loophole | Polar devices Python API and CLI | REST library
kandi X-RAY | loophole Summary
kandi X-RAY | loophole Summary
Python API for Polar devices. Command line interface included. Tested with: * A360 * Loop * M400.
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Top functions reviewed by kandi - BETA
- Put data to the device
- Print information about the device .
- List Polar Devices .
- Generate a dictionary of entries .
- Create a Pftp operation .
- List a directory
- Send a request to the device .
- Check if the device is connected .
- Set packet data
- List devices .
loophole Key Features
loophole Examples and Code Snippets
Community Discussions
Trending Discussions on loophole
QUESTION
ANSWER
Answered 2022-Mar-01 at 11:21In your code
QUESTION
While working with glibc I tried to reduce the data segment using sbrk using a negative parameter, and found a most strange behaviour.
I first malloc
, then free
it, then reduce data segment with sbrk
, and then malloc
again with same size as the first one.
The issue is, if the malloc
size (both malloc
s with same size) is small enough (32k, or eight 4k pages) then everything works fine. But when I increase a little the malloc
-free
-malloc
size (to nine 4k pages) then I get the core dump. What is even more strange is that when I raise the malloc
size to cross the mmap
threshold (128k) then I get the adjust-abort behaviour.
The C code:
...ANSWER
Answered 2022-Jan-09 at 21:44It is well-documented that glibc malloc
uses sbrk
internally. Absent a statement that says otherwise, it can also use memory obtained with sbrk
for internal bookkeeping purposes. It is neither documented nor guessable where exactly this internal bookkeeping data is stored. Thus, taking away any memory obtained by malloc
(via sbrk
or otherwise) can invalidate this data.
It follows that sbrk
with a negative argument should never be used in a program that also uses malloc
(and of course any library function that might use malloc
, such as printf
). A statement to this effect probably should have been included in the glibc documentation, to make the reasoning above unnecessary. There is a statement that cautions against the use of brk
and sbrk
in general though:
You will not normally use the functions in this section, because the functions described in Memory Allocation are easier to use. Those are interfaces to a GNU C Library memory allocator that uses the functions below itself. The functions below are simple interfaces to system calls.
If you want to release unused memory at the end of the glibc malloc
arena, use malloc_trim()
(a glibc extension, not a standard C or POSIX function).
QUESTION
My Main goal is to create an Electron App (Windows) that locally stores data in an SQLite Database. And because of type safety I choose to use the Prisma framework instead of other SQLite Frameworks. I took this Electron Sample Project and now try to include Prisma. Depending on what I try different problems do arrise.
1. PrismaClient is unable to be run in the BrowserI executed npx prisma generate
and then try to execute this function via a button:
ANSWER
Answered 2021-Sep-13 at 11:04I finally figured this out. What I needed to understand was, that all Electron apps consist of 2 parts: The Frontend Webapp (running in embedded Chromium) and a Node backend server. Those 2 parts are called IPC Main and IPC Renderer and they can communicate with each other. And since Prisma can only run on the main process which is the backend I had to send my SQL actions to the Electron backend and execute them there.
My minimal exampleIn the frontend (I use Angular)
QUESTION
I am trying to create an architecture where every deployment deploys with a cluster IP and the rule get automatically added to the ingress rule as a new path.
My initial thinking was to give the Deployment
a ServiceAccount
that has access to manage ingress rule and before the main pod would run, an init container would fetch the YAML and add the ruleset, while deleting maybe delete that as well?
But the more I think about it, more loopholes start coming to mind. For eg: What happens when 2 Deployment
's start at the same time?
and things like that.
Any idea on how to tackle this would be appreciated.
My background: I am a cloud engineer trying to shift to DevOps, have beginner-intermediate level knowledge of Kubernetes.
...ANSWER
Answered 2021-Sep-18 at 11:54Few options: Init container (You figured this one out and mentioned it in your question)I am trying to create an architecture where every deployment deploys with a cluster IP and the rule gets automatically added to the ingress rule as a new path.
- ADd init container to your Deployment which will add the desired rule to your Ingress
- Add a post-start probe which will be executed once your pod is running and kicking will update the Ingress rules
- Add a CronJob which will "scan" for changes and will update the Ingress again
QUESTION
I have a collection of texts which are organised in a data frame in the following way:
I would need such texts to be organised in the following way
I have been through a lot of previous questions here, but all merging suggested includes calculations, something which is not the case here. I have also consulted Tidytext package but did not seem to find a function to merge text in this way.
