArrayPtr< System::Collections::Generic::KeyValuePair< TKey, TValue >> arr, int index) override
	Copies container elements to existing array elements. More...

virtual bool	Remove (const TKey &key) override
	Removes element from container. More...

Public Member Functions inherited from System::Collections::Generic::Dictionary< TKey, TValue >
	Dictionary ()
	Creates empty dictionary. More...

	Dictionary (const map_t &map)
	Copies data from map. More...

	Dictionary (int capacity)
	Overload which corresponds to creating pre-allocated dictionary; does no allocation, actually. More...

	Dictionary (const SharedPtr< IDictionary< TKey, TValue > > &src)
	Copy constructor. More...

	Dictionary (const SharedPtr< IDictionary< TKey, TValue > > &src, const SharedPtr< IEqualityComparer< TKey > > &comparer)
	Copy constructor. More...

	Dictionary (const SharedPtr< IEqualityComparer< TKey > > &comparer)
	Creates empty dictionary. More...

	Dictionary (int capacity, const SharedPtr< IEqualityComparer< TKey > > &comparer)
	Creates empty dictionary. More...

virtual IEnumeratorPtr	GetEnumerator () override
	Creates enumerator object. More...

Public Member Functions inherited from System::Collections::Generic::IDictionary< map_t::key_type, map_t::mapped_type >
virtual SharedPtr< ICollection< map_t::key_type > >	get_Keys () const
	Accesses key collection. More...

virtual SharedPtr< ICollection< map_t::mapped_type > >	get_Values () const
	Accesses value collection. More...

bool	get_IsFixedSize () const
	Checks if collection size is fixed. More...

bool	get_IsSynchronized () const
	Checks if container is thread-safe. More...

virtual void	CopyTo (ArrayPtr< KeyValuePair< map_t::key_type, map_t::mapped_type >> arr, int index) override
	Copies dictionary contents into existing array elements. More...

Public Member Functions inherited from System::Collections::Generic::ICollection< T >
virtual void	Add (const T &item)=0
	Adds element into collection. More...

virtual bool	Contains (const T &item) const =0
	Checks if element is present in collection. More...

virtual bool	Remove (const T &item)=0
	Deletes element from collection. More...

virtual bool	get_IsReadOnly () const
	Checks if collection is read only. More...

virtual void	CopyTo (System::ArrayPtr< T > array, int arrayIndex)=0
	Copies all collection elements to existing array elements. More...

ICollection &	operator= (ICollection &&)
	Move assignment operator. More...

ICollection &	operator= (const ICollection &)
	Move assignment operator. More...

	ICollection ()
	Default constructor. More...

	ICollection (const ICollection &)
	Copy constructor. More...

	ICollection (ICollection &&)
	Move constructor. More...

virtual	~ICollection ()
	Destructor. More...

virtual SharedPtr< Object >	get_SyncRoot () const
	Gets the object the collection is being synchronized through. More...

Public Member Functions inherited from System::Collections::Generic::IEnumerable< T >
T	LINQ_ElementAt (int index)
	Returns the element at a specified index in a sequence. More...

T	LINQ_First ()
	Returns the first element of a sequence. More...

T	LINQ_First (const Func< T, bool > &predicate)
	Returns the first element of a sequence that satisfy the specified condition. More...

T	LINQ_FirstOrDefault ()
	Returns the first element of a sequence, or a default value if the sequence is empty. More...

T	LINQ_FirstOrDefault (std::function< bool(T)> predicate)
	Returns the first element of the sequence that satisfies a condition or a default value if no such element is found. More...

T	LINQ_Last ()
	Returns the last element of a sequence. More...

T	LINQ_LastOrDefault ()
	Returns the last element of a sequence, or a default value if the sequence is empty. More...

SharedPtr< List< T > >	LINQ_ToList ()
	Creates a List<T> from a sequence. More...

int	LINQ_Count ()
	Returns the number of elements in the sequence (calculated via direct counting). More...

int	LINQ_Count (const Func< T, bool > &predicate)
	Returns the number of elements in the sequence that satisfy the specified condition. More...

System::ArrayPtr< T >	LINQ_ToArray ()
	Creates an array from a sequence. More...

bool	LINQ_All (std::function< bool(T)> predicate)
	Determines whether all elements of a sequence satisfy a condition. More...

bool	LINQ_Any ()
	Determines whether a sequence contains any elements. More...

bool	LINQ_Any (std::function< bool(T)> predicate)
	Determines whether any element of a sequence exists or satisfies a condition. More...

SharedPtr< IEnumerable< T > >	LINQ_Where (std::function< bool(T)> predicate)
	Filters a sequence based on the specified predicate. More...

bool	LINQ_Contains (T value)
	Determines if a sequence contains a specified value. More...

