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/*
* 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 OSSL_TEST_SHIM_PACKETED_BIO_H
#define OSSL_TEST_SHIM_PACKETED_BIO_H
#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 // OSSL_TEST_SHIM_PACKETED_BIO_H
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