#33 Subscription.Register crashes if subscribtion files

[Björn Kornefalk]

Running example code from "Database notifications" will cause crash if Register fails

  Subscription sub;
  sub.Register(con, "sub-00", Subscription::AllChanges, EventHandler, 5468, 0);

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glibc detected ./eventTest: double free or corruption (!prev): 0x000000000191d030 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3edb475e66]
/lib64/libc.so.6[0x3edb4789b3]
/vobs/thirdparty/ocilib/installed/linux/lib/libocilib.so.4(OCI_StatementFree+0x4e)[0x7f087aab85ae]
./eventTest[0x409641]
./eventTest[0x409868]
./eventTest[0x40c1ce]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x3edb41ed5d]
./eventTest[0x404211]

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Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options

---

Running with gdb

Program received signal SIGABRT, Aborted.
0x0000003edb432625 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0 0x0000003edb432625 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x0000003edb433e05 in abort () at abort.c:92
#2 0x0000003edb470537 in __libc_message (do_abort=2, fmt=0x3edb558820 " glibc detected %s: %s: 0x%s **\n")
at ../sysdeps/unix/sysv/linux/libc_fatal.c:198
#3 0x0000003edb475e66 in malloc_printerr (action=3, str=0x3edb558bb0 "double free or corruption (!prev)",
ptr=<value optimized="" out="">) at malloc.c:6336
#4 0x0000003edb4789b3 in _int_free (av=0x3edb78fe80, p=0x6fd030, have_lock=0) at malloc.c:4832
#5 0x00007ffff7dd85ae in OCI_StatementFree () from /vobs/thirdparty/ocilib/installed/linux/lib/libocilib.so.4
#6 0x0000000000409641 in ocilib::HandleHolder<OCI_Statement*>::SmartHandle::~SmartHandle() ()
at /home/kornefab/ocilib/linux/include/ocilib_impl.hpp:702
#7 0x0000000000409868 in ocilib::HandleHolder<OCI_Statement*>::SmartHandle::Release(ocilib::HandleHolder<OCI_Statement*>) ()
at /home/kornefab/ocilib/linux/include/ocilib_impl.hpp:710
#8 0x000000000040c1ce in main () at eventTest.cpp:38

[Vincent Rogier]

hi,

Thanks for reporting the issue :)

could you open an issue on the OCILIB GitHub repo ?

OCILIB as moved to GitHub and Sourceforge resources are only kept for archives purposes.

I will look at the issue asap :)

thanks

Regards,

vincent

[Vincent Rogier]

Hi,

Fixed in Github repository.