44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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/* Copyright (c) 2014, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#ifndef HEADER_PACKETED_BIO
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#define HEADER_PACKETED_BIO
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#include <openssl/base.h>
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#include <openssl/bio.h>
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#if defined(OPENSSL_WINDOWS)
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OPENSSL_MSVC_PRAGMA(warning(push, 3))
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#include <winsock2.h>
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OPENSSL_MSVC_PRAGMA(warning(pop))
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#else
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#include <sys/time.h>
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#endif
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// PacketedBioCreate creates a filter BIO which implements a reliable in-order
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// blocking datagram socket. It uses the value of |*clock| as the clock.
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//
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// During a |BIO_read|, the peer may signal the filter BIO to simulate a
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// timeout. The operation will fail immediately. The caller must then call
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// |PacketedBioAdvanceClock| before retrying |BIO_read|.
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bssl::UniquePtr<BIO> PacketedBioCreate(timeval *clock);
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// PacketedBioAdvanceClock advances |bio|'s clock and returns true if there is a
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// pending timeout. Otherwise, it returns false.
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bool PacketedBioAdvanceClock(BIO *bio);
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#endif // HEADER_PACKETED_BIO
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