X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/890d70ebeaf39ee13012d22751d64d8de070275c..7198c3368055d88249a338eb33b21f051f674806:/src/common/appbase.cpp diff --git a/src/common/appbase.cpp b/src/common/appbase.cpp index 269be5b575..194d0793ac 100644 --- a/src/common/appbase.cpp +++ b/src/common/appbase.cpp @@ -6,7 +6,7 @@ // Created: 19.06.2003 (extracted from common/appcmn.cpp) // RCS-ID: $Id$ // Copyright: (c) 2003 Vadim Zeitlin -// License: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -43,6 +43,7 @@ #include "wx/filename.h" #include "wx/msgout.h" #include "wx/scopedptr.h" +#include "wx/sysopt.h" #include "wx/tokenzr.h" #include "wx/thread.h" @@ -115,6 +116,8 @@ wxAppInitializerFunction wxAppConsoleBase::ms_appInitFn = NULL; wxSocketManager *wxAppTraitsBase::ms_manager = NULL; +WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete; + // ---------------------------------------------------------------------------- // wxEventLoopPtr // ---------------------------------------------------------------------------- @@ -144,14 +147,17 @@ wxAppConsoleBase::wxAppConsoleBase() // In unicode mode the SetTraceMasks call can cause an apptraits to be // created, but since we are still in the constructor the wrong kind will // be created for GUI apps. Destroy it so it can be created again later. - delete m_traits; - m_traits = NULL; + wxDELETE(m_traits); #endif #endif } wxAppConsoleBase::~wxAppConsoleBase() { + // we're being destroyed and using this object from now on may not work or + // even crash so don't leave dangling pointers to it + ms_appInstance = NULL; + delete m_traits; } @@ -159,21 +165,45 @@ wxAppConsoleBase::~wxAppConsoleBase() // initialization/cleanup // ---------------------------------------------------------------------------- -bool wxAppConsoleBase::Initialize(int& WXUNUSED(argc), wxChar **argv) +bool wxAppConsoleBase::Initialize(int& WXUNUSED(argc), wxChar **WXUNUSED(argv)) { #if wxUSE_INTL GetTraits()->SetLocale(); #endif // wxUSE_INTL + return true; +} + +wxString wxAppConsoleBase::GetAppName() const +{ + wxString name = m_appName; #ifndef __WXPALMOS__ - if ( m_appName.empty() && argv && argv[0] ) + if ( name.empty() ) { - // the application name is, by default, the name of its executable file - wxFileName::SplitPath(argv[0], NULL, &m_appName, NULL); + if ( argv ) + { + // the application name is, by default, the name of its executable file + wxFileName::SplitPath(argv[0], NULL, &name, NULL); + } } #endif // !__WXPALMOS__ + return name; +} - return true; +wxString wxAppConsoleBase::GetAppDisplayName() const +{ + // use the explicitly provided display name, if any + if ( !m_appDisplayName.empty() ) + return m_appDisplayName; + + // if the application name was explicitly set, use it as is as capitalizing + // it won't always produce good results + if ( !m_appName.empty() ) + return m_appName; + + // if neither is set, use the capitalized version of the program file as + // it's the most reasonable default + return GetAppName().Capitalize(); } wxEventLoopBase *wxAppConsoleBase::CreateMainLoop() @@ -183,11 +213,7 @@ wxEventLoopBase *wxAppConsoleBase::CreateMainLoop() void wxAppConsoleBase::CleanUp() { - if ( m_mainLoop ) - { - delete m_mainLoop; - m_mainLoop = NULL; - } + wxDELETE(m_mainLoop); } // ---------------------------------------------------------------------------- @@ -264,7 +290,7 @@ wxAppTraits *wxAppConsoleBase::GetTraits() { m_traits = CreateTraits(); - wxASSERT_MSG( m_traits, _T("wxApp::CreateTraits() failed?") ); + wxASSERT_MSG( m_traits, wxT("wxApp::CreateTraits() failed?") ); } return m_traits; @@ -319,21 +345,45 @@ bool wxAppConsoleBase::Dispatch() bool wxAppConsoleBase::Yield(bool onlyIfNeeded) { wxEventLoopBase * const loop = wxEventLoopBase::GetActive(); + if ( loop ) + return loop->Yield(onlyIfNeeded); - return