Any help is appreciated.
EditA pice of the actual data frame would be:
...ANSWER
Answered 2021-Sep-16 at 17:41We can use
QUESTION
I want to push the footer to the bottom of the page and since the page doesn't have much content the footer floats up and doesn't move to the bottom.
I tried positioning my footer as a fixed element as a workaround and it works but it doesn't in this condition:
In this dimension the footer behaves like you see and it is perfectly expected, hence showing a loophole in my workaround.
This is the website's address: https://n-ii-ma.github.io/Portfolio-Website/contact.html
These are the codes for that part:
...ANSWER
Answered 2021-Sep-16 at 19:00Simple solution that is fully supported is to use Flexbox.
- We give the body a
min-height: 100vh
so it spans at least the entire viewports height. - The default margin of the body will make the page overflow by default. To counter that, we need to reset the margin with:
margin: 0
- We re-add a padding. The default margin of most browsers is 8px. SO I chose that. You can take what ever you like.
- The padding will also cause an overflow because of the box-modell. To counter that we use:
box-sizing: border-box
- Then we use flexbox:
display: flex
. - To maintain the normal block-level behavior we use:
flex-direction: column
- To push the footer at the bottom we use:
margin-top: auto;
. That will push the footer to the bottom of the page if the page content is less then the viewport height.
QUESTION
Below is a service with set of 3 Go-routines that process a message from Kafka:
Channel-1 & Channel-2 are unbuffered data channels in Go. Channel is like a queuing mechanism.
Goroutine-1 reads a message from a kafka topic, throw its message payload on Channel-1, after validation of the message.
Goroutine-2 reads from Channel-1 and processes the payload and throws the processed payload on Channel-2.
Goroutine-3 reads from Channel-2 and encapsulates the processed payload into http packet and perform http requests(using http client) to another service.
Loophole in the above flow: In our case, processing fails either due to bad network connections between services or remote service is not ready to accept http requests from Go-routine3(http client timeout), due to which, above service lose that message(already read from Kafka topic).
Goroutine-1 currently subscribes the message from Kafka without an acknowledgement sent to Kafka(to inform that specific message is processed successfully by Goroutine-3)
Correctness is preferred over performance.
How to ensure that every message is processed successfully?
...ANSWER
Answered 2021-Sep-09 at 11:34To ensuring correctness you need to commit (=acknowledge) the message after processing finished successfully.
For the cases when the processing wasn't finished successfully - in general, you need to implement retry mechanism by yourself.
That should be specific to your use-case, but generally you throw the message back to a dedicated Kafka retry topic (that you create), add a sleep and process the message again. if after x times the processing fails - you throw the message to a DLQ (=dead letter queue).
You can read more here:
https://eng.uber.com/reliable-reprocessing/
https://www.confluent.io/blog/error-handling-patterns-in-kafka/
QUESTION
I know uploads can be done to Azure Blob storage using SAS keys.
This works perfeclty fine in react
...ANSWER
Answered 2021-Aug-20 at 03:58You can refer this documentation to setup AAD for your application and then have a look at THIS documentation which shows how to setup your BlobServiceClient with these credentials. HERE is an example from Github.
Another method is using the rest APIs. You can authenticate on Azure Active directory first LINK to get a token. Pass this as bearer token in the Putblob rest api call.
QUESTION
I have a list of sets, ss, and want to test whether a 'test' meets the condition:
For each set in ss, there must be at one element in the set present in 'test'.
The code is below:
...ANSWER
Answered 2021-Jul-16 at 21:29That looks fine to me, since looking at the code conveys its meaning well. What I would suggest is that you avoid the double not
though:
QUESTION
So I have the below function and here is what I'm attempting to do:
I have a lot of if/else statements, can somebody review the code and tell me if I can shorten them and return early? All help will be appreciated!
Each piece in there is critical, but I wanted to see if there was a way to have only one if statement (2 maximum) without having a loophole for a possible debug error.
Here is the code:
...ANSWER
Answered 2021-May-03 at 01:59Just negate (logically) your if
conditions so that you can return early.
For the first if
it would be:
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