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Cast ()
	Casts the elements to the specified type. More...

template<typename Key >
SharedPtr< IEnumerable< T > >	LINQ_OrderBy (const Func< T, Key > &keySelector)
	Sorts the elements of a sequence in ascending order according to the key values selected by keySelector. More...

template<typename Key >
SharedPtr< IEnumerable< T > >	LINQ_OrderByDescending (const Func< T, Key > &keySelector)
	Sorts the elements of a sequence in descending order according to the key values selected by keySelector. More...

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_OfType ()
	Filters the elements of the sequence based on the specified type. More...

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, ResultType > &selector)
	Transforms elements of a sequence. More...

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, int32_t, ResultType > &selector)
	Transforms each element of a sequence into a new form by incorporating the element's index. More...

SharedPtr< IEnumerable< T > >	LINQ_Concat (SharedPtr< IEnumerable< T >> sequence)
	Concatenates two sequences. More...

template<typename Key >
System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, T > > > >	LINQ_GroupBy (System::Func< T, Key > keyPredicate)
	Groups the elements of a sequence. More...

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_SelectMany (const Func< T, SharedPtr< IEnumerable< ResultType >>> &selector)
	Projects each element of a sequence and combines the resulting sequences into one sequence. More...

iterator	begin () noexcept
	Gets iterator pointing to the first element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...

iterator	end () noexcept
	Gets iterator pointing right after the last element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...

const_iterator	begin () const noexcept
	Gets iterator pointing to the first element (if any) of the const-qualified instance of the collection. More...

const_iterator	end () const noexcept
	Gets iterator pointing right after the last element (if any) of the const-qualified instance of the collection. More...

const_iterator	cbegin () const noexcept
	Gets iterator pointing to the first const-qualified element (if any) of the collection. More...

const_iterator	cend () const noexcept
	Gets iterator pointing right after the last const-qualified element (if any) of the collection. More...

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Cast ()

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_OfType ()

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, Result > &selector)

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, int32_t, Result > &selector)

template<typename Key >
SharedPtr< IEnumerable< Source > >	LINQ_OrderBy (const Func< Source, Key > &keySelector)

template<typename Key >
SharedPtr< IEnumerable< Source > >	LINQ_OrderByDescending (const Func< Source, Key > &keySelector)

template<typename Key >
SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Source > > > >	LINQ_GroupBy (System::Func< Source, Key > keyPredicate)

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_SelectMany (const Func< Source, SharedPtr< IEnumerable< Result >>> &selector)

Public Member Functions inherited from System::Object
	Object ()
	Creates object. Initializes all internal data structures. More...

virtual	~Object ()
	Destroys object. Frees all internal data structures. More...

	Object (Object const &x)
	Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object &	operator= (Object const &x)
	Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object *	SharedRefAdded ()
	Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	SharedRefRemovedSafe ()
	Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	RemovedSharedRefs (int count)
	Decreases shared reference count by specified value. More...

Detail::SmartPtrCounter *	WeakRefAdded ()
	Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

void	WeakRefRemoved ()
	Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

Detail::SmartPtrCounter *	GetCounter ()
	Gets reference counter data structure associated with the object. More...

int	SharedCount () const
	Gets current value of shared reference counter. More...

void	Lock ()
	Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...

void	Unlock ()
	Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...

virtual bool	Equals (ptr obj)
	Compares objects using C# Object.Equals semantics. More...

virtual int32_t	GetHashCode () const
	Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...

virtual String	ToString () const
	Analog of C# Object.ToString() method. Enables converting custom objects to string. More...

virtual ptr	MemberwiseClone () const
	Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...

virtual const TypeInfo &	GetType () const
	Gets actual type of object. Analog of C# System.Object.GetType() call. More...

virtual bool	Is (const TypeInfo &targetType) const
	Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...

virtual void	SetTemplateWeakPtr (uint32_t argument)
	Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...

virtual bool	FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
	For internal purposes only. More...

template<>
bool	ReferenceEquals (String const &str, std::nullptr_t)
	Specialization of Object::ReferenceEquals for case of string and nullptr. More...

template<>
bool	ReferenceEquals (String const &str1, String const &str2)
	Specialization of Object::ReferenceEquals for case of strings. More...

Protected Member Functions
	~ConcurrentDictionary () override
	Destructor. More...

virtual SharedPtr< typename ThisType::ValueCollection >	get_ValuesInternal () const override
	Gets wrapper collection to access dictionary values. More...

Protected Member Functions inherited from System::Collections::Generic::Dictionary< TKey, TValue >
	~Dictionary () override
	Destructor. More...

SharedPtr< KeyCollection >	get_KeysInternal () const override
	Implementation of internal keys collection accessor. More...

SharedPtr< ValueCollection >	get_ValuesInternal () const override
	Implementation of internal value collection accessor. More...

