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进程是程序在一个数据集合上运行的过程,进程是并发进行的,也即系统中的多个进程轮流的占用处理器运行。
我们把若干个进程都能进行访问和修改的那些变量称为公共变...
进程是程序在一个数据集合上运行的过程,进程是并发进行的,也即系统中的多个进程轮流的占用处理器运行。
我们把若干个进程都能进行访问和修改的那些变量称为公共变量。由于进程是并发执行的,所以,如果对进程访问公共变量不加限制,那么就会产生“与时间有关”的错误,即进程执行后,所得到的结果与访问公共变量的时间有关。为了防止这类错误,系统必须要用同步机构来控制进程对公共变量的访问。一般说,同步机构是由若干条语句――同步原语――所组成。本试验要求学生模拟PV操作同步机构的实现,模拟进程的并发执行,了解进程并发执行时同步机构的作用。
-process is a procedure in the data set to run the process, the process is conducted with the system that is the rotation process more than the occupier runs. We have a number of process can visit and revision of those variables as public variables. As the process is complicated by the implementation, so if the right to visit public process variables without restrictions, it will have a "Time" is wrong, the implementation process, the results obtained with the public to visit the variables of time. To prevent such mistakes, the system must be used to control synchronization process bodies for public variables visit. In general, synchronous bodies of a number of statements-- synchronization primitives-- composed. Th
- 2023-01-24 21:05:04下载
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利用PIC16F877卡片做仿真卡的文件,中文菜单。
利用PIC16F877卡片做仿真卡的文件,中文菜单。-PIC16F877 card use simulation to do the paper cards, Chinese menu.
- 2023-06-19 01:15:04下载
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一个更完善的财务管理系统,操作简单,功能齐全
一个比较完整的财务管理系统,操作简单,功能比较完整-A more complete financial management system, easy operation, complete function
- 2022-02-05 20:40:53下载
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C++沉思录,一本由老外写的关于C++编程心得的书籍。比较经典,是初学者必看的一本书...
C++沉思录,一本由老外写的关于C++编程心得的书籍。比较经典,是初学者必看的一本书-C++ Meditation, one written by a foreigner on the C++ Programming experience books. Comparison of the classic is a must-see for beginners book
- 2022-01-25 19:42:19下载
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为了提取条纹图案的相位,从条纹的强度数据…
To extract the phase of a fringe pattern, the intensity data from the fringe pattern is applied to the 1D-CWT algorithm on a row by row basis.
- 2023-05-20 18:40:03下载
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LAN storage tools for user
方便易用的局域网存储工具 内附所有源码 资源文件 -LAN storage tools for user-friendly resource files included all the source code
- 2022-01-30 16:43:56下载
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A total of 26 chapters, many of the Windows internal mechanism has a very good a...
共26章,对Windows的许多内部机制有很好的剖析-A total of 26 chapters, many of the Windows internal mechanism has a very good analysis
- 2022-01-26 00:55:35下载
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此程序为硬件EDA编程,实现了十位的计数器功能,在平台中可以模块化应用...
此程序为硬件EDA编程,实现了十位的计数器功能,在平台中可以模块化应用-This procedure EDA hardware programming, implementation of the counter 10 functions in a modular application platform can be
- 2022-03-11 22:39:10下载
- 积分:1
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Windows Mobile development document
Windows Mobile development document
- 2022-05-23 21:13:11下载
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C sharp 访问 Excel,无须COM控件
C sharp 访问 Excel,无须COM控件-C sharp visit to Excel, no need for COM controls
- 2022-03-04 04:38:17下载
- 积分:1