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[Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem |
Date: |
Tue, 15 Jan 2019 01:02:28 -0500 (EST) |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko |
Follow-up Comment #54, bug #55287 (project octave):
I went back to the problem changeset and expanded the destructor for ft_render
to report when it was being executed.
ft_render::~ft_render (void)
{
std::cerr << "~ft_render executing" << std::endl;
}
I find that when I just plot something, plot (1:10), the destructor is called
4 times. I believe that this corresponds with the title, xlabel, ylabel, and
zlabel objects.
However, when I execute clf then the destructor is called 5 times. Using a
debugger, the backtrace for the fifth call is
#0 ft_render::~ft_render (this=0x55f77985d348, __in_chrg=<optimized out>)
at libinterp/corefcn/txt-eng-ft.cc:319
#1 0x00007f728589e5dc in axes::properties::~properties (this=0x55f77985c3b0,
__in_chrg=<optimized out>) at libinterp/corefcn/graphics.h:5201
#2 0x00007f72858a8000 in axes::~axes (this=0x55f77985c3a0,
__in_chrg=<optimized out>)
at libinterp/corefcn/graphics.h:7524
#3 0x00007f72858a803c in axes::~axes (this=0x55f77985c3a0,
__in_chrg=<optimized out>)
at libinterp/corefcn/graphics.h:7524
#4 0x00007f7285766315 in graphics_object::~graphics_object
(this=0x7ffd6165c9a0,
__in_chrg=<optimized out>) at libinterp/corefcn/graphics.h:3247
#5 0x00007f72857839c6 in delete_graphics_object (h=...) at
libinterp/corefcn/graphics.cc:2620
#6 0x00007f7285783a62 in delete_graphics_object (val=-18.717296929230308)
at libinterp/corefcn/graphics.cc:2647
#7 0x00007f7285783ae5 in delete_graphics_objects (vals=...)
at libinterp/corefcn/graphics.cc:2654
#8 0x00007f7285886d46 in F__go_delete__ (args=...) at
libinterp/corefcn/graphics.cc:10578
In this case, besides the children of the axes, the axes destructor is called.
The axes destructor is empty, but it also calls the ~properties destructor.
As far as I can see, this destructor is also empty. The only thing in the
ft_render destructor is the print statement to cerr that I just added. So,
I'm sure that more work is done by clf.
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- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, (continued)
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/09
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Doug Stewart, 2019/01/09
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/10
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/11
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/11
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/14
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/14
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/14
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/14
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/14
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem,
Rik <=
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/15
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Philip Nienhuis, 2019/01/17
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/17
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Robert F, 2019/01/17
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/18
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/18
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, John W. Eaton, 2019/01/18
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Pantxo Diribarne, 2019/01/18
- [Octave-bug-tracker] [bug #55287] Memory leak in graphics subsystem, Rik, 2019/01/18