SERVER-43712 mongos use ReadWriteConcernDefaults for RC

1 files changed, 9 insertions, 2 deletions

diff --git a/src/mongo/db/transaction_validation.h b/src/mongo/db/transaction_validation.h
index 2e57866eeb1..f2447f6ab3a 100644
--- a/src/mongo/db/transaction_validation.h
+++ b/src/mongo/db/transaction_validation.h
@@ -30,14 +30,16 @@
 #pragma once
 
 #include "mongo/db/logical_session_id.h"
+#include "mongo/db/repl/read_concern_level.h"
 #include "mongo/db/write_concern_options.h"
 
 namespace mongo {
 
 /**
- * Returns true if the given cmd name is allowed to specify write concern in a transaction.
+ * Returns true if the given cmd name is a transaction control command.  These are also the only
+ * commands allowed to specify write concern in a transaction.
  */
-bool commandSupportsWriteConcernInTransaction(StringData cmdName);
+bool isTransactionCommand(StringData cmdName);
 
 /**
  * Throws if the given write concern is not allowed in a transaction.
@@ -45,6 +47,11 @@ bool commandSupportsWriteConcernInTransaction(StringData cmdName);
 void validateWriteConcernForTransaction(const WriteConcernOptions& wcResult, StringData cmdName);
 
 /**
+ * Returns true if the given readConcern level is valid for use in a transaction.
+ */
+bool isReadConcernLevelAllowedInTransaction(repl::ReadConcernLevel readConcernLevel);
+
+/**
  * Returns true if the given command is one of the commands that does not check out a session
  * regardless of its session options, e.g. two-phase commit commands.
  */