loop && loop->Yield(onlyIfNeeded); + wxScopedPtr tmpLoop(CreateMainLoop()); + return tmpLoop->Yield(onlyIfNeeded); } void wxAppConsoleBase::WakeUpIdle() { - if ( m_mainLoop ) - m_mainLoop->WakeUp(); + wxEventLoopBase * const loop = wxEventLoopBase::GetActive(); + + if ( loop ) + loop->WakeUp(); } bool wxAppConsoleBase::ProcessIdle() { - wxEventLoopBase * const loop = wxEventLoopBase::GetActive(); + // synthesize an idle event and check if more of them are needed + wxIdleEvent event; + event.SetEventObject(this); + ProcessEvent(event); + +#if wxUSE_LOG + // flush the logged messages if any (do this after processing the events + // which could have logged new messages) + wxLog::FlushActive(); +#endif + + // Garbage collect all objects previously scheduled for destruction. + DeletePendingObjects(); + + return event.MoreRequested(); +} - return loop && loop->ProcessIdle(); +bool wxAppConsoleBase::UsesEventLoop() const +{ + // in console applications we don't know whether we're going to have an + // event loop so assume we won't -- unless we already have one running + return wxEventLoopBase::GetActive() != NULL; } // ---------------------------------------------------------------------------- @@ -428,43 +478,43 @@ void wxAppConsoleBase::ResumeProcessingOfPendingEvents() void wxAppConsoleBase::ProcessPendingEvents() { - if (!m_bDoPendingEventProcessing) - return; + if ( m_bDoPendingEventProcessing ) + { + wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker); - wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker); + wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(), + "this helper list should be empty" ); - wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(), - "this helper list should be empty" ); + // iterate until the list becomes empty: the handlers remove themselves + // from it when they don't have any more pending events + while (!m_handlersWithPendingEvents.IsEmpty()) + { + // In ProcessPendingEvents(), new handlers might be added + // and we can safely leave the critical section here. + wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker); - // iterate until the list becomes empty: the handlers remove themselves - // from it when they don't have any more pending events - while (!m_handlersWithPendingEvents.IsEmpty()) - { - // In ProcessPendingEvents(), new handlers might be added - // and we can safely leave the critical section here. - wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker); + // NOTE: we always call ProcessPendingEvents() on the first event handler + // with pending events because handlers auto-remove themselves + // from this list (see RemovePendingEventHandler) if they have no + // more pending events. + m_handlersWithPendingEvents[0]->ProcessPendingEvents(); - // NOTE: we always call ProcessPendingEvents() on the first event handler - // with pending events because handlers auto-remove themselves - // from this list (see RemovePendingEventHandler) if they have no - // more pending events. - m_handlersWithPendingEvents[0]->ProcessPendingEvents(); + wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker); + } - wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker); - } + // now the wxHandlersWithPendingEvents is surely empty; however some event + // handlers may have moved themselves into wxHandlersWithPendingDelayedEvents + // because of a selective wxYield call in progress. + // Now we need to move them back to wxHandlersWithPendingEvents so the next + // call to this function has the chance of processing them: + if (!m_handlersWithPendingDelayedEvents.IsEmpty()) + { + WX_APPEND_ARRAY(m_handlersWithPendingEvents, m_handlersWithPendingDelayedEvents); + m_handlersWithPendingDelayedEvents.Clear(); + } - // now the wxHandlersWithPendingEvents is surely empty; however some event - // handlers may have