-
通过研究Linux的线程机制和信号量实现读者写者(Reader
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
- 2022-02-06 09:26:49下载
- 积分:1
-
GPS源代码,欢迎大家交流 三代GPS芯片
GPS源代码,欢迎大家交流 三代GPS芯片-GPS Firmware
- 2022-01-31 23:35:45下载
- 积分:1
-
于渊《自己动手写操作系统》源代码及相关工具
于渊《自己动手写操作系统》源代码及相关工具-In wiang
- 2022-08-17 03:24:53下载
- 积分:1
-
文章详细分析了核加内核的源代码,希望对大家的研究和分析
这篇文章详细分析了Nucleus PLUS内核的源码,希望对大家有帮助!-The article detailed analysis of the Nucleus PLUS kernel source code, you want to help!
- 2022-01-26 03:40:01下载
- 积分:1
-
操作系统课程设计。包括了源码跟任务报告书。
操作系统课程设计。包括了源码跟任务报告书。-Operating system, curriculum design. Includes the source code with the mission report.
- 2023-05-07 17:00:02下载
- 积分:1
-
A multi
一个多任务实时操作系统,可以运行在arm7tdmi芯片上。带有中断管理、设备管理和LCD控制驱动-A multi-task real-time operating system, you can run in arm7tdmi chip. With disruption management, equipment management and control-driven LCD
- 2022-10-18 09:40:03下载
- 积分:1
-
利用银行家算法避免死锁。掌握银行家算法中的数据结构,算法的整个过程,并加深对银行家算法的理解...
利用银行家算法避免死锁。掌握银行家算法中的数据结构,算法的整个过程,并加深对银行家算法的理解-bankers algorithm used to avoid deadlock. Master bankers algorithm data structure, algorithm of the whole process, and deepen the understanding of Banker"s Algorithm
- 2022-05-13 06:04:26下载
- 积分:1
-
Motion Control VC example demo1001c01w9xw2km02
运动控制VC实例demo1001c01w9xw2km02-Motion Control VC example demo1001c01w9xw2km02
- 2022-06-13 07:03:00下载
- 积分:1
-
页面置换算法 先进先出、最近最久未使用、最佳页面置换算法...
页面置换算法 先进先出、最近最久未使用、最佳页面置换算法-FIFO page replacement algorithms, the recent use of the most long-lost, the best page replacement algorithm for
- 2023-06-21 10:20:03下载
- 积分:1
-
设置窗口启用禁用
提供dll和Demo,通过在labview中对该dll的调用,实现对窗口的禁用和启用,而不需通过窗口句柄获取所有控件再进行启用禁用。版本labview2013
- 2022-01-25 21:57:03下载
- 积分:1