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

Interface NativeIO

All Known Implementing Classes:

NativeIOImpl

public interface NativeIO

NativeIO API.

Field Summary

Fields

Modifier and Type	Field	Description
static int	FALLOC_FL_ZERO_RANGE
static int	O_CREAT
static int	O_DIRECT
static int	O_DSYNC
static int	O_RDONLY
static int	O_TRUNC
static int	O_WRONLY
static int	SEEK_END
static int	SEEK_SET

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(java.lang.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)

Field Detail

O_CREAT

static final int O_CREAT

See Also:

Constant Field Values

O_RDONLY

static final int O_RDONLY

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Constant Field Values

O_WRONLY

static final int O_WRONLY

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Constant Field Values

O_TRUNC

static final int O_TRUNC

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Constant Field Values

O_DIRECT

static final int O_DIRECT

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Constant Field Values

O_DSYNC

static final int O_DSYNC

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Constant Field Values

SEEK_SET

static final int SEEK_SET

See Also:

Constant Field Values

SEEK_END

static final int SEEK_END

See Also:

Constant Field Values

FALLOC_FL_ZERO_RANGE

static final int FALLOC_FL_ZERO_RANGE

See Also:

Constant Field Values

Method Detail

open

int open(java.lang.String pathname,
         int flags,
         int mode)
  throws NativeIOException

Throws:

NativeIOException

fsync

int fsync(int fd)
   throws NativeIOException

Throws:

NativeIOException

fallocate

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

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

Throws:

NativeIOException

posix_fadvise

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

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

Throws:

NativeIOException

pwrite

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

Throws:

NativeIOException

posix_memalign

long posix_memalign(int alignment,
                    int size)
             throws NativeIOException

Throws:

NativeIOException

free

void free(long pointer)
   throws NativeIOException

Throws:

NativeIOException

lseek

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

Throws:

NativeIOException

pread

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

Throws:

NativeIOException

close

int close(int fd)
   throws NativeIOException

Throws:

NativeIOException