Package ai.rapids.cudf

Class DeviceMemoryBufferView

java.lang.Object

ai.rapids.cudf.MemoryBuffer

ai.rapids.cudf.BaseDeviceMemoryBuffer

ai.rapids.cudf.DeviceMemoryBufferView

All Implemented Interfaces:

AutoCloseable

public class DeviceMemoryBufferView
extends BaseDeviceMemoryBuffer

This class represents data in some form on the GPU. The memory pointed at by this buffer is not owned by this buffer. So you have to be sure that this buffer does not outlive the buffer that is backing it.

Nested Class Summary

Nested classes/interfaces inherited from class ai.rapids.cudf.MemoryBuffer

MemoryBuffer.EventHandler, MemoryBuffer.MemoryBufferCleaner

Field Summary

Fields inherited from class ai.rapids.cudf.MemoryBuffer

address, cleaner, closed, id, length, refCount

Constructor Summary

Constructors

Constructor	Description
DeviceMemoryBufferView(long address, long lengthInBytes)

Method Summary

Modifier and Type	Method	Description
final DeviceMemoryBufferView	slice(long offset, long len)	At the moment we don't have use for slicing a view.

Methods inherited from class ai.rapids.cudf.BaseDeviceMemoryBuffer

copyFromDeviceBufferAsync, copyFromHostBuffer, copyFromHostBuffer, copyFromHostBuffer, copyFromHostBuffer, copyFromHostBuffer, copyFromHostBufferAsync, copyFromHostBufferAsync, sliceWithCopy

Methods inherited from class ai.rapids.cudf.MemoryBuffer

addressOutOfBoundsCheck, close, copyFromMemoryBuffer, copyFromMemoryBufferAsync, getAddress, getEventHandler, getLength, getRefCount, incRefCount, noWarnLeakExpected, setEventHandler, toString

Methods inherited from class java.lang.Object

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

Constructor Details

DeviceMemoryBufferView

public DeviceMemoryBufferView(long address,
 long lengthInBytes)

Method Details

slice

public final DeviceMemoryBufferView slice(long offset,
 long len)

At the moment we don't have use for slicing a view.

Specified by:

slice in class MemoryBuffer

Parameters:

offset - where to start the slice at.

len - how many bytes to slice

Returns:

a slice of the original buffer that will need to be closed independently