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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
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模拟操作系统的存储过程
模拟操作系统的存储过程-simulation of the operating system stored procedure
- 2022-06-17 10:55:22下载
- 积分：1
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在LPC2148上面能够正常运行的UCOS操作系统
在LPC2148上面能够正常运行的UCOS操作系统-In the LPC2148 above the normal operating system running uCOS
- 2022-04-17 21:14:51下载
- 积分：1
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Unix操作系统minix 2.0源码
Unix操作系统minix 2.0源码-Minix 2.0 source Unix operating system
- 2022-06-03 14:31:41下载
- 积分：1
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Optical encoder source code, can refer to! Does the use of AVR
光电编码器源代码，可以参考一下！使用AVR做的-Optical encoder source code, can refer to! Does the use of AVR
- 2022-07-16 20:51:45下载
- 积分：1
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Punch card to work function (work punch card, punch work, administrators can be...
上下班打卡功能（上班打卡，下班打卡，管理员可进行跟换时间打卡，）
-Punch card to work function (work punch card, punch work, administrators can be changed with time, clocking,)
- 2022-11-23 14:20:05下载
- 积分：1
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windos2000流行
WINDOS2000下不需要弹出对话框，直接自动关机或者重新启动-WINDOS2000 pop-up dialog box under no direct automatic shutdown or restart
- 2022-03-25 04:48:17下载
- 积分：1
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注册表监控
一个注册表监控封装类，当监控的注册表键值发生变化，会触发回调事件检索，是一个学习注册表操作非常好的参考。
- 2022-03-30 04:20:22下载
- 积分：1
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北航操作系统课程设计所需源代码，包含window和linux操作系统的各4个试验...
北航操作系统课程设计所需源代码，包含window和linux操作系统的各4个试验-BUAA operating system source code required for curriculum design, including window and linux operating system in all four test
- 2022-06-19 09:38:16下载
- 积分：1
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这是一个操作系统课程设计，能够实现用进程并发中的资源分配方法预防死锁。...
这是一个操作系统课程设计，能够实现用进程并发中的资源分配方法预防死锁。-This is an operating system, curriculum design, can be achieved concurrent with the process of resource allocation methods to prevent deadlock.
- 2022-01-26 04:01:07下载
- 积分：1
