diff options
Diffstat (limited to 'src/mongo/db/wire_version.h')
| -rw-r--r-- | src/mongo/db/wire_version.h | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/src/mongo/db/wire_version.h b/src/mongo/db/wire_version.h index f27f0962655..d79b6837a18 100644 --- a/src/mongo/db/wire_version.h +++ b/src/mongo/db/wire_version.h @@ -28,41 +28,41 @@ namespace mongo { - /** - * The 'WireVersion' captures all "protocol events" the write protocol went through. A - * protocol event is a change in the syntax of messages on the wire or the semantics of - * existing messages. We may also add "logical" entries for releases, although that's not - * mandatory. - * - * We use the wire version to determine if two agents (a driver, a mongos, or a mongod) can - * interact. Each agent carries two versions, a 'max' and a 'min' one. If the two agents - * are on the same 'max' number, they stricly speak the same wire protocol and it is safe - * to allow them to communicate. If two agents' ranges do not intersect, they should not be - * allowed to communicate. - * - * If two agents have at least one version in common they can communicate, but one of the - * sides has to be ready to compensate for not being on its partner version. - */ - enum WireVersion { - // Everything before we started tracking. - RELEASE_2_4_AND_BEFORE = 0, +/** + * The 'WireVersion' captures all "protocol events" the write protocol went through. A + * protocol event is a change in the syntax of messages on the wire or the semantics of + * existing messages. We may also add "logical" entries for releases, although that's not + * mandatory. + * + * We use the wire version to determine if two agents (a driver, a mongos, or a mongod) can + * interact. Each agent carries two versions, a 'max' and a 'min' one. If the two agents + * are on the same 'max' number, they stricly speak the same wire protocol and it is safe + * to allow them to communicate. If two agents' ranges do not intersect, they should not be + * allowed to communicate. + * + * If two agents have at least one version in common they can communicate, but one of the + * sides has to be ready to compensate for not being on its partner version. + */ +enum WireVersion { + // Everything before we started tracking. + RELEASE_2_4_AND_BEFORE = 0, - // The aggregation command may now be requested to return cursors. - AGG_RETURNS_CURSORS = 1, + // The aggregation command may now be requested to return cursors. + AGG_RETURNS_CURSORS = 1, - // insert, update, and delete batch command - BATCH_COMMANDS = 2, + // insert, update, and delete batch command + BATCH_COMMANDS = 2, - // support SCRAM-SHA1, listIndexes, listCollections, new explain - RELEASE_2_7_7 = 3 - }; + // support SCRAM-SHA1, listIndexes, listCollections, new explain + RELEASE_2_7_7 = 3 +}; - // Latest version that the server accepts. This should always be at the latest entry in - // WireVersion. - static const int maxWireVersion = RELEASE_2_7_7; +// Latest version that the server accepts. This should always be at the latest entry in +// WireVersion. +static const int maxWireVersion = RELEASE_2_7_7; - // Minimum version that the server accepts. We should bump this whenever we don't want - // to allow communication with too old agents. - static const int minWireVersion = RELEASE_2_4_AND_BEFORE; +// Minimum version that the server accepts. We should bump this whenever we don't want +// to allow communication with too old agents. +static const int minWireVersion = RELEASE_2_4_AND_BEFORE; -} // namespace mongo +} // namespace mongo |