edu.rit.mp.buf

Class CharacterItemBuf

java.lang.Object

edu.rit.mp.Buf

edu.rit.mp.CharacterBuf

edu.rit.mp.buf.CharacterItemBuf

public class CharacterItemBuf
extends CharacterBuf

Class CharacterItemBuf provides a buffer for a single character item sent or received using the Message Protocol (MP). While an instance of class CharacterItemBuf may be constructed directly, normally you will use a factory method in class CharacterBuf. See that class for further information.

Field Summary

Fields

Modifier and Type	Field and Description
char	item Character item to be sent or received.

Constructor Summary

Constructors

Constructor and Description
CharacterItemBuf() Construct a new character item buffer.
CharacterItemBuf(char item) Construct a new character item buffer with the given initial value.

Method Summary

Modifier and Type	Method and Description
char	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, char item) Store the given item in this buffer.

Methods inherited from class edu.rit.mp.CharacterBuf

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

Field Detail

item

public char item

Character item to be sent or received.

Constructor Detail

CharacterItemBuf

public CharacterItemBuf()

Construct a new character item buffer.

CharacterItemBuf

public CharacterItemBuf(char item)

Construct a new character item buffer with the given initial value.

Parameters:

item - Initial value of the item field.

Method Detail

get

public char 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 CharacterBuf

Parameters:

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

Returns:

Item at index i.

put

public void put(int i,
                char 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 CharacterBuf

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.