private static unsafe byte[] ExportArray(TryExport exporter)
{
int bufSize = 4096;
while (true)
{
byte[] buf = CryptoPool.Rent(bufSize);
int bytesWritten = 0;
bufSize = buf.Length;
fixed(byte *bufPtr = buf)
{
try
{
if (exporter(buf, out bytesWritten))
{
Span <byte> writtenSpan = new Span <byte>(buf, 0, bytesWritten);
return(writtenSpan.ToArray());
}
}
finally
{
CryptoPool.Return(buf, bytesWritten);
}
bufSize = checked (bufSize * 2);
}
}
}