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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_CORE_QUIC_VERSIONS_H_ | 5 #ifndef NET_QUIC_CORE_QUIC_VERSIONS_H_ |
| 6 #define NET_QUIC_CORE_QUIC_VERSIONS_H_ | 6 #define NET_QUIC_CORE_QUIC_VERSIONS_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "net/quic/core/quic_tag.h" | 11 #include "net/quic/core/quic_tag.h" |
| 12 #include "net/quic/core/quic_types.h" | 12 #include "net/quic/core/quic_types.h" |
| 13 #include "net/quic/platform/api/quic_export.h" |
| 13 | 14 |
| 14 namespace net { | 15 namespace net { |
| 15 | 16 |
| 16 // The available versions of QUIC. Guaranteed that the integer value of the enum | 17 // The available versions of QUIC. Guaranteed that the integer value of the enum |
| 17 // will match the version number. | 18 // will match the version number. |
| 18 // When adding a new version to this enum you should add it to | 19 // When adding a new version to this enum you should add it to |
| 19 // kSupportedQuicVersions (if appropriate), and also add a new case to the | 20 // kSupportedQuicVersions (if appropriate), and also add a new case to the |
| 20 // helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and | 21 // helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and |
| 21 // QuicVersionToString. | 22 // QuicVersionToString. |
| 22 enum QuicVersion { | 23 enum QuicVersion { |
| (...skipping 15 matching lines...) Expand all Loading... |
| 38 // skipped as necessary). | 39 // skipped as necessary). |
| 39 // | 40 // |
| 40 // IMPORTANT: if you are adding to this list, follow the instructions at | 41 // IMPORTANT: if you are adding to this list, follow the instructions at |
| 41 // http://sites/quic/adding-and-removing-versions | 42 // http://sites/quic/adding-and-removing-versions |
| 42 static const QuicVersion kSupportedQuicVersions[] = { | 43 static const QuicVersion kSupportedQuicVersions[] = { |
| 43 QUIC_VERSION_36, QUIC_VERSION_35, QUIC_VERSION_34}; | 44 QUIC_VERSION_36, QUIC_VERSION_35, QUIC_VERSION_34}; |
| 44 | 45 |
| 45 typedef std::vector<QuicVersion> QuicVersionVector; | 46 typedef std::vector<QuicVersion> QuicVersionVector; |
| 46 | 47 |
| 47 // Returns a vector of QUIC versions in kSupportedQuicVersions. | 48 // Returns a vector of QUIC versions in kSupportedQuicVersions. |
| 48 NET_EXPORT_PRIVATE QuicVersionVector AllSupportedVersions(); | 49 QUIC_EXPORT_PRIVATE QuicVersionVector AllSupportedVersions(); |
| 49 | 50 |
| 50 // Returns a vector of QUIC versions from kSupportedQuicVersions which exclude | 51 // Returns a vector of QUIC versions from kSupportedQuicVersions which exclude |
| 51 // any versions which are disabled by flags. | 52 // any versions which are disabled by flags. |
| 52 NET_EXPORT_PRIVATE QuicVersionVector CurrentSupportedVersions(); | 53 QUIC_EXPORT_PRIVATE QuicVersionVector CurrentSupportedVersions(); |
| 53 | 54 |
| 54 // Returns a vector of QUIC versions from |versions| which exclude any versions | 55 // Returns a vector of QUIC versions from |versions| which exclude any versions |
| 55 // which are disabled by flags. | 56 // which are disabled by flags. |
| 56 NET_EXPORT_PRIVATE QuicVersionVector | 57 QUIC_EXPORT_PRIVATE QuicVersionVector |
| 57 FilterSupportedVersions(QuicVersionVector versions); | 58 FilterSupportedVersions(QuicVersionVector versions); |
| 58 | 59 |
| 59 // Returns QUIC version of |index| in result of |versions|. Returns | 60 // Returns QUIC version of |index| in result of |versions|. Returns |
| 60 // QUIC_VERSION_UNSUPPORTED if |index| is out of bounds. | 61 // QUIC_VERSION_UNSUPPORTED if |index| is out of bounds. |
| 61 NET_EXPORT_PRIVATE QuicVersionVector | 62 QUIC_EXPORT_PRIVATE QuicVersionVector |
| 62 VersionOfIndex(const QuicVersionVector& versions, int index); | 63 VersionOfIndex(const QuicVersionVector& versions, int index); |
| 63 | 64 |
| 64 // QuicTag is written to and read from the wire, but we prefer to use | 65 // QuicTag is written to and read from the wire, but we prefer to use |
| 65 // the more readable QuicVersion at other levels. | 66 // the more readable QuicVersion at other levels. |
| 66 // Helper function which translates from a QuicVersion to a QuicTag. Returns 0 | 67 // Helper function which translates from a QuicVersion to a QuicTag. Returns 0 |
| 67 // if QuicVersion is unsupported. | 68 // if QuicVersion is unsupported. |
| 68 NET_EXPORT_PRIVATE QuicTag QuicVersionToQuicTag(const QuicVersion version); | 69 QUIC_EXPORT_PRIVATE QuicTag QuicVersionToQuicTag(const QuicVersion version); |
| 69 | 70 |
| 70 // Returns appropriate QuicVersion from a QuicTag. | 71 // Returns appropriate QuicVersion from a QuicTag. |
| 71 // Returns QUIC_VERSION_UNSUPPORTED if version_tag cannot be understood. | 72 // Returns QUIC_VERSION_UNSUPPORTED if version_tag cannot be understood. |
| 72 NET_EXPORT_PRIVATE QuicVersion QuicTagToQuicVersion(const QuicTag version_tag); | 73 QUIC_EXPORT_PRIVATE QuicVersion QuicTagToQuicVersion(const QuicTag version_tag); |
| 73 | 74 |
| 74 // Helper function which translates from a QuicVersion to a string. | 75 // Helper function which translates from a QuicVersion to a string. |
| 75 // Returns strings corresponding to enum names (e.g. QUIC_VERSION_6). | 76 // Returns strings corresponding to enum names (e.g. QUIC_VERSION_6). |
| 76 NET_EXPORT_PRIVATE std::string QuicVersionToString(const QuicVersion version); | 77 QUIC_EXPORT_PRIVATE std::string QuicVersionToString(const QuicVersion version); |
| 77 | 78 |
| 78 // Returns comma separated list of string representations of QuicVersion enum | 79 // Returns comma separated list of string representations of QuicVersion enum |
| 79 // values in the supplied |versions| vector. | 80 // values in the supplied |versions| vector. |
| 80 NET_EXPORT_PRIVATE std::string QuicVersionVectorToString( | 81 QUIC_EXPORT_PRIVATE std::string QuicVersionVectorToString( |
| 81 const QuicVersionVector& versions); | 82 const QuicVersionVector& versions); |
| 82 | 83 |
| 83 } // namespace net | 84 } // namespace net |
| 84 | 85 |
| 85 #endif // NET_QUIC_CORE_QUIC_VERSIONS_H_ | 86 #endif // NET_QUIC_CORE_QUIC_VERSIONS_H_ |
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