Class HeapSmall

HeapSmall class. Used to alloc and free small memory blocks on the heap.

Inheritance

System.Object

HeapSmall

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Cosmos.Core.Memory

Assembly: Cosmos.Core.dll

Syntax

public static class HeapSmall

Fields

mMaxItemSize

Max item size in the heap.

Declaration

public static uint mMaxItemSize

Field Value

Type	Description
System.UInt32

PrefixItemBytes

Number of prefix bytes for each item. We technically only need 2 but to keep it aligned we have two padding

Declaration

public const uint PrefixItemBytes = 4U

Field Value

Type	Description
System.UInt32

SMT

Size map table

Declaration

public static SMTPage*SMT

Field Value

Type	Description
SMTPage*

Methods

Alloc(UInt16)

Alloc memory block, of a given size.

Declaration

public static byte *Alloc(ushort aSize)

Parameters

Type	Name	Description
System.UInt16	aSize	A size of block to alloc, in bytes.

Returns

Type	Description
System.Byte*	Byte pointer to the start of the block.

Free(Void*)

Free a object

Declaration

public static void Free(void *aPtr)

Parameters

Type	Name	Description
System.Void*	aPtr	A pointer to the start object.

GetAllocatedObjectCount()

Counts how many elements are currently allocated

Declaration

public static int GetAllocatedObjectCount()

Returns

Type	Description
System.Int32

GetRoundedSize(UInt32)

Return the size a certain element will be allocated as

Declaration

public static uint GetRoundedSize(uint aSize)

Parameters

Type	Name	Description
System.UInt32	aSize

Returns

Type	Description
System.UInt32

Init()

Init small heap.

Declaration

public static void Init()

Exceptions

Type	Condition
System.Exception	Thrown on fatal error, contact support.