moved themselves into wxHandlersWithPendingDelayedEvents - // because of a selective wxYield call in progress. - // Now we need to move them back to wxHandlersWithPendingEvents so the next - // call to this function has the chance of processing them: - if (!m_handlersWithPendingDelayedEvents.IsEmpty()) - { - WX_APPEND_ARRAY(m_handlersWithPendingEvents, m_handlersWithPendingDelayedEvents); - m_handlersWithPendingDelayedEvents.Clear(); + wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker); } - - wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker); } void wxAppConsoleBase::DeletePendingEvents() @@ -482,6 +532,50 @@ void wxAppConsoleBase::DeletePendingEvents() wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker); } +// ---------------------------------------------------------------------------- +// delayed objects destruction +// ---------------------------------------------------------------------------- + +bool wxAppConsoleBase::IsScheduledForDestruction(wxObject *object) const +{ + return wxPendingDelete.Member(object); +} + +void wxAppConsoleBase::ScheduleForDestruction(wxObject *object) +{ + if ( !UsesEventLoop() ) + { + // we won't be able to delete it later so do it right now + delete object; + return; + } + //else: we either already have or will soon start an event loop + + if ( !wxPendingDelete.Member(object) ) + wxPendingDelete.Append(object); +} + +void wxAppConsoleBase::DeletePendingObjects() +{ + wxList::compatibility_iterator node = wxPendingDelete.GetFirst(); + while (node) + { + wxObject *obj = node->GetData(); + + // remove it from the list first so that if we get back here somehow + // during the object deletion (e.g. wxYield called from its dtor) we + // wouldn't try to delete it the second time + if ( wxPendingDelete.Member(obj) ) + wxPendingDelete.Erase(node); + + delete obj; + + // Deleting one object may have deleted other pending + // objects, so start from beginning of list again. + node = wxPendingDelete.GetFirst(); + } +} + // ---------------------------------------------------------------------------- // exception handling // ---------------------------------------------------------------------------- @@ -645,7 +739,7 @@ bool wxAppConsoleBase::CheckBuildOptions(const char *optionsSignature, wxString progName = wxString::FromAscii(componentName); wxString msg; - msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."), + msg.Printf(wxT("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."), lib.c_str(), progName.c_str(), prog.c_str()); wxLogFatalError(msg.c_str()); @@ -733,16 +827,6 @@ bool wxConsoleAppTraitsBase::HasStderr() return true; } -void wxConsoleAppTraitsBase::ScheduleForDestroy(wxObject *object) -{ - delete object; -} - -void wxConsoleAppTraitsBase::RemoveFromPendingDelete(wxObject * WXUNUSED(object)) -{ - // nothing to do -} - // ---------------------------------------------------------------------------- // wxAppTraits // ---------------------------------------------------------------------------- @@ -787,22 +871,19 @@ void WXDLLIMPEXP_BASE wxMutexGuiLeave() bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal) { #if wxDEBUG_LEVEL - wxString msg = msgOriginal; + wxString msg; #if wxUSE_STACKWALKER -#if !defined(__WXMSW__) - // on Unix stack frame generation may take some time, depending on the - // size of the executable mainly... warn the user that we are working - wxFprintf(stderr, wxT("[Debug] Generating a stack trace... please wait")); - fflush(stderr); -#endif - const wxString stackTrace = GetAssertStackTrace(); if ( !stackTrace.empty() ) - msg << _T("\n\nCall stack:\n") << stackTrace; + { + msg << wxT("\n\nCall stack:\n") << stackTrace; + + wxMessageOutputDebug().Output(msg); + } #endif // wxUSE_STACKWALKER - return DoShowAssertDialog(msg); + return DoShowAssertDialog(msgOriginal + msg); #else // !wxDEBUG_LEVEL wxUnusedVar(msgOriginal); @@ -814,6 +895,15 @@ bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal) wxString wxAppTraitsBase::GetAssertStackTrace() { #if wxDEBUG_LEVEL + +#if !defined(__WXMSW__) + // on Unix stack frame generation may take some time, depending on the + // size of the executable mainly... warn the user that we are working + wxFprintf(stderr, "Collecting stack trace information, please wait..."); + fflush(stderr); +#endif // !