diff options
Diffstat (limited to 'src/mongo/db/storage/recovery_unit.h')
| -rw-r--r-- | src/mongo/db/storage/recovery_unit.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/mongo/db/storage/recovery_unit.h b/src/mongo/db/storage/recovery_unit.h index f8c70309ae2..eeddfafd624 100644 --- a/src/mongo/db/storage/recovery_unit.h +++ b/src/mongo/db/storage/recovery_unit.h @@ -253,7 +253,6 @@ public: * - when using ReadSource::kNoOverlap, the timestamp chosen by the storage engine. * - when using ReadSource::kAllDurableSnapshot, the timestamp chosen using the storage * engine's all_durable timestamp. - * - when using ReadSource::kLastApplied, the timestamp chosen using the storage engine's last * applied timestamp. Can return boost::none if no timestamp has been established. * - when using ReadSource::kMajorityCommitted, the majority committed timestamp chosen by the * storage engine after a transaction has been opened or after a call to @@ -399,11 +398,6 @@ public: */ kNoOverlap, /** - * Read from the last applied timestamp. New transactions start at the most up-to-date - * timestamp. - */ - kLastApplied, - /** * Read from the all_durable timestamp. New transactions will always read from the same * timestamp and never advance. */ @@ -414,6 +408,24 @@ public: kProvided }; + static std::string toString(ReadSource rs) { + switch (rs) { + case ReadSource::kUnset: + return "kUnset"; + case ReadSource::kNoTimestamp: + return "kNoTimestamp"; + case ReadSource::kMajorityCommitted: + return "kMajorityCommitted"; + case ReadSource::kNoOverlap: + return "kNoOverlap"; + case ReadSource::kAllDurableSnapshot: + return "kAllDurableSnapshot"; + case ReadSource::kProvided: + return "kProvided"; + } + MONGO_UNREACHABLE; + } + /** * Sets which timestamp to use for read transactions. If 'provided' is supplied, only kProvided * is an acceptable input. |