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eamocanu / Facebook.Qt.APIs

more than Facebook Graph APIs - supports photo upload and photo posting on wall as well as multi user management
facebookQt
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Error when uploading 2 consecutive files to wall #1

Closed suprnrdy closed 12 years ago

suprnrdy commented 12 years ago

When uploading two images one right after another, an error occurs. Not sure how the queue is being handled, but this error results in a crash at the following line: emit (this->*signal)();

Within void Facebook::parseNetworkReply(QNetworkReply* reply){ ..........

    if (signal !=0){
        emit (this->*signal)();
    }
    if (nextRequest != 0){
        sendMessage(nextRequest);
    }

............ }

eamocanu commented 12 years ago

Hey Thanks for the email could you give me a stack trace?

Adrian

On Mon, Feb 6, 2012 at 8:23 PM, brizo < reply@reply.github.com

wrote:

When uploading two images one right after another, an error occurs. Not sure how the queue is being handled, but this error results in a crash at the following line: emit (this->*signal)();

Within void Facebook::parseNetworkReply(QNetworkReply* reply){ ..........

           if (signal !=0){
                   emit (this->*signal)();
           }
           if (nextRequest != 0){
                   sendMessage(nextRequest);
           }

............ }

Reply to this email directly or view it on GitHub: https://github.com/eamocanu/Facebook.Qt.APIs/issues/1

suprnrdy commented 12 years ago

0 ?? 0 0xca72bf72
1 ?? 0 0x1a586635
2 Facebook::parseNetworkReply Facebook.cpp 442 0x40cb32
3 Facebook::qt_metacall moc_Facebook.cpp 128 0x417b58
4 QMetaObject::metacall qmetaobject.cpp 237 0x11f5ff8
5 QMetaObject::activate qobject.cpp 3278 0x12067b0
6 QNetworkAccessManager::finished moc_qnetworkaccessmanager.cpp 163 0xbbaf6de
7 QNetworkAccessManagerPrivate::_q_replyFinished qnetworkaccessmanager.cpp 1081 0xbbad9dd
8 QNetworkAccessManager::qt_metacall moc_qnetworkaccessmanager.cpp 107 0xbbaf4fa
9 QMetaObject::metacall qmetaobject.cpp 237 0x11f5ff8
10 QMetaObject::activate qobject.cpp 3278 0x12067b0
11 QNetworkReply::finished moc_qnetworkreply.cpp 152 0xbc1853d
12 QNetworkReplyImplPrivate::finished qnetworkreplyimpl.cpp 680 0xbbc80ab
13 QNetworkAccessBackend::finished qnetworkaccessbackend.cpp 298 0xbbb1d8a
14 QNetworkAccessHttpBackend::finished qnetworkaccesshttpbackend.cpp 342 0xbbb7da1
15 QNetworkAccessHttpBackend::replyFinished qnetworkaccesshttpbackend.cpp 763 0xbbbab47
16 QNetworkAccessHttpBackend::downstreamReadyWrite qnetworkaccesshttpbackend.cpp 700 0xbbba6f4
17 QNetworkReplyImplPrivate::handleNotifications qnetworkreplyimpl.cpp 390 0xbbc6da1
18 QNetworkReplyImpl::event qnetworkreplyimpl.cpp 890 0xbbc8e88
19 QApplicationPrivate::notify_helper qapplication.cpp 4462 0x2dcbd88
20 QApplication::notify qapplication.cpp 3862 0x2dc96da
...

suprnrdy commented 12 years ago

Here's a full backtrace:

Thread 21 (Thread 7216.0x1964):

0 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f3352 in ntdll!RtlCreateTagHeap () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x000002d8 in ?? ()

No locals.

4 0x2029fedc in ?? ()

No symbol table info available.

5 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

6 0x01014818 in ?? ()

No symbol table info available.

7 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

8 0x01014818 in ?? ()

No symbol table info available.

9 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

10 0x776f3e45 in ntdll!RtlSidIsHigherLevel () from C:\Windows\system32\ntdll.dll

No symbol table info available.

11 0x01014818 in ?? ()

No symbol table info available.

12 0x00000000 in ?? ()

No symbol table info available.

Thread 20 (Thread 7216.0x1780):

0 0x776bf8b1 in ntdll!RtlUpdateClonedSRWLock () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776bf8b1 in ntdll!RtlUpdateClonedSRWLock () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x76630a91 in WaitForSingleObjectEx () from C:\Windows\syswow64\KernelBase.dll

No symbol table info available.

