I can't test this on Linux atm but if you start the app with Warp.RunAndWaitForInput from terminal then press
Ctrl+Z and put it in the background with bg does the same thing happen?
If I hit Ctrl-Z and put the application in the background with bg, the process appears to be listening on port 9000, but not responding in any way. If I fg the application, it responds. (I just checked and this appears to be the same behavior when using & -- it actually has claimed port 9000, but any request made to that port just hangs with no response.)
I figured out a (somewhat baroque) way to accomplish this, by creating a start.sh script which I put in the background. The start.sh script is as follows:
#!/bin/sh
screen -D -m mono -O=all bin/Release/websharper-app.exe
Still didn't get around to try this on mono so no idea why & wouldn't work but I'm glad you solved it.
This is documented behavior: If a process is waiting for input while it is backgrounded, it receives SIGTTIN and is stopped.
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Another Linux/Mono question: When using
do Warp.RunAndWaitForInput(MyApplication) |> ignoreif I run the application like so on Linux:
mono -O=all `pwd`/bin/Release/websharper-app.exe &then the application continues to wait for user input from stdin, even though it is in the background. The shell suspends the application until input is received, so that even if I don't hit the enter key, the application in the background is stil not listening on port 9000.
I tried
do Warp.Run(MyApplication) |> ignorebut that exits immediately. Is there any way I can put the Warp process in the background while not having it wait for input on stdin?