dune-common 2.9.0
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A memory pool of objects. More...
#include <dune/common/poolallocator.hh>
Public Types | |
typedef T | MemberType |
The type of object we allocate memory for. | |
Public Member Functions | |
Pool () | |
Constructor. | |
~Pool () | |
Destructor. | |
void * | allocate () |
Get a new or recycled object. | |
void | free (void *o) |
Free an object. | |
void | print (std::ostream &os) |
Print elements in pool for debugging. | |
Static Public Attributes | |
static constexpr int | unionSize |
The size of a union of Reference and MemberType. | |
static constexpr int | size |
Size requirement. At least one object has to stored. | |
static constexpr int | alignment = std::lcm(alignof(MemberType), alignof(Reference)) |
The alignment that suits both the MemberType and the Reference (i.e. their least common multiple). | |
static constexpr int | alignedSize |
The aligned size of the type. | |
static constexpr int | chunkSize |
The size of each chunk memory chunk. | |
static constexpr int | elements = (chunkSize / alignedSize) |
The number of element each chunk can hold. | |
A memory pool of objects.
The memory for the objects is organized in chunks. Each chunks is capable of holding a specified number of objects. The allocated objects will be properly aligned for fast access. Deallocated objects are cached for reuse to prevent memory fragmentation.
T | The type that is allocated by us. |
s | The size of a memory chunk in bytes. |
typedef T Dune::Pool< T, s >::MemberType |
The type of object we allocate memory for.
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staticconstexpr |
The aligned size of the type.
This size is bigger than sizeof of the type and a multiple of the alignment requirement.
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staticconstexpr |
The alignment that suits both the MemberType and the Reference (i.e. their least common multiple).
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staticconstexpr |
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staticconstexpr |
The number of element each chunk can hold.
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staticconstexpr |
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staticconstexpr |
The size of a union of Reference and MemberType.