Modifier and Type	Class and Description
private static class	LinuxWatchService.LinuxWatchKey WatchKey implementation
private static class	LinuxWatchService.Poller Background thread to read from inotify

Modifier and Type	Field and Description
private final LinuxWatchService.Poller	poller
private static final Unsafe	unsafe

Access	Constructor and Description
pack-priv	LinuxWatchService(UnixFileSystem fs)

Modifier and Type	Method and Description
private static native void	configureBlocking(int fd, boolean blocking)
private static native int[]	eventOffsets()
private static native int	eventSize()
pack-priv void	implClose() Implements abstract sun.nio.fs.AbstractWatchService.implClose. Closes this watch service.
private static native int	inotifyAddWatch(int fd, long pathAddress, int mask)
private static native int	inotifyInit()
private static native void	inotifyRmWatch(int fd, int wd)
private static native int	poll(int fd1, int fd2)
pack-priv WatchKey	register(Path dir, WatchEvent.Kind<?>[] events, WatchEvent.Modifier... modifiers) Implements abstract sun.nio.fs.AbstractWatchService.register. Register the given object with this watch service
private static native void	socketpair(int[] sv)

poller	back to summary
private final LinuxWatchService.Poller poller

unsafe	back to summary
private static final Unsafe unsafe

LinuxWatchService	back to summary
pack-priv LinuxWatchService(UnixFileSystem fs) throws IOException

Method Detail

configureBlocking	back to summary
private static native void configureBlocking(int fd, boolean blocking) throws UnixException

eventOffsets	back to summary
private static native int[] eventOffsets()

eventSize	back to summary
private static native int eventSize()

implClose	back to summary
pack-priv void implClose() throws IOException Implements abstract sun.nio.fs.AbstractWatchService.implClose. Doc from sun.nio.fs.AbstractWatchService.implClose. Closes this watch service. This method is invoked by the close method to perform the actual work of closing the watch service. Annotations @Override

implClose

back to summary

pack-priv void implClose() throws IOException

Implements abstract sun.nio.fs.AbstractWatchService.implClose.

Doc from sun.nio.fs.AbstractWatchService.implClose.

Closes this watch service. This method is invoked by the close method to perform the actual work of closing the watch service.

Annotations

@Override

inotifyAddWatch	back to summary
private static native int inotifyAddWatch(int fd, long pathAddress, int mask) throws UnixException

inotifyInit	back to summary
private static native int inotifyInit() throws UnixException

inotifyRmWatch	back to summary
private static native void inotifyRmWatch(int fd, int wd) throws UnixException

poll	back to summary
private static native int poll(int fd1, int fd2) throws UnixException

register	back to summary
pack-priv WatchKey register(Path dir, WatchEvent.Kind<?>[] events, WatchEvent.Modifier... modifiers) throws IOException Implements abstract sun.nio.fs.AbstractWatchService.register. Doc from sun.nio.fs.AbstractWatchService.register. Register the given object with this watch service Annotations @Override

back to summary

pack-priv WatchKey register(Path dir, WatchEvent.Kind<?>[] events, WatchEvent.Modifier... modifiers) throws IOException

Implements abstract sun.nio.fs.AbstractWatchService.register.

Doc from sun.nio.fs.AbstractWatchService.register.

Annotations

@Override

socketpair	back to summary
private static native void socketpair(int[] sv) throws UnixException

sun.nio.fs back to summary

private Class LinuxWatchService.LinuxWatchKey

Class Inheritance

extends AbstractWatchKey

java.lang.Object
sun.nio.fs.AbstractWatchKey
sun.nio.fs.LinuxWatchService.LinuxWatchKey

WatchKey implementation

Field Summary

Modifier and Type	Field and Description
private final int	ifd
private volatile int	wd

Inherited from sun.nio.fs.AbstractWatchKey:: MAX_EVENT_LIST_SIZE OVERFLOW_EVENT

Constructor Summary

Access	Constructor and Description
pack-priv	LinuxWatchKey(UnixPath dir, LinuxWatchService watcher, int ifd, int wd)

Method Summary

Modifier and Type	Method and Description
public void	cancel() Implements java.nio.file.WatchKey.cancel. Cancels the registration with the watch service.
pack-priv int	descriptor()
pack-priv void	invalidate(boolean remove)
public boolean	isValid() Implements java.nio.file.WatchKey.isValid. Tells whether or not this watch key is valid.

Inherited from sun.nio.fs.AbstractWatchKey:: pollEvents reset signal signalEvent watchable watcher

Field Detail

ifd	back to summary
private final int ifd

wd	back to summary
private volatile int wd

Constructor Detail

LinuxWatchKey	back to summary
pack-priv LinuxWatchKey(UnixPath dir, LinuxWatchService watcher, int ifd, int wd)

Method Detail

cancel back to summary

cancel	back to summary
public void cancel() Implements java.nio.file.WatchKey.cancel. Doc from java.nio.file.WatchKey.cancel. Cancels the registration with the watch service. Upon return the watch key will be invalid. If the watch key is enqueued, waiting to be retrieved from the watch service, then it will remain in the queue until it is removed. Pending events, if any, remain pending and may be retrieved by invoking the `pollEvents` method after the key is cancelled. If this watch key has already been cancelled then invoking this method has no effect. Once cancelled, a watch key remains forever invalid. Annotations @Override

public void cancel()

Implements java.nio.file.WatchKey.cancel.

