SERVER-28918 Make CRUD paths retryable

1 files changed, 75 insertions, 0 deletions

diff --git a/src/mongo/db/ops/write_ops_retryability.cpp b/src/mongo/db/ops/write_ops_retryability.cpp
new file mode 100644
index 00000000000..04c92c81213
--- /dev/null
+++ b/src/mongo/db/ops/write_ops_retryability.cpp
@@ -0,0 +1,75 @@
+/**
+ *    Copyright (C) 2017 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.
+ */
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/ops/single_write_result_gen.h"
+#include "mongo/db/ops/write_ops.h"
+#include "mongo/db/ops/write_ops_exec.h"
+#include "mongo/db/ops/write_ops_retryability.h"
+
+namespace mongo {
+
+SingleWriteResult parseOplogEntryForInsert(const repl::OplogEntry& entry) {
+    invariant(entry.getOpType() == repl::OpTypeEnum::kInsert);
+
+    SingleWriteResult res;
+    res.setN(1);
+    res.setNModified(0);
+    return res;
+}
+
+SingleWriteResult parseOplogEntryForUpdate(const repl::OplogEntry& entry) {
+    SingleWriteResult res;
+    // Upserts are stored as inserts.
+    if (entry.getOpType() == repl::OpTypeEnum::kInsert) {
+        res.setN(1);
+        res.setNModified(0);
+
+        BSONObjBuilder upserted;
+        upserted.append(entry.getObject()["_id"]);
+        res.setUpsertedId(upserted.obj());
+    } else if (entry.getOpType() == repl::OpTypeEnum::kUpdate) {
+        res.setN(1);
+        res.setNModified(1);
+    } else {
+        MONGO_UNREACHABLE;
+    }
+    return res;
+}
+
+SingleWriteResult parseOplogEntryForDelete(const repl::OplogEntry& entry) {
+    invariant(entry.getOpType() == repl::OpTypeEnum::kDelete);
+
+    SingleWriteResult res;
+    res.setN(1);
+    res.setNModified(0);
+    return res;
+}
+
+}  // namespace mongo