448     : impl_{std::move(impl)} {}  in TlsStream()
451   if (impl_) {  in ~TlsStream()
452     impl_->Close(nullptr);  in ~TlsStream()
463   TlsStreamImpl* pimpl = stream->impl_.get();  in Connect()
475   return impl_ ? true : false;  in IsOpen()
494   if (!impl_)  in ReadNonBlocking()
496   return impl_->ReadNonBlocking(buffer, size_to_read, size_read, end_of_stream,  in ReadNonBlocking()
504   if (!impl_)  in WriteNonBlocking()
506   return impl_->WriteNonBlocking(buffer, size_to_write, size_written, error);  in WriteNonBlocking()
510   if (!impl_)  in FlushBlocking()
512   return impl_->Flush(error);  in FlushBlocking()
516   if (impl_ && !impl_->Close(error))  in CloseBlocking()
518   impl_.reset();  in CloseBlocking()
525   if (!impl_)  in WaitForData()
527   return impl_->WaitForData(mode, callback, error);  in WaitForData()
534   if (!impl_)  in WaitForDataBlocking()
536   return impl_->WaitForDataBlocking(in_mode, timeout, out_mode, error);  in WaitForDataBlocking()
540   if (impl_)  in CancelPendingAsyncOperations()
541     impl_->CancelPendingAsyncOperations();  in CancelPendingAsyncOperations()