pcs | Pacemaker command line interface and GUI

I'm working on a B2B ordering app with a special deal pricelist based on the customer. The pricelist can have a set price (UnitPrice) OR a discount percentage (DiscountPercentage), not both, for certain stock items. Each product also have a standard price (SellingPrice) that should be used if no discount is applicable.

In the controller, I create a collection consisting of the product code, normal selling price, discount percentage and unitprice, for eg.

Why introduction text was overlaid by the profile image when the browser was scaled down to 650px? They suppose to show in 100% width at 650px screen. I did adjust the position of .speakers-info from absolute to relative, it seems solved the overlay problem but then all position setting got messed. Please see the code as below and advise how to solve it, thank you!

Screenshot: the introduction text was overlaid by the image

As we know, xv6 doesn't let a spinlock be acquired twice (even by a process itself).

I am trying to add this feature which lets a process to acquire a lock more than once. In order to reach this, I am adding an attribute called lock_holder_pid to the struct spinlock which is supposed to hold the pid of the process which has acquired this lock.

The only file I have changed is spinlock.c

Here is my new acquire() function:

We have a code in production that in some situation may left-shift a 32-bit unsigned integer by more than 31 bits. I know this is considered undefined behavior. Unfortunately we can't fix this right now, but we can work this around, if only we can assume how it works in practice.

On x86/amd64 I know processor for shifts uses only the appropriate less-significant bits of the shift count operand. So that a << b is in fact equivalent to a << (b & 31). From the hardware design this makes perfect sense.

My question is: how does this work in practice on modern popular platforms, such as arm, mips, RISC and etc. I mean those that are actually used in modern PCs and mobile devices, not outdated or esoteric.

Can we assume that those behave the same way?

EDIT:

1. The code I'm talking about currently runs in a blockchain. It's less important how exactly it works, but at the very least we want to be sure that it yields identical results on all the machines. This is the most important, otherwise this can be exploited to induce a so-called chain split.

2. Fixing this means hassles, because the fix should be applied simultaneously to all the running machines, otherwise we are yet again at risk of the chain split. But we will do this at some point in an organized (controlled) manner.

3. Lesser problem with the variety of compilers. We only use GCC. I looked at the code with my own eyes, there's a shl instruction there. Frankly I don't expect it to be anything different given the context (shift operand comes from arbitrary source, can't be predicted at compile time).

4. Please don't remind me that I "can't assume". I know this. My question is 100% practical. As I said, I know that on x86/amd64 the 32-bit shift instruction only takes 5 least significant bits of the bit count operand.

How does this behave on current modern architectures? We can also restrict the question to little-endian processors.

I'm currently analysis how users will get authenticated in a new application we're developing and we're looking forward to use Azure AD B2C. There is however one special scenario that I need to cover but so far I didn't get anything interesting.

Here is the scenario:

A user needs to authenticate in the application using 2 different ways:

1. Usual username / password
2. Barcode scanning (for username) / PIN (for password)

The second scenario is basically to be used with touch screens where the user doesn't have a physical keyboard and needs to be authenticated easily without having to type a complex password.

A single user may have to use both ways depending on where he works. On some workstations (PCs + keyboard), the usual username / password will be used and some others (touch screen only) they will use the barcode and PIN. Note: The barcode content will be the username.

One idea would be to duplicate the user and link them using a custom user attribute. At the signin time, we would have 2 different user flows depending on if this is a usual workstation or touch screen. However I think this is not the ideal solution since we will have to manage both users as one and that may add some management complexity.

In the end, it might sounds strange but we need to have a user with two different passwords. The password to use would depend on a specific user flow (or custom policies?).

Anyone knows if there is a build-in way to achieve this or have any other ideas? Thanks!

I am using a form repeater but my goal is to have multiple repeaters to use it on my project. I tried to search on different forums but I didn't get positive result to follow. my current code only repeats for the first div only i.e. targetDiv one and doesn't repeat for the second div

I want to repeat all divs targetDiv

jsFiddle https://jsfiddle.net/infohassan/qbontgj6/2/

Here is my HTML

I have 2 development PCs, both have following specification:

• Windows 10 1909 64 bit
• Installed Oracle JDK 1.8.0_281-b09
• Eclipse IDE for Java Developers 2020-12 (4.18.0)

The application under development is a Spring Boot project with following Maven file:

I have a chatbots (5 pcs) running on testbed cloud server. They all work perfectly in HTTP mode but no I need to change to HTTPS mode and there the problem started. I can get HTTPS working easily but then the chatbot widget doesn't work any more.

My environment:
Chatbot engine: Rasa 2.2 in docker 20.10.6 container
Chatbot widget: Botfront webchat 0.11.12
Web server: Nginx 1.14.0
Server: Ubuntu 18.04

I don't know even what is right way and after banging my head for a week and trying different ways, now I suppose I need to set up Nginx reverse proxy. I think that the problem is websocket between rasa and webchat.

This is how I start one chatbot

docker run --name=sakky --user 1003 -v $(pwd):/app -p "5006:5005" rasa/rasa:2.2.0-full run -m models --enable-api --cors "*" --debug

Here are my config files Index html