Package org.apache.bookkeeper.common.util.nativeio

Class NativeIOImpl

java.lang.Object

org.apache.bookkeeper.common.util.nativeio.NativeIOImpl

All Implemented Interfaces:

NativeIO

public class NativeIOImpl
extends Object
implements NativeIO

NativeIOImpl.

Field Summary

Fields inherited from interface org.apache.bookkeeper.common.util.nativeio.NativeIO

FALLOC_FL_ZERO_RANGE, O_CREAT, O_DIRECT, O_DSYNC, O_RDONLY, O_TRUNC, O_WRONLY, SEEK_END, SEEK_SET

Constructor Summary

Constructors

Constructor	Description
NativeIOImpl()

Method Summary

Modifier and Type	Method	Description
int	close(int fd)
int	fallocate(int fd, int mode, long offset, long len)	fallocate is a linux-only syscall, so callers must handle the possibility that it does not exist.
void	free(long pointer)
int	fsync(int fd)
long	lseek(int fd, long offset, int whence)
int	open(String pathname, int flags, int mode)
int	posix_fadvise(int fd, long offset, long len, int flag)	posix_fadvise is a linux-only syscall, so callers must handle the possibility that it does not exist.
long	posix_memalign(int alignment, int size)
long	pread(int fd, long pointer, long size, long offset)
int	pwrite(int fd, long pointer, int count, long offset)

Methods inherited from class java.lang.Object

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

Constructor Details

NativeIOImpl

public NativeIOImpl()

Method Details

open

public int open(String pathname,
 int flags,
 int mode)
         throws NativeIOException

Specified by:

open in interface NativeIO

Throws:

NativeIOException

fsync

public int fsync(int fd)
          throws NativeIOException

Specified by:

fsync in interface NativeIO

Throws:

NativeIOException

fallocate

public int fallocate(int fd,
 int mode,
 long offset,
 long len)
              throws NativeIOException

Description copied from interface: NativeIO

fallocate is a linux-only syscall, so callers must handle the possibility that it does not exist.

Specified by:

fallocate in interface NativeIO

Throws:

NativeIOException

posix_fadvise

public int posix_fadvise(int fd,
 long offset,
 long len,
 int flag)
                  throws NativeIOException

Description copied from interface: NativeIO

posix_fadvise is a linux-only syscall, so callers must handle the possibility that it does not exist.

Specified by:

posix_fadvise in interface NativeIO

Throws:

NativeIOException

lseek

public long lseek(int fd,
 long offset,
 int whence)
           throws NativeIOException

Specified by:

lseek in interface NativeIO

Throws:

NativeIOException

close

public int close(int fd)
          throws NativeIOException

Specified by:

close in interface NativeIO

Throws:

NativeIOException

pwrite

public int pwrite(int fd,
 long pointer,
 int count,
 long offset)
           throws NativeIOException

Specified by:

pwrite in interface NativeIO

Throws:

NativeIOException

posix_memalign

public long posix_memalign(int alignment,
 int size)
                    throws NativeIOException

Specified by:

posix_memalign in interface NativeIO

Throws:

NativeIOException

free

public void free(long pointer)
          throws NativeIOException

Specified by:

free in interface NativeIO

Throws:

NativeIOException

pread

public long pread(int fd,
 long pointer,
 long size,
 long offset)
           throws NativeIOException

Specified by:

pread in interface NativeIO

Throws:

NativeIOException