public int Read(IBufferWriter bufferWriter, int count)
{
int recount = 0;
IBuffer sbuffer = GetReadBuffer();
int offset = 0;
Memory <byte> memory = null;
while (sbuffer != null)
{
memory = bufferWriter.GetMemory(count);
int rc = Read(memory);
offset += rc;
count -= rc;
recount += rc;
bufferWriter.WriteAdvance(rc);
if (count == 0)
{
break;
}
sbuffer = GetReadBuffer();
}
return(recount);
}