edu.rit.mp.buf

Class SharedUnsigned8BitIntegerBuf

java.lang.Object

edu.rit.mp.Buf

edu.rit.mp.Unsigned8BitIntegerBuf

edu.rit.mp.buf.SharedUnsigned8BitIntegerBuf

public class SharedUnsigned8BitIntegerBuf
extends Unsigned8BitIntegerBuf

Class SharedUnsigned8BitIntegerBuf provides a buffer for a single unsigned 8-bit integer item sent or received using the Message Protocol (MP). While an instance of class SharedUnsigned8BitIntegerBuf may be constructed directly, normally you will use a factory method in class Unsigned8BitIntegerBuf. See that class for further information.

Constructor Summary

Constructors

Constructor and Description
SharedUnsigned8BitIntegerBuf(SharedInteger item) Construct a new shared unsigned 8-bit integer buffer.

Method Summary

Modifier and Type	Method and Description
int	get(int i) Obtain the given item from this buffer.
Buf	getReductionBuf(Op op) Create a buffer for performing parallel reduction using the given binary operation.
void	put(int i, int item) Store the given item in this buffer.

Methods inherited from class edu.rit.mp.Unsigned8BitIntegerBuf

buffer, buffer, buffer, buffer, buffer, buffer, colSliceBuffer, colSliceBuffers, copy, emptyBuffer, fill, getTemporaryBuf, patchBuffer, patchBuffers, rowSliceBuffer, rowSliceBuffers, sliceBuffer, sliceBuffer, sliceBuffers, sliceBuffers

Methods inherited from class edu.rit.mp.Buf

length

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedUnsigned8BitIntegerBuf

public SharedUnsigned8BitIntegerBuf(SharedInteger item)

Construct a new shared unsigned 8-bit integer buffer.

Parameters:

item - SharedInteger object that wraps the item.

Method Detail

get

public int get(int i)

Obtain the given item from this buffer.

The get() method must not block the calling thread; if it does, all message I/O in MP will be blocked.

Specified by:

get in class Unsigned8BitIntegerBuf

Parameters:

i - Item index in the range 0 .. length()-1.

Returns:

Item at index i.

put

public void put(int i,
                int item)

Store the given item in this buffer.

The put() method must not block the calling thread; if it does, all message I/O in MP will be blocked.

Specified by:

put in class Unsigned8BitIntegerBuf

Parameters:

i - Item index in the range 0 .. length()-1.

item - Item to be stored at index i.

getReductionBuf

public Buf getReductionBuf(Op op)

Create a buffer for performing parallel reduction using the given binary operation. The results of the reduction are placed into this buffer.

Specified by:

getReductionBuf in class Buf

Parameters:

op - Binary operation.

Throws:

java.lang.ClassCastException - (unchecked exception) Thrown if this buffer's element data type and the given binary operation's argument data type are not the same.