• Steve (45/45) Feb 13 2023 The app is just a test echo server. JSON sent in the body of a
• ShadoLight (9/54) Feb 13 2023 The -1073741819 error is OxC0000005 in hex.
• Steven Schveighoffer (10/26) Feb 13 2023 As mentioned, that's an access violation. So something is wrong in the

Steve <fakename fakeaddress.com> writes:

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:
```d
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 
...

ShadoLight <ettienne.gilbert gmail.com> writes:

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

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.

Steven Schveighoffer <schveiguy gmail.com> writes:

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

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.

 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 ...

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