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| author | Dianna Hohensee <dianna.hohensee@mongodb.com> | 2020-10-23 01:48:29 -0400 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2020-12-16 06:55:42 +0000 |
| commit | 0efb63b64441f935b5d06f4180d0969434327551 (patch) | |
| tree | c80b550b5d0e5ee8e9220c144877dc98e573b09b /src/mongo/db/catalog/collection.cpp | |
| parent | 6019169e828c7100cd72ac617ab0ce579b20c957 (diff) | |
| download | mongo-0efb63b64441f935b5d06f4180d0969434327551.tar.gz | |
SERVER-51319 Call DatabaseShardingState::checkDbVersion() and CSS::getCollectionDescription() safely in AutoGetCollectionLockFree and expand lock-free sharding testing.
CollectionShardingState and DatabaseShardingState can now be accessed without a lock via new
getSharedForLockFreeReads() functions on their respective interfaces.
The shard key will now be available in the AutoGetCollection* RAII types via the CollectionPtr. This
allows lock-free reads to acquire a single view of the sharding state to use throughout a read
operation.
Diffstat (limited to 'src/mongo/db/catalog/collection.cpp')
| -rw-r--r-- | src/mongo/db/catalog/collection.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mongo/db/catalog/collection.cpp b/src/mongo/db/catalog/collection.cpp index 5a4eeb5c584..59513b73ad1 100644 --- a/src/mongo/db/catalog/collection.cpp +++ b/src/mongo/db/catalog/collection.cpp @@ -103,6 +103,11 @@ void CollectionPtr::restore() const { } } +const BSONObj& CollectionPtr::getShardKeyPattern() const { + dassert(_shardKeyPattern); + return _shardKeyPattern.get(); +} + // ---- namespace { |