"Console" platform outputs garbage into terminal

[denizzzka]

After initial drawing of example1 it sends garbage symbols to terminal if I move mouse over terminal window.

Also, now we have some ncurses D libraries on code.dlang.org. Maybe it makes sense to remove direct esc-codes calls?

[buggins]

Are you running it under Linux?

[denizzzka]

Are you running it under Linux?

Yes

[denizzzka]

Reproducing: set (or resize while example1 runs) terminal window to size about ~152x54

[buggins]

Thanks. Let me try.

[denizzzka]

to size about ~152x54

more than*

[buggins]

Looks like program crashes (Program exited with code -11) and garbage is just mouse events displayed in terminal after program exited.

[denizzzka]

Huh! Confirmed. Backtrace:

$ gdb ./bin/example1 /tmp/core.example1.1507798810.1000.1000.5641
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./bin/example1...done.
[New LWP 5641]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /usr/lib/debug/.build-id/e9/769e5d86c2f2a0652b38041f0e48334d95b570.debug]
Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /usr/lib/debug/.build-id/d8/979dbb35017954507894a12aa70ce2ef0e9b49.debug]
Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /usr/lib/debug/.build-id/f8/30cffc69d2fb86097c4776d397bf58cab2b8fb.debug]
Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /usr/lib/debug/.build-id/ad/f51e0aeadeab97be8477c04b75c4be44c3fc03.debug]
Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /usr/lib/debug/.build-id/93/c123cbc9d19f47fb995008fb2c55f0689fea8c.debug]
Core was generated by `./bin/example1'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00005613e7907758 in dlangui.core.types.__T3RefTC7dlangui8graphics9resources8DrawableZ.Ref.clear() (this=...) at ../../src/dlangui/core/types.d:490
490             _data.releaseRef();
(gdb) bt
#0  0x00005613e7907758 in dlangui.core.types.__T3RefTC7dlangui8graphics9resources8DrawableZ.Ref.clear() (this=...) at ../../src/dlangui/core/types.d:490
#1  0x00005613e7842d68 in dlangui.widgets.controls.ImageWidget.__dtor() (this=0x7f3a9540ec00) at ../../src/dlangui/widgets/controls.d:230
#2  0x00005613e7843621 in dlangui.widgets.controls.ImageWidget.__aggrDtor() (this=0x7f3a9540ec00) at ../../src/dlangui/widgets/controls.d:229
#3  0x00005613e799571f in rt_finalize2 ()
#4  0x00005613e7969d86 in rt_finalize ()
#5  0x00005613e77c195c in object.__T7destroyTC7dlangui7widgets6widget6WidgetZ.destroy() (obj=0x7f3a9540ec00) at /usr/include/dmd/druntime/import/object.d:2735
#6  0x00005613e78ada9f in dlangui.core.collections.__T10ObjectListTC7dlangui7widgets6widget6WidgetZ.ObjectList.clear() (this=..., destroyObj=true) at ../../src/dlangui/core/collections.d:331
#7  0x00005613e78adc4f in dlangui.core.collections.__T10ObjectListTC7dlangui7widgets6widget6WidgetZ.ObjectList.__dtor() (this=...) at ../../src/dlangui/core/collections.d:355
#8  0x00005613e7897eac in dlangui.widgets.widget.WidgetGroup.__fieldDtor() (this=0x7f3a9540ea00) at ../../src/dlangui/widgets/widget.d:1721
#9  0x00005613e799571f in rt_finalize2 ()
#10 0x00005613e7995816 in rt_finalizeFromGC ()
#11 0x00005613e79903de in gc.impl.conservative.gc.Gcx.sweep() ()
#12 0x00005613e7990d2d in gc.impl.conservative.gc.Gcx.fullcollect() ()
#13 0x00005613e7993472 in gc.impl.conservative.gc.ConservativeGC.__T9runLockedS107_D2gc4impl12conservative2gc14ConservativeGC18fullCollectNoStackMFNbZ2goFNbPS2gc4impl12conservative2gc3GcxZmTPS2gc4impl12conservative2gc3GcxZ.runLocked() ()
#14 0x00005613e798d439 in gc.impl.conservative.gc.ConservativeGC.fullCollectNoStack() ()
#15 0x00005613e798d40a in gc.impl.conservative.gc.ConservativeGC.collectNoStack() ()
#16 0x00005613e79afc05 in gc_term ()
#17 0x00005613e7994937 in rt_term ()
#18 0x00005613e7967f02 in rt.dmain2._d_run_main() ()
#19 0x00005613e7967e74 in rt.dmain2._d_run_main() ()
#20 0x00005613e7967de4 in _d_run_main ()
#21 0x00005613e77e4ed2 in main ()
(gdb)

[buggins]

It crashes on GC collecting resources. I see "UIAppMain returned 0" in ui.log - and then crash on attempt to GC. Looks like root cause is in exiting of UIAppMain unexpectedly w/o freeing resources.

[buggins]

added some debug logs - now I see

rawWrite error 11 - stopping terminal

enum EAGAIN             = 11;       /// Try again

[buggins]

Probably fixed. Could you please confirm.

[denizzzka]

Works! Thanks!

[denizzzka]

Small issue again: after ctrl+C example1 immediately exits and after it console again displays garbage if mouse moves.

IMHO, dlangui is need to capture ctrl+C signal and prepare terminal to exit.

[denizzzka]

I just can not decide who should do that: application code (example1) or dlangui itself. Some text user interface programs should not to be breakable by ctrl+c.

[buggins]

It should be fixed in dlangui

[buggins]

fixed

[denizzzka]

Confirmed