Hi Lex,
I have one question about tab switch in the geany. I know the different tab has different doc->id. I think there is only one thread which manages all tabs, right? I wonder when we switch different tabs to edit the document. How does geany manage or recognize different tabs? g_main_context_check will be called in g_main_loop_run. Whether the data structure GMainContext will include some information which can recognize the different tab?
Thank you very much!
Best Regards, Pengfei
On Fri, Oct 16, 2015 at 3:14 PM, Pengfei Sun shaotian330@gmail.com wrote:
Thanks Lex.
On Thu, Oct 15, 2015 at 5:33 PM, Lex Trotman elextr@gmail.com wrote:
On 16 October 2015 at 06:42, Pengfei Sun shaotian330@gmail.com wrote:
Hi Lex,
I checked again the gap buffer and heap memory dump. I made mistakes
last
time. scintilla_send_message returned the virtual address which was the address of text in the heap. However, I also found parts of text (each
line)
which locate in different address in the heap. So I made the mistake.
I still have one question about memory allocation of geany. When you
type
some text in the one window of geany, which function is responsible for allocating the memory space in the heap? g_new, g_new0, g_malloc, g_slice_alloc?? I remembered you mentioned that "The buffer itself is allocated by Scintilla which means its allocated by C++ new". But I
don't
find the exact location in the source code of geany.
Splitvector.h:94
Thank you very much!
Best Regards, Pengfei
On Wed, Oct 14, 2015 at 5:13 AM, Lex Trotman elextr@gmail.com wrote:
On 13 October 2015 at 04:43, Pengfei Sun shaotian330@gmail.com
wrote:
Hi Lex,
Thanks for you hint about scintilla. Matthew also mentioned to use
the
scintilla. I tried his patch, but there is still one problem about
the
address of buffer. I don't know why the address of output is not consistent with address of buffer in the dumped heap memory?
The Scintilla buffer is a gap buffer, its contents are moved depending on user actions, and depending on what else Geany is doing it can copy all or parts of the buffer to C memory. So your string can appear in lots of places in memory, C heap, C++ heap (which may or may not be the same as the C heap) not just in the buffer.
Cheers Lex
Best Regards, Pengfei
On Fri, Oct 9, 2015 at 7:12 PM, Lex Trotman elextr@gmail.com
wrote:
On 10 October 2015 at 08:42, Pengfei Sun shaotian330@gmail.com
wrote:
> Hi Lex, > > Thanks for your suggestions. > > I work on memory forensics. My part of project is to locate
memory of
> the > sensitive data. For example, when I use the geany open one
sensitive
> file, > and the content will be in the memory (heap). I hope I can locate
all
> memory > related this sensitive file. And later I can do some analysis or > protection. >
The buffer itself is allocated by Scintilla which means its
allocated
by C++ new.
> Now, I override malloc and can log all malloc functions to get
return
> address and size (I think g_malloc is a wrapper of malloc). But I > still > cannot building the mapping between the special file and related
heap
> memory. I know each open or created file have different ID > (GeanyDocument->id). However, I still cannot figure out how to
trace
> the > related memory of different ID. Assume I have open three files, so > there > are > three windows and three different GeanyDocument->id. I write or > change > some > things among these three windows. Meanwhile, I log all > malloc/realloc/calloc > functions. I try to figure out which malloc belong to window 1,
which
> belong > to window2 or window 3? Do you have any further suggestions for
my
> case? >
Use only one window :)
> Thank you very much. > > Best Regards, > Pengfei > > On Fri, Oct 9, 2015 at 5:45 PM, Lex Trotman elextr@gmail.com
wrote:
>> >> On 10 October 2015 at 05:05, Pengfei Sun shaotian330@gmail.com >> wrote: >> > Dear All, >> > >> > I am always using geany, but now this is the first time I
prepare
>> > to >> > look at >> > geany source code. I have one question about memory allocation. >> > When >> > we >> > open >> > one new file, there will be one new window in geany. How could
I
>> > track >> > all >> > memory allocation(g_malloc) related with this window? Or would
it
>> > be >> > possible to track all related functions with this window? >> >> The only way to track all allocations is to track Glib/GTK >> operations >> (some of these functions use Gslice, which does its own
allocations
>> from large blocks and may not show on malloc, or will show >> allocating >> the large block not all of which is for the one window). >> >> Also track g_malloc that Geany uses, though you can force that to >> always malloc I think. >> >> Also track malloc in case some libraries use it. >> >> And to track C++ new as used by the editing component (which
again
>> need not use malloc). >> >> One question is why do you want to do this,what are you trying to >> achieve? There might be a better way. >> >> Geany is mostly event driven (though a few things are timer
driven)
>> so >> if you only perform actions on one window most code run will
relate
>> to >> that window. >> >> Cheers >> Lex >> >> > >> > Thank you very much! >> > >> > Best Regards, >> > Pengfei >> > >> > >> > _______________________________________________ >> > Devel mailing list >> > Devel@lists.geany.org >> > https://lists.geany.org/cgi-bin/mailman/listinfo/devel >> > >> _______________________________________________ >> Devel mailing list >> Devel@lists.geany.org >> https://lists.geany.org/cgi-bin/mailman/listinfo/devel > > > > _______________________________________________ > Devel mailing list > Devel@lists.geany.org > https://lists.geany.org/cgi-bin/mailman/listinfo/devel > _______________________________________________ Devel mailing list Devel@lists.geany.org https://lists.geany.org/cgi-bin/mailman/listinfo/devel
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