net.openhft.lang.io

Class MappedFile

java.lang.Object

net.openhft.lang.io.MappedFile

public class MappedFile
extends Object

This manages the full life cycle of a file and its mappings.

Constructor Summary

Constructors

Constructor and Description
MappedFile(String basePath, long blockSize)
MappedFile(String basePath, long blockSize, long overlapSize)

Method Summary

Methods

Modifier and Type	Method and Description
MappedMemory	acquire(long index)
MappedMemory	acquire(long index, boolean prefetch)
void	close()
static MappedByteBuffer	getMap(FileChannel fileChannel, long start, int size)
long	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

MappedFile

public MappedFile(String basePath,
          long blockSize)
           throws FileNotFoundException

Throws:

FileNotFoundException

MappedFile

public MappedFile(String basePath,
          long blockSize,
          long overlapSize)
           throws FileNotFoundException

Throws:

FileNotFoundException

Method Detail

getMap

public static MappedByteBuffer getMap(@NotNull
                      FileChannel fileChannel,
                      long start,
                      int size)
                               throws IOException

Throws:

IOException

acquire

public MappedMemory acquire(long index)
                     throws IOException

Throws:

IOException

acquire

public MappedMemory acquire(long index,
                   boolean prefetch)
                     throws IOException

Throws:

IOException

close

public void close()
           throws IOException

Throws:

IOException

size

public long size()