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AbstractByteBuf.ensureWritable(...) should check if buffer was released

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Motivation:

AbstractByteBuf.ensureWritable(...) should check if buffer was released and if so throw an IllegalReferenceCountException

Modifications:

Ensure we throw in all cases.

Result:

More consistent and correct behaviour
This commit is contained in:
Norman Maurer 2017-07-17 15:44:46 +02:00
parent 96e06aa74d
commit d125adec38
10 changed files with 26 additions and 70 deletions
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29
buffer/src/main/java/io/netty/buffer/AbstractByteBuf.java
View File

@ -266,7 +266,8 @@ public abstract class AbstractByteBuf extends ByteBuf {
return this;
}
private void ensureWritable0(int minWritableBytes) {
final void ensureWritable0(int minWritableBytes) {
ensureAccessible();
if (minWritableBytes <= writableBytes()) {
return;
}
@ -286,6 +287,7 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public int ensureWritable(int minWritableBytes, boolean force) {
ensureAccessible();
if (minWritableBytes < 0) {
throw new IllegalArgumentException(String.format(
"minWritableBytes: %d (expected: >= 0)", minWritableBytes));
@ -668,16 +670,16 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public int setCharSequence(int index, CharSequence sequence, Charset charset) {
if (charset.equals(CharsetUtil.UTF_8)) {
ensureWritable(ByteBufUtil.utf8MaxBytes(sequence));
ensureWritable0(ByteBufUtil.utf8MaxBytes(sequence));
return ByteBufUtil.writeUtf8(this, index, sequence, sequence.length());
}
if (charset.equals(CharsetUtil.US_ASCII) || charset.equals(CharsetUtil.ISO_8859_1)) {
int len = sequence.length();
ensureWritable(len);
ensureWritable0(len);
return ByteBufUtil.writeAscii(this, index, sequence, len);
}
byte[] bytes = sequence.toString().getBytes(charset);
ensureWritable(bytes.length);
ensureWritable0(bytes.length);
setBytes(index, bytes);
return bytes.length;
}
@ -934,7 +936,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeByte(int value) {
ensureAccessible();
ensureWritable0(1);
_setByte(writerIndex++, value);
return this;
@ -942,7 +943,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeShort(int value) {
ensureAccessible();
ensureWritable0(2);
_setShort(writerIndex, value);
writerIndex += 2;
@ -951,7 +951,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeShortLE(int value) {
ensureAccessible();
ensureWritable0(2);
_setShortLE(writerIndex, value);
writerIndex += 2;
@ -960,7 +959,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeMedium(int value) {
ensureAccessible();
ensureWritable0(3);
_setMedium(writerIndex, value);
writerIndex += 3;
@ -969,7 +967,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeMediumLE(int value) {
ensureAccessible();
ensureWritable0(3);
_setMediumLE(writerIndex, value);
writerIndex += 3;
@ -978,7 +975,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeInt(int value) {
ensureAccessible();
ensureWritable0(4);
_setInt(writerIndex, value);
writerIndex += 4;
@ -987,7 +983,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeIntLE(int value) {
ensureAccessible();
ensureWritable0(4);
_setIntLE(writerIndex, value);
writerIndex += 4;
@ -996,7 +991,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeLong(long value) {
ensureAccessible();
ensureWritable0(8);
_setLong(writerIndex, value);
writerIndex += 8;
@ -1005,7 +999,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeLongLE(long value) {
ensureAccessible();
ensureWritable0(8);
_setLongLE(writerIndex, value);
writerIndex += 8;
@ -1032,7 +1025,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeBytes(byte[] src, int srcIndex, int length) {
ensureAccessible();
ensureWritable(length);
setBytes(writerIndex, src, srcIndex, length);
writerIndex += length;
@ -1064,7 +1056,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeBytes(ByteBuf src, int srcIndex, int length) {
ensureAccessible();
ensureWritable(length);
setBytes(writerIndex, src, srcIndex, length);
writerIndex += length;
@ -1073,9 +1064,8 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public ByteBuf writeBytes(ByteBuffer src) {
ensureAccessible();
int length = src.remaining();
ensureWritable(length);
ensureWritable0(length);
setBytes(writerIndex, src);
writerIndex += length;
return this;
@ -1084,7 +1074,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public int writeBytes(InputStream in, int length)
throws IOException {
ensureAccessible();
ensureWritable(length);
int writtenBytes = setBytes(writerIndex, in, length);
if (writtenBytes > 0) {
@ -1095,7 +1084,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public int writeBytes(ScatteringByteChannel in, int length) throws IOException {
ensureAccessible();
ensureWritable(length);
int writtenBytes = setBytes(writerIndex, in, length);
if (writtenBytes > 0) {
@ -1106,7 +1094,6 @@ public abstract class AbstractByteBuf extends ByteBuf {
@Override
public int writeBytes(FileChannel in, long position, int length) throws IOException {
ensureAccessible();
ensureWritable(length);
int writtenBytes = setBytes(writerIndex, in, position, length);
if (writtenBytes > 0) {
@ -1123,7 +1110,7 @@ public abstract class AbstractByteBuf extends ByteBuf {
ensureWritable(length);
int wIndex = writerIndex;
checkIndex(wIndex, length);
checkIndex0(wIndex, length);
int nLong = length >>> 3;
int nBytes = length & 7;

