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Implement org.apache.hadoop.fs.ByteBufferReadable #12

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PerilousApricot opened this issue Apr 16, 2020 · 0 comments
Open

Implement org.apache.hadoop.fs.ByteBufferReadable #12

PerilousApricot opened this issue Apr 16, 2020 · 0 comments

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@PerilousApricot
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If the application provides a direct byte buffer, then the C++ side of the JNI can receive the pointer with GetDirectBufferAddress, which skips an unnecessary copy as the data crosses the C++/Java interface (GetPrimitiveArrayCritical can cause a copy if the array is fragmented on the Java heap)
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