public static int CopyFromStream(this Memory <byte> memory, Stream stream)
{
Throw.IfNull(() => stream);
if (memory.IsEmpty || memory.Length < stream.Length || !stream.CanRead)
{
throw new ArgumentOutOfRangeException("invalid args");
}
stream.Position = 0;
using (var arr = RecyclableByteArray.Rent(1024))
{
int total = 0, read = 0;
while (total < stream.Length)
{
read = stream.Read(arr.Array, 0, arr.Array.Length);
if (read > 0)
{
arr.Array.AsMemory().Slice(0, read).CopyTo(memory.Slice(total, read));
}
total += read;
}
return(total);
}
}
public void CopyFromStream(Stream stream)
{
stream.Position = 0;
using (var arr = RecyclableByteArray.Rent(1024))
{
int total = 0, read = 0;
while (total < stream.Length)
{
read = stream.Read(arr.Array, 0, arr.Array.Length);
if (read > 0)
{
arr.Array.AsMemory().Slice(0, read).CopyTo(this.Memory.Slice(total, read));
}
total += read;
}
}
}
public static int CopyToStream(this ReadOnlyMemory <byte> memory, Stream stream)
{
Throw.IfNull(() => stream);
if (memory.IsEmpty || !stream.CanWrite)
{
throw new ArgumentOutOfRangeException("invalid args");
}
stream.Position = 0;
const int BUFF_LEN = 1024;
using (var arr = RecyclableByteArray.Rent(BUFF_LEN))
{
ReadOnlyMemoryReader reader = new ReadOnlyMemoryReader(memory);
while (reader.Position < reader.Length)
{
var slc = reader.Read(BUFF_LEN);
slc.CopyTo(arr.Array.AsMemory());
stream.Write(arr.Array, 0, slc.Length);
}
return(reader.Position);
}
}
