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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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Micorsoft 卡片文件(crd)读写的DLL源码
Micorsoft 卡片文件(crd)读写的DLL源码-The sourcecode of the DLL for reading and writing the Microsoft s card file
- 2022-05-22 06:21:12下载
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This is a very useful code viewer, you can easily find the definition of a funct...
这是一款非常好用的代码查看器,很容易找到你所定义的函数或者变量的定义、-This is a very useful code viewer, you can easily find the definition of a function or variable definition,
- 2023-08-21 04:10:05下载
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Bezier曲线的可执行程序,注:vc语言编写的;3次4个顶点
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- 2022-01-31 22:49:13下载
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mfc中的源码,可以方便大家参考,学习,希望有机会大家一起交流!...
mfc中的源码,可以方便大家参考,学习,希望有机会大家一起交流!-mfc in source can convenient your reference, learning, hope have the opportunity together exchanges!
- 2022-10-10 10:55:03下载
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系统调用提供的简单控制
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- 2022-11-07 03:15:03下载
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doing crossword puzzles is a game he has a certain level is not one of the proce...
猜字游戏是一个游戏 他有一定的水平是一个不可多的的程序-doing crossword puzzles is a game he has a certain level is not one of the procedures
- 2022-02-02 02:35:39下载
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人脸识别登陆windows系统的相关代码.
人脸识别登陆windows系统的相关代码.-Face Recognition System landing windows related code.
- 2022-03-20 10:43:15下载
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用风险投资实现的窗口系统,附带的基本功能…
用VC实现的window系统自带的那个计算器的基本功能-With VC realize the window system that comes with the basic functions of the calculator
- 2022-01-26 02:51:54下载
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ASP财务管理源码 ASP财务管理源码
ASP财务管理源码 ASP财务管理源码-ASP财务管理源码ASP财务管理源码ASP财务管理源码
- 2022-03-06 06:11:50下载
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