Crash when re-opening window in-session around 13 times

[Brian-ED]

There's a error that happens when, in the same dyalogAPL session, you repeatedly run initWindow and closeWindow about 13 times. This is on Linux X11. Happens in both Ride and dyalog-TUI. Doesn't happen in dyalogscript.

The error is specifically this:

WARNING: GLFW: Error: 65542 Description: GLX: No GLXFBConfigs returned
WARNING: GLFW: Error: 65545 Description: GLX: Failed to find a suitable GLXFBConfig
dyalog: external/glfw/src/window.c:581: glfwGetWindowPos: Assertion `window != NULL' failed.
apl: syserror 999.

According to this msg on raylib discord by JeffM it's saying that GLFW asked the OS to create a window with OpenGL, and the windowing system said "no".
I believe it's due to dyalog messing with UI resources which makes raylib's cleanup not work, so resources get used up, even on dyalog-TUI.

Reproduce in a DyalogAPL session, assuming your path is currently raylibAPL/. To see the crash error, make sure to be using the dyalog-TUI:

]cd link
]create # .
raylib.Init''
i←0
:while 13>i⊣i+←1 ⋄ raylib.InitWindow 400 400 'h' ⋄ raylib.CloseWindow⍬ ⋄ :endWhile

[Brian-ED]

Here's doing it 30 times in dyalogscript without error (I pasted this in-place of the basicStart.apls example and ran it via cd examples/ && dyalogscript basicStart.apls)

#!/usr/local/bin/dyalogscript
⎕SE.(⍎⊃2⎕FIX'/StartupSession.aplf',⍨2⎕NQ#'GetEnvironment' 'DYALOG')
]cd ../link
]create # .
raylib.Init''
i←0
:while 30>i⊣i+←1 ⋄ raylib.InitWindow 400 400 'h' ⋄ raylib.CloseWindow⍬ ⋄ :endWhile

[Brian-ED]

This issue is not on windows. Tested both Ride and Dyalog-IDE

[arcfide]

I can confirm that failure to properly clean up resources does result in crashes on Windows for recreating windows. We've run into this over here if you interrupt the Windows session and then fail to clean up textures or fonts that were loaded, but only do a CloseWindow, and then try to InitWindow again. We can get crashes as soon as the next iteration, but sometimes it lasts a few cycles before it finally explodes. We get a full session crash.

[Brian-ED]

This specific github issue is for crash/error caused by running only InitWindow and CloseWindow. Crashes caused by user-made resource leaks should be put in a different issue, so I made #33

[arcfide]

Sometimes we're getting crashes even when we think we've cleaned things up correctly, so it's not exactly clear whether we're hitting this or not, but we are seeing situations where we think we've run cleanly, but we crashes eventually after a certain number of runs.