public PacketBuffer(PoolableMemory buffer, bool writeable, bool clearBuffer = false)
{
this.buffer = buffer.Memory;
rented = buffer.RentedBuffer;
CanWrite = writeable;
this.clearBuffer = clearBuffer;
}
public PoolableMemory ReadPooledArray(int length)
{
PrepareRead(length);
PoolableMemory value = PoolableMemory.Allocate(length, true);
buffer.Slice(position, length).CopyTo(value.Memory);
position += sizeof(ushort) + length;
return(value);
}
public PoolableMemory ReadMediumPooledArray()
{
PrepareRead(sizeof(ushort));
ushort length = Unsafe.ReadUnaligned <ushort>(ref buffer.Span[position]);
if (!BitConverter.IsLittleEndian)
{
length = BinaryPrimitives.ReverseEndianness(length);
}
PrepareRead(sizeof(ushort) + length);
PoolableMemory value = PoolableMemory.Allocate(length, true);
buffer.Slice(position + sizeof(ushort), length).CopyTo(value.Memory);
position += sizeof(ushort) + length;
return(value);
}
private void Allocate(int length)
{
if (length > 0)
{
PoolableMemory old = new PoolableMemory(buffer, rented);
PoolableMemory memory = PoolableMemory.Allocate(length, false);
old.Memory.CopyTo(memory.Memory);
old.Return(clearBuffer);
buffer = memory.Memory;
rented = memory.RentedBuffer;
}
else
{
buffer = Memory <byte> .Empty;
}
}