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Posted to commits@ozone.apache.org by um...@apache.org on 2022/04/01 17:41:35 UTC
[ozone] branch HDDS-3816-ec updated: HDDS-6478. EC: Fix ISA-l load hadoop native lib UnsatisfiedLinkError (#3218)
This is an automated email from the ASF dual-hosted git repository.
umamahesh pushed a commit to branch HDDS-3816-ec
in repository https://gitbox.apache.org/repos/asf/ozone.git
The following commit(s) were added to refs/heads/HDDS-3816-ec by this push:
new 16c3e99 HDDS-6478. EC: Fix ISA-l load hadoop native lib UnsatisfiedLinkError (#3218)
16c3e99 is described below
commit 16c3e99eae05c74128229e94adbc4671c2bbee65
Author: cchenax <38...@users.noreply.github.com>
AuthorDate: Sat Apr 2 01:41:03 2022 +0800
HDDS-6478. EC: Fix ISA-l load hadoop native lib UnsatisfiedLinkError (#3218)
---
.../rawcoder/HadoopNativeECAccessorUtil.java} | 68 +++++++++-------------
.../io/erasurecode/rawcoder/package-info.java | 29 +++++++++
.../rawcoder/AbstractNativeRawDecoder.java | 8 ---
.../rawcoder/AbstractNativeRawEncoder.java | 8 ---
.../erasurecode/rawcoder/ErasureCodeNative.java | 2 +-
.../erasurecode/rawcoder/NativeRSRawDecoder.java | 45 +++++---------
.../erasurecode/rawcoder/NativeRSRawEncoder.java | 44 +++++---------
.../erasurecode/rawcoder/NativeXORRawDecoder.java | 46 +++++----------
.../erasurecode/rawcoder/NativeXORRawEncoder.java | 42 +++++--------
9 files changed, 120 insertions(+), 172 deletions(-)
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/HadoopNativeECAccessorUtil.java
similarity index 50%
copy from hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java
copy to hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/HadoopNativeECAccessorUtil.java
index d4e43ee..5314db3 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/HadoopNativeECAccessorUtil.java
@@ -15,60 +15,48 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-package org.apache.ozone.erasurecode.rawcoder;
-
-import org.apache.hadoop.hdds.annotation.InterfaceAudience;
-import org.apache.hadoop.hdds.client.ECReplicationConfig;
+package org.apache.hadoop.io.erasurecode.rawcoder;
import java.io.IOException;
import java.nio.ByteBuffer;
+import org.apache.hadoop.hdds.annotation.InterfaceAudience;
+
/**
- * A XOR raw decoder using Intel ISA-L library.
+ * This class is used to access some of the protected API
+ * from hadoop native EC java code.
+ * This is needed until we adapt the native ec code from hadoop.
*/
@InterfaceAudience.Private
-public class NativeXORRawDecoder extends AbstractNativeRawDecoder {
-
- static {
- ErasureCodeNative.checkNativeCodeLoaded();
- }
-
- public NativeXORRawDecoder(ECReplicationConfig ecReplicationConfig) {
- super(ecReplicationConfig);
- decoderLock.writeLock().lock();
- try {
- initImpl(ecReplicationConfig.getData(), ecReplicationConfig.getParity());
- } finally {
- decoderLock.writeLock().unlock();
- }
+public final class HadoopNativeECAccessorUtil {
+ public static void performEncodeImpl(NativeRSRawEncoder encoder,
+ ByteBuffer[] inputs, int[] inputOffsets, int dataLen,
+ ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
+ encoder.performEncodeImpl(inputs, inputOffsets, dataLen, outputs,
+ outputOffsets);
}
- @Override
- protected void performDecodeImpl(
+ public static void performDecodeImpl(NativeRSRawDecoder decoder,
ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
- decodeImpl(inputs, inputOffsets, dataLen, erased, outputs, outputOffsets);
+ decoder.performDecodeImpl(inputs, inputOffsets, dataLen, erased, outputs,
+ outputOffsets);
}
- @Override
- public void release() {
- decoderLock.writeLock().lock();
- try {
- destroyImpl();
- } finally {
- decoderLock.writeLock().unlock();
- }
+ public static void performEncodeImpl(NativeXORRawEncoder encoder,
+ ByteBuffer[] inputs, int[] inputOffsets, int dataLen,
+ ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
+ encoder.performEncodeImpl(inputs, inputOffsets, dataLen, outputs,
+ outputOffsets);
}
- private native void initImpl(int numDataUnits, int numParityUnits);
-
- /**
- * Native implementation of decoding.
