52,007 questions
1
vote
1
answer
61
views
How to execute async code for thread-locals in a non-threaded environment?
I need to execute an async function for a thread local. The minimal example:
use std::cell::RefCell;
thread_local! {
static REQUESTS_CHECKER: RefCell<()> = RefCell::new(());
}
async fn a() ...
- 5,885
-3
votes
1
answer
72
views
I apparently hit a Rust bug, what to do?
I apparently hit a Rust bug. The minimal example:
use std::cell::RefCell;
thread_local! {
static REQUESTS_CHECKER: RefCell<()> = RefCell::new(());
}
async fn a() {}
async fn b() {
...
- 5,885
0
votes
0
answers
38
views
How to get socket_descriptor in Asynchronous MySQL? [closed]
I need asynchronous work with MySQL, I use _nonblocking functions as: mysql_real_connect_nonblocking, mysql_real_query_nonblocking, mysql_store_result_nonblocking (https://dev.mysql.com/doc/c-api/9.3/...
-1
votes
0
answers
47
views
Propagating custom thread-local variables across async calls in Spring Boot microservices [closed]
I have a Spring Boot microservices setup where I use @Async methods for asynchronous processing. I need to propagate custom thread-local variables (like correlation IDs, user context, or request ...
- 1
0
votes
1
answer
37
views
How to handle Android UI events in C++ without blocking the main thread but keeping execution order?
I’m building an Android native application where most of the business logic resides in C++.
For example, UI events like Key Press or Drag-Drop arrive on the main thread. To process them, I forward ...
- 425
0
votes
0
answers
95
views
How can I create a single function in Rust that accepts both sync fn and async fn?
I’m building a small web server in Rust and I want the server’s add_route method to accept both synchronous and asynchronous handlers ergonomically.
Goal: allow end-users to write code as simple as:
//...
- 203
1
vote
0
answers
38
views
Resolve promise in a typescript non async function [duplicate]
I have a typescript file with the following non async function.
export function MSALInstanceFactory(): IPublicClientApplication {
const environmentService = new EnvironmentService();
const ...
- 1,108
2
votes
2
answers
69
views
Why is asyncio.gather returning results in a different order than my tasks?
I’m learning about asynchronous programming in Python and testing with asyncio.
import asyncio
import random
async def worker(name):
delay = random.randint(1, 3)
await asyncio.sleep(delay)
...
- 21
0
votes
1
answer
74
views
Spawning multiple tasks but inner function is not executed without error message
I'm trying to spawn multiple parallel (not concurrent) tasks. Every task is running a PUT operation to a custom S3 storage using AWS SDK for Rust.
The function body looks the following (the different ...
- 185
0
votes
1
answer
76
views
Get duration of a video by swift API in macOS
I'm working for weeks to get the duration of a video file. I want to use direct api calls. I know, that I can use external command line tools to get it. But I want to avoid the dependencies with these ...
- 2,314
-1
votes
0
answers
72
views
How can my router accept async handlers (`async fn(&Request) -> Response`) without changing call sites?
I’m building a small HTTP library
with both sync and async runtimes (Tokio,async-std or smol).
I'm using Rust edition 2024, and for this crate I' trying to keep dependencies as few and as stable/basic ...
- 203
1
vote
1
answer
77
views
Writing and running a stored procedure asynchronously *and* getting a return value
Suppose I have two stored procedures, foo and bar, both written using Snowflake Scripting language.
Inside foo, I want to call bar asynchronously and get a return value from bar. Is there currently a ...
- 1,729
0
votes
1
answer
106
views
Return timing of dart `Future` objects in asynchrounous functions
First, Please correct me anything I inferred about asynchrounous programming in dart, and even what I summarized from the docs,
And please check if my idea about when Future objects are correct. I ...
- 85
0
votes
1
answer
108
views
why am I getting "Bad state: Stream has already been listened to."?
Before asking this question, I extensively searched stackoverflow and other platforms for similar questions. However I could not find an answer to my problem.
So, basically, I am trying to use dart ...
- 3,147
0
votes
0
answers
48
views
WPF main function becomes MTA when made async
I have a WPF application and I'm trying to do some async stuff in the startup. I'm trying to move from:
[STAThread]
public static void Main(string[] args)
{
_app = new Application
{
...
- 2,445