i have a gtk3 program written in golang using gotk3 lib
i have cross compile it using fedora docker (i followed the wiki guide here)
when testing the exe in windows i get the following error:
Gtk:ERROR:…/gtk/gtkiconhelper.c:495:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load C:\Users\USER\projects\PROJECT\share\icons\Adwaita\scalable/status\image-missing.svg: Unable to load image-loading module: C:\Users\USER\projects\PROJECT../lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.dll: ’ C:\Users\USER\projects\PROJECT../lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.dll’: The specified module could not be found. (gdk-pixbuf-error-quark, 5)
i found deleting the lib folder will solve this issue but sometimes when launching the exe it freezes (about 6/10 tries it freezes)
how can i fix that
It’s hard to say… I’m using gtk on Windows too (though not with Go, but with C, Vala and Python) and never faced such freezes.
Ideally, try to connect a debugger and break during the freeze to check the backtrace.
If you don’t have a debugger, try to print some debug messages from your code to try to figure out where it’s stuck. You may also try to set gtk’s debug environment variables.
it stucks at gtk main loop
this only happen in windows and compatibility wont fix it
EDIT:i have set the inspecter to true when the program freezes it freezes too
I tried gtk 3.23 (i was using gtk 3.24)
the freezing problem exist but in a different way
in 3.24: the window loads after that it freezes
in 3.23:for some reason there will be 2 instance of the program non of the load the window both are freezed (one of them has the icon i set in the code the other uses default gtk icon but sometimes both of them uses gtk default icon)
Note: in 3.23 only when the 2 instance exist it freezes when the there is only one it work fine
EDIT:I dont know if it is related to freezing or not but the stack trace is different when the program run normal. The 1st one
ntoskrnl.exe!KeSynchronizeExecution+0x6fa6
ntoskrnl.exe!KeWaitForSingleObject+0x1460
ntoskrnl.exe!KeWaitForSingleObject+0x98f
ntoskrnl.exe!KeWaitForSingleObject+0x233
ntoskrnl.exe!IoGetIoPriorityHint+0x164d
ntoskrnl.exe!KiCheckForKernelApcDelivery+0x401
ntoskrnl.exe!KeWaitForSingleObject+0x1787
ntoskrnl.exe!KeWaitForSingleObject+0x98f
ntoskrnl.exe!KeWaitForSingleObject+0x233
ntoskrnl.exe!ObWaitForSingleObject+0x91
ntoskrnl.exe!NtWaitForSingleObject+0x6a
ntoskrnl.exe!setjmpex+0x8648
ntdll.dll!ZwWaitForSingleObject+0x14
KERNELBASE.dll!WaitForSingleObjectEx+0x8e
app_gtk_3_24.exe+0x7229a
i tried to compile with debug info i got the following error:
In file included from /usr/include/glib-2.0/gio/gio.h:48,
from …/…/pkg/mod/github.com/gotk3/gotk3@v0.6.3/glib/application.go:3:
/usr/include/glib-2.0/gio/gcredentials.h:77:1: error: unknown type name ‘uid_t’; did you mean ‘pid_t’?
77 | uid_t g_credentials_get_unix_user (GCredentials *credentials,
| ^~~~~
| pid_t
/usr/include/glib-2.0/gio/gcredentials.h:81:52: error: unknown type name ‘uid_t’; did you mean ‘pid_t’?
81 | uid_t uid,
| ^~~~~
| pid_t
the command i use to compile is
CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc GOOS=windows GOARCH=amd64 go build -ldflags -H=windowsgui -gcflags=“all=-N -l -l” --tags “fts5” -o bin/app_debugging.exe cmd/main/main.go
no i used the same commands written in gotk3 cross compiling using fedora docker but i only cp /usr/x86_64-w64-mingw32/sys-root/mingw/bin/*.dll and cp -r /usr/x86_64-w64-mingw32/sys-root/mingw/share
since copying other folders and files wont change the state
well what i understood from our previous tries is that the problem is with my code and not a gotk3 lib, right?
if so what is the most common causes of freezing in gtk main loop? (i have a print statment to print the launch time its before the gtk.main method)
The main loop it the one processing input events and drawing the widgets.
GTK is event driven, so if the mainloop gets stuck, it means there is either a long processing ongoing or a lots of high-prio events being processed.
well i have a sqlite db connected to the app i query some data from it and load it as a gtklistbox before the gtk main could that be relative?
even tho in my testing rn i am using an empty database so its not a long procces to make it freeze
EDIT:i dont really think that the case since there is no freezing in linux
only the app (.exe) must have debug info’s. And most probably it’s already ok, see