rgw: add rgw::putobj::ObjectProcessor

an abstract interface that deals with logical objects and their update
semantics

Signed-off-by: Casey Bodley <cbodley@redhat.com>

diff --git a/src/rgw/rgw_putobj_processor.h b/src/rgw/rgw_putobj_processor.h
new file mode 100644 (file)
index 0000000..d071194
--- /dev/null
+++ b/src/rgw/rgw_putobj_processor.h
@@ -0,0 +1,38 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2018 Red Hat, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#pragma once
+
+#include "rgw_putobj.h"
+#include "rgw_rados.h"
+
+namespace rgw::putobj {
+
+// a data consumer that writes an object in a bucket
+class ObjectProcessor : public DataProcessor {
+ public:
+  // prepare to start processing object data
+  virtual int prepare() = 0;
+
+  // complete the operation and make its result visible to clients
+  virtual int complete(size_t accounted_size, const std::string& etag,
+                       ceph::real_time *mtime, ceph::real_time set_mtime,
+                       std::map<std::string, bufferlist>& attrs,
+                       ceph::real_time delete_at,
+                       const char *if_match, const char *if_nomatch,
+                       const std::string *user_data,
+                       rgw_zone_set *zones_trace, bool *canceled) = 0;
+};
+
+} // namespace rgw::putobj