我的Delphi应用程序在Windows下运行,需要加以阻挡,直到另一个校对已经提供数据。 换言之,我需要等待一个同步的物体,即从某个特定表面上我能够进入<>未签署的国家,就像另一个透视者拥有该物体,这样,当我称之为WaitFor()时,th区直到另一个胎圈之一(其位置是能够unblock<<>>/em>的不止一个潜在read子,而且不知在上面。 请注意,所有线索都可以进入一个共享的数据区,因此获得共同同步物体并非问题。
我想Events是正确的选择,直到我阅读了雷蒙·陈关于PulseEvent(以下简称“PulseEvent”)问题的这一令人不安的博客的话:
实现这一结果的正确同步技术是什么? 如果你与“德尔菲”或“C/C++”这一伟大的例子有联系。
事件完全是罚款的,只是不使用PulseEvent。 微软不仅毫无希望地控制了执行工作,而且由于其固有的种族条件,其使用也变得复杂。 如果事件发生在事件发生之前,事件就会消失。 相反,使用人工重建活动。
封锁:
B1) 确定阻止活动。
B2)检查,以确保事件尚未发生,并确保你希望阻止。 必要时,将这一活动放在一个共享的数据结构中,使我们了解情况。
B3)活动区。
催复:
W1) 更新共享数据,以反映事件发生的事实。
页: 1 必要时,推翻共享数据结构,揭开所有与任何事情相关的事件。
这里没有种族条件。 如果事件发生在B1或B2之后,但在B3之前,B3的区块由于W2将拆卸而实际上赢得了路障。 如果该事件发生在W1之前,那么由于B2会看到W1的影响,我们永远不会去B3。
在大多数情况下,B2和W2号业务需要做,与此同时,处理这类事件的所有线索要24小时。
正当使用自动启动活动。 见创作功能参数。 你们将需要为每一线人举办一个需要等待的活动。 Just calls SetEvent, and no other functions such as PulseEvent or ResetEvent. 瓦伊特森林公司将自动重新启动活动。 如果在你打电话给WaitFor之前就已安排了这次活动,那将立即返回,重新确定活动。
I am trying to find out the difference between difference service account types. I tumbled upon this question. The answer was because it has powerful access to local resources, and Network Service ...
Does anyone know how to programatically detect that a Windows server is part of a cluster? Further, is it possible to detect that the server is the active or passive node? [Edit] And detect it from ...
I ve read Get File Icon used by Shell and the other similar posts - and already use SHFileInfo to get the associated icon for any given extension, and that works great. However, Outlook uses ".msg" ...
How can I create an empty file at the DOS/Windows command-line? I tried: copy nul > file.txt But it always displays that a file was copied. Is there another method in the standard cmd? It should ...
I know about the GetLastInputInfo method but that would only give me the duration since last user input - keyboard or mouse. If a user input was last received 10 minutes ago, that wouldn t mean the ...
My application creates a thread and that runs in the background all the time. I can only terminate the thread manually, not from within the thread callback function. At the moment I am using ...
Yes, I know, the archive bit is evil. That being said, is there support for querying it with find , and modifying it with chmod ? My googling has turned up nothing......
I built a Java application that is delivered on USB sticks. To ensure compatibility, I ship an appropriate JVM on the sticks. I made an EXE that simply invokes this JVM with the application jar. Now ...
