nxm.ice.lib

Class FileIO

java.lang.Object

nxm.ice.lib.FileIO

public class FileIO
extends java.lang.Object

A class to interface to Native function libraries.

Author:

Jeff Schoen

Constructor Summary

Constructors

Constructor and Description
FileIO()

Method Summary

Modifier and Type	Method and Description
static byte[]	allocBuffer(int bytes)
static byte[]	allocBufferN(byte[] buf, int bytes)
static void	fclose(int fd)
static long	fid(int fd)
static int	fopen(java.lang.String fname, int dir)
static int	fopen(java.lang.String fname, int dir, int flags)
static int	fread(int fd, long lbuf, int boff, int bytes)
static int	freadb(int fd, java.lang.Object buf, int boff, int bytes)
static void	freeBuffer(byte[] buf)
static int	freeBufferN(byte[] buf)
static long	fseek(int fd, long offset)
static int	fwrite(int fd, long lbuf, int boff, int bytes)
static int	fwriteb(int fd, java.lang.Object buf, int boff, int bytes)
static boolean	initUse()
static long	malloc(long size) Allocates a block of native memory
static int	mfree(long ptr) Frees a block of native memory

Methods inherited from class java.lang.Object

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

Constructor Detail

FileIO

public FileIO()

Method Detail

initUse

public static boolean initUse()

fopen

public static int fopen(java.lang.String fname,
                        int dir,
                        int flags)

fread

public static int fread(int fd,
                        long lbuf,
                        int boff,
                        int bytes)

fwrite

public static int fwrite(int fd,
                         long lbuf,
                         int boff,
                         int bytes)

freadb

public static int freadb(int fd,
                         java.lang.Object buf,
                         int boff,
                         int bytes)

fwriteb

public static int fwriteb(int fd,
                          java.lang.Object buf,
                          int boff,
                          int bytes)

fseek

public static long fseek(int fd,
                         long offset)

fclose

public static void fclose(int fd)

fid

public static long fid(int fd)

fopen

public static int fopen(java.lang.String fname,
                        int dir)

allocBufferN

public static byte[] allocBufferN(byte[] buf,
                                  int bytes)

freeBufferN

public static int freeBufferN(byte[] buf)

allocBuffer

public static byte[] allocBuffer(int bytes)

freeBuffer

public static void freeBuffer(byte[] buf)

malloc

public static long malloc(long size)

Allocates a block of native memory

Parameters:

size - number of bytes to allocate

Returns:

pointer to the beginning of the allocated block of memory

mfree

public static int mfree(long ptr)

Frees a block of native memory

Parameters:

ptr - pointer to the starting address to free

Returns:

0 for success