__WXMSW__ + + wxString stackTrace; class StackDump : public wxStackWalker @@ -828,29 +918,29 @@ wxString wxAppTraitsBase::GetAssertStackTrace() { m_stackTrace << wxString::Format ( - _T("[%02d] "), + wxT("[%02d] "), wx_truncate_cast(int, frame.GetLevel()) ); wxString name = frame.GetName(); if ( !name.empty() ) { - m_stackTrace << wxString::Format(_T("%-40s"), name.c_str()); + m_stackTrace << wxString::Format(wxT("%-40s"), name.c_str()); } else { - m_stackTrace << wxString::Format(_T("%p"), frame.GetAddress()); + m_stackTrace << wxString::Format(wxT("%p"), frame.GetAddress()); } if ( frame.HasSourceLocation() ) { - m_stackTrace << _T('\t') + m_stackTrace << wxT('\t') << frame.GetFileName() - << _T(':') + << wxT(':') << frame.GetLine(); } - m_stackTrace << _T('\n'); + m_stackTrace << wxT('\n'); } private: @@ -936,6 +1026,10 @@ wxDefaultAssertHandler(const wxString& file, const wxString& cond, const wxString& msg) { + // If this option is set, we should abort immediately when assert happens. + if ( wxSystemOptions::GetOptionInt("exit-on-assert") ) + abort(); + // FIXME MT-unsafe static int s_bInAssert = 0; @@ -965,6 +1059,11 @@ wxDefaultAssertHandler(const wxString& file, wxAssertHandler_t wxTheAssertHandler = wxDefaultAssertHandler; +void wxSetDefaultAssertHandler() +{ + wxTheAssertHandler = wxDefaultAssertHandler; +} + void wxOnAssert(const wxString& file, int line, const wxString& func, @@ -1082,7 +1181,7 @@ bool DoShowAssertDialog(const wxString& msg) wxT("You can also choose [Cancel] to suppress ") wxT("further warnings."); - switch ( ::MessageBox(NULL, msgDlg.wx_str(), _T("wxWidgets Debug Alert"), + switch ( ::MessageBox(NULL, msgDlg.wx_str(), wxT("wxWidgets Debug Alert"), MB_YESNOCANCEL | MB_ICONSTOP ) ) { case IDYES: @@ -1096,14 +1195,10 @@ bool DoShowAssertDialog(const wxString& msg) //case IDNO: nothing to do } #else // !__WXMSW__ - wxFprintf(stderr, wxT("%s\n"), msg.c_str()); - fflush(stderr); - - // TODO: ask the user to enter "Y" or "N" on the console? - wxTrap(); + wxUnusedVar(msg); #endif // __WXMSW__/!__WXMSW__ - // continue with the asserts + // continue with the asserts by default return false; } @@ -1129,16 +1224,16 @@ void ShowAssertDialog(const wxString& file, // add the function name, if any if ( !func.empty() ) - msg << _T(" in ") << func << _T("()"); + msg << wxT(" in ") << func << wxT("()"); // and the message itself if ( !msgUser.empty() ) { - msg << _T(": ") << msgUser; + msg << wxT(": ") << msgUser; } else // no message given { - msg << _T('.'); + msg << wxT('.'); } #if wxUSE_THREADS @@ -1146,27 +1241,15 @@ void ShowAssertDialog(const wxString& file, // since dialogs cannot be displayed if ( !wxThread::IsMain() ) { - msg += wxT(" [in child thread]"); - -#if defined(__WXMSW__) && !defined(__WXMICROWIN__) - msg << wxT("\r\n"); - OutputDebugString(msg.wx_str()); -#else - // send to stderr - wxFprintf(stderr, wxT("%s\n"), msg.c_str()); - fflush(stderr); -#endif - // He-e-e-e-elp!! we're asserting in a child thread - wxTrap(); + msg += wxString::Format(" [in thread %lx]", wxThread::GetCurrentId()); } - else #endif // wxUSE_THREADS + // log the assert in any case + wxMessageOutputDebug().Output(msg); + if ( !s_bNoAsserts ) { - // send it to the normal log destination - wxLogDebug(_T("%s"), msg.c_str()); - if ( traits ) { // delegate showing assert dialog (if possible) to that class