salvo | simplest web server framework in Rust world | HTTP library

for my project I have implemented a graphical interface that interfaces with wearable sensors. I wrote a code (multi.py) that interfaces directly with 3 sensors. then I wrote some code for the graphical interface (GUI.py) which calls me different portions of multi.py when I click the buttons.

when I call "configure_clicked ()" and "download_clicked ()" form respective button the GUI freezes (continuing to work), because functions are called (multi.configure & multi.download ) that take some time to finish (connecting to devices and downloading data from devices). I know that I have to do another "thread"--> MULTITHREAD. please,Can anyone help me to create a multithread???

I also have "PROGRESS BAR" which should start at the start of each function but this does not happen for "configure_clicked ()" and "download_clicked ()", while I manage to slide it between "start_clicked" and "stop_clicked".

I am attaching the code. thank in advance whoever will help me.

How can I generate some random cards with numbers, but I need manipulate them as a 3 dimenson matrix . [players][n][n] .. n = The dimenson

My program generates only one card, how can I generate more cards? The index of the cards will be set in the variable players( jogadores in the program) that is the first dimension of the Matrix

i'm new in this type of coding and i'm trying to do some test executing bare-metal software for Cortex-A processors. I have experience with Cortex-M MCU and i compiled code with an IDE like ARM-Keil and with SDK by Nordic for some BLE jobs. Now i want to try to understand better the world of Cortex-A and i would learn coding in a bare-metal way, starting from some examples that i found online. I had some experiences with freeRTOS with Cortex-M, so i found online some git repository from some good guy that makes a porting of freeRTOS for RaspberryPI and BeableBoneBlack. From now on i will just explain my problem for the BeableBoneBlack, beacouse for the RaspberryPI it's similar.

I'm on linux, i installed gcc-arm-none-eabi compiler, so i cloned the BeagleBone Black with freeRTOS repository from this link.

I usually use VS Code to write code, so in the integrated terminal when i run the command make everything it's working and the of my BBB flashes correctly. So now i would like to improve my code, and in order to do some tests i would like to use the rand() function, from stdlib.h. Unhappily I find that there are some errors: undefined reference to rand. The last months, before doing tests with the BBB, i found other repos for RPi2 and i learn something about the linker of the arm-none-eabi compiler, that needs the addition of some parameters in order link library files during the process. From this repo now i have two files: makedefs_ti and makefile. Opening the make file i found in line 26-27 the part of the generation of the file app, so where the linker is called. In this lines there are references to LIB_GCC and LIB_C, which are defined in the makedefs_ti. In lines 49-50 there are the references to the directory where the compiler is installed (I changed 4.7.3 with the correct one installed on my linux pc that is 9.2.1). In the makefile, after -L$(LIB_C), if i add the linker parameters like -lc or -lg and try to recompile, i had error like arm-none-eabi-ld: cannot find -lc. With some understanding from online resources i modified the the makedefs_ti as following:

I'm new to system multiprogramming.

I managed to create a pipe which allows father and child to talk. The child writes the position of the sprite, while the father writes it on the console using the ncurses library.

I've been trying to run a reverse proxy to manage a graph of Grafana in an iframe. I'm using Apache on port 80 with the html page, Grafana server on port 3000 and Nginx with the reverse proxy on 8081.

The problem is that the proxy gives me a 404 error when I try to access the contents of the iframe. To test everything, I tried a local Grafana server configuration and a remote server configuration with 2 different iframes. The one connected to the local Grafana gives me a generic error of Grafana and a 404 when uploading the file, the remote one only 404.

Obviously each link taken individually works if I insert it on the browser, and without using the proxy it works the same way on the iframe.

I am not an Nginx expert and there will probably be some errors in the configuration. As a configuration file I'm using the Nginx default.conf file, so I haven't touched the nginx.conf because I don't think I need it for this purpose.

index.html

I would like two users to challenge each other to be able to use reactions so if you can only have one command to use. Using the command tfo @user I would like you to send a private message to the user with the possibility of clicking one of the two reactions to accept or reject the challenge having a time limit that in case it is not executed in time cancels the challenge request and will send another private message (to both of you).

I know that to do this I should use await client.wait_for but I don't know how to use it for reactions.

This is the code I used for the version against the bot

I'm trying to check if there is a value in the shared preference, if not, an Alert Dialog with an EditText will be displayed to add the value.

More so far so good, and displayed and the value is inserted and saved.

More when the application is closed and opened again, it displays the dialog asking again for the value that is no longer assigned to Shared Preference

This is my code:

I'm creating a script to capture screenshots of web pages with puppeteer, I don't understand why on this site https://www.105.net/ I save the screenshot in a mobile version. do you have any suggestions?

with headless: false, I only save screenshots in the desktop version, while with headless: true, I save the screenshot in the mobile version. I would always like to save in desktop version

I am writing an IP calculator program to convert an IP adress into the broadcast adress, network adress etc.

I need to convert the adress into 8-digit biniary first, I already used itoa for it decimal to biniary conversion, but I still need to make it always 8 digit.

I want to use a switch to do it. First the program counts the number of digits in the binary form, and then, using switch (I put it into a comment, I need to figure out this proble first) and if it adds enough zeros in front of the number (actually a string at this point) so it would always be 8 characters long.

I want to use string e1('00',e); instruction to add two zeros to the string, but it doesn't work. e is the original string, e1 is the new 8 character string. It doesn't want to compile, stops at this line (string e1('00',e);) and gives:

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