1 files changed, 64 insertions, 0 deletions
diff --git a/src/mongo/db/exec/plan_stage.cpp b/src/mongo/db/exec/plan_stage.cpp
new file mode 100644
index 00000000000..5c0f9c95472
--- /dev/null
+++ b/src/mongo/db/exec/plan_stage.cpp
@@ -0,0 +1,64 @@
+/**
+ *    Copyright (C) 2015 MongoDB Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the GNU Affero General Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kQuery
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/exec/plan_stage.h"
+
+namespace mongo {
+
+void PlanStage::saveState() {
+    ++_commonStats.yields;
+    for (auto&& child : _children) {
+        child->saveState();
+    }
+
+    doSaveState();
+}
+
+void PlanStage::restoreState(OperationContext* opCtx) {
+    ++_commonStats.unyields;
+    for (auto&& child : _children) {
+        child->restoreState(opCtx);
+    }
+
+    doRestoreState(opCtx);
+}
+
+void PlanStage::invalidate(OperationContext* txn, const RecordId& dl, InvalidationType type) {
+    ++_commonStats.invalidates;
+    for (auto&& child : _children) {
+        child->invalidate(txn, dl, type);
+    }
+
+    doInvalidate(txn, dl, type);
+}
+
+}  // namespace mongo