飞机订票系统 说明书飞机订票系统说明书

linux0.02源代码用于研究linux操作系统-linux0.02 source code used to study the linux operating system

rapidemo rapi函数的应用CopyDeviceToPC-Application rapidemo rapi function CopyDeviceToPC

Orange s：一个操作系统的实现（书附源码）chapter5.rar-Orange" s: an operating system implementation (source code attached to the book) chapter5.rar

已移植到TI OMAP1610处理器的Nucleus操作系统源码，并提供了一个Demo的应用程序。-have been transplanted to the TI OMAP1610 processor Nucleus operating system source code, and provide a Demo applications.

一个微型操作系统源码-a micro-source operating system

很好用的DOS工具,可以在XP下面启动到DOS方式 具体内容可以参考代码-n/b

详细讲叙了linux方面的知识，对linux的体系结构，各种知识都做了比较详细的讲解。-讲叙detailed knowledge of linux on the linux architecture, all kinds of knowledge have done a more detailed explanation.

用C语言实现的DOS操作系统的源代码，非常经典，研究操作系统的好资料-C language of the DOS operating system source code, very classic, a good operating system research information

西安电子科技大学操作系统的课件，共分十一章，自己认为很有价值，当然这个适应于本科学生。-Xi" an University of Electronic Science and Technology operating system, courseware, is divided into 11 chapters, they consider valuable, of course, it adapted to undergraduate students.

通过研究Linux的线程机制和信号量实现读者写者(Reader-Writer)问题并发控制。 1)写-写互斥：不能有两个写者同时进行写操作； 2）读-写互斥：不能同时有一个线程在读，而另一个线程在写； 3）读-读允许：可以有一个或多个读者在读； 4）读者优先的附加限制：如果读者申请进行读操作时已有另一个读者正在进行读操作，则该读者可直接开始读操作； 5）写者优先的附加限制：如果一个读者申请进行读操作时已有另一个写者在等待访问共享资源，则该读者必须等到没有写者处于等待状态后才能开始读操作。 -By studying the Linux thread mechanism and semaphores realize readers who write (Reader-Writer) the issue of concurrency control. 1) to write- write mutex: Can not write at the same time there are two write operations 2) read- write mutex: Can not have a thread at the same time in reading and writing another thread 3) Reading- Reading of permit: can have one or more readers read 4) the priority of additional restrictions readers: If the readers apply for a read operation, there was another reader being read, the reader can be directly started reading operation 5) to write additional priority Restrictions: If an application for a reader reading write operation has been in waiting for another visit to a shared resource, the read