3 0x000008fc in ?? ()

No symbol table info available.

4 0x00000000 in ?? ()

No symbol table info available.

Thread 19 (Thread 7216.0x1b74):

0 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f3352 in ntdll!RtlCreateTagHeap () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x000008b0 in ?? ()

No symbol table info available.

4 0x1ebbfedc in ?? ()

No symbol table info available.

5 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

6 0x0107dd38 in ?? ()

No symbol table info available.

7 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

8 0x0107dd38 in ?? ()

No symbol table info available.

9 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

10 0x776f3e45 in ntdll!RtlSidIsHigherLevel () from C:\Windows\system32\ntdll.dll

No symbol table info available.

11 0x0107dd38 in ?? ()

No symbol table info available.

12 0x00000000 in ?? ()

No symbol table info available.

Thread 18 (Thread 7216.0x110c):

0 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x76630bdd in WaitForMultipleObjectsEx () from C:\Windows\syswow64\KernelBase.dll

No symbol table info available.

3 0x00000002 in ?? () at ../../../../QtSDK/Desktop/Qt/4.7.3/mingw/include/QtGui/qwidget.h:487

No symbol table info available.

4 0x00000001 in ?? () at ../../../../QtSDK/Desktop/Qt/4.7.3/mingw/include/QtGui/qwidget.h:487

No symbol table info available.

5 0x00000000 in ?? ()

No symbol table info available.

Thread 17 (Thread 7216.0x1e78):

0 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x76630bdd in WaitForMultipleObjectsEx () from C:\Windows\syswow64\KernelBase.dll

No symbol table info available.

3 0x00000001 in ?? () at ../../../../QtSDK/Desktop/Qt/4.7.3/mingw/include/QtGui/qwidget.h:487

No symbol table info available.

4 0x00000001 in ?? () at ../../../../QtSDK/Desktop/Qt/4.7.3/mingw/include/QtGui/qwidget.h:487

No symbol table info available.

5 0x00000000 in ?? ()

No symbol table info available.

Thread 14 (Thread 7216.0xeb0):

0 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f3352 in ntdll!RtlCreateTagHeap () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x00000304 in ?? ()

No locals.

4 0x1c73fedc in ?? ()

No symbol table info available.

5 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

6 0x01015990 in ?? ()

No symbol table info available.

7 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

8 0x01015990 in ?? ()

No symbol table info available.

9 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

10 0x776f3e45 in ntdll!RtlSidIsHigherLevel () from C:\Windows\system32\ntdll.dll

No symbol table info available.

11 0x01015990 in ?? ()

No symbol table info available.

12 0x00000000 in ?? ()

No symbol table info available.

Thread 12 (Thread 7216.0xf74):

0 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x73eaa41c in timeGetDevCaps () from C:\Windows\SysWOW64\winmm.dll

No symbol table info available.

3 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

4 0x00000000 in ?? ()

No symbol table info available.

Thread 11 (Thread 7216.0x1150):

0 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f3352 in ntdll!RtlCreateTagHeap () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x000002fc in ?? ()

No locals.

4 0x1e9bfedc in ?? ()

No symbol table info available.

5 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

6 0x01015990 in ?? ()

No symbol table info available.

7 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

8 0x01015990 in ?? ()

No symbol table info available.

9 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

10 0x776f3e45 in ntdll!RtlSidIsHigherLevel () from C:\Windows\system32\ntdll.dll

No symbol table info available.

11 0x01015990 in ?? ()

No symbol table info available.

12 0x00000000 in ?? ()

No symbol table info available.

Thread 5 (Thread 7216.0x2738):

0 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c1f26 in ntdll!LdrQueryProcessModuleInformation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f3352 in ntdll!RtlCreateTagHeap () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x000002d8 in ?? ()

No locals.

4 0x1c07fedc in ?? ()

No symbol table info available.

5 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

6 0x01014818 in ?? ()

No symbol table info available.

7 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

8 0x01014818 in ?? ()

No symbol table info available.

9 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

10 0x776f3e45 in ntdll!RtlSidIsHigherLevel () from C:\Windows\system32\ntdll.dll

No symbol table info available.

11 0x01014818 in ?? ()

No symbol table info available.

