termination

How do I implement graceful termination in Java?

佐手、 提交于 2019-12-05 16:09:19
问题 Say for instance I have my application running in a Linux terminal and I press "CTRL+C" on my keyboard to kill the process it will terminate the Java program. Is there any way to catch this "request" in my Java application so I can shut it down gracefully and release all resources/write logs. I have several different threads running if it makes a difference to the response. I know you have have an addShutDownHook, but as written in the Java documentation, it isn't called under certain

Teach coq to check termination

て烟熏妆下的殇ゞ 提交于 2019-12-04 13:55:35
问题 Coq, unlike many others, accepts an optional explicit parameter,which can be used to indicate the decreasing structure of a fixpoint definition. From Gallina specification, 1.3.4, Fixpoint ident params {struct ident0 } : type0 := term0 defines the syntax. but from it, we've known that it must be an identifier, instead of a general measure. However, in general, there are recursive functions, that the termination is not quite obvious,or it in fact is, but just difficult for the termination

Why is svchost.exe terminating my C# application?

家住魔仙堡 提交于 2019-12-04 11:29:11
For some reason, my C# application is being terminated by svchost.exe and I'm trying to understand why. It was terminating the application silently until I turned on Silent Process Exit logging using Gflags.exe from the Windows Debugging Tools. It happens infrequently on machines that I can't running debugging tools on (customer pcs). The event doesn't really provide me with much info to go on. The termination code is 805306369=0x30000001, but I can't seem to find anything useful online that would tell me how to interpret that number. I was hoping that the Silent Process Exit log would shed

What happens if there is no exit system call in an assembly program?

蹲街弑〆低调 提交于 2019-12-04 08:18:29
In an assembly program, the .text is loaded at 0x08048000 . The .data and .bss section comes after that. What would happen if I didn't put an exit syscall in the .text section? Would it lead to the .data and .bss being interpreted as code causing "unpredictable" results? When will the program terminate - probably after every "instruction" is executed? I can easily write a program without the exit syscall but of testing if .data and .bss would get executed is something I still don't know because I guess I would have to know the real machine code that is generated under-the-hoods to mock that. I

How do I implement graceful termination in Java?

≡放荡痞女 提交于 2019-12-04 01:25:22
Say for instance I have my application running in a Linux terminal and I press "CTRL+C" on my keyboard to kill the process it will terminate the Java program. Is there any way to catch this "request" in my Java application so I can shut it down gracefully and release all resources/write logs. I have several different threads running if it makes a difference to the response. I know you have have an addShutDownHook, but as written in the Java documentation, it isn't called under certain circumstances, like the kill signal from "CTRL+C" in linux...are there any other ways? Runtime.getRuntime()

Teach coq to check termination

Deadly 提交于 2019-12-03 20:48:27
Coq, unlike many others, accepts an optional explicit parameter,which can be used to indicate the decreasing structure of a fixpoint definition. From Gallina specification, 1.3.4, Fixpoint ident params {struct ident0 } : type0 := term0 defines the syntax. but from it, we've known that it must be an identifier, instead of a general measure. However, in general, there are recursive functions, that the termination is not quite obvious,or it in fact is, but just difficult for the termination checker to find a decreasing structure. For example, following program interleaves two lists, Fixpoint

Why shouldn't I use Process.GetCurrentProcess().Kill() to exit my WinForm application?

核能气质少年 提交于 2019-12-03 09:40:33
Right now, when the user want to exit my application, I do the few things I have to (ie disconnecting from the server, saving the user data...) and then I do the following : Exit all my mainloops using booleans abort the threads still running (typically, my server polling thread) kindly call Application.Exit(); This takes a few seconds to exit, and serves no real purpose (everything is already saved on the server, so I don't really care what happens there) If I use this instead, I got instant termination with no drawback I can think of : System.Diagnostics.Process.GetCurrentProcess().Kill();

Handling abnormal Java program exits

我们两清 提交于 2019-12-03 08:43:12
Suppose I have a Java application that opens a database connection. Normally I would add a connection.close() in a finally block, but this block wouldn't be executed in the case of a kill operation, or any other abnormal termination, would it? Are there any other precautions that I, as a programmer, can make in order to close the connection properly before the application exits? Chris Dail You should look at the Runtime.addShutdownHook() method for Java ( http://java.sun.com/javase/6/docs/api/java/lang/Runtime.html#addShutdownHook(java.lang.Thread) ). It allows you to add a hook that will be

Kubernetes Nginx: How to have zero-downtime deployments?

匆匆过客 提交于 2019-12-03 01:04:50
I am attempting to have a kubernetes nginx deployment with zero downtime. Part of that process has been to initiate a rollingUpdate, which ensures that at least one pod is running nginx at all times. This works perfectly well. I am running into errors when the old nginx pod is terminating. According to the kubernetes docs on termination , kubernetes will: remove the pod from the endpoints list for the service, so it is not receiving any new traffic when termination begins invoke a pre-stop hook if it is defined, and wait for it to complete send SIGTERM to all remaining processes send SIGKILL

issue with terminating through -1

纵饮孤独 提交于 2019-12-02 23:03:43
问题 I need to use -1 to terminate but still display the summary. Every time that I've tried and have gotten it to terminate the program, it doesn't go ahead and display the summary. There are up to 10 trials, if you don't have enough information for 10 and you want to stop at 8, you type -1 and it goes to the summary and then terminates the program while(i<10) { do { cout << "Enter result """ << i+1 << """ (or -1 if no more results): "; cin >> score[i]; if(score[i] >=0 && score[i] <=49) { cout <<