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Callable library, Hasse diagram
Posted: 24 Apr 2013, 19:28
by pfetsch
The code below does not compile:
smalltest2.o: In function `pm::perl::Value::operator polymake::graph::HasseDiagram<polymake::graph::HasseDiagram>() const':
smalltest2.cc:(.text._ZNK2pm4perl5ValuecvT_IN8polymake5graph12HasseDiagramEEEv[pm::perl::Value::operator polymake::graph::HasseDiagram<polymake::graph::HasseDiagram>() const]+0x3c): undefined reference to `polymake::graph::operator>>(pm::perl::Value const&, polymake::graph::HasseDiagram&)'
Any clue?
Code: Select all
#include <polymake/Main.h>
#include <polymake/graph/HasseDiagram.h>
using namespace polymake;
int main(int argc, const char* argv[]) {
try {
const int dim = 4;
Main pm;
pm.set_application("topaz");
perl::Object p("SimplicialComplex");
p = CallPolymakeFunction("load", "test.top");
graph::HasseDiagram HD = p.give("HASSE_DIAGRAM");
} catch (const std::exception& ex) {
std::cerr << "ERROR: " << ex.what() << endl; return 1;
}
return 0;
}
Re: Callable library, Hasse diagram
Posted: 24 Apr 2013, 23:36
by gawrilow
The same problem has already been discussed in
another thread. Be sure to read to the end before taking any actions
Re: Callable library, Hasse diagram
Posted: 24 Apr 2013, 23:40
by gawrilow
By the way, your code is not economical: you first create a new SimplicialComplex, but in the next line kill it and replace with another object loaded from the file. A default constructor for p or still better a direct initialization would perfectly do. The load function is directly available as a static method of perl::Object, you don't need to wrap it into CallPolymakeFunction - this is more expensive.
Re: Callable library, Hasse diagram
Posted: 25 Apr 2013, 11:44
by pfetsch
Indeed, I have the same problems as in the other thread: linking with graph.so removes the linker error, but then I get a segmentation fault with a similar backtrace:
#0 0x00007ffff600b57e in Perl_newSV_type () from /usr/lib/libperl.so.5.10
#1 0x00007ffff7b9e9b4 in pm::perl::ArrayHolder::init_me(int) () from /local/pfetsch/programs/polymake/lib/libpolymake.so.2.12
#2 0x00007ffff737f904 in T.1944 () from /local/pfetsch/programs/polymake/lib/polymake/lib/graph.so
#3 0x00007ffff7380016 in __do_global_ctors_aux () from /local/pfetsch/programs/polymake/lib/polymake/lib/graph.so
#4 0x00007ffff72d39f3 in _init () from /local/pfetsch/programs/polymake/lib/polymake/lib/graph.so
#5 0x00007ffff7fc5000 in ?? ()
#6 0x00007ffff7debd65 in call_init (main_map=0x7ffff7ffe128, argc=-145052976, argv=0x7fffffffdc08, env=0x7fffffffdc18) at dl-init.c:70
#7 _dl_init (main_map=0x7ffff7ffe128, argc=-145052976, argv=0x7fffffffdc08, env=0x7fffffffdc18) at dl-init.c:134
#8 0x00007ffff7dddb2a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#9 0x0000000000000001 in ?? ()
#10 0x00007fffffffe000 in ?? ()
#11 0x0000000000000000 in ?? ()
P.S. I used Perpetual Beta 20130415 (the patch from the other thread has been applied).
Re: Callable library, Hasse diagram
Posted: 25 Apr 2013, 15:43
by gawrilow
Please try the last approach: not linking against graph.so, but allowing for undefined references per linker option.
Re: Callable library, Hasse diagram
Posted: 25 Apr 2013, 19:07
by pfetsch
O.k. I can link, but then we running I get:
polymake: WARNING: available properties insufficient to compute 'DIM'
ERROR: unexpected undefined value of an input property
Code: Select all
int main(int argc, const char* argv[]) {
try {
Main pm;
pm.set_application("topaz");
perl::Object p("SimplicialComplex");
p.load("test.top");
const int dim = p.give("DIM");
std::cout << dim << std::endl;
const graph::HasseDiagram HD = p.give("HASSE_DIAGRAM");
} catch (const std::exception& ex) {
std::cerr << "ERROR: " << ex.what() << endl; return 1;
}
return 0;
}
Re: Callable library, Hasse diagram
Posted: 25 Apr 2013, 23:02
by gawrilow
load() is a static function, it returns a new object:
Code: Select all
perl::Object p = perl::Object::load("filename");
For some mysterious reason, its description is missing on the reference Wiki page. I'll edit it right now.
Re: Callable library, Hasse diagram
Posted: 26 Apr 2013, 13:30
by pfetsch
O.k. this fixes my small test program. Unfortunately, copying exactly the same code to my original application results in a segmentation fault:
#0 0x0000000000000000 in ?? ()
#1 0x000000000042799e in pm::perl::Value::operator polymake::graph::HasseDiagram<polymake::graph::HasseDiagram> (this=0x7fffffffd910) at /local/pfetsch/programs/polymake/include/polymake/perl/Value.h:1113
#2 0x0000000000418902 in MORSE_MASTER (this=0x1baa0b0, problem_name=0x1b8a498 "test", file_name=0x7fffffffe013 "test.top", scip=0x1b8a4e0) at src/morse_master.C:128
at
Code: Select all
const graph::HasseDiagram HD = p.give("HASSE_DIAGRAM");
Re: Callable library, Hasse diagram
Posted: 26 Apr 2013, 15:23
by gawrilow
Sorry, but from this tiny snippet of information I can impossibly reconstruct the reason of the crash. If you can't debug it yourself, you can send me your complete program via E-mail, unless it's a top secret or it depends on a long rat tail of third-party software which I would have to install.
Re: Callable library, Hasse diagram
Posted: 01 May 2013, 21:57
by gawrilow
An update on the linker issue: Today (May 1st, 2013) I've submitted a change to the callable library which allows to use the functions and classes from application modules without any linker trickery. Now you just have to add -lpolymake-apps to your linker command; if you are using the utility polymake-config for composing it, the new option will appear automatically.
The cause of your elaborated program crashing is still under investigation.