rgw: introduce RGW Role Rados service

This handles the metadata for RGW Roles with the RADOS backend

Signed-off-by: Abhishek Lekshmanan <abhishek@suse.com>

src/rgw/CMakeLists.txt

@@ -39,6 +39,7 @@ set(librgw_common_srcs
   services/svc_quota.cc
   services/svc_sync_modules.cc
   services/svc_rados.cc
+  services/svc_role_rados.cc
   services/svc_sys_obj.cc
   services/svc_sys_obj_cache.cc
   services/svc_sys_obj_core.cc

src/rgw/services/svc_role_rados.cc

@@ -0,0 +1,6 @@
+#include "svc_role_rados.h"
+
+RGWSI_MetaBackend_Handler* RGWSI_Role_RADOS::get_be_handler()
+{
+  return be_handler;
+}

src/rgw/services/svc_role_rados.h

@@ -0,0 +1,79 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2020 SUSE LLC
+ *
+ * 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 "svc_role.h"
+#include "svc_meta_be.h"
+
+class RGWSI_Role_RADOS: public RGWSI_Role
+{
+ public:
+  RGWSI_Role_RADOS(CephContext *cct) : RGWSI_Role(cct) {}
+  ~RGWSI_Role_RADOS() {}
+
+  RGWSI_MetaBackend_Handler * get_be_handler() override;
+
+  int store_info(RGWSI_MetaBackend::Context *ctx,
+  		 const RGWRole& role,
+  		 RGWObjVersionTracker * const objv_tracker,
+  		 real_time * const pmtime,
+  		 bool exclusive,
+		 std::map<std::string, bufferlist> * pattrs,
+  		 optional_yield y) override;
+
+  int store_name(RGWSI_MetaBackend::Context *ctx,
+  		 const std::string& name,
+  		 RGWObjVersionTracker * const objv_tracker,
+  		 real_time * const pmtime,
+  		 bool exclusive,
+  		 optional_yield y) override;
+
+  int store_path(RGWSI_MetaBackend::Context *ctx,
+  		 const std::string& path,
+  		 RGWObjVersionTracker * const objv_tracker,
+  		 real_time * const pmtime,
+  		 bool exclusive,
+  		 optional_yield y) override;
+
+  int read_info(RGWSI_MetaBackend::Context *ctx,
+  		RGWRole *role,
+  		RGWObjVersionTracker * const objv_tracker,
+  		real_time * const pmtime,
+		std::map<std::string, bufferlist> * pattrs,
+  		optional_yield y) override;
+
+  int read_name(RGWSI_MetaBackend::Context *ctx,
+  		std::string& name,
+  		RGWObjVersionTracker * const objv_tracker,
+  		real_time * const pmtime,
+  		optional_yield y) override;
+
+  int read_path(RGWSI_MetaBackend::Context *ctx,
+  		std::string& path,
+  		RGWObjVersionTracker * const objv_tracker,
+  		real_time * const pmtime,
+  		optional_yield y) override;
+
+  int delete_info(RGWSI_MetaBackend::Context *ctx,
+		  const std::string& name,
+		  RGWObjVersionTracker * const objv_tracker,
+		  optional_yield y) override;
+
+
+private:
+  RGWSI_MetaBackend_Handler *be_handler;
+  std::unique_ptr<RGWSI_MetaBackend::Module> be_module;
+};