Application which uses Qpid (in my case Excel) hangs on shutdown ----------------------------------------------------------------
Key: QPID-3256 URL: https://issues.apache.org/jira/browse/QPID-3256 Project: Qpid Issue Type: Bug Environment: OS: Windows. Qpid is assembled as DLL. Reporter: Eugene Fix For: 0.8 Hi All I encountered with strange behavior on shutdown when using qpid 0-8. When I use qpid in standalone console-application everything is ok. But when I use qpid in DLL which is loaded into Excel (as RTD module), Excel hangs on shutdown. I found out that in standalone application on shutdown I have next stack: qpidclientd.dll!qpid::client::`anonymous namespace'::IOThread::~IOThread() Line 138 C++ qpidclientd.dll!`qpid::client::`anonymous namespace'::theIO'::`2'::`dynamic atexit destructor for 'io''() + 0xd bytes C++ qpidclientd.dll!_CRT_INIT(void * hDllHandle=0x60080000, unsigned long dwReason=0, void * lpreserved=0x00000001) Line 449 C qpidclientd.dll!__DllMainCRTStartup(void * hDllHandle=0x60080000, unsigned long dwReason=0, void * lpreserved=0x00000001) Line 560 + 0x11 bytes C qpidclientd.dll!_DllMainCRTStartup(void * hDllHandle=0x60080000, unsigned long dwReason=0, void * lpreserved=0x00000001) Line 510 + 0x11 bytes C ntdll.dll!77b79960() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!77b9a516() ntdll.dll!77b9a3b8() kernel32.dll!77657363() msvcr90d.dll!__crtExitProcess(int status=0) Line 732 C msvcr90d.dll!doexit(int code=0, int quick=0, int retcaller=0) Line 644 + 0x9 bytes C msvcr90d.dll!exit(int code=0) Line 412 + 0xd bytes C Test.exe!__tmainCRTStartup() Line 599 C Test.exe!mainCRTStartup() Line 403 C kernel32.dll!77653677() ntdll.dll!77b79f02() ntdll.dll!77b79ed5() And in this state all threads of application are terminated. The only thread is: 1 > 21720 Main Thread Main Thread qpid::client::`anonymous namespace'::IOThread::~IOThread Normal 0 so code from file ConnectionImpl.cpp works well: ~IOThread() { std::vector<Thread> threads; { ScopedLock<Mutex> l(threadLock); if (poller_) poller_->shutdown(); t.swap(threads); } for (std::vector<Thread>::iterator i = threads.begin(); i != threads.end(); ++i) { i->join(); } } BUT in Excel I get stack: qpidclientd.dll!qpid::client::`anonymous namespace'::IOThread::~IOThread() Line 130 C++ qpidclientd.dll!`qpid::client::`anonymous namespace'::theIO'::`2'::`dynamic atexit destructor for 'io''() + 0xd bytes C++ qpidclientd.dll!_CRT_INIT(void * hDllHandle=0x07700000, unsigned long dwReason=0, void * lpreserved=0x00000000) Line 449 C qpidclientd.dll!__DllMainCRTStartup(void * hDllHandle=0x07700000, unsigned long dwReason=0, void * lpreserved=0x00000000) Line 560 + 0x11 bytes C qpidclientd.dll!_DllMainCRTStartup(void * hDllHandle=0x07700000, unsigned long dwReason=0, void * lpreserved=0x00000000) Line 510 + 0x11 bytes C ntdll.dll!77b79960() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!77ba1525() ntdll.dll!77b81231() KernelBase.dll!77281da7() ole32.dll!75bb9562() ole32.dll!75bb9593() ole32.dll!75bb95a7() ole32.dll!75bb98bf() ole32.dll!75bb9805() ole32.dll!75bb9a8c() EXCEL.EXE!2f3811e9() EXCEL.EXE!2f6933e8() EXCEL.EXE!2f32a5af() EXCEL.EXE!2f34894a() EXCEL.EXE!2f670001() MSO.DLL!65bc6ed5() MSO.DLL!65c26a34() MSO.DLL!65c30305() MSO.DLL!65bc910c() MSO.DLL!65c4f420() MSO.DLL!65bbf161() comctl32.dll!7233463d() user32.dll!762971be() user32.dll!76297d31() user32.dll!76297dfa() EXCEL.EXE!2f324572() EXCEL.EXE!2f324534() EXCEL.EXE!2f324441() MSO.DLL!65b78116() MSO.DLL!65ba1fd0() EXCEL.EXE!2f30424b() msvcr90.dll!749936c5() msvcr90.dll!749938b3() msvcr90.dll!749938c5() msvcr90.dll!749ac40c() msvcr90.dll!749b028d() msvcr90.dll!749b04f3() EXCEL.EXE!2f303f0a() kernel32.dll!77653677() ntdll.dll!77b79f02() ntdll.dll!77b79ed5() And threads: 0 24016 Worker Thread _threadstartex _threadstartex Normal 0 0 > 22928 Main Thread Main Thread qpid::client::`anonymous namespace'::IOThread::~IOThread Normal 0 0 20224 RPC Thread RPC Callback Thread 77b5fd21 Normal 0 0 16492 Worker Thread Win32 Thread 77b61ed6 Normal 0 0 19948 Worker Thread Win32 Thread 77b600ed Normal 0 0 20524 Worker Thread Win32 Thread 77b61ed6 Normal 0 0 20532 Worker Thread Win32 Thread 77b5f861 Normal 0 0 21500 Worker Thread Win32 Thread 77b5f861 Normal 0 0 21848 Worker Thread Win32 Thread 77b61ed6 Normal 0 0 22152 Worker Thread Win32 Thread 77b5f861 Normal 0 0 22164 Worker Thread Win32 Thread 77b5f8e9 Normal 0 0 22300 Worker Thread Win32 Thread 77b5f861 Normal 0 0 22360 Worker Thread Win32 Thread 77b61ed6 Normal 0 0 23316 Worker Thread Win32 Thread 77b5f861 Normal 0 0 23556 Worker Thread Win32 Thread 77b5f8e9 Normal 0 0 23700 Worker Thread Win32 Thread 77b5f861 Normal 0 0 23912 Worker Thread Win32 Thread 77b5f8e9 Normal 0 0 24276 Worker Thread Win32 Thread 77b5f861 Normal 0 0 24308 Worker Thread Win32 Thread 77b5f861 Normal 0 0 24424 Worker Thread Win32 Thread 77b600ed Normal 0 0 24452 Worker Thread Win32 Thread 77b5f8e9 Normal 0 0 24520 Worker Thread Win32 Thread 77b61ed6 Normal 0 As result this code (below) hangs application(Excel): ~IOThread() { std::vector<Thread> threads; { ScopedLock<Mutex> l(threadLock); if (poller_) poller_->shutdown(); t.swap(threads); } for (std::vector<Thread>::iterator i = threads.begin(); i != threads.end(); ++i) { i->join();-- APPLICATION HANGS HERE } } I suppose it occurs because of qpid tries to wait of thread completing from _DllMainCRTStartup which is called with PROCESS_DETACH. To work around it I modified function IOThread::sub(): void sub() { std::vector<Thread> threads; { ScopedLock<Mutex> l(threadLock); --connections; if (connections == 0){ if (poller_){ poller_->shutdown(); poller_.reset(); t.swap(threads); } } } for (std::vector<Thread>::iterator i = threads.begin(); i != threads.end(); ++i) { i->join(); } } But I don't think it is a good solution. Could you help me to solve this problem? Thanks -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:dev-subscr...@qpid.apache.org