Hi Denis,
Thanks for the report.
I'm taking look at this issue tonight and will be back to you.
Mat
On 11/11/10 07:57, Denis Chapligin wrote:
> Hi
>
> I have some simple app, that segfaults on exit. Here is the
> code(simplifid, with unrelated parts removed):
>
> class CMysteryDatabasePoolData : public SomeLocalSingleton {
> shared_ptr<connection_pool> _pool;
> public:
> CMysteryDatabasePoolData() {
> this->_pool=shared_ptr<connection_pool>(new
> connection_pool(poolSize));
> for (size_t i=0; i !=poolSize; ++i) {
> session&sql=_pool->at(i);
> sql.open(type,dsnURL.str());
> }
> };
> connection_pool& pool() const {return *(this->_pool) };
> };
>
> class CMysteryDatabaseGateway : public boost::noncopyable {
> protected:
> shared_ptr<session> sql;
> public:
> CMysteryDatabaseGateway() {
> sql=shared_ptr<session>(new
> session(CMysteryDatabasePool().pool()));
> }
> };
>
> class CMysteryTestGateway : public CMysteryDatabaseGateway {
> public:
> string getTest() {
> string ret;
> *sql<<"select 'Test' from SYSIBM.SYSDUMMY1",into(ret);
> return ret;
> }
> };
>
> and finally:
>
> int main(int,char**) {
> CMysteryTestGateway tgw;
> return !tgw.getTest().compare("Test");
> }
>
>
> This code will fail on clean-uo with following backtrace:
> #0 0xf536c97e in sqloxltc_app () from /opt/ibm/db2/V9.7/lib32/libdb2.so
> #1 0xf547d7d4 in CLI_dstRequestHLatch () from
> /opt/ibm/db2/V9.7/lib32/libdb2.so
> #2 0xf53f0e73 in SQLDisconnect () from /opt/ibm/db2/V9.7/lib32/libdb2.so
> #3 0xf6503f2f in SQLDisconnect () from /usr/lib/libodbc.so.1
> #4 0xf7676992 in soci::odbc_session_backend::clean_up () from
> /usr/lib/libsoci_odbc.so
> #5 0xf7676d5d in soci::odbc_session_backend::~odbc_session_backend () from
> /usr/lib/libsoci_odbc.so
> #6 0xf748bde6 in soci::session::~session () from
> /usr/lib/libsoci_core-gcc-3_0-3.0.0.so
> #7 0xf7485bf0 in soci::connection_pool::~connection_pool () from
> /usr/lib/libsoci_core-gcc-3_0-3.0.0.so
> #8 0xf77316b8 in boost::checked_delete<soci::connection_pool> (x=0x99904c8)
> at /usr/include/boost/checked_delete.hpp:34
> #9 0xf77317c4 in
> boost::detail::sp_counted_impl_p<soci::connection_pool>::dispose
> (this=0x99910b0)
> at /usr/include/boost/smart_ptr/detail/sp_counted_impl.hpp:78
> #10 0x0808cb0e in boost::detail::sp_counted_base::release (this=0x99910b0) at
> /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:145
> #11 0x0808cb46 in ~shared_count (this=0xf777f26c) at
> /usr/include/boost/smart_ptr/detail/shared_count.hpp:217
> #12 0xf7730f96 in ~shared_ptr (this=0xf777f268) at
> /usr/include/boost/smart_ptr/shared_ptr.hpp:169
> #13 0xf77313a3 in ~CMysteryDatabasePoolData (this=0xf777f268) at
> /home/chollya/Mystery/src/libmysterycommon/database.h:19
> #14 0xf7223ab9 in exit () from /lib/i686/cmov/libc.so.6
> #15 0xf720b45d in __libc_start_main () from /lib/i686/cmov/libc.so.6
> #16 0x0808b9f1 in _start ()
>
--
Mateusz Loskot, http://mateusz.loskot.net
Charter Member of OSGeo, http://osgeo.org
Member of ACCU, http://accu.org
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