internal T Init <T>(
AbstractByteBuffer unwrapped, IByteBuffer wrapped, int readerIndex, int writerIndex, int maxCapacity)
where T : AbstractPooledDerivedByteBuffer
{
wrapped.Retain(); // Retain up front to ensure the parent is accessible before doing more work.
this.parent = wrapped;
this.rootParent = unwrapped;
try
{
this.SetMaxCapacity(maxCapacity);
this.SetIndex0(readerIndex, writerIndex); // It is assumed the bounds checking is done by the caller.
this.SetReferenceCount(1);
wrapped = null;
return((T)this);
}
finally
{
if (wrapped != null)
{
this.parent = this.rootParent = null;
wrapped.Release();
}
}
}
internal static void SetBytes(AbstractByteBuffer buf, byte *addr, int index, IByteBuffer src, int srcIndex, int length)
{
if (MathUtil.IsOutOfBounds(srcIndex, length, src.Capacity))
{
throw new IndexOutOfRangeException($"srcIndex: {srcIndex}");
}
if (length != 0)
{
if (src.HasMemoryAddress)
{
IntPtr ptr = src.AddressOfPinnedMemory();
if (ptr != IntPtr.Zero)
{
PlatformDependent.CopyMemory((byte *)(ptr + srcIndex), addr, length);
}
else
{
fixed(byte *source = &src.GetPinnableMemoryAddress())
{
PlatformDependent.CopyMemory(source + srcIndex, addr, length);
}
}
}
else if (src.HasArray)
{
PlatformDependent.CopyMemory(src.Array, src.ArrayOffset + srcIndex, addr, length);
}
else
{
src.GetBytes(srcIndex, buf, index, length);
}
}
}
internal static void GetBytes(AbstractByteBuffer buf, byte *addr, int index, IByteBuffer dst, int dstIndex, int length)
{
if (MathUtil.IsOutOfBounds(dstIndex, length, dst.Capacity))
{
throw new IndexOutOfRangeException($"dstIndex: {dstIndex}");
}
if (dst.HasMemoryAddress)
{
IntPtr ptr = dst.AddressOfPinnedMemory();
if (ptr != IntPtr.Zero)
{
PlatformDependent.CopyMemory(addr, (byte *)(ptr + dstIndex), length);
}
else
{
fixed(byte *destination = &dst.GetPinnableMemoryAddress())
{
PlatformDependent.CopyMemory(addr, destination + dstIndex, length);
}
}
}
else if (dst.HasArray)
{
PlatformDependent.CopyMemory(addr, dst.Array, dst.ArrayOffset + dstIndex, length);
}
else
{
dst.SetBytes(dstIndex, buf, index, length);
}
}
static PooledSlicedByteBuffer NewInstance0(AbstractByteBuffer unwrapped, IByteBuffer wrapped, int adjustment, int length)
{
PooledSlicedByteBuffer slice = Recycler.Take();
slice.Init <PooledSlicedByteBuffer>(unwrapped, wrapped, 0, length, length);
slice.DiscardMarks();
slice.adjustment = adjustment;
return(slice);
}
internal static PooledDuplicatedByteBuffer NewInstance(AbstractByteBuffer unwrapped, IByteBuffer wrapped, int readerIndex, int writerIndex)
{
PooledDuplicatedByteBuffer duplicate = Recycler.Take();
duplicate.Init <PooledDuplicatedByteBuffer>(unwrapped, wrapped, readerIndex, writerIndex, unwrapped.MaxCapacity);
duplicate.MarkReaderIndex();
duplicate.MarkWriterIndex();
return(duplicate);
}
internal static void GetBytes(AbstractByteBuffer buf, byte *addr, int index, byte[] dst, int dstIndex, int length)
{
if (MathUtil.IsOutOfBounds(dstIndex, length, dst.Length))
{
throw new IndexOutOfRangeException($"dstIndex: {dstIndex}");
}
if (length != 0)
{
PlatformDependent.CopyMemory(addr, dst, dstIndex, length);
}
}
internal static void GetBytes(AbstractByteBuffer buf, byte *addr, int index, Stream output, int length)
{
if (length != 0)
{
IByteBuffer tmpBuf = buf.Allocator.Buffer(length);
try
{
byte[] tmp = tmpBuf.Array;
int offset = tmpBuf.ArrayOffset;
PlatformDependent.CopyMemory(addr, tmp, offset, length);
output.Write(tmp, offset, length);
}
finally
{
tmpBuf.Release();
}
}
}
internal UnpooledDuplicatedByteBuffer(AbstractByteBuffer buffer, int readerIndex, int writerIndex)
: base(buffer.MaxCapacity)
{
if (buffer is UnpooledDuplicatedByteBuffer duplicated)
{
this.buffer = duplicated.buffer;
}
else if (buffer is AbstractPooledDerivedByteBuffer)
{
this.buffer = (AbstractByteBuffer)buffer.Unwrap();
}
else
{
this.buffer = buffer;
}
this.SetIndex0(readerIndex, writerIndex);
this.MarkIndex(); // Mark read and writer index
}
internal static int SetBytes(AbstractByteBuffer buf, byte *addr, int index, Stream input, int length)
{
IByteBuffer tmpBuf = buf.Allocator.HeapBuffer(length);
try
{
byte[] tmp = tmpBuf.Array;
int offset = tmpBuf.ArrayOffset;
int readBytes = input.Read(tmp, offset, length);
if (readBytes > 0)
{
PlatformDependent.CopyMemory(tmp, offset, addr, readBytes);
}
return(readBytes);
}
finally
{
tmpBuf.Release();
}
}
internal static IByteBuffer Copy(AbstractByteBuffer buf, byte *addr, int index, int length)
{
IByteBuffer copy = buf.Allocator.Buffer(length, buf.MaxCapacity);
if (length != 0)
{
if (copy.HasMemoryAddress)
{
fixed(byte *dst = ©.GetPinnableMemoryAddress())
{
PlatformDependent.CopyMemory(addr, dst, length);
}
copy.SetIndex(0, length);
}
else
{
copy.WriteBytes(buf, index, length);
}
}
return(copy);
}
internal static PooledSlicedByteBuffer NewInstance(AbstractByteBuffer unwrapped, IByteBuffer wrapped, int index, int length)
{
CheckSliceOutOfBounds(index, length, unwrapped);
return(NewInstance0(unwrapped, wrapped, index, length));
}
// No need to check length zero, the calling method already done it internal static void SetBytes(AbstractByteBuffer buf, byte *addr, int index, byte[] src, int srcIndex, int length) => PlatformDependent.CopyMemory(src, srcIndex, addr, length);
public PooledNonRetainedSlicedByteBuffer(IReferenceCounted referenceCountDelegate, AbstractByteBuffer buffer, int index, int length)
: base(buffer, index, length)
{
this.referenceCountDelegate = referenceCountDelegate;
}
internal PooledNonRetainedDuplicateByteBuffer(IReferenceCounted referenceCountDelegate, AbstractByteBuffer buffer)
: base(buffer)
{
this.referenceCountDelegate = referenceCountDelegate;
}
public UnpooledDuplicatedByteBuffer(AbstractByteBuffer buffer)
: this(buffer, buffer.ReaderIndex, buffer.WriterIndex)
{
}