SERVER-37643 update IndexBuildsCoordinator and IndexBuildsManager interfaces.

rename IndexBuildsCoordinator::buildIndex() to startIndexBuild()
add ReplIndexBuildState::dbName and use in IndexBuildsCoordinator registration
add IndexBuildsManager::isBackgroundBuilding()
remove unused IndexBuildsManager::finishConstraintPhase()
add IndexBuildsManager::drainBackgroundWrites()
remove nss argument from IndexBuildsManager::setUpIndexBuild()

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mongo/db/repl_index_build_state.h b/src/mongo/db/repl_index_build_state.h
index aa7ddd26830..57f4a4c1d92 100644
--- a/src/mongo/db/repl_index_build_state.h
+++ b/src/mongo/db/repl_index_build_state.h
@@ -55,10 +55,12 @@ namespace mongo {
 struct ReplIndexBuildState {
     ReplIndexBuildState(const UUID& indexBuildUUID,
                         const UUID& collUUID,
+                        const std::string& dbName,
                         const std::vector<std::string> names,
                         const std::vector<BSONObj>& specs)
         : buildUUID(indexBuildUUID),
           collectionUUID(collUUID),
+          dbName(dbName),
           indexNames(names),
           indexSpecs(specs) {
         // Verify that the given index names and index specs match.
@@ -76,6 +78,10 @@ struct ReplIndexBuildState {
     // the collection UUID is used to maintain correct association.
     const UUID collectionUUID;
 
+    // Identifies the database containing the index being built. Unlike collections, databases
+    // cannot be renamed.
+    const std::string dbName;
+
     // The names of the indexes being built.
     const std::vector<std::string> indexNames;