System Memory Manager

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Detailed Description

This module contains routines to manage heaps of memory.

Typedefs
typedef int	SceKernelSysMemAlloc_t
Enumerations
enum	PspSysMemBlockTypes { PSP_SMEM_Low = 0, PSP_SMEM_High, PSP_SMEM_Addr }
	Specifies the type of allocation used for memory blocks. More...
Functions
SceUID	sceKernelAllocPartitionMemory (SceUID partitionid, const char *name, int type, SceSize size, void *addr)
	Allocate a memory block from a memory partition.
int	sceKernelFreePartitionMemory (SceUID blockid)
	Free a memory block allocated with sceKernelAllocPartitionMemory.
void *	sceKernelGetBlockHeadAddr (SceUID blockid)
	Get the address of a memory block.
SceSize	sceKernelTotalFreeMemSize (void)
	Get the total amount of free memory.
SceSize	sceKernelMaxFreeMemSize (void)
	Get the size of the largest free memory block.
int	sceKernelDevkitVersion (void)
	Get the firmware version.

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Typedef Documentation

typedef int SceKernelSysMemAlloc_t

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Enumeration Type Documentation

enum PspSysMemBlockTypes

Specifies the type of allocation used for memory blocks.

Enumerator:

PSP_SMEM_Low	Allocate from the lowest available address.
PSP_SMEM_High	Allocate from the highest available address.
PSP_SMEM_Addr	Allocate from the specified address.

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Function Documentation

SceUID sceKernelAllocPartitionMemory	(	SceUID	partitionid,
		const char *	name,
		int	type,
		SceSize	size,
		void *	addr
	)

Allocate a memory block from a memory partition.

Parameters:

	partitionid	- The UID of the partition to allocate from.
	name	- Name assigned to the new block.
	type	- Specifies how the block is allocated within the partition. One of PspSysMemBlockTypes.
	size	- Size of the memory block, in bytes.
	addr	- If type is PSP_SMEM_Addr, then addr specifies the lowest address allocate the block from.

Returns:

The UID of the new block, or if less than 0 an error.

int sceKernelDevkitVersion

(

void

)

Get the firmware version.

Returns:

The firmware version. 0x01000300 on v1.00 unit, 0x01050001 on v1.50 unit, 0x01050100 on v1.51 unit, 0x01050200 on v1.52 unit, 0x02000010 on v2.00/v2.01 unit, 0x02050010 on v2.50 unit, 0x02060010 on v2.60 unit, 0x02070010 on v2.70 unit, 0x02070110 on v2.71 unit.

int sceKernelFreePartitionMemory

(

SceUID

blockid

)

Free a memory block allocated with sceKernelAllocPartitionMemory.

Parameters:

blockid

- UID of the block to free.

Returns:

? on success, less than 0 on error.

void* sceKernelGetBlockHeadAddr

(

SceUID

blockid

)

Get the address of a memory block.

Parameters:

blockid

- UID of the memory block.

Returns:

The lowest address belonging to the memory block.

SceSize sceKernelMaxFreeMemSize

(

void

)

Get the size of the largest free memory block.

Returns:

The size of the largest free memory block, in bytes.

SceSize sceKernelTotalFreeMemSize

(

void

)

Get the total amount of free memory.

Returns:

The total amount of free memory, in bytes.

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