1 files changed, 21 insertions, 0 deletions
diff --git a/src/mongo/db/repl/replication_coordinator.h b/src/mongo/db/repl/replication_coordinator.h
index 229ee7e5df3..9c310e41025 100644
--- a/src/mongo/db/repl/replication_coordinator.h
+++ b/src/mongo/db/repl/replication_coordinator.h
@@ -46,6 +46,7 @@ namespace mongo {
 
 class BSONObj;
 class BSONObjBuilder;
+class CommitQuorumOptions;
 class IndexDescriptor;
 class NamespaceString;
 class OperationContext;
@@ -251,6 +252,26 @@ public:
         const WriteConcernOptions& writeConcern) const = 0;
 
     /**
+     * Checks if the 'commitQuorum' can be satisfied by all the members in the replica set; if it
+     * cannot be satisfied, then the 'UnsatisfiableCommitQuorum' error code is returned.
+     *
+     * Returns the 'NoReplicationEnabled' error code if this is called without replication enabled.
+     */
+    virtual Status checkIfCommitQuorumCanBeSatisfied(
+        const CommitQuorumOptions& commitQuorum) const = 0;
+
+    /**
+     * Checks if the 'commitQuorum' has been satisfied by the 'commitReadyMembers', if it has been
+     * satisfied, return true.
+     *
+     * Prior to checking if the 'commitQuorum' is satisfied by 'commitReadyMembers', it calls
+     * 'checkIfCommitQuorumCanBeSatisfied()' with all the replica set members.
+     */
+    virtual StatusWith<bool> checkIfCommitQuorumIsSatisfied(
+        const CommitQuorumOptions& commitQuorum,
+        const std::vector<HostAndPort>& commitReadyMembers) const = 0;
+
+    /**
      * Returns Status::OK() if it is valid for this node to serve reads on the given collection
      * and an errorcode indicating why the node cannot if it cannot.
      */