- * @throws IOException if the decoder is closed.
- */
- private native void decodeImpl(
+ public static void performDecodeImpl(NativeXORRawDecoder decoder,
ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException;
+ ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
+ decoder.performDecodeImpl(inputs, inputOffsets, dataLen, erased, outputs,
+ outputOffsets);
+ }
- private native void destroyImpl();
-}
\ No newline at end of file
+ private HadoopNativeECAccessorUtil() {
+ }
+}
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/package-info.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/package-info.java
new file mode 100644
index 0000000..42c6705
--- /dev/null
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/package-info.java
@@ -0,0 +1,29 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ *
+ * Erasure coding rawcoder utilities for Apache Ozone.
+ *
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Unstable
+package org.apache.hadoop.io.erasurecode.rawcoder;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
\ No newline at end of file
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawDecoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawDecoder.java
index f940879..537c2bb 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawDecoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawDecoder.java
@@ -41,10 +41,6 @@ abstract class AbstractNativeRawDecoder extends RawErasureDecoder {
protected final ReentrantReadWriteLock decoderLock =
new ReentrantReadWriteLock();
- // To link with the underlying data structure in the native layer.
- // No get/set as only used by native codes.
- private long nativeCoder;
-
AbstractNativeRawDecoder(ECReplicationConfig replicationConfig) {
super(replicationConfig);
}
@@ -54,10 +50,6 @@ abstract class AbstractNativeRawDecoder extends RawErasureDecoder {
throws IOException {
decoderLock.readLock().lock();
try {
- if (nativeCoder == 0) {
- throw new IOException(String.format("%s closed",
- getClass().getSimpleName()));
- }
int[] inputOffsets = new int[decodingState.inputs.length];
int[] outputOffsets = new int[decodingState.outputs.length];
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawEncoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawEncoder.java
index 365e6db..df6f36f 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawEncoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/AbstractNativeRawEncoder.java
@@ -50,10 +50,6 @@ abstract class AbstractNativeRawEncoder extends RawErasureEncoder {
throws IOException {
encoderLock.readLock().lock();
try {
- if (nativeCoder == 0) {
- throw new IOException(String.format("%s closed",
- getClass().getSimpleName()));
- }
int[] inputOffsets = new int[encodingState.inputs.length];
int[] outputOffsets = new int[encodingState.outputs.length];
int dataLen = encodingState.inputs[0].remaining();
@@ -100,8 +96,4 @@ abstract class AbstractNativeRawEncoder extends RawErasureEncoder {
public boolean preferDirectBuffer() {
return true;
}
-
- // To link with the underlying data structure in the native layer.
- // No get/set as only used by native codes.
- private long nativeCoder;
}
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/ErasureCodeNative.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/ErasureCodeNative.java
index 9f2ff61..4fcac54 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/ErasureCodeNative.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/ErasureCodeNative.java
@@ -50,7 +50,7 @@ public final class ErasureCodeNative {
loadLibrary();
} catch (Throwable t) {
problem = "Loading ISA-L failed: " + t.getMessage();
- LOG.warn(problem);
+ LOG.warn(problem, t);
}
LOADING_FAILURE_REASON = problem;
}
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawDecoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawDecoder.java
index 1ab7e1b..98c5e8e 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawDecoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawDecoder.java
@@ -19,6 +19,8 @@ package org.apache.ozone.erasurecode.rawcoder;
import org.apache.hadoop.hdds.annotation.InterfaceAudience;
import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.io.erasurecode.ErasureCoderOptions;
+import org.apache.hadoop.io.erasurecode.rawcoder.HadoopNativeECAccessorUtil;
import java.io.IOException;
import java.nio.ByteBuffer;
@@ -29,48 +31,33 @@ import java.nio.ByteBuffer;
@InterfaceAudience.Private
public class NativeRSRawDecoder extends AbstractNativeRawDecoder {
- static {
