ontopic | Display SNS messages on your terminal | AWS library
kandi X-RAY | ontopic Summary
kandi X-RAY | ontopic Summary
ontopic let's you listen to SNS notifications from your command line. It does so by creating an SQS queue subscribed to the topic and polling it. Before the process exits the created resources are removed. You must have your AWS account correctly configured on your machine for ontopic to work.
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QUESTION
I'm working through some homework, and I need to report which system calls a C program makes use of.
I noticed though that exit
doesn't show up in strace
reports.
ANSWER
Answered 2020-Jun-07 at 17:57For some reason it doesn't show up in the -c
summary but it does show up in the regular strace
output:
QUESTION
broker.onTopic = function onTopic(topic: string, callback: Function): void {
log.debug(`Callback to add: ${JSON.stringify(callback, null, 4)}`);
//...more code
...ANSWER
Answered 2019-Sep-02 at 13:36Because JSON.stringify
omits the functions by default.
See JSON.stringify function to find a way to handle the function. Basically, you need to use a replacer function to customize the "stringifying" process.
QUESTION
I'm investigating an issue where a (Unity-based) application hangs with an AppHangB1 event after several hours of runtime, and needs to be killed manually. Unfortunately, this application is supposed to run for over 12 hours, continuously, in an unattended setup.
We have managed to create a .dmp file from it's "hanging" state using DebugDiag, and are now trying to make sense of the contents. The first thing that jumps out to me is this:
Looks to me like the main thread is sleeping. Something a main thread is never supposed to do in my book, because it will prevent the app from responding to windows messages. I am assuming this could be the direct cause of the AppHangB1.
If someone could confirm whether this assumption is generally correct, and if not, why, that would be great!
Extra info: memory usage and handle count of the process are stable. General and specific pointers on how to tackle this particular issue are of course welcome, but to keep the question ontopic I'd just like to focus on the sleep in the main thread we are seeing here.
...ANSWER
Answered 2017-Dec-01 at 07:38I don't want to leave this question in limbo, so here is my take. If any other answers come along from more knowledgable people I'll glady mark those in stead.
- No, a sleep on the main thread is not necessarily a bad thing. The time limit for Windows "Application Hung" detection is 5 seconds, there is lots of code that does tiny sleeps for various reasons. One of those is a 0-millisecond sleep that just relinquishes the time slice.
- However, it can be a strong indicator of a problem if multiple AppHang crash dumps show the main thread in the exact same sleeping state.
In this particular case, the dumps always showed a sleep inside msmpeg2vdec.dll, the Windows MPEG2 video codec as used by the popular AVPro plugin we use for video playback. We switched video formats for all the videos, and now the application no longer hangs.
QUESTION
I am trying to Mock an amazon services object to perform UnitTesting on a related code. I have done it as follows but each time the init is hit it crashes with error failed:
caught "NSInternalInconsistencyException", "
- init
is not a valid initializer
Normally the same object will be created using there factory method, so it seems the initializer is made private or something. How can such object be mocked ?
...ANSWER
Answered 2017-Sep-02 at 07:12You must call the designated initializer of AWSIoTDataManager
inside your init
call and remove the override
decorator. That is why you got the error.
You can not mock something by subclassing it. With Swift, mocks are usually provided through a shared protocol. Define a protocol for the interface that you use from the third party library. Create an empty extension on the library with your protocol (there should be no code needed). Then implement a mock object against the protocol for use in your tests.
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