Vedis 是一个可嵌入式的数据存储的 C 库，包含跟 Redis 类似的超过 70 个命令支持，但没有网络层支持，只是提供进程内的应用访问。
特点：
Serverless, datastore engine.
Transactional (ACID) datastore.
Built with over 70 commands similar to the standard Redis commands.
Zero configuration.
Single database file, does not use temporary files.
Cross-platform file format.
Standard Key/Value store.
Support for on-disk as well in-memory datastore.
Thread safe and full reentrant.
Simple, Clean and easy to use API.
Support Terabyte sized databases.