- ErasureCodeNative.checkNativeCodeLoaded();
- }
+ private org.apache.hadoop.io.erasurecode.rawcoder.NativeRSRawDecoder
+ hadoopNativeRSRawDecoder;
public NativeRSRawDecoder(ECReplicationConfig ecReplicationConfig) {
super(ecReplicationConfig);
- decoderLock.writeLock().lock();
- try {
- initImpl(ecReplicationConfig.getData(), ecReplicationConfig.getParity());
- } finally {
- decoderLock.writeLock().unlock();
- }
+ hadoopNativeRSRawDecoder =
+ new org.apache.hadoop.io.erasurecode.rawcoder.NativeRSRawDecoder(
+ new ErasureCoderOptions(ecReplicationConfig.getData(),
+ ecReplicationConfig.getParity()));
}
@Override
- protected void performDecodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
- decodeImpl(inputs, inputOffsets, dataLen, erased, outputs, outputOffsets);
+ protected void performDecodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
+ int dataLen, int[] erased, ByteBuffer[] outputs, int[] outputOffsets)
+ throws IOException {
+ HadoopNativeECAccessorUtil
+ .performDecodeImpl(hadoopNativeRSRawDecoder, inputs,
+ inputOffsets, dataLen, erased, outputs, outputOffsets);
}
@Override
public void release() {
- decoderLock.writeLock().lock();
- try {
- destroyImpl();
- } finally {
- decoderLock.writeLock().unlock();
- }
+ hadoopNativeRSRawDecoder.release();
}
@Override
public boolean preferDirectBuffer() {
- return true;
+ return hadoopNativeRSRawDecoder.preferDirectBuffer();
}
-
- private native void initImpl(int numDataUnits, int numParityUnits);
-
- private native void decodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException;
-
- private native void destroyImpl();
-
}
\ No newline at end of file
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawEncoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawEncoder.java
index f03bb19..62db61e 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawEncoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeRSRawEncoder.java
@@ -19,6 +19,8 @@ package org.apache.ozone.erasurecode.rawcoder;
import org.apache.hadoop.hdds.annotation.InterfaceAudience;
import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.io.erasurecode.ErasureCoderOptions;
+import org.apache.hadoop.io.erasurecode.rawcoder.HadoopNativeECAccessorUtil;
import java.io.IOException;
import java.nio.ByteBuffer;
@@ -29,47 +31,33 @@ import java.nio.ByteBuffer;
@InterfaceAudience.Private
public class NativeRSRawEncoder extends AbstractNativeRawEncoder {
- static {
- ErasureCodeNative.checkNativeCodeLoaded();
- }
+ private org.apache.hadoop.io.erasurecode.rawcoder.NativeRSRawEncoder
+ hadoopNativeRSRawEncoder;
public NativeRSRawEncoder(ECReplicationConfig ecReplicationConfig) {
super(ecReplicationConfig);
- encoderLock.writeLock().lock();
- try {
- initImpl(ecReplicationConfig.getData(), ecReplicationConfig.getParity());
- } finally {
- encoderLock.writeLock().unlock();
- }
+ hadoopNativeRSRawEncoder =
+ new org.apache.hadoop.io.erasurecode.rawcoder.NativeRSRawEncoder(
+ new ErasureCoderOptions(ecReplicationConfig.getData(),
+ ecReplicationConfig.getParity()));
}
@Override
- protected void performEncodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
- encodeImpl(inputs, inputOffsets, dataLen, outputs, outputOffsets);
+ protected void performEncodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
+ int dataLen, ByteBuffer[] outputs, int[] outputOffsets)
+ throws IOException {
+ HadoopNativeECAccessorUtil
+ .performEncodeImpl(hadoopNativeRSRawEncoder, inputs,
+ inputOffsets, dataLen, outputs, outputOffsets);
}
@Override
public void release() {
- encoderLock.writeLock().lock();
- try {
- destroyImpl();
- } finally {
- encoderLock.writeLock().unlock();
- }
+ hadoopNativeRSRawEncoder.release();
}
@Override
public boolean preferDirectBuffer() {
- return true;
+ return hadoopNativeRSRawEncoder.preferDirectBuffer();
}
-
- private native void initImpl(int numDataUnits, int numParityUnits);
-
- private native void encodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
- int dataLen, ByteBuffer[] outputs,
- int[] outputOffsets) throws IOException;
-
- private native void destroyImpl();
}
\ No newline at end of file
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java
index d4e43ee..96f8581 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawDecoder.java
@@ -19,6 +19,8 @@ package org.apache.ozone.erasurecode.rawcoder;
import org.apache.hadoop.hdds.annotation.InterfaceAudience;
import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.io.erasurecode.ErasureCoderOptions;
+import org.apache.hadoop.io.erasurecode.rawcoder.HadoopNativeECAccessorUtil;