Doc from java.nio.file.WatchKey.cancel.

Cancels the registration with the watch service. Upon return the watch key will be invalid. If the watch key is enqueued, waiting to be retrieved from the watch service, then it will remain in the queue until it is removed. Pending events, if any, remain pending and may be retrieved by invoking the pollEvents method after the key is cancelled.

If this watch key has already been cancelled then invoking this method has no effect. Once cancelled, a watch key remains forever invalid.

Annotations

@Override

descriptor	back to summary
pack-priv int descriptor()

invalidate	back to summary
pack-priv void invalidate(boolean remove)

isValid	back to summary
public boolean isValid() Implements java.nio.file.WatchKey.isValid. Doc from java.nio.file.WatchKey.isValid. Tells whether or not this watch key is valid. A watch key is valid upon creation and remains until it is cancelled, or its watch service is closed. Annotations @Override

isValid

back to summary

public boolean isValid()

Implements java.nio.file.WatchKey.isValid.

Doc from java.nio.file.WatchKey.isValid.

Tells whether or not this watch key is valid.

A watch key is valid upon creation and remains until it is cancelled, or its watch service is closed.

Annotations

@Override

sun.nio.fs back to summary

private Class LinuxWatchService.Poller

Class Inheritance

extends AbstractPoller

java.lang.Object
sun.nio.fs.AbstractPoller
sun.nio.fs.LinuxWatchService.Poller

Background thread to read from inotify

Field Summary

Modifier and Type	Field and Description
private final long	address
private static final int	BUFFER_SIZE
private final UnixFileSystem	fs
private final int	ifd
private static final int	IN_ATTRIB
private static final int	IN_CREATE
private static final int	IN_DELETE
private static final int	IN_IGNORED
private static final int	IN_MODIFY
private static final int	IN_MOVED_FROM
private static final int	IN_MOVED_TO
private static final int	IN_Q_OVERFLOW
private static final int	IN_UNMOUNT
private static final int	OFFSETOF_LEN
private static final int	OFFSETOF_MASK
private static final int	OFFSETOF_NAME
private static final int	OFFSETOF_WD
private static final int[]	offsets
private static final int	SIZEOF_INOTIFY_EVENT struct inotify_event { int wd; uint32_t mask; uint32_t len; char name __flexarr; // present if len > 0 } act_t;
private final int[]	socketpair
private final LinuxWatchService	watcher
private final Map<Integer, LinuxWatchService.LinuxWatchKey>	wdToKey

Constructor Summary

Access	Constructor and Description
pack-priv	Poller(UnixFileSystem fs, LinuxWatchService watcher, int ifd, int[] sp)

Method Summary

Modifier and Type	Method and Description
pack-priv void	implCancelKey(WatchKey obj) Implements abstract sun.nio.fs.AbstractPoller.implCancelKey. Executed by poller thread to cancel key
pack-priv void	implCloseAll() Implements abstract sun.nio.fs.AbstractPoller.implCloseAll. Executed by poller thread to shutdown and cancel all keys
pack-priv Object	implRegister(Path obj, Set<? extends WatchEvent.Kind<?>> events, WatchEvent.Modifier... modifiers) Implements abstract sun.nio.fs.AbstractPoller.implRegister. Executed by poller thread to register directory for changes
private WatchEvent.Kind<?>	maskToEventKind(int mask) map inotify event to WatchEvent.Kind
private void	processEvent(int wd, int mask, final UnixPath name) Process event from inotify
public void	run() Implements java.lang.Runnable.run. Poller main loop
pack-priv void	wakeup() Implements abstract sun.nio.fs.AbstractPoller.wakeup. Wakeup poller thread so that it can service pending requests

Inherited from sun.nio.fs.AbstractPoller:: cancel close processRequests register start

Field Detail

address	back to summary
private final long address

BUFFER_SIZE	back to summary
private static final int BUFFER_SIZE

fs	back to summary
private final UnixFileSystem fs

ifd	back to summary
private final int ifd

IN_ATTRIB	back to summary
private static final int IN_ATTRIB

IN_CREATE	back to summary
private static final int IN_CREATE

IN_DELETE	back to summary
private static final int IN_DELETE

IN_IGNORED	back to summary
private static final int IN_IGNORED

IN_MODIFY	back to summary
private static final int IN_MODIFY

IN_MOVED_FROM	back to summary
private static final int IN_MOVED_FROM

IN_MOVED_TO	back to summary
private static final int IN_MOVED_TO

IN_Q_OVERFLOW	back to summary
private static final int IN_Q_OVERFLOW

IN_UNMOUNT	back to summary
private static final int IN_UNMOUNT

OFFSETOF_LEN	back to summary
private static final int OFFSETOF_LEN

OFFSETOF_MASK	back to summary
private static final int OFFSETOF_MASK

OFFSETOF_NAME	back to summary
private static final int OFFSETOF_NAME

OFFSETOF_WD	back to summary
private static final int OFFSETOF_WD

offsets	back to summary
private static final int[] offsets

SIZEOF_INOTIFY_EVENT	back to summary
private static final int SIZEOF_INOTIFY_EVENT struct inotify_event { int wd; uint32_t mask; uint32_t len; char name __flexarr; // present if len > 0 } act_t;