Each connection is for the exclusive use of that one authorized user from a single client device.
每一个连接都专供一个来自单一客户端设备的授权用户使用。
Both use two standard file descriptors on each end of the connection-one exclusive to read and another exclusive to write operations.
它们在连接的两端使用两个标准的文件描述符—一个只执行读操作,另一个只执行写操作。
There can be no concurrent users (the application has exclusive access to the database files), but there are no additional threads nor TCP connection overhead.
不能存在并发用户(应用程序独占地访问数据库文件),但因此也没有额外的线程和TCP连接开销。
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