manualresetevent

问题 I have read the documentation on this and I think I understand. An AutoResetEvent resets when the code passes through event.WaitOne() , but a ManualResetEvent does not. Is this correct? 回答1: Yes. It's like the difference between a tollbooth and a door. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through. 回答2: Just imagine that the AutoResetEvent

问题 I have read the documentation on this and I think I understand. An AutoResetEvent resets when the code passes through event.WaitOne() , but a ManualResetEvent does not. Is this correct? 回答1: Yes. It's like the difference between a tollbooth and a door. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through. 回答2: Just imagine that the AutoResetEvent

问题 I am not sure which strategy to adopt...I am focusing on my operation getting completed, but I'd also like to keep performance issues to a min too...there is a method called Execute() which has to wait (run synchronously) until an operation completes. This operation happens on another thread. There are 2 ways to implement the same thing... By using ManualResetEvent void Execute() { taskHandle = new ManualResetEvent(false); . . //delegate task to another thread . . taskHandle.WaitOne(); } OR

问题 I feel like I should know the answer to this, but I'm going to ask anyway just in case I'm making a potentially catastrophic mistake. The following code executes as expected with no errors/exceptions: static void Main(string[] args) { ManualResetEvent flag = new ManualResetEvent(false); ThreadPool.QueueUserWorkItem(s => { flag.WaitOne(); Console.WriteLine("Work Item 1 Executed"); }); ThreadPool.QueueUserWorkItem(s => { flag.WaitOne(); Console.WriteLine("Work Item 2 Executed"); }); Thread

问题 I implemented the following background processing thread, where Jobs is a Queue<T> : static void WorkThread() { while (working) { var job; lock (Jobs) { if (Jobs.Count > 0) job = Jobs.Dequeue(); } if (job == null) { Thread.Sleep(1); } else { // [snip]: Process job. } } } This produced a noticable delay between when the jobs were being entered and when they were actually starting to be run (batches of jobs are entered at once, and each job is only [relatively] small.) The delay wasn't a huge

问题 Specifically, I'm wondering: Will the ManualResetEvent consume resources while it is in a wait state? Does the performance degradation of context switching apply to threads that are in a wait state? If I have a choice to use multiple BackgroundThreadQueues that do less work each, or one BackgroundThreadQueue that does more work, and I choose to use multiple...will the waiting thread queues affect process performance while they are not doing anything? Is there a better FIFO thread queue I

问题 i want to implement pause resume and cancel functionality with BackgroundWorker. i have a one user control and all backgroundworker related code written in user control. i just add user control on flow layout control as many as time user click on buttons. i am fail to impelement Pause & Resume functionality with ManualResetEvent but anyway i am not being able to do it. so here i am pasting my user control class related code and my form code. public partial class ucBackgroundWorker :

问题 To start off with, this might be tagged as a duplicate of the following thread: Wait for HttpWebRequest.BeginGetResponse to finish in Windows Phone 7, however, the responses in that thread did not help me get over my problem. To begin with, I am collecting user data on the UI Thread in order to process application registration, where I also have an instance of ManualResetEvent: private static ManualResetEvent registrationEvent = new ManualResetEvent(false); I have another thread which handles

问题 what happens if a manual-reset event is set using setEvent but not reset using ResetEvent; and that event is triggered multiple times.i.e. while the event is getting processed, again the event is set. following is the sample task: void foo() { ... SetEvent(hEvent1); ... } void foo1() { ... SetEvent(hEvent2); ... } int MainHandler() { ... dwEvent = WaitForMultipleObjects(2, ghEvents, // array of objects FALSE, // wait for any object 5000); switch(dwEvent) { case hEvent1: //do something break;

问题 I'm trying to implement a class which uses a simple cache for holding data retrieved from an internal service. I'm using a ManualResetEvent to block multiple threads which may try to refresh the cached data at the same time with the first thread to succeed signalling the others to proceed once the data has been retrieved by calling Set() and then Reset(). When testing I've noticed that sometimes all of the threads are released and sometimes 1 or more are not and are left to time out, almost