Imported OpenSSL 1.1.1a

test/ossl_shim/packeted_bio.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef HEADER_PACKETED_BIO
+#define HEADER_PACKETED_BIO
+
+#include <openssl/base.h>
+#include <openssl/bio.h>
+
+// PacketedBioCreate creates a filter BIO which implements a reliable in-order
+// blocking datagram socket. It internally maintains a clock and honors
+// |BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT| based on it.
+//
+// During a |BIO_read|, the peer may signal the filter BIO to simulate a
+// timeout. If |advance_clock| is true, it automatically advances the clock and
+// continues reading, subject to the read deadline. Otherwise, it fails
+// immediately. The caller must then call |PacketedBioAdvanceClock| before
+// retrying |BIO_read|.
+bssl::UniquePtr<BIO> PacketedBioCreate(bool advance_clock);
+
+// PacketedBioGetClock returns the current time for |bio|.
+timeval PacketedBioGetClock(const BIO *bio);
+
+// PacketedBioAdvanceClock advances |bio|'s internal clock and returns true if
+// there is a pending timeout. Otherwise, it returns false.
+bool PacketedBioAdvanceClock(BIO *bio);
+
+
+#endif  // HEADER_PACKETED_BIO