org.apache.lucene.store
Class NativePosixUtil

java.lang.Object
  org.apache.lucene.store.NativePosixUtil

public final class NativePosixUtil
extends Object

Field Summary

static int	DONTNEED
static int	NOREUSE
static int	NORMAL
static int	RANDOM
static int	SEQUENTIAL
static int	WILLNEED

Constructor Summary

NativePosixUtil()

Method Summary

static void	advise(FileDescriptor fd, long offset, long len, int advise)
static int	madvise(ByteBuffer buf, int advise)
static FileDescriptor	open_direct(String filename, boolean read)
static int	posix_madvise(ByteBuffer buf, int advise)
static long	pread(FileDescriptor fd, long pos, ByteBuffer byteBuf)

Methods inherited from class java.lang.Object

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

Field Detail

NORMAL

public static final int NORMAL

See Also:

Constant Field Values

SEQUENTIAL

public static final int SEQUENTIAL

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Constant Field Values

RANDOM

public static final int RANDOM

See Also:

Constant Field Values

WILLNEED

public static final int WILLNEED

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Constant Field Values

DONTNEED

public static final int DONTNEED

See Also:

Constant Field Values

NOREUSE

public static final int NOREUSE

See Also:

Constant Field Values

Constructor Detail

NativePosixUtil

public NativePosixUtil()

Method Detail

posix_madvise

public static int posix_madvise(ByteBuffer buf,
                                int advise)
                         throws IOException

Throws:

IOException

madvise

public static int madvise(ByteBuffer buf,
                          int advise)
                   throws IOException

Throws:

IOException

open_direct

public static FileDescriptor open_direct(String filename,
                                         boolean read)
                                  throws IOException

Throws:

IOException

pread

public static long pread(FileDescriptor fd,
                         long pos,
                         ByteBuffer byteBuf)
                  throws IOException

Throws:

IOException

advise

public static void advise(FileDescriptor fd,
                          long offset,
                          long len,
                          int advise)
                   throws IOException

Throws:

IOException