I'm still running into some issues when mixing iup and coroutines, the
snippet below results in a reproducable crash on both linux and win32.
require "iuplua"
iup.SetGlobal("IUPLUA_THREADED", 1)
local function main()
local co = coroutine.running()
local dlg = iup.dialog {
iup.button {
title = "&Button",
-- on button press, resume the coroutine
action = function()
coroutine.resume(co)
end
}
}
-- show the dialog and yield until we get resumed
dlg:show()
coroutine.yield()
end
local co = coroutine.create(main)
coroutine.resume(co)
iup.MainLoop()
This is a minimized fragment from my actual code base: the UI mainly runs in
coroutine context; a widget is created and the coroutine yield()s, until an
action is triggered from a iup callback which tries to resume() the coroutine.
This seems not to be related to the garbage collection issues I ran in before,
which needed me to set the "IUPLUA_THREADED" global to prevent lua from GCing
coroutines;
gdb stack trace:
Thread 1 "lua" received signal SIGSEGV, Segmentation fault.
#0 0x0000555555a213c8 in ()
#1 0x0000555555561e62 in resume (L=L@entry=0x555555a41998,
ud=ud@entry=0x7fffffffc85c) at ldo.c:777
#2 0x0000555555560f7a in luaD_rawrunprotected
(L=L@entry=0x555555a41998, f=f@entry=0x555555561de0 <resume>,
ud=ud@entry=0x7fffffffc85c) at ldo.c:145
#3 0x0000555555562118 in lua_resume (L=L@entry=0x555555a41998,
from=from@entry=0x555555a41998, nargs=<optimized out>,
nargs@entry=0, nresults=nresults@entry=0x7fffffffc89c) at ldo.c:825
#4 0x000055555557b891 in auxresume (L=L@entry=0x555555a41998,
co=co@entry=0x555555a41998, narg=0) at lcorolib.c:39
#5 0x000055555557bbff in luaB_coresume (L=0x555555a41998) at lcorolib.c:59
#6 0x0000555555561c01 in precallC (f=0x55555557bbd0 <luaB_coresume>,
nresults=0, func=0x555555a63b90, L=0x555555a41998) at ldo.c:507
#7 luaD_precall (L=L@entry=0x555555a41998, func=<optimized out>,
func@entry=0x555555a63b90, nresults=0) at ldo.c:573
#8 0x000055555556ffec in luaV_execute (L=L@entry=0x555555a41998,
ci=<optimized out>) at lvm.c:1636
#9 0x0000555555561fd0 in ccall (inc=65537, nResults=<optimized out>,
func=<optimized out>, L=0x555555a41998) at ldo.c:610
#10 luaD_callnoyield (L=0x555555a41998, func=<optimized out>,
nResults=<optimized out>) at ldo.c:628
#11 0x0000555555560f7a in luaD_rawrunprotected
(L=L@entry=0x555555a41998, f=f@entry=0x55555555c930 <f_call>,
ud=ud@entry=0x7fffffffcb60) at ldo.c:145
#12 0x0000555555562360 in luaD_pcall
(L=L@entry=0x555555a41998, func=func@entry=0x55555555c930 <f_call>,
u=u@entry=0x7fffffffcb60, old_top=96, ef=<optimized out>)
at ldo.c:931
#13 0x000055555555ec6c in lua_pcallk
(L=0x555555a41998, nargs=<optimized out>, nresults=1, errfunc=<optimized
out>, ctx=<optimized out>, k=<optimized out>)
at lapi.c:1067
#14 0x00007ffff7c4ffba in docall () at ./iuplua.so
#15 0x00007ffff7c50298 in iuplua_call () at ./iuplua.so
#16 0x00007ffff7b7f6b1 in gtkButtonClicked () at
/home/ico/sandbox/rodney/vestel/linux/iup/libiup.so
#17 0x00007ffff6f7c949 in () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#18 0x00007ffff6f95499 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#19 0x00007ffff6f956bf in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#20 0x00007ffff73d0351 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#21 0x00007ffff76841a4 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#22 0x00007ffff6f7c877 in () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
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