1 files changed, 110 insertions, 0 deletions
diff --git a/src/mongo/db/storage/mobile/mobile_recovery_unit.h b/src/mongo/db/storage/mobile/mobile_recovery_unit.h
new file mode 100644
index 00000000000..e6cf5c9415c
--- /dev/null
+++ b/src/mongo/db/storage/mobile/mobile_recovery_unit.h
@@ -0,0 +1,110 @@
+/**
+ *    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.
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "mongo/base/checked_cast.h"
+#include "mongo/db/operation_context.h"
+#include "mongo/db/record_id.h"
+#include "mongo/db/storage/mobile/mobile_session.h"
+#include "mongo/db/storage/mobile/mobile_session_pool.h"
+#include "mongo/db/storage/recovery_unit.h"
+#include "mongo/db/storage/snapshot.h"
+
+namespace mongo {
+
+class SortedDataInterface;
+
+class MobileRecoveryUnit final : public RecoveryUnit {
+public:
+    MobileRecoveryUnit(MobileSessionPool* sessionPool);
+    virtual ~MobileRecoveryUnit();
+
+    void beginUnitOfWork(OperationContext* opCtx) override;
+    void commitUnitOfWork() override;
+    void abortUnitOfWork() override;
+
+    bool waitUntilDurable() override {
+        return true;
+    }
+
+    void abandonSnapshot() override;
+
+    void registerChange(Change* change) override;
+
+    void* writingPtr(void* data, size_t len) override {
+        MONGO_UNREACHABLE;
+    }
+
+    void setRollbackWritesDisabled() override {}
+
+    SnapshotId getSnapshotId() const override {
+        return SnapshotId();
+    }
+
+    MobileSession* getSession(OperationContext* opCtx);
+
+    MobileSession* getSessionNoTxn(OperationContext* opCtx);
+
+    bool inActiveTxn() const {
+        return _active;
+    }
+
+    void assertInActiveTxn() const;
+
+    void enqueueFailedDrop(std::string& dropQuery);
+
+    static MobileRecoveryUnit* get(OperationContext* opCtx) {
+        return checked_cast<MobileRecoveryUnit*>(opCtx->recoveryUnit());
+    }
+
+private:
+    void _abort();
+    void _commit();
+
+    void _ensureSession(OperationContext* opCtx);
+    void _txnClose(bool commit);
+    void _txnOpen(OperationContext* opCtx);
+
+    bool _areWriteUnitOfWorksBanned = false;
+    bool _inUnitOfWork;
+    bool _active;
+
+    std::string _path;
+    MobileSessionPool* _sessionPool;
+    std::unique_ptr<MobileSession> _session;
+
+    using Changes = std::vector<std::unique_ptr<Change>>;
+    Changes _changes;
+};
+
+}  // namespace mongo