andreacavalli/netty-incubator-buffer-api
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Fix JVM crashes and a number of test failures

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Still more test failures left, but getting close now.
This commit is contained in:
Chris Vest 2021-03-27 13:20:07 +01:00
parent c73dd07384
commit 1fe8abecfa
1 changed files with 68 additions and 56 deletions
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124
src/main/java/io/netty/buffer/api/unsafe/UnsafeBuffer.java
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@ -97,6 +97,7 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer readerOffset(int offset) {
checkRead(offset, 0);
roff = offset;
return this;
}
@ -108,6 +109,7 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer writerOffset(int offset) {
checkWrite(offset, 0);
woff = offset;
return this;
}
@ -115,6 +117,9 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer fill(byte value) {
checkSet(0, capacity());
if (rsize == CLOSED_SIZE) {
throw bufferIsClosed();
}
try {
PlatformDependent.setMemory(base, address, rsize, value);
} finally {
@ -142,12 +147,7 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer slice(int offset, int length) {
if (length < 0) {
throw new IllegalArgumentException("Length cannot be negative: " + length + '.');
}
if (!isAccessible()) {
throw new IllegalStateException("This buffer is closed: " + this + '.');
}
checkGet(offset, length);
ArcDrop<UnsafeBuffer> drop = (ArcDrop<UnsafeBuffer>) unsafeGetDrop();
drop.increment();
return new UnsafeBuffer(memory, baseOffset + offset, length, control, drop)
@ -215,10 +215,13 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public void copyInto(int srcPos, Buffer dest, int destPos, int length) {
checkCopyIntoArgs(srcPos, length, destPos, dest.capacity());
if (dest.readOnly()) {
throw bufferIsReadOnly();
}
long nativeAddress = dest.nativeAddress();
try {
if (nativeAddress != 0) {
PlatformDependent.copyMemory(base, address + srcPos, null, nativeAddress, length);
PlatformDependent.copyMemory(base, address + srcPos, null, nativeAddress + destPos, length);
} else if (dest instanceof UnsafeBuffer) {
UnsafeBuffer destUnsafe = (UnsafeBuffer) dest;
PlatformDependent.copyMemory(
@ -345,7 +348,7 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
index -= 7;
try {
long value = PlatformDependent.getLong(baseObj, baseAddress + index);
longValue = BIG_ENDIAN_NATIVE_ORDER? value : Long.reverseBytes(value);
longValue = BIG_ENDIAN_NATIVE_ORDER? Long.reverseBytes(value) : value;
} finally {
Reference.reachabilityFence(memory);
}
@ -828,13 +831,14 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public int readMedium() {
checkRead(roff, 3);
long offset = address + roff;
int value = order() == ByteOrder.BIG_ENDIAN ?
loadByte(roff) << 16 |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) & 0xFF :
loadByte(roff) & 0xFF |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) << 16;
loadByte(offset) << 16 |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) & 0xFF :
loadByte(offset) & 0xFF |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) << 16;
roff += 3;
return value;
}
@ -842,25 +846,27 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public int getMedium(int roff) {
checkGet(roff, 3);
long offset = address + roff;
return order() == ByteOrder.BIG_ENDIAN?
loadByte(roff) << 16 |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) & 0xFF :
loadByte(roff) & 0xFF |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) << 16;
loadByte(offset) << 16 |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) & 0xFF :
loadByte(offset) & 0xFF |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) << 16;
}
@Override
public int readUnsignedMedium() {
checkRead(roff, 3);
long offset = address + roff;
int value = order() == ByteOrder.BIG_ENDIAN?
(loadByte(roff) << 16 |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) & 0xFF) & 0xFFFFFF :
(loadByte(roff) & 0xFF |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) << 16) & 0xFFFFFF;
(loadByte(offset) << 16 |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) & 0xFF) & 0xFFFFFF :
(loadByte(offset) & 0xFF |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) << 16) & 0xFFFFFF;
roff += 3;
return value;
}
@ -868,26 +874,28 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public int getUnsignedMedium(int roff) {
checkGet(roff, 3);
long offset = address + roff;
return order() == ByteOrder.BIG_ENDIAN?
(loadByte(roff) << 16 |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) & 0xFF) & 0xFFFFFF :
(loadByte(roff) & 0xFF |
(loadByte(roff + 1) & 0xFF) << 8 |
loadByte(roff + 2) << 16) & 0xFFFFFF;
(loadByte(offset) << 16 |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) & 0xFF) & 0xFFFFFF :
(loadByte(offset) & 0xFF |
(loadByte(offset + 1) & 0xFF) << 8 |
loadByte(offset + 2) << 16) & 0xFFFFFF;
}
@Override
public Buffer writeMedium(int value) {
checkWrite(woff, 3);
long offset = address + woff;
if (order() == ByteOrder.BIG_ENDIAN) {
storeByte(woff, (byte) (value >> 16));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value & 0xFF));
storeByte(offset, (byte) (value >> 16));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value & 0xFF));
} else {
storeByte(woff, (byte) (value & 0xFF));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value >> 16 & 0xFF));
storeByte(offset, (byte) (value & 0xFF));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value >> 16 & 0xFF));
}
woff += 3;
return this;
@ -896,14 +904,15 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer setMedium(int woff, int value) {
checkSet(woff, 3);
long offset = address + woff;
if (order() == ByteOrder.BIG_ENDIAN) {
storeByte(woff, (byte) (value >> 16));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value & 0xFF));
storeByte(offset, (byte) (value >> 16));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value & 0xFF));
} else {
storeByte(woff, (byte) (value & 0xFF));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value >> 16 & 0xFF));
storeByte(offset, (byte) (value & 0xFF));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value >> 16 & 0xFF));
}
return this;
}
@ -911,14 +920,15 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer writeUnsignedMedium(int value) {
checkWrite(woff, 3);
long offset = address + woff;
if (order() == ByteOrder.BIG_ENDIAN) {
storeByte(woff, (byte) (value >> 16));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value & 0xFF));
storeByte(offset, (byte) (value >> 16));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value & 0xFF));
} else {
storeByte(woff, (byte) (value & 0xFF));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value >> 16 & 0xFF));
storeByte(offset, (byte) (value & 0xFF));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value >> 16 & 0xFF));
}
woff += 3;
return this;
@ -927,14 +937,15 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
@Override
public Buffer setUnsignedMedium(int woff, int value) {
checkSet(woff, 3);
long offset = address + woff;
if (order() == ByteOrder.BIG_ENDIAN) {
storeByte(woff, (byte) (value >> 16));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value & 0xFF));
storeByte(offset, (byte) (value >> 16));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value & 0xFF));
} else {
storeByte(woff, (byte) (value & 0xFF));
storeByte(woff + 1, (byte) (value >> 8 & 0xFF));
storeByte(woff + 2, (byte) (value >> 16 & 0xFF));
storeByte(offset, (byte) (value & 0xFF));
storeByte(offset + 1, (byte) (value >> 8 & 0xFF));
storeByte(offset + 2, (byte) (value >> 16 & 0xFF));
}
return this;
}
@ -1231,6 +1242,7 @@ public class UnsafeBuffer extends RcSupport<Buffer, UnsafeBuffer> implements Buf
void makeInaccessible() {
rsize = CLOSED_SIZE;
wsize = CLOSED_SIZE;
readOnly = false;
}
@Override