From 1b4a2e07e8648904c1164642e3de0179c7ab00af Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 18 Oct 2021 15:39:02 +0100
Subject: [PATCH] [Project] Start work on cdb backend

---
 src/libstat/CMakeLists.txt           |   3 +-
 src/libstat/backends/backends.h      |   2 +-
 src/libstat/backends/cdb_backend.cxx | 118 +++++++++++++++++++++++++++
 3 files changed, 121 insertions(+), 2 deletions(-)
 create mode 100644 src/libstat/backends/cdb_backend.cxx

diff --git a/src/libstat/CMakeLists.txt b/src/libstat/CMakeLists.txt
index 1019a9925..83020a56d 100644
--- a/src/libstat/CMakeLists.txt
+++ b/src/libstat/CMakeLists.txt
@@ -9,7 +9,8 @@ SET(CLASSIFIERSSRC	${CMAKE_CURRENT_SOURCE_DIR}/classifiers/bayes.c
 					${CMAKE_CURRENT_SOURCE_DIR}/classifiers/lua_classifier.c)
 
 SET(BACKENDSSRC 	${CMAKE_CURRENT_SOURCE_DIR}/backends/mmaped_file.c
-					${CMAKE_CURRENT_SOURCE_DIR}/backends/sqlite3_backend.c)
+					${CMAKE_CURRENT_SOURCE_DIR}/backends/sqlite3_backend.c
+					${CMAKE_CURRENT_SOURCE_DIR}/backends/cdb_backend.cxx)
 SET(CACHESSRC 	${CMAKE_CURRENT_SOURCE_DIR}/learn_cache/sqlite3_cache.c)
 
 SET(BACKENDSSRC 	${BACKENDSSRC}
diff --git a/src/libstat/backends/backends.h b/src/libstat/backends/backends.h
index fa3785540..7b61093bb 100644
--- a/src/libstat/backends/backends.h
+++ b/src/libstat/backends/backends.h
@@ -112,8 +112,8 @@ struct rspamd_stat_backend {
         void rspamd_##name##_close (gpointer ctx)
 
 RSPAMD_STAT_BACKEND_DEF(mmaped_file);
-
 RSPAMD_STAT_BACKEND_DEF(sqlite3);
+RSPAMD_STAT_BACKEND_DEF(cdb);
 
 #ifdef WITH_HIREDIS
 
diff --git a/src/libstat/backends/cdb_backend.cxx b/src/libstat/backends/cdb_backend.cxx
new file mode 100644
index 000000000..a36876a8f
--- /dev/null
+++ b/src/libstat/backends/cdb_backend.cxx
@@ -0,0 +1,118 @@
+/*-
+ * Copyright 2021 Vsevolod Stakhov
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * CDB read only statistics backend
+ */
+
+#include "config.h"
+#include "stat_internal.h"
+#include "contrib/cdb/cdb.h"
+
+namespace rspamd::stat::cdb {
+
+}
+
+/* C exports */
+gpointer
+rspamd_cdb_init(struct rspamd_stat_ctx* ctx,
+						 struct rspamd_config* cfg,
+						 struct rspamd_statfile* st)
+{
+	return nullptr;
+}
+gpointer
+rspamd_cdb_runtime(struct rspamd_task* task,
+							struct rspamd_statfile_config* stcf,
+							gboolean learn,
+							gpointer ctx)
+{
+	return nullptr;
+}
+gboolean
+rspamd_cdb_process_tokens(struct rspamd_task* task,
+								   GPtrArray* tokens,
+								   gint id,
+								   gpointer ctx)
+{
+	return false;
+}
+gboolean
+rspamd_cdb_finalize_process(struct rspamd_task* task,
+									 gpointer runtime,
+									 gpointer ctx)
+{
+	return false;
+}
+gboolean
+rspamd_cdb_learn_tokens(struct rspamd_task* task,
+								 GPtrArray* tokens,
+								 gint id,
+								 gpointer ctx)
+{
+	return false;
+}
+gboolean
+rspamd_cdb_finalize_learn(struct rspamd_task* task,
+								   gpointer runtime,
+								   gpointer ctx,
+								   GError** err)
+{
+	return false;
+}
+
+gulong rspamd_cdb_total_learns(struct rspamd_task* task,
+							   gpointer runtime,
+							   gpointer ctx)
+{
+	return 0;
+}
+gulong
+rspamd_cdb_inc_learns(struct rspamd_task* task,
+							 gpointer runtime,
+							 gpointer ctx)
+{
+	return (gulong)-1;
+}
+gulong
+rspamd_cdb_dec_learns(struct rspamd_task* task,
+							 gpointer runtime,
+							 gpointer ctx)
+{
+	return (gulong)-1;
+}
+gulong
+rspamd_cdb_learns(struct rspamd_task* task,
+						 gpointer runtime,
+						 gpointer ctx)
+{
+	return 0;
+}
+ucl_object_t*
+rspamd_cdb_get_stat(gpointer runtime, gpointer ctx)
+{
+	return nullptr;
+}
+gpointer
+rspamd_cdb_load_tokenizer_config(gpointer runtime, gsize* len)
+{
+	return nullptr;
+}
+void
+rspamd_cdb_close(gpointer ctx)
+{
+
+}
\ No newline at end of file
-- 
2.39.5