projects / thirdparty / openssl.git / blame
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|---|---|---|
| eef977aa MC |
1 | /* Copyright (c) 2014, Google Inc. |
| 2 | * | |
| 3 | * Permission to use, copy, modify, and/or distribute this software for any | |
| 4 | * purpose with or without fee is hereby granted, provided that the above | |
| 5 | * copyright notice and this permission notice appear in all copies. | |
| 6 | * | |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
| 10 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
| 12 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
| 13 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ | |
| 14 | ||
| 15 | #ifndef HEADER_PACKETED_BIO | |
| 16 | #define HEADER_PACKETED_BIO | |
| 17 | ||
| 7b73b7be | 18 | #include <openssl/base.h> |
| eef977aa MC |
19 | #include <openssl/bio.h> |
| 20 | ||
| 1669b7b5 | 21 | #if defined(OPENSSL_SYS_WINDOWS) |
| 7b73b7be | 22 | OPENSSL_MSVC_PRAGMA(warning(push, 3)) |
| eef977aa | 23 | #include <winsock2.h> |
| 7b73b7be | 24 | OPENSSL_MSVC_PRAGMA(warning(pop)) |
| eef977aa MC |
25 | #else |
| 26 | #include <sys/time.h> | |
| 27 | #endif | |
| 28 | ||
| 29 | ||
| 30 | // PacketedBioCreate creates a filter BIO which implements a reliable in-order | |
| 7b73b7be MC |
31 | // blocking datagram socket. It internally maintains a clock and honors |
| 32 | // |BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT| based on it. | |
| eef977aa | 33 | // |
| 7b73b7be MC |
34 | // During a |BIO_read|, the peer may signal the filter BIO to simulate a |
| 35 | // timeout. If |advance_clock| is true, it automatically advances the clock and | |
| 36 | // continues reading, subject to the read deadline. Otherwise, it fails | |
| 37 | // immediately. The caller must then call |PacketedBioAdvanceClock| before | |
| 38 | // retrying |BIO_read|. | |
| 39 | bssl::UniquePtr<BIO> PacketedBioCreate(bool advance_clock); | |
| 40 | ||
| 41 | // PacketedBioGetClock returns the current time for |bio|. | |
| 42 | timeval PacketedBioGetClock(const BIO *bio); | |
| 43 | ||
| 44 | // PacketedBioAdvanceClock advances |bio|'s internal clock and returns true if | |
| 45 | // there is a pending timeout. Otherwise, it returns false. | |
| 46 | bool PacketedBioAdvanceClock(BIO *bio); | |
| eef977aa MC |
47 | |
| 48 | ||
| 49 | #endif // HEADER_PACKETED_BIO |