6
buffer/src/main/java/io/netty/buffer/AbstractUnsafeSwappedByteBuf.java
View File

@ -122,7 +122,7 @@ abstract class AbstractUnsafeSwappedByteBuf extends SwappedByteBuf {
@Override
public final ByteBuf writeShort(int value) {
wrapped.ensureWritable(2);
wrapped.ensureWritable0(2);
_setShort(wrapped, wrapped.writerIndex, nativeByteOrder ? (short) value : Short.reverseBytes((short) value));
wrapped.writerIndex += 2;
return this;
@ -130,7 +130,7 @@ abstract class AbstractUnsafeSwappedByteBuf extends SwappedByteBuf {
@Override
public final ByteBuf writeInt(int value) {
wrapped.ensureWritable(4);
wrapped.ensureWritable0(4);
_setInt(wrapped, wrapped.writerIndex, nativeByteOrder ? value : Integer.reverseBytes(value));
wrapped.writerIndex += 4;
return this;
@ -138,7 +138,7 @@ abstract class AbstractUnsafeSwappedByteBuf extends SwappedByteBuf {
@Override
public final ByteBuf writeLong(long value) {
wrapped.ensureWritable(8);
wrapped.ensureWritable0(8);
_setLong(wrapped, wrapped.writerIndex, nativeByteOrder ? value : Long.reverseBytes(value));
wrapped.writerIndex += 8;
return this;

4
buffer/src/main/java/io/netty/buffer/ByteBufUtil.java
View File

@ -482,7 +482,7 @@ public final class ByteBufUtil {
for (;;) {
if (buf instanceof AbstractByteBuf) {
AbstractByteBuf byteBuf = (AbstractByteBuf) buf;
byteBuf.ensureWritable(utf8MaxBytes(seq));
byteBuf.ensureWritable0(utf8MaxBytes(seq));
int written = writeUtf8(byteBuf, byteBuf.writerIndex, seq, seq.length());
byteBuf.writerIndex += written;
return written;
@ -583,7 +583,7 @@ public final class ByteBufUtil {
for (;;) {
if (buf instanceof AbstractByteBuf) {
AbstractByteBuf byteBuf = (AbstractByteBuf) buf;
byteBuf.ensureWritable(len);
byteBuf.ensureWritable0(len);
int written = writeAscii(byteBuf, byteBuf.writerIndex, seq, len);
byteBuf.writerIndex += written;
return written;

5
buffer/src/main/java/io/netty/buffer/PooledUnsafeDirectByteBuf.java
View File

@ -374,7 +374,8 @@ final class PooledUnsafeDirectByteBuf extends PooledByteBuf<ByteBuffer> {
@Override
public ByteBuf setZero(int index, int length) {
UnsafeByteBufUtil.setZero(this, addr(index), index, length);
checkIndex(index, length);
UnsafeByteBufUtil.setZero(addr(index), length);
return this;
}
@ -382,7 +383,7 @@ final class PooledUnsafeDirectByteBuf extends PooledByteBuf<ByteBuffer> {
public ByteBuf writeZero(int length) {
ensureWritable(length);
int wIndex = writerIndex;
setZero(wIndex, length);
UnsafeByteBufUtil.setZero(addr(wIndex), length);
writerIndex = wIndex + length;
return this;
}

