Urho3D::IndexAllocator< T > Class Template Reference

Utility to assign unique non-zero IDs to objects. Thread-safe. More...

#include <Urho3D/Container/IndexAllocator.h>

Public Types
using	MutexType = T

Public Member Functions
unsigned	GetNextFreeIndex () const
	Return upper bound of allocated indices.
unsigned	GetSize () const
	Return number of currently allocated indices.
unsigned	Allocate ()
	Allocate index.
void	Release (unsigned index)
	Release index. Index should be previously returned from Allocate and not released yet.
void	Shrink ()
	Shrink collection to minimum possible size preserving currently allocated indices.
void	Clear ()
	Reset to default state.

Private Attributes
MutexType	mutex_
	Mutex that protects list and index.
std::atomic_uint32_t	nextIndex_ { 1 }
	Next unused index.
ea::vector< unsigned >	unusedIndices_
	Unused indices.

Detailed Description

template<class T = DummyMutex>
class Urho3D::IndexAllocator< T >

Utility to assign unique non-zero IDs to objects. Thread-safe.

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The documentation for this class was generated from the following file:

• Urho3D/Container/IndexAllocator.h