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exception failure [message #14420]

Tue, 26 February 2008 03:33

bonami
Messages: 186
Registered: June 2007
Location: Beijing

Experienced Member

U++ says runtime requested to be terminated in an unusual way. so i suppose i fail to catch the exception. just click "listen", regardless of other input fields, to see this problem.

here's my functions,

Quote:

main.cpp 475: func_server(), should be caught at line 489

Quote:

ezudp.cpp 196: serve(), should be rethrown at line 204

Quote:

ezudp.cpp 56: relate(), exception thrown at line 96

Attachment: ezcomm.zip
(Size: 331.25KB, Downloaded 234 times)

[Updated on: Tue, 26 February 2008 03:37]

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Re: exception failure [message #14447 is a reply to message #14420]

Tue, 26 February 2008 21:00

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

If I compile with MSC9, I get "writes to freed blocks". Which basically means you have some dangling pointer somewhere...

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Re: exception failure [message #14473 is a reply to message #14420]

Wed, 27 February 2008 07:11

bonami
Messages: 186
Registered: June 2007
Location: Beijing

Experienced Member

this seems to have sth. to do with multi-threading-compilation.

in test.zip, there's a .upp.st, which is single thread's upp.
currently, test project fails just like my project.
but if you rename .upp.st to .upp, test project will work fine.

you can simply call l2() instead of l1() to simplify and it still fails in MT environment.

Attachment: test.zip
(Size: 2.94KB, Downloaded 471 times)

[Updated on: Wed, 27 February 2008 08:43]

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Re: exception failure [message #14474 is a reply to message #14473]

Wed, 27 February 2008 09:33

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

For starters:

int test::Runn(bool appmodal)
{
	Picture pic;
	Image m = IMAGECLASS::Get("i");
	DrawingDraw iw(m.GetSize());
	iw.DrawImage(0, 0, m);
	Drawing dr = iw;
	pic = dr;
	this->Add(pic);

After that, I was not able to crash the code.

Mirek

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Re: exception failure [message #14513 is a reply to message #14420]

Thu, 28 February 2008 03:28

bonami
Messages: 186
Registered: June 2007
Location: Beijing

Experienced Member

i'm driven crazy.
a slight change in ezcomm decides whether it crashes.
have nothing suspicious in either in window creation or button clicking.

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Re: exception failure [message #14834 is a reply to message #14420]

Mon, 17 March 2008 08:45

bonami
Messages: 186
Registered: June 2007
Location: Beijing

Experienced Member

now here's improved code that crashes.
unimportatnt code macro'ed out.

line 185:          socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);//if commented, it does not crash
          throw std::string("throwing");
line 207:      l2();
line 283:   thrd.Run(callback1(ss, &cls::ll, (void *)NULL));
line 299: test().Runn();

(runs upwards)

Attachment: test.zip
(Size: 5.77KB, Downloaded 228 times)

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