10
buffer/src/main/java/io/netty/buffer/PooledUnsafeHeapByteBuf.java
View File

@ -131,8 +131,9 @@ final class PooledUnsafeHeapByteBuf extends PooledHeapByteBuf {
@Override
public ByteBuf setZero(int index, int length) {
if (PlatformDependent.javaVersion() >= 7) {
checkIndex(index, length);
// Only do on java7+ as the needed Unsafe call was only added there.
_setZero(index, length);
UnsafeByteBufUtil.setZero(memory, idx(index), length);
return this;
}
return super.setZero(index, length);
@ -144,18 +145,13 @@ final class PooledUnsafeHeapByteBuf extends PooledHeapByteBuf {
// Only do on java7+ as the needed Unsafe call was only added there.
ensureWritable(length);
int wIndex = writerIndex;
_setZero(wIndex, length);
UnsafeByteBufUtil.setZero(memory, idx(wIndex), length);
writerIndex = wIndex + length;
return this;
}
return super.writeZero(length);
}
private void _setZero(int index, int length) {
checkIndex(index, length);
UnsafeByteBufUtil.setZero(memory, idx(index), length);
}
@Override
@Deprecated
protected SwappedByteBuf newSwappedByteBuf() {

5
buffer/src/main/java/io/netty/buffer/UnpooledUnsafeDirectByteBuf.java
View File

@ -517,7 +517,8 @@ public class UnpooledUnsafeDirectByteBuf extends AbstractReferenceCountedByteBuf
@Override
public ByteBuf setZero(int index, int length) {
UnsafeByteBufUtil.setZero(this, addr(index), index, length);
checkIndex(index, length);
UnsafeByteBufUtil.setZero(addr(index), length);
return this;
}
@ -525,7 +526,7 @@ public class UnpooledUnsafeDirectByteBuf extends AbstractReferenceCountedByteBuf
public ByteBuf writeZero(int length) {
ensureWritable(length);
int wIndex = writerIndex;
setZero(wIndex, length);
UnsafeByteBufUtil.setZero(addr(wIndex), length);
writerIndex = wIndex + length;
return this;
}

10
buffer/src/main/java/io/netty/buffer/UnpooledUnsafeHeapByteBuf.java
View File

@ -245,7 +245,8 @@ class UnpooledUnsafeHeapByteBuf extends UnpooledHeapByteBuf {
public ByteBuf setZero(int index, int length) {
if (PlatformDependent.javaVersion() >= 7) {
// Only do on java7+ as the needed Unsafe call was only added there.
_setZero(index, length);
checkIndex(index, length);
UnsafeByteBufUtil.setZero(array, index, length);
return this;
}
return super.setZero(index, length);
@ -257,18 +258,13 @@ class UnpooledUnsafeHeapByteBuf extends UnpooledHeapByteBuf {
// Only do on java7+ as the needed Unsafe call was only added there.
ensureWritable(length);
int wIndex = writerIndex;
_setZero(wIndex, length);
UnsafeByteBufUtil.setZero(array, wIndex, length);
writerIndex = wIndex + length;
return this;
}
return super.writeZero(length);
}
private void _setZero(int index, int length) {
checkIndex(index, length);
UnsafeByteBufUtil.setZero(array, index, length);
}
@Override
@Deprecated
protected SwappedByteBuf newSwappedByteBuf() {

3
buffer/src/main/java/io/netty/buffer/UnsafeByteBufUtil.java
View File

@ -581,12 +581,11 @@ final class UnsafeByteBufUtil {
}
}
static void setZero(AbstractByteBuf buf, long addr, int index, int length) {
static void setZero(long addr, int length) {
if (length == 0) {
return;
}
buf.checkIndex(index, length);
PlatformDependent.setMemory(addr, length, ZERO);
}

12
buffer/src/test/java/io/netty/buffer/SlicedByteBufTest.java
View File

@ -94,18 +94,6 @@ public class SlicedByteBufTest extends AbstractByteBufTest {
super.testNioBufferExposeOnlyRegion();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testEnsureWritableAfterRelease() {
super.testEnsureWritableAfterRelease();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testWriteZeroAfterRelease() throws IOException {
super.testWriteZeroAfterRelease();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testGetReadOnlyDirectDst() {

12
buffer/src/test/java/io/netty/buffer/WrappedUnpooledUnsafeByteBufTest.java
View File

@ -88,18 +88,6 @@ public class WrappedUnpooledUnsafeByteBufTest extends BigEndianUnsafeDirectByteB
super.testNioBufferExposeOnlyRegion();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testEnsureWritableAfterRelease() {
super.testEnsureWritableAfterRelease();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testWriteZeroAfterRelease() throws IOException {
super.testWriteZeroAfterRelease();
}
@Test(expected = IndexOutOfBoundsException.class)
@Override
public void testGetReadOnlyDirectDst() {