Protected Member Functions inherited from System::Collections::Generic::IDictionary< map_t::key_type, map_t::mapped_type >
	~IDictionary () override
	Destructor. More...

Protected Member Functions inherited from System::Collections::Generic::IEnumerable< T >
	~IEnumerable () override
	Destructor. More...

Additional Inherited Members
Static Public Member Functions inherited from System::Object
static bool	ReferenceEquals (ptr const &objA, ptr const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, T const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, std::nullptr_t)
	Reference-compares value type object with nullptr. More...

template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares reference type objects in C# style. More...

template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares value type objects in C# style. More...

static const TypeInfo &	Type ()
	Implements C# typeof(System.Object) construct. More...

template<>
bool	Equals (float const &objA, float const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...

template<>
bool	Equals (double const &objA, double const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...

Detailed Description

template<class TKey, class TValue>
class System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >

Thread-safe dictionary implementation. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.

#include <system/collections/concurrent/concurrent_dictionary.h>
#include <system/smart_ptr.h>
 
using namespace System;
using namespace System::Collections::Generic;
 
int main() {
  const int itemsCount = 32;
 
  // Create the ConcurrentDictionary-class instance.
  auto concurrentDictionary = MakeObject<ConcurrentDictionary<int, int>>();
 
  // Fill the concurrent dictionary.
  for (auto i = 0; i < itemsCount; ++i) {
    concurrentDictionary->Add(i, i * i);
  }
 
  Console::WriteLine(concurrentDictionary->idx_get(3));
 
  return 0;
}
/*
This code example produces the following output:
9
*/

Template Parameters

TKey	Key type.
TValue	Value type.

Member Typedef Documentation

◆ BaseType

template<class TKey , class TValue >

using System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::BaseType = System::Collections::Generic::Dictionary<TKey, TValue>

Implementation type.

◆ ThisType

template<class TKey , class TValue >

using System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::ThisType = ConcurrentDictionary<TKey, TValue>

This type.

Constructor & Destructor Documentation

◆ ~ConcurrentDictionary()

template<class TKey , class TValue >

System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::~ConcurrentDictionary ( )

inlineoverrideprotected

Destructor.

Member Function Documentation

◆ Add()

template<class TKey , class TValue >

virtual void System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::Add	(	const TKey &	key,
		const TValue &	value
	)

inlineoverridevirtual

Adds value into dictionary.

Parameters

key	Key to add.
value	Value to add.

◆ Clear()

template<class TKey , class TValue >

virtual void System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::Clear ( )

inlineoverridevirtual

Deletes all elements in container.

Implements System::Collections::Generic::ICollection< T >.

◆ CopyTo()

template<class TKey , class TValue >

virtual void System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::CopyTo	(	ArrayPtr< System::Collections::Generic::KeyValuePair< TKey, TValue >>	arr,
		int	index
	)

inlineoverridevirtual

Copies container elements to existing array elements.

Parameters

arr	Destination array.
index	Index in destination array.

◆ get_KeysInternal()

template<class TKey , class TValue >

virtual SharedPtr<typename ThisType::KeyCollection> System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::get_KeysInternal ( ) const

inlineoverridevirtual

Gets wrapper collection to access dictionary keys.

Returns: Newly created collection to wrap collection's keys.

Reimplemented from System::Collections::Generic::IDictionary< map_t::key_type, map_t::mapped_type >.

◆ get_ValuesInternal()

template<class TKey , class TValue >

virtual SharedPtr<typename ThisType::ValueCollection> System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::get_ValuesInternal ( ) const

inlineoverrideprotectedvirtual

Gets wrapper collection to access dictionary values.

Returns: Newly created collection to wrap collection's values.

Reimplemented from System::Collections::Generic::IDictionary< map_t::key_type, map_t::mapped_type >.

◆ idx_set()

template<class TKey , class TValue >

virtual void System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::idx_set	(	const TKey &	key,
		TValue	value
	)

inlineoverridevirtual

Sets element at specific position.

Parameters

key	Position to set element at.
value	Value to set at specific position.

◆ Remove()

template<class TKey , class TValue >

virtual bool System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >::Remove ( const TKey & key )

inlineoverridevirtual

Removes element from container.

Parameters

key	Key to remove element at.

Returns: True if element was found and removed, false otherwise.

Public Types

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

template<class TKey, class TValue> class System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >

Member Typedef Documentation

◆ BaseType

◆ ThisType

Constructor & Destructor Documentation

◆ ~ConcurrentDictionary()

Member Function Documentation

◆ Add()

◆ Clear()

◆ CopyTo()

◆ get_KeysInternal()

◆ get_ValuesInternal()

◆ idx_set()

◆ Remove()

template<class TKey, class TValue>
class System::Collections::Concurrent::ConcurrentDictionary< TKey, TValue >