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