Top Fields Constructors Methods

sun.nio.ch

pack-priv abstract Class FileDispatcher

Class Inheritance

extends NativeDispatcher

Known Direct Subclasses

sun.nio.ch.UnixFileDispatcherImpl

Imports

java.io.FileDescriptor, .IOException, java.nio.channels.SelectableChannel

Field Summary

Modifier and Type	Field and Description
public static final int	INTERRUPTED
public static final int	LOCKED
public static final int	NO_LOCK
public static final int	RET_EX_LOCK

Constructor Summary

Access	Constructor and Description
pack-priv	FileDispatcher()

Method Summary

Modifier and Type	Method and Description
pack-priv abstract long	allocationGranularity()
pack-priv abstract boolean	canTransferToDirectly(SelectableChannel sc)
pack-priv abstract boolean	canTransferToFromOverlappedMap()
pack-priv abstract FileDescriptor	duplicateForMapping(FileDescriptor fd) Returns a dup of fd if a file descriptor is required for memory-mapping operations, otherwise returns an invalid FileDescriptor (meaning a newly allocated FileDescriptor)
pack-priv abstract int	force(FileDescriptor fd, boolean metaData)
pack-priv abstract int	lock(FileDescriptor fd, boolean blocking, long pos, long size, boolean shared)
pack-priv abstract long	map(FileDescriptor fd, int prot, long position, long length, boolean isSync)
pack-priv abstract int	maxDirectTransferSize()
pack-priv abstract void	release(FileDescriptor fd, long pos, long size)
pack-priv abstract long	seek(FileDescriptor fd, long offset) Sets or reports this file's position If offset is -1, the current position is returned otherwise the position is set to offset.
pack-priv abstract int	setDirectIO(FileDescriptor fd, String path)
pack-priv abstract long	size(FileDescriptor fd)
pack-priv abstract long	transferFrom(FileDescriptor src, FileDescriptor dst, long position, long count, boolean append)
pack-priv abstract long	transferTo(FileDescriptor src, long position, long count, FileDescriptor dst, boolean append)
pack-priv abstract boolean	transferToDirectlyNeedsPositionLock()
pack-priv abstract int	truncate(FileDescriptor fd, long size)
pack-priv abstract int	unmap(long address, long length)

Inherited from sun.nio.ch.NativeDispatcher:: close dup needsPositionLock pread preClose pwrite read readv write writev

Field Detail

INTERRUPTED	back to summary
public static final int INTERRUPTED

LOCKED	back to summary
public static final int LOCKED

NO_LOCK	back to summary
public static final int NO_LOCK

RET_EX_LOCK	back to summary
public static final int RET_EX_LOCK

Constructor Detail

FileDispatcher	back to summary
pack-priv FileDispatcher()

Method Detail

allocationGranularity	back to summary
pack-priv abstract long allocationGranularity()

canTransferToDirectly	back to summary
pack-priv abstract boolean canTransferToDirectly(SelectableChannel sc)

canTransferToFromOverlappedMap	back to summary
pack-priv abstract boolean canTransferToFromOverlappedMap()

duplicateForMapping	back to summary
pack-priv abstract FileDescriptor duplicateForMapping(FileDescriptor fd) throws IOException Returns a dup of fd if a file descriptor is required for memory-mapping operations, otherwise returns an invalid FileDescriptor (meaning a newly allocated FileDescriptor)

force	back to summary
pack-priv abstract int force(FileDescriptor fd, boolean metaData) throws IOException

lock	back to summary
pack-priv abstract int lock(FileDescriptor fd, boolean blocking, long pos, long size, boolean shared) throws IOException

map	back to summary
pack-priv abstract long map(FileDescriptor fd, int prot, long position, long length, boolean isSync) throws IOException

maxDirectTransferSize	back to summary
pack-priv abstract int maxDirectTransferSize()

release	back to summary
pack-priv abstract void release(FileDescriptor fd, long pos, long size) throws IOException

seek	back to summary
pack-priv abstract long seek(FileDescriptor fd, long offset) throws IOException Sets or reports this file's position If offset is -1, the current position is returned otherwise the position is set to offset.

setDirectIO	back to summary
pack-priv abstract int setDirectIO(FileDescriptor fd, String path)

size	back to summary
pack-priv abstract long size(FileDescriptor fd) throws IOException

transferFrom	back to summary
pack-priv abstract long transferFrom(FileDescriptor src, FileDescriptor dst, long position, long count, boolean append)

transferTo	back to summary
pack-priv abstract long transferTo(FileDescriptor src, long position, long count, FileDescriptor dst, boolean append)

transferToDirectlyNeedsPositionLock	back to summary
pack-priv abstract boolean transferToDirectlyNeedsPositionLock()

truncate	back to summary
pack-priv abstract int truncate(FileDescriptor fd, long size) throws IOException

unmap	back to summary
pack-priv abstract int unmap(long address, long length)