Then the design of remote system call mechanism is discussed under DSAG environment, and the concept of virtual file descriptor is presented, which could share the file descriptors of Remote Server among multiple client processes effectively.

• 接着本文论述了DSAG环境下远程系统调用机制的设计,提出了一种虚文件描述符的概念,它能够灵活有效地在多个客户进程之间复用服务器Remote Server的文件描述符资源。