支持以业务为单位，配置文件不持久化到本地

server/doris_server_kvdb.cpp

@@ -0,0 +1,97 @@
+#include <string.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+
+#include <string>
+
+#include "leveldb/db.h"
+#include "leveldb/comparator.h"
+#include "leveldb/cache.h"
+
+#include "doris_server_kvdb.h"
+
+struct doris_kvhandle
+{
+	leveldb::DB *kvdb;
+};
+
+struct doris_kvhandle *doris_kvdb_hanlde_new(const char *dir)
+{
+	struct doris_kvhandle *handle;
+	leveldb::Options options;
+
+	handle = (struct doris_kvhandle *)malloc(sizeof(struct doris_kvhandle));
+	options.create_if_missing = true;
+	leveldb::Status status = leveldb::DB::Open(options, std::string(dir), &(handle->kvdb));
+	if(!status.ok())
+	{
+		free(handle);
+		return NULL;
+	}
+	return handle;
+}
+
+bool doris_kvdb_update_keyint_valint(struct doris_kvhandle *handle, u_int64_t key, int64_t value)
+{
+	leveldb::WriteOptions wop;
+	leveldb::Slice _key((const char *)&key, sizeof(key));
+	leveldb::Slice _value((const char *)&value, sizeof(value));
+	wop.sync = true;
+	leveldb::Status s = handle->kvdb->Put(wop, _key, _value);
+	return s.ok();
+}
+
+bool doris_kvdb_update_keystr_valint(struct doris_kvhandle *handle, const char *key, int64_t value)
+{
+	leveldb::WriteOptions wop;
+	leveldb::Slice _key((const char *)key, strlen(key));
+	leveldb::Slice _value((const char *)&value, sizeof(value));
+	wop.sync = true;
+	leveldb::Status s = handle->kvdb->Put(wop, _key, _value);
+	return s.ok();
+}
+
+int doris_kvdb_delete_keyint(struct doris_kvhandle *handle, u_int64_t key)
+{
+	leveldb::Slice _key((char *)&key, sizeof(key));
+ 	leveldb::Status s = handle->kvdb->Delete(leveldb::WriteOptions(), _key);
+	return s.ok();
+}
+
+int doris_kvdb_delete_keystr(struct doris_kvhandle *handle, const char *key)
+{
+	leveldb::Slice _key((const char *)key, strlen(key));
+ 	leveldb::Status s = handle->kvdb->Delete(leveldb::WriteOptions(), _key);
+	return s.ok();
+}
+
+void doris_kvdb_handle_destroy(struct doris_kvhandle *handle)
+{
+	delete handle->kvdb;
+	free(handle);
+}
+
+int64_t doris_kvdb_get_keyint_valint(struct doris_kvhandle *handle, u_int64_t key)
+{
+	std::string value;
+	leveldb::Slice off_key((const char *)&key, sizeof(key));
+	leveldb::Status s = handle->kvdb->Get(leveldb::ReadOptions(), off_key, &value);
+	if(!s.ok())
+	{
+		return 0;
+	}
+	return *(int64_t *)value.data(); 
+}
+
+int64_t doris_kvdb_get_keystr_valint(struct doris_kvhandle *handle, const char *key)
+{
+	std::string value;
+	leveldb::Slice off_key((const char *)key, strlen(key));
+	leveldb::Status s = handle->kvdb->Get(leveldb::ReadOptions(), off_key, &value);
+	if(!s.ok())
+	{
+		return 0;
+	}
+	return *(int64_t *)value.data(); 
+}
+