- Enclosing class:
Channels
readWriteSelectableChannel
.- Since:
- 11
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Method Summary
Modifier and TypeMethodDescriptionvoid
Closes a selectable channel.void
Release the file descriptor and any resources for a selectable channel that closed while registered with one or moreSelector
s.
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Method Details
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implCloseChannel
Closes a selectable channel.This method is invoked by the channel's close method in order to perform the actual work of closing the channel. This method is only invoked if the channel has not yet been closed, and it is never invoked more than once by the channel's close implementation.
An implementation of this method must arrange for any other thread that is blocked in an I/O operation upon the channel to return immediately, either by throwing an exception or by returning normally. If the channel is
registered
with one or moreSelector
s then the file descriptor should not be released until theimplReleaseChannel
method is invoked.- Parameters:
sc
- The selectable channel- Throws:
IOException
- If an I/O error occurs while closing the file descriptor- See Also:
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implReleaseChannel
Release the file descriptor and any resources for a selectable channel that closed while registered with one or moreSelector
s.This method is for cases where a channel is closed when
registered
with one or moreSelector
s. A channel may remain registered for some time after it is closed. This method is invoked when the channel is eventually deregistered from the lastSelector
that it was registered with. It is invoked at most once.- API Note:
- This method is invoked while synchronized on the selector and its selected-key set. Great care must be taken to avoid deadlocks with other threads that also synchronize on these objects.
- Parameters:
sc
- The closed selectable channel- Throws:
IOException
- If an I/O error occurs- See Also:
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