Split FsdbCowStorage into state and stats storage

Summary: as titled

Differential Revision: D75559770

fbshipit-source-id: d9602d960a328bda5fecc6cdf30b36f7ec776bc7

Author: elangovan911-meta

cmake/fsdb/FsdbOperInstantiations.cmake

@@ -25,7 +25,8 @@ target_link_libraries(fsdb_cow_root_path_visitor
 )
 
 add_library(fsdb_cow_storage
-  fboss/fsdb/oper/instantiations/FsdbCowStorage.cpp
+  fboss/fsdb/oper/instantiations/FsdbCowStateStorage.cpp
+  fboss/fsdb/oper/instantiations/FsdbCowStatsStorage.cpp
 )
 
 target_link_libraries(fsdb_cow_storage

fboss/fsdb/oper/instantiations/BUCK

@@ -35,7 +35,10 @@ cpp_library(
 
 cpp_library(
     name = "fsdb_cow_storage",
-    srcs = ["FsdbCowStorage.cpp"],
+    srcs = [
+        "FsdbCowStateStorage.cpp",
+        "FsdbCowStatsStorage.cpp",
+    ],
     headers = ["FsdbCowStorage.h"],
     exported_deps = [
         ":fsdb_cow_root",

fboss/fsdb/oper/instantiations/FsdbCowStorage.cpp renamed to fboss/fsdb/oper/instantiations/FsdbCowStateStorage.cpp

@@ -14,6 +14,4 @@ namespace facebook::fboss::fsdb {
 
 template class CowStorage<FsdbOperStateRoot>;
 
-template class CowStorage<FsdbOperStatsRoot>;
-
 } // namespace facebook::fboss::fsdb

fboss/fsdb/oper/instantiations/FsdbCowStatsStorage.cpp

@@ -0,0 +1,17 @@
+/*
+ *  Copyright (c) 2004-present, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+#include "fboss/fsdb/oper/instantiations/FsdbCowStorage.h"
+
+namespace facebook::fboss::fsdb {
+
+template class CowStorage<FsdbOperStatsRoot>;
+
+} // namespace facebook::fboss::fsdb