import java.io.IOException;
import java.nio.ByteBuffer;
@@ -29,46 +31,28 @@ import java.nio.ByteBuffer;
@InterfaceAudience.Private
public class NativeXORRawDecoder extends AbstractNativeRawDecoder {
- static {
- ErasureCodeNative.checkNativeCodeLoaded();
- }
+ private org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawDecoder
+ hadoopNativeXORRawDecoder;
public NativeXORRawDecoder(ECReplicationConfig ecReplicationConfig) {
super(ecReplicationConfig);
- decoderLock.writeLock().lock();
- try {
- initImpl(ecReplicationConfig.getData(), ecReplicationConfig.getParity());
- } finally {
- decoderLock.writeLock().unlock();
- }
+ hadoopNativeXORRawDecoder =
+ new org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawDecoder(
+ new ErasureCoderOptions(ecReplicationConfig.getData(),
+ ecReplicationConfig.getParity()));
}
@Override
- protected void performDecodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
- decodeImpl(inputs, inputOffsets, dataLen, erased, outputs, outputOffsets);
+ protected void performDecodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
+ int dataLen, int[] erased, ByteBuffer[] outputs, int[] outputOffsets)
+ throws IOException {
+ HadoopNativeECAccessorUtil
+ .performDecodeImpl(hadoopNativeXORRawDecoder, inputs,
+ inputOffsets, dataLen, erased, outputs, outputOffsets);
}
@Override
public void release() {
- decoderLock.writeLock().lock();
- try {
- destroyImpl();
- } finally {
- decoderLock.writeLock().unlock();
- }
+ hadoopNativeXORRawDecoder.release();
}
-
- private native void initImpl(int numDataUnits, int numParityUnits);
-
- /**
- * Native implementation of decoding.
- * @throws IOException if the decoder is closed.
- */
- private native void decodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen, int[] erased,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException;
-
- private native void destroyImpl();
}
\ No newline at end of file
diff --git a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawEncoder.java b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawEncoder.java
index 6dde2d5..91be762 100644
--- a/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawEncoder.java
+++ b/hadoop-hdds/erasurecode/src/main/java/org/apache/ozone/erasurecode/rawcoder/NativeXORRawEncoder.java
@@ -19,6 +19,8 @@ package org.apache.ozone.erasurecode.rawcoder;
import org.apache.hadoop.hdds.annotation.InterfaceAudience;
import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.io.erasurecode.ErasureCoderOptions;
+import org.apache.hadoop.io.erasurecode.rawcoder.HadoopNativeECAccessorUtil;
import java.io.IOException;
import java.nio.ByteBuffer;
@@ -29,42 +31,28 @@ import java.nio.ByteBuffer;
@InterfaceAudience.Private
public class NativeXORRawEncoder extends AbstractNativeRawEncoder {
- static {
- ErasureCodeNative.checkNativeCodeLoaded();
- }
+ private org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawEncoder
+ hadoopNativeXORRawEncoder;
public NativeXORRawEncoder(ECReplicationConfig ecReplicationConfig) {
super(ecReplicationConfig);
- encoderLock.writeLock().lock();
- try {
- initImpl(ecReplicationConfig.getData(), ecReplicationConfig.getParity());
- } finally {
- encoderLock.writeLock().unlock();
- }
+ hadoopNativeXORRawEncoder =
+ new org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawEncoder(
+ new ErasureCoderOptions(ecReplicationConfig.getData(),
+ ecReplicationConfig.getParity()));
}
@Override
- protected void performEncodeImpl(
- ByteBuffer[] inputs, int[] inputOffsets, int dataLen,
- ByteBuffer[] outputs, int[] outputOffsets) throws IOException {
- encodeImpl(inputs, inputOffsets, dataLen, outputs, outputOffsets);
+ protected void performEncodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
+ int dataLen, ByteBuffer[] outputs, int[] outputOffsets)
+ throws IOException {
+ HadoopNativeECAccessorUtil
+ .performEncodeImpl(hadoopNativeXORRawEncoder, inputs,
+ inputOffsets, dataLen, outputs, outputOffsets);
}
@Override
public void release() {
- encoderLock.writeLock().lock();
- try {
- destroyImpl();
- } finally {
- encoderLock.writeLock().unlock();
- }
+ hadoopNativeXORRawEncoder.release();
}
-
- private native void initImpl(int numDataUnits, int numParityUnits);
-
- private native void encodeImpl(ByteBuffer[] inputs, int[] inputOffsets,
- int dataLen, ByteBuffer[] outputs,
- int[] outputOffsets) throws IOException;
-
- private native void destroyImpl();
}
\ No newline at end of file
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