摘要： STREAMS机制是操作系统设计和实现中使用的一种重要新技术.本文说明这种机制的主要优点、它的基本结构和工作原理,包括:队列、消息、流首、模块、流量控制和基于流的管理等.

关键词: 操作系统, UNIX, 字符I/O子系统, STREAMS, 流, 流量控制

Abstract: STREAMS mechanism is a new technology, important in designing and implementing an operating system. This paper describes its main advantages, foundamcntal struoture and working principles, including queue, message, stream head, module, flow control and pipe based on stream.