| Commit message (Collapse) | Author | Age | Files | Lines |
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reduce test time (was: > 10 min)
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static fields; Change name to avoid testing itself.
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from JunitTracer and use it for all tests.
- Certain performance tests don't make sense utilizing several jenkins unit tests on one machine,
hence singleton test execution is desired.
- JOGL's UITestCase also will derive from this SingletonTestCase
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- Validate active and GC'ed mapped-buffer count
in cleanAllSlices() via close() ..
- Fix missing unmapping last buffer in notifyLengthChangeImpl(),
branch criteria was off by one.
- cleanSlice(..) now also issues cleanBuffer(..) on the GC'ed entry,
hence if WeakReference is still alive, enforce it's release.
- cleanBuffer(..) reverts FLUSH_PRE_HARD -> FLUSH_PRE_SOFT
in case of an error.
- flush() -> flush(boolean metaData) to expose FileChannel.force(metaData).
- Add synchronous mode, flushing/syncing the mapped buffers when
in READ_WRITE mapping mode and issue FileChannel.force() if not READ_ONLY.
Above is implemented via flush()/flushImpl(..) for buffers and FileChannel,
as well as in syncSlice(..) for buffers only.
flush*()/syncSlice() is covered by:
- setLength()
- notifyLengthChange*(..)
- nextSlice()
Always issue flushImpl() in close().
- Windows: Clean all buffers in setLength(),
otherwise Windows will report:
- Windows: Catch MappedByteBuffer.force() IOException
- Optimization of position(..)
position(..) is now standalone to allow issuing flushSlice(..)
before gathering the new mapped buffer.
This shall avoid one extra cache miss.
Hence rename positionImpl(..) -> position2(..).
- All MappedByteBufferOutputStream.write(..) methods
issue syncSlice(..) on the last written current slice
to ensure new 'synchronous' mode is honored.
+++
Unit tests:
- Ensure test files are being deleted
- TestByteBufferCopyStream: Reduced test file size to more sensible values.
-
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to stream copy as well as direct memory mapped ByteBuffer access
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OutputStream impl.
Added MappedByteBufferOutputStream as a child instance of MappedByteBufferInputStream,
since the latter already manages the file's mapped buffer slices.
Current design is:
- MappedByteBufferInputStream (parent)
- MappedByteBufferOutputStream
this is due to InputStream and OutputStream not being interfaces,
but most functionality is provided in one class.
We could redesign both as follows:
- MappedByteBufferIOStream (parent)
- MappedByteBufferInputStream
- MappedByteBufferOutputStream
This might visualize things better .. dunno whether its worth the
extra redirection.
+++
MappedByteBufferInputStream:
- Adding [file] resize support via custom FileResizeOp
- All construction happens via ctors
- Handle refCount, incr. by ctor and getOutputStream(..), decr by close
- Check whether stream is closed already -> IOException
- Simplify / Reuse code
MappedByteBufferOutputStream:
- Adding simple write operations
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