OrxBank

Macros
#define	orxBANK_KU32_FLAG_NONE   0x00000000
#define	orxBANK_KU32_FLAG_NOT_EXPANDABLE   0x00000001

Typedefs
typedef struct __orxBANK_t	orxBANK

Functions
orxDLLAPI void *orxFASTCALL	orxBank_Allocate (orxBANK *_pstBank)
orxDLLAPI void *orxFASTCALL	orxBank_AllocateIndexed (orxBANK *_pstBank, orxU32 *_pu32ItemIndex, void **_ppPrevious)
orxDLLAPI void orxFASTCALL	orxBank_Clear (orxBANK *_pstBank)
orxDLLAPI void orxFASTCALL	orxBank_Compact (orxBANK *_pstBank)
orxDLLAPI void orxFASTCALL	orxBank_CompactAll ()
orxDLLAPI orxBANK *orxFASTCALL	orxBank_Create (orxU16 _u16NbElem, orxU32 _u32Size, orxU32 _u32Flags, orxMEMORY_TYPE _eMemType)
orxDLLAPI void orxFASTCALL	orxBank_Delete (orxBANK *_pstBank)
orxDLLAPI void orxFASTCALL	orxBank_Exit ()
orxDLLAPI void orxFASTCALL	orxBank_Free (orxBANK *_pstBank, void *_pCell)
orxDLLAPI void *orxFASTCALL	orxBank_GetAtIndex (const orxBANK *_pstBank, orxU32 _u32Index)
orxDLLAPI orxU32 orxFASTCALL	orxBank_GetCount (const orxBANK *_pstBank)
orxDLLAPI orxU32 orxFASTCALL	orxBank_GetIndex (const orxBANK *_pstBank, const void *_pCell)
orxDLLAPI void *orxFASTCALL	orxBank_GetNext (const orxBANK *_pstBank, const void *_pCell)
orxDLLAPI orxSTATUS orxFASTCALL	orxBank_Init ()
orxDLLAPI void orxFASTCALL	orxBank_Setup ()

Detailed Description

Bank module Bank are used to allocate a portion of memory. Applications can get cell from this memory and use it. If the number of allocations requests become bigger than the bank size, a new segment of memory is automatically allocated. Memory bank can be used to try to reduce memory fragmentation.

Macro Definition Documentation

#define orxBANK_KU32_FLAG_NONE   0x00000000

No flags (default behaviour)

Definition at line 59 of file orxBank.h.

#define orxBANK_KU32_FLAG_NOT_EXPANDABLE   0x00000001

The bank will not be expandable

Definition at line 60 of file orxBank.h.

Typedef Documentation

typedef struct __orxBANK_t orxBANK

Definition at line 56 of file orxBank.h.

Function Documentation

orxDLLAPI void* orxFASTCALL orxBank_Allocate

(

orxBANK *

_pstBank

)

Allocates a new cell from the bank

Parameters

[in]

_pstBank

Pointer on the memory bank to use

Returns

a new cell of memory (orxNULL if no allocation possible)

orxDLLAPI void* orxFASTCALL orxBank_AllocateIndexed	(	orxBANK *	_pstBank,
		orxU32 *	_pu32ItemIndex,
		void **	_ppPrevious
	)

Allocates a new cell from the bank and returns its index

Parameters

[in]	_pstBank	Pointer on the memory bank to use
[out]	_pu32ItemIndex	Will be set with the allocated item index
[out]	_ppPrevious	If non-null, will contain previous neighbor if found

Returns

a new cell of memory (orxNULL if no allocation possible)

orxDLLAPI void orxFASTCALL orxBank_Clear

(

orxBANK *

_pstBank

)

Frees all allocated cell from a bank

Parameters

[in]

_pstBank

Bank of memory to clear

orxDLLAPI void orxFASTCALL orxBank_Compact

(

orxBANK *

_pstBank

)

Compacts a bank by removing all its unused segments

Parameters

[in]

_pstBank

Bank of memory to compact

orxDLLAPI void orxFASTCALL orxBank_CompactAll

(

)

Compacts all banks by removing all their unused segments

orxDLLAPI orxBANK* orxFASTCALL orxBank_Create	(	orxU16	_u16NbElem,
		orxU32	_u32Size,
		orxU32	_u32Flags,
		orxMEMORY_TYPE	_eMemType
	)

Creates a new bank in memory and returns a pointer on it

Parameters

[in]	_u16NbElem	Number of elements per segments
[in]	_u32Size	Size of an element
[in]	_u32Flags	Flags set for this bank
[in]	_eMemType	Memory type where the data will be allocated

Returns

returns a pointer on the memory bank

orxDLLAPI void orxFASTCALL orxBank_Delete

(

orxBANK *

_pstBank

)

Frees a portion of memory allocated with orxMemory_Allocate

Parameters

[in]

_pstBank

Pointer on the memory bank allocated by orx

orxDLLAPI void orxFASTCALL orxBank_Exit

(

)

Exits from the bank module

orxDLLAPI void orxFASTCALL orxBank_Free	(	orxBANK *	_pstBank,
		void *	_pCell
	)

Frees an allocated cell

Parameters

[in]	_pstBank	Bank of memory from where _pCell has been allocated
[in]	_pCell	Pointer on the cell to free

Returns

a new cell of memory (orxNULL if no allocation possible)

orxDLLAPI void* orxFASTCALL orxBank_GetAtIndex	(	const orxBANK *	_pstBank,
		orxU32	_u32Index
	)

Gets the cell at given index, orxNULL is the cell isn't allocated

Parameters

[in]	_pstBank	Concerned memory bank
[in]	_u32Index	Index of the cell to retrieve

Returns

The cell at the given index if allocated, orxNULL otherwise

orxDLLAPI orxU32 orxFASTCALL orxBank_GetCount

(

const orxBANK *

_pstBank

)

Gets the bank allocated cell count

Parameters

[in]

_pstBank

Concerned bank

Returns

Number of allocated cells

orxDLLAPI orxU32 orxFASTCALL orxBank_GetIndex	(	const orxBANK *	_pstBank,
		const void *	_pCell
	)

Gets the cell's index

Parameters

[in]	_pstBank	Concerned memory bank
[in]	_pCell	Cell of which we want the index

Returns

The index of the given cell

orxDLLAPI void* orxFASTCALL orxBank_GetNext	(	const orxBANK *	_pstBank,
		const void *	_pCell
	)

Gets the next cell

Parameters

[in]	_pstBank	Bank of memory from where _pCell has been allocated
[in]	_pCell	Pointer on the current cell of memory

Returns

The next cell. If _pCell is orxNULL, the first cell will be returned. Returns orxNULL when no more cell can be returned.

orxDLLAPI orxSTATUS orxFASTCALL orxBank_Init

(

)

Inits the bank Module

Returns

orxSTATUS_SUCCESS / orxSTATUS_FAILURE

orxDLLAPI void orxFASTCALL orxBank_Setup

(

)

Setups the bank module