Questions tagged [signals]

A signal serves as a form of communication to an application that an action has taken place. Signals are often likened to software interrupts and can be compared to hardware interrupts in their ability to disrupt the regular flow of a program's execution. The arrival of a signal is unpredictable, much like hardware interrupts. While signals are specified in C standards and further developed in POSIX, many other programming languages and systems also offer capabilities for managing signals.

Sending an Angular signal value from a component input to a service

During some experimentation with Angular 17 and signals, I encountered a scenario that I'm unsure how to tackle without resorting to ngOnChanges and @Input handling. Imagine you have a component with input signals, and you want to replicate or set th ...

angularsignals

The asyncio add_signal_handler function is failing to capture the sigint and sigterm signals

I'm currently facing a challenge with debugging an issue in my asyncio project. My goal is to ensure it shuts down smoothly. import asyncio import signal async def clean_loop(signal, loop): print("something") tasks = [t for t in a ...

pythonpython-3.xasynchronoussignalspython-asyncio

Halting the execution of Python processes initiated by a subprocess through user input without terminating the subprocess

Currently, I am in the process of developing a Python shell project that requires the capability to pause and background a running subprocess. Unfortunately, I have encountered difficulties with existing methods for pausing the subprocess, as they seem to ...

pythonsignalssubprocesskeyboardinterrupt

Using Node.js to Send Ctrl+C to a Child Process in a Windows Environment

Hey there, I've been using child_process.spawn to launch a child process that runs a Python script on my Windows machine. The Python script listens for SIGINT to gracefully exit itself, but unfortunately Windows doesn't support signals and Node j ...

node.jswindowssignalschild-process

What is the best way to update the value of a preact signal from a different component?

export const clicked = signal(false); const handleClickDay = (date) => { const day = date.getDate().toString().padStart(2,'0') const month = (date.getMonth()+1).toString().padStart(2,'0') const year = da ...

javascriptreactjssignalspreact

Disable standard output in Python using SIGSTOP

Currently, I am working on developing a background program that has the capability to be easily paused and resumed. By initiating another instance of prog.py and utilizing pause flags, I have been able to successfully achieve this functionality. Utilizing ...

pythonsignalsstdout

Benefits of Angular Signals - Why is it advantageous?

I'm grappling with the concept of Angular Signals and their benefits. While many examples demonstrate counting, I'm curious about why signals are preferable to using variables like myCount and myCountDouble as shown below? Check out my code on StackBlitz ...

angularsignalsangular-signals

What is the process to manually trigger hot reload in Flutter?

I am currently developing a Node.js application to make changes to Flutter code by inserting lines of code into it. My goal is to view these updates in real-time. Is there a way to implement hot reload so that every time I finish writing a line in the file ...

javascriptnode.jsfluttersignalsflutter-plugin