org.apache.tomcat.jni
Class Mmap

java.lang.Object
  org.apache.tomcat.jni.Mmap

public class Mmap
extends java.lang.Object

Mmap

Author:

Mladen Turk

APR_MMAP_READ

public static final int APR_MMAP_READ

MMap opened for reading

See Also:

Constant Field Values

APR_MMAP_WRITE

public static final int APR_MMAP_WRITE

MMap opened for writing

See Also:

Constant Field Values

Mmap

public Mmap()

create

public static long create(long file,
                          long offset,
                          long size,
                          int flag,
                          long pool)
                   throws Error

Create a new mmap'ed file out of an existing APR file.

Parameters:

file - The file turn into an mmap.

offset - The offset into the file to start the data pointer at.

size - The size of the file

flag - bit-wise or of:

 APR_MMAP_READ       MMap opened for reading
 APR_MMAP_WRITE      MMap opened for writing
 

pool - The pool to use when creating the mmap.

Returns:

The newly created mmap'ed file.

Throws:

Error

dup

public static long dup(long mmap,
                       long pool)
                throws Error

Duplicate the specified MMAP.

Parameters:

mmap - The mmap to duplicate.

pool - The pool to use for new_mmap.

Returns:

Duplicated mmap'ed file.

Throws:

Error

delete

public static int delete(long mm)

Remove a mmap'ed.

Parameters:

mm - The mmap'ed file.

offset

public static long offset(long mm,
                          long offset)
                   throws Error

Move the pointer into the mmap'ed file to the specified offset.

Parameters:

mm - The mmap'ed file.

offset - The offset to move to.

Returns:

The pointer to the offset specified.

Throws:

Error