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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef NET_QUIC_QUIC_PROTOCOL_H_ | 5 #ifndef NET_QUIC_QUIC_PROTOCOL_H_ |
| 6 #define NET_QUIC_QUIC_PROTOCOL_H_ | 6 #define NET_QUIC_QUIC_PROTOCOL_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 #include <limits> | 9 #include <limits> |
| 10 #include <map> | 10 #include <map> |
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| 247 // will match the version number. | 247 // will match the version number. |
| 248 // When adding a new version to this enum you should add it to | 248 // When adding a new version to this enum you should add it to |
| 249 // kSupportedQuicVersions (if appropriate), and also add a new case to the | 249 // kSupportedQuicVersions (if appropriate), and also add a new case to the |
| 250 // helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and | 250 // helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and |
| 251 // QuicVersionToString. | 251 // QuicVersionToString. |
| 252 enum QuicVersion { | 252 enum QuicVersion { |
| 253 // Special case to indicate unknown/unsupported QUIC version. | 253 // Special case to indicate unknown/unsupported QUIC version. |
| 254 QUIC_VERSION_UNSUPPORTED = 0, | 254 QUIC_VERSION_UNSUPPORTED = 0, |
| 255 | 255 |
| 256 QUIC_VERSION_13 = 13, | 256 QUIC_VERSION_13 = 13, |
| 257 QUIC_VERSION_14 = 14, | |
| 258 QUIC_VERSION_15 = 15, | 257 QUIC_VERSION_15 = 15, |
| 259 QUIC_VERSION_16 = 16, // Current version. | 258 QUIC_VERSION_16 = 16, // Current version. |
| 260 }; | 259 }; |
| 261 | 260 |
| 262 // This vector contains QUIC versions which we currently support. | 261 // This vector contains QUIC versions which we currently support. |
| 263 // This should be ordered such that the highest supported version is the first | 262 // This should be ordered such that the highest supported version is the first |
| 264 // element, with subsequent elements in descending order (versions can be | 263 // element, with subsequent elements in descending order (versions can be |
| 265 // skipped as necessary). | 264 // skipped as necessary). |
| 266 // | 265 // |
| 267 // IMPORTANT: if you are addding to this list, follow the instructions at | 266 // IMPORTANT: if you are addding to this list, follow the instructions at |
| 268 // http://sites/quic/adding-and-removing-versions | 267 // http://sites/quic/adding-and-removing-versions |
| 269 static const QuicVersion kSupportedQuicVersions[] = {QUIC_VERSION_16, | 268 static const QuicVersion kSupportedQuicVersions[] = {QUIC_VERSION_16, |
| 270 QUIC_VERSION_15, | 269 QUIC_VERSION_15, |
| 271 QUIC_VERSION_14, | |
| 272 QUIC_VERSION_13}; | 270 QUIC_VERSION_13}; |
| 273 | 271 |
| 274 typedef std::vector<QuicVersion> QuicVersionVector; | 272 typedef std::vector<QuicVersion> QuicVersionVector; |
| 275 | 273 |
| 276 // Returns a vector of QUIC versions in kSupportedQuicVersions. | 274 // Returns a vector of QUIC versions in kSupportedQuicVersions. |
| 277 NET_EXPORT_PRIVATE QuicVersionVector QuicSupportedVersions(); | 275 NET_EXPORT_PRIVATE QuicVersionVector QuicSupportedVersions(); |
| 278 | 276 |
| 279 // QuicTag is written to and read from the wire, but we prefer to use | 277 // QuicTag is written to and read from the wire, but we prefer to use |
| 280 // the more readable QuicVersion at other levels. | 278 // the more readable QuicVersion at other levels. |
| 281 // Helper function which translates from a QuicVersion to a QuicTag. Returns 0 | 279 // Helper function which translates from a QuicVersion to a QuicTag. Returns 0 |
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| 1011 WriteStatus status; | 1009 WriteStatus status; |
| 1012 union { | 1010 union { |
| 1013 int bytes_written; // only valid when status is OK | 1011 int bytes_written; // only valid when status is OK |
| 1014 int error_code; // only valid when status is ERROR | 1012 int error_code; // only valid when status is ERROR |
| 1015 }; | 1013 }; |
| 1016 }; | 1014 }; |
| 1017 | 1015 |
| 1018 } // namespace net | 1016 } // namespace net |
| 1019 | 1017 |
| 1020 #endif // NET_QUIC_QUIC_PROTOCOL_H_ | 1018 #endif // NET_QUIC_QUIC_PROTOCOL_H_ |
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