12 0x00000000 in ?? ()

No symbol table info available.

Thread 4 (Thread 7216.0x1744):

0 0x776bf939 in ntdll!RtlUpdateClonedSRWLock () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776bf939 in ntdll!RtlUpdateClonedSRWLock () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x73df635c in ?? () from C:\Windows\SysWOW64\mswsock.dll

No symbol table info available.

3 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

4 0x73e09124 in getnetbyname () from C:\Windows\SysWOW64\mswsock.dll

No symbol table info available.

5 0x1bd9ffd4 in ?? ()

No symbol table info available.

6 0x776d9ef2 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

7 0x0100fa90 in ?? ()

No symbol table info available.

8 0x776d9ec5 in ntdll!RtlpNtSetValueKey () from C:\Windows\system32\ntdll.dll

No symbol table info available.

9 0x73df62ee in ?? () from C:\Windows\SysWOW64\mswsock.dll

No symbol table info available.

10 0x00000000 in ?? ()

No symbol table info available.

Thread 2 (Thread 7216.0x1bd8):

0 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

1 0x776c013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation () from C:\Windows\system32\ntdll.dll

No symbol table info available.

2 0x776f2f51 in ntdll!RtlWeaklyEnumerateEntryHashTable () from C:\Windows\system32\ntdll.dll

No symbol table info available.

3 0x00000004 in ?? () at ../../../../QtSDK/Desktop/Qt/4.7.3/mingw/include/QtCore/qbasicatomic.h:70

No symbol table info available.

4 0x7718339a in KERNEL32!BaseCleanupAppcompatCacheSupport () from C:\Windows\syswow64\kernel32.dll

No symbol table info available.

5 0x00000000 in ?? ()

No symbol table info available.

Thread 1 (Thread 7216.0x2364):

0 0xca72bf72 in ?? ()

No symbol table info available.

1 0x1a586635 in ?? ()

No symbol table info available.

2 0x0040cb32 in Facebook::parseNetworkReply (this=0x1a614010, reply=0x1e137ca0) at ..\OSC_Live_Server_Dev\src\Facebook.cpp:442

    signal = (void (Facebook::*)(Facebook *)) 0x1a58662c
    lastRequest = 0x1e487610
    nextRequest = 0x0

3 0x00417b58 in Facebook::qt_metacall (this=0x1a614010, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x28d518) at debug\moc_Facebook.cpp:128

No locals.

4 0x011f5ff8 in QMetaObject::metacall (object=0x1a614010, cl=QMetaObject::InvokeMetaMethod, idx=22, argv=0x28d518) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qmetaobject.cpp:237

    mo = 0x0

5 0x012067b0 in QMetaObject::activate (sender=0x1a614054, m=0xbc60068, local_signal_index=2, argv=0x28d518) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qobject.cpp:3278

    receiverInSameThread = true
    previousSender = 0x0
    receiver = 0x1a614010
    method = 22
    currentSender = {sender = 0x1a614054, signal = 6, ref = 1}
    c = 0x1a614cb8
    last = 0x1a614cb8
    methodOffset = 4
    signal_absolute_index = 6
    empty_argv = {0x0}
    currentThreadData = 0x347990
    locker = {val = 442396616}
    connectionLists = 0x1a614cf0
    signalOffset = 2
    signal_index = 4

6 0x0bbaf6de in QNetworkAccessManager::finished (this=0x1a614054, _t1=0x1e137ca0) at tmp/moc/debug_shared/moc_qnetworkaccessmanager.cpp:163

    _a = {0x0, 0x28d534}

7 0x0bbad9dd in QNetworkAccessManagerPrivate::_q_replyFinished (this=0x1a614118) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkaccessmanager.cpp:1081

    q = 0x1a614054
    reply = 0x1e137ca0

8 0x0bbaf4fa in QNetworkAccessManager::qt_metacall (this=0x1a614054, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x28d63c) at tmp/moc/debug_shared/moc_qnetworkaccessmanager.cpp:107

No locals.

9 0x011f5ff8 in QMetaObject::metacall (object=0x1a614054, cl=QMetaObject::InvokeMetaMethod, idx=10, argv=0x28d63c) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qmetaobject.cpp:237

    mo = 0x0

10 0x012067b0 in QMetaObject::activate (sender=0x1e137ca0, m=0xbc601c0, local_signal_index=1, argv=0x0) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qobject.cpp:3278

    receiverInSameThread = true
    previousSender = 0x0
    receiver = 0x1a614054
    method = 10
    currentSender = {sender = 0x1e137ca0, signal = 9, ref = 1}
    c = 0x1e3e2420
    last = 0x1e3e2420
    methodOffset = 8
    signal_absolute_index = 9
    empty_argv = {0x0}
    currentThreadData = 0x347990
    locker = {val = 442062120}
    connectionLists = 0x1a58cd10
    signalOffset = 6
    signal_index = 7

11 0x0bc1853d in QNetworkReply::finished (this=0x1e137ca0) at tmp\moc\debug_shared\moc_qnetworkreply.cpp:152

No locals.

12 0x0bbc80ab in QNetworkReplyImplPrivate::finished (this=0x1b9445b0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkreplyimpl.cpp:680

    q = 0x1e137ca0
    totalSize = {d = {data = {c = 78 'N', i = 78, u = 78, b = 78, d = 3.853712037561723e-322, f = 1.0930128e-043, real = 3.853712037561723e-322, ll = 78, ull = 78, o = 0x4e, ptr = 0x4e, shared = 0x4e}, type = 4, is_shared = 0, is_null = 0}, static handler = 0x3602640}

13 0x0bbb1d8a in QNetworkAccessBackend::finished (this=0x1e1e9ea0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkaccessbackend.cpp:298

No locals.

14 0x0bbb7da1 in QNetworkAccessHttpBackend::finished (this=0x1e1e9ea0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkaccesshttpbackend.cpp:342

No locals.

15 0x0bbbab47 in QNetworkAccessHttpBackend::replyFinished (this=0x1e1e9ea0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkaccesshttpbackend.cpp:763

    statusCode = 400
    sslConfig = {d = {d = 0x20b8e320}}

16 0x0bbba6f4 in QNetworkAccessHttpBackend::downstreamReadyWrite (this=0x1e1e9ea0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkaccesshttpbackend.cpp:700

No locals.

17 0x0bbc6da1 in QNetworkReplyImplPrivate::handleNotifications (this=0x1b9445b0) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkreplyimpl.cpp:390

    notification = QNetworkReplyImplPrivate::NotifyDownstreamReadyWrite
    current = {<QList<QNetworkReplyImplPrivate::InternalNotifications>> = {{p = {static shared_null = {ref = {{_q_value = 3781}}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0x1a592fc8}, d = 0x1a592fc8}}, <No data fields>}

18 0x0bbc8e88 in QNetworkReplyImpl::event (this=0x1e137ca0, e=0x208fc5e8) at c:\ndk_buildrepos\qt-desktop\src\network\access\qnetworkreplyimpl.cpp:890

No locals.

19 0x02dcbd88 in QApplicationPrivate::notify_helper (this=0x3484c8, receiver=0x1e137ca0, e=0x208fc5e8) at c:\ndk_buildrepos\qt-desktop\src\gui\kernel\qapplication.cpp:4462

    consumed = false

20 0x02dc96da in QApplication::notify (this=0x28fe4c, receiver=0x1e137ca0, e=0x208fc5e8) at c:\ndk_buildrepos\qt-desktop\src\gui\kernel\qapplication.cpp:3862

    d = 0x3484c8
    res = false

21 0x011f1540 in QCoreApplication::notifyInternal (this=0x28fe4c, receiver=0x1e137ca0, event=0x208fc5e8) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qcoreapplication.cpp:731

    threadData = 0x347990
    returnValue = true
    result = false
    cbdata = {0x1e137ca0, 0x208fc5e8, 0x28dc83}
    d = 0x1b9445b0

22 0x01258258 in QCoreApplication::sendEvent (receiver=0x1e137ca0, event=0x208fc5e8) at c:/ndk_buildrepos/qt-desktop/src/corelib/kernel//qcoreapplication.h:215

No locals.

23 0x011f25eb in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x347990) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qcoreapplication.cpp:1372

    pe = @0x20767388
    e = 0x208fc5e8
    r = 0x1e137ca0
    locker = {val = 3439032}
    startOffset = 0
    i = @0x3479b0

24 0x012148e7 in qt_internal_proc (hwnd=0xe20f48, message=1025, wp=0, lp=0) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qeventdispatcher_win.cpp:497

    localSerialNumber = 6033
    msg = {hwnd = 0xe20f48, message = 1025, wParam = 0, lParam = 0, time = 0, pt = {x = 1, y = 2678372}}
    app = 0x28fe4c
    q = 0x348758
    result = 0
    d = 0x348778

25 0x764662fa in USER32!OffsetRect () from C:\Windows\syswow64\user32.dll

No symbol table info available.

26 0x764680a9 in USER32!CreateWindowStationW () from C:\Windows\syswow64\user32.dll

No symbol table info available.

27 0x00030000 in ?? ()

No symbol table info available.

28 0x76466d3a in USER32!IsWindow () from C:\Windows\syswow64\user32.dll

No symbol table info available.

29 0x0121467e in qt_fast_timer_proc (timerId=0, user=14815048) at c:\ndk_buildrepos\qt-desktop\src\corelib\kernel\qeventdispatcher_win.cpp:429

No locals.

30 0x764677c4 in USER32!AnyPopup () from C:\Windows\syswow64\user32.dll

No symbol table info available.

31 0x00000000 in ?? ()

No symbol table info available.

eamocanu commented 12 years ago

I will look into the stack traces tomorrow. What is the value of signal when you breakpoint on

      if (signal !=0){

Let me know

Tx Adrian

On Mon, Feb 6, 2012 at 8:23 PM, brizo < reply@reply.github.com

wrote:

When uploading two images one right after another, an error occurs. Not sure how the queue is being handled, but this error results in a crash at the following line: emit (this->*signal)();

Within void Facebook::parseNetworkReply(QNetworkReply* reply){ ..........

           if (signal !=0){
                   emit (this->*signal)();
           }
           if (nextRequest != 0){
                   sendMessage(nextRequest);
           }

............ }

Reply to this email directly or view it on GitHub: https://github.com/eamocanu/Facebook.Qt.APIs/issues/1

suprnrdy commented 12 years ago

It just null. No value.
Name Value Type signal void (Facebook::)(Facebook )

But it is true when I'm doing things like connecting to facebook, getting user information and album information too.

eamocanu commented 12 years ago

if it's null then it should not go inside if (signal !=0){ ...

Right? It can't be null. This if is a check for null. Try to say signal=0 at the top where signal is declared about 10 lines up.

Could I see how your code use the API?

suprnrdy commented 12 years ago

I'm not sure I understand how you're using the signal variable.

The function is in: void Facebook::parseNetworkReply(QNetworkReply* reply){ And declared as: Facebook::Signal signal;

And I see that you set the value of signal here: if (!reply->error()) { signal= parseReplyData(lastRequest, reply->readAll());

Is the return type of parseReplyData incorrect? Because wont this always be returned as null?

eamocanu commented 12 years ago

If parseReplyData returns NULL then a signal is not emitted so you should not be seeing this error.

It just stores whatever signal parseReply returns. It can be NULL or another signal. Based on whatever reply data is sent to be parsed, parseReply returns a signal. How does your code use the API? What calls are you making?

Note: I don't have Qt on my machine anymore, that's why I asked you to inspect different vars for me.

suprnrdy commented 12 years ago

I'm going through a loop that is processing images in a directory (adding watermarks) and then sending the QByteArray via the uploadPhoto function. So I've tested it out by calling uploadPhoto twice.

The first image is uploaded fine, the second one crashes the program and I get a qdebug response of: "{"error":{"message":"(#1) An unknown error occurred","type":"OAuthException"}}"

suprnrdy commented 12 years ago

So I figured it out. It was a poorly formed image buffer that I was passing to it. The crash was due to signal not being initialized (signal = 0).

Thanks for putting this together and for your quick response.

eamocanu commented 12 years ago

Cool; you've figured it out. So it was the data that you pass in. If you did initialize the signal to 0 let me know and I'll update the code just in case someone else uploads some bad data ;)

Just a note: Your error: "{"error":{"message":"(#1) An unknown error occurred","type":"OAuthException"}}" comes from facebook and not from my API so indeed something that you are sending is wrong. Maybe it's too fast; maybe bad data. They change their API frequently so it's hard to keep up.

Also can you let me know your website or facebook app and I'll add you in the readme. I'd like to know who uses this API. I know only on a http://elacarte.com/

All in all, thanks for filing this :)

suprnrdy commented 12 years ago

Yes, adding the signal = 0 in the declaration kept it from crashing.

eamocanu commented 12 years ago

I made release 0.4 based on these findings