The app is just a test echo server. JSON sent in the body of a POST request is echoed back to the client. On Pop!_OS it works fine but on Windows it responds, there's a delay of about 10 seconds and then it crashes with the error:

Error Program exited with code -1073741819

Here's the code:

import vibe.vibe;
import std.json, std.stdio;

void main() {
	auto settings = new HTTPServerSettings;
	settings.port = 8080;
	settings.bindAddresses = ["::1", "127.0.0.1"];

    auto router = new URLRouter;
    router.get("*", serveStaticFiles("public/"));
    router.post("/", &onPost);

	auto listener = listenHTTP(settings, router);
	scope (exit) { listener.stopListening(); }

	logInfo("App listening at http://127.0.0.1:8080/");
	runApplication();
}

static string handlePost(string req) {
    return req;
}

void onPost(HTTPServerRequest req, HTTPServerResponse res) {
    try {
        auto jsr = async(&handlePost, req.json.toString()).getResult();
        res.contentType("application/json; charset=utf-8");
        res.writeBody(jsr);
    } catch (Exception e) {
        res.contentType("text/plain; charset=utf-8");
        res.writeBody(e.msg);
    }
}

Also when you launch/build the app with dub there's a shed load of deprecation warnings, e.g.:

\Local\dub\packages\vibe-d-0.9.5\vibe-d\stream\vibe\stream\wrapper.d(334,23): Deprecation: reference to local variable `this` assigned to non-scope parameter `bytes` calling `writeToStream`

I'm a D newbie so it's quite possibly something I'm doing wrong ...

On Monday, 13 February 2023 at 13:12:23 UTC, Steve wrote:

Error Program exited with code -1073741819

import vibe.vibe;
import std.json, std.stdio;

void main() {
	auto settings = new HTTPServerSettings;
	settings.port = 8080;
	settings.bindAddresses = ["::1", "127.0.0.1"];

    auto router = new URLRouter;
    router.get("*", serveStaticFiles("public/"));
    router.post("/", &onPost);

	auto listener = listenHTTP(settings, router);
	scope (exit) { listener.stopListening(); }

	logInfo("App listening at http://127.0.0.1:8080/");
	runApplication();
}

static string handlePost(string req) {
    return req;
}

void onPost(HTTPServerRequest req, HTTPServerResponse res) {
    try {
        auto jsr = async(&handlePost, req.json.toString()).getResult();
        res.contentType("application/json; charset=utf-8");
        res.writeBody(jsr);
    } catch (Exception e) {
        res.contentType("text/plain; charset=utf-8");
        res.writeBody(e.msg);
    }
}

\Local\dub\packages\vibe-d-0.9.5\vibe-d\stream\vibe\stream\wrapper.d(334,23): Deprecation: reference to local variable `this` assigned to non-scope parameter `bytes` calling `writeToStream`

The -1073741819 error is OxC0000005 in hex.

And C0000005 on Windows is a access violation exception, indicating that you are trying to access memory that doesn't belong to your process. Possibly a 'buffer overrun' access exception - but I'm not sure in this case.

Unfortunately I'm not experienced with vibe at all - so I can't help with your code.

Just google 'Windows error C0000005' for more info.

On 2/13/23 8:12 AM, Steve wrote:

Error Program exited with code -1073741819

As mentioned, that's an access violation. So something is wrong in the vibe library on windows.

I confirmed it works fine for me on Linux.

Did you try without the async call? Try and reduce which part of it is causing the failure.

\Local\dub\packages\vibe-d-0.9.5\vibe-d\stream\vibe\stream\wrapper.d(334,23): Deprecation: reference to local variable `this` assigned to non-scope parameter `bytes` calling `writeToStream`

This is the hellscape that we are in for with dip1000 around the corner. It's not your fault, many many programs/libraries have not been updated to deal with dip1000, and it likely will be this way for a while.

-Steve