How to call a process by button asynchronously ?

[sathanu]

I have created a small screen with start and stop button by minigui. It looks good. I want to start a service(*.exe) by the button click. When i do this, the screen comes to not responding. Is there any async library you have in the collection ? How to call exe asynchronously ?

[adamdruppe]

On Tue, Apr 10, 2018 at 09:53:30AM +0000, Sathanu wrote:

I have created a small screen with start and stop button by minigui. I want to start a service(*.exe) by the button click. When i do this, the screen comes to not responding. Is there any async library you have in the collection ? How to call exe asynchronously ?

Do you need to process output from that exe or just run it in the background without caring what it prints?

[sathanu]

just run it in the background without caring what it prints.

[adamdruppe]

In that case, Phobos' spawnProcess or spawnShell functions should do what you need. http://dpldocs.info/experimental-docs/std.process.spawnProcess.1.html

lemme know if that works for you. I do have a couple other options, but if this function works it is simpler.

[sathanu]

It is not working. The *.exe is vibe.d application. Can we start the vibe.d application in the click event of button ?

[adamdruppe]

On Tue, Apr 10, 2018 at 06:16:44PM +0000, Sathanu wrote:

It is not working. The *.exe is vibe.d application. Can we start the vibe.d application in the click event of button ?

It shouldn't matter what the exe is. What are you seeing when you try to run it? Does it throw an exception, or block on the call or what?

[sathanu]

The service is started. but the screen is not responding.

[adamdruppe]

On Tue, Apr 10, 2018 at 11:21:48AM -0700, Sathanu wrote:

The service is started. but the screen is not responding.

OK, what's the code you run in the button's click handler?

[sathanu]

void hello(HTTPServerRequest req, HTTPServerResponse res) { res.writeBody("Hello, World!"); }

auto router = new URLRouter; router.get("/hello", &hello); auto settings = new HTTPServerSettings; settings.port = 8080; settings.bindAddresses = ["::1", "127.0.0.1"]; listenHTTP(settings, router); runApplication();

[adamdruppe]

Well, that's the code in the exe, but I mean in your minigui code.

[sathanu]

If we make the below code work in minigui button click, No need to call the exe. It will reduce the difficulty. Is this possible ?

void hello(HTTPServerRequest req, HTTPServerResponse res) { res.writeBody("Hello, World!"); }

auto router = new URLRouter; router.get("/hello", &hello); auto settings = new HTTPServerSettings; settings.port = 8080; settings.bindAddresses = ["::1", "127.0.0.1"]; listenHTTP(settings, router); runApplication();

[adamdruppe]

On Tue, Apr 10, 2018 at 09:51:46PM -0700, Sathanu wrote:

If we make the below code work in minigui button click, No need to call the exe. It will reduce the difficulty. Is this possible ?

put it in a new thread. I'm not sure if vibe will love that, but that's how I'd start.

so the main thread then is your gui, and vibe lives in a worker thread that the gui can start and stop.

[sathanu]

Thanks. It is working now.

[adamdruppe]

Sweet!