tdf#125397: Fixes for threads and SolarMutex on iOS

We need to call SfxApplication::GetOrCreate() in lo_initialize() now.
Otherwise we will crash in sfx2. No idea why it worked earlier.

I think we want to avoid the "VCLXToolkit VCL main thread" ever
running in the iOS app. I don't think we had it running earlier, but
now for some reason it got started when creating a document from a
template, and that seemed to cause a hang.

Also, when creating a document from a template, lo_initialize() is
called from the app's real main thread (the one that the process
starts in). In that case we do want to release the SolarMutex after
InitVCL() if this was the first time we called InitVCL(). Awful crack.

Not really sure I fully understand all that is going on, but this
change does seem to fix recent problems... All this thread and
SolarMutex stuff is so incredibly fragile.

Change-Id: Ib04498ad199b64f27701f89d2df7003bca316406

1 files changed, 8 insertions, 1 deletions

diff --git a/toolkit/source/awt/vclxtoolkit.cxx b/toolkit/source/awt/vclxtoolkit.cxx
index 4026093f997c..e0146208eb7a 100644
--- a/toolkit/source/awt/vclxