Package uk.ac.manchester.spinnaker.messages.scp

Class SDRAMDeAlloc

java.lang.Object

uk.ac.manchester.spinnaker.messages.sdp.SpinnakerRequest

uk.ac.manchester.spinnaker.messages.scp.SCPRequest<SDRAMDeAlloc.Response>

uk.ac.manchester.spinnaker.messages.scp.SDRAMDeAlloc

All Implemented Interfaces:

SerializableMessage

public class SDRAMDeAlloc
extends SCPRequest<SDRAMDeAlloc.Response>

A request to free space in the SDRAM. The response payload is the number of blocks that were deallocated.

Calls cmd_alloc() (and hence sark_xfree() or sark_xfree_id()) in scamp-cmd.c.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected final class	SDRAMDeAlloc.Response	An SCP response to a request to deallocate SDRAM.

Field Summary

Fields inherited from class uk.ac.manchester.spinnaker.messages.scp.SCPRequest

argument1, argument2, argument3, BOOT_CHIP, BOOT_MONITOR_CORE, data, NO_DATA, scpRequestHeader

Fields inherited from class uk.ac.manchester.spinnaker.messages.sdp.SpinnakerRequest

sdpHeader

Constructor Summary

Constructors

Constructor	Description
SDRAMDeAlloc(HasChipLocation chip, MemoryLocation baseAddress)	Free a block of memory of known size.
SDRAMDeAlloc(HasChipLocation chip, AppID appID)	Free the memory associated with a given application ID.

Method Summary

Modifier and Type	Method	Description
SDRAMDeAlloc.Response	getSCPResponse(ByteBuffer buffer)	Parse the response to this message.

Methods inherited from class uk.ac.manchester.spinnaker.messages.scp.SCPRequest

addToBuffer

Methods inherited from class uk.ac.manchester.spinnaker.messages.sdp.SpinnakerRequest

getMessageData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SDRAMDeAlloc

public SDRAMDeAlloc(HasChipLocation chip,
 AppID appID)

Free the memory associated with a given application ID.

Parameters:

chip - The chip to deallocate on.

appID - The ID of the application.

SDRAMDeAlloc

public SDRAMDeAlloc(HasChipLocation chip,
 MemoryLocation baseAddress)

Free a block of memory of known size.

Parameters:

chip - The chip to deallocate on.

baseAddress - The start address in SDRAM of the block that needs to be deallocated.

Method Details

getSCPResponse

public SDRAMDeAlloc.Response getSCPResponse(ByteBuffer buffer)
                                     throws UnexpectedResponseCodeException,
MemoryAllocationFailedException

Description copied from class: SCPRequest

Parse the response to this message.

Specified by:

getSCPResponse in class SCPRequest<SDRAMDeAlloc.Response>

Parameters:

buffer - The buffer to parse.

Returns:

The message response.

Throws:

UnexpectedResponseCodeException

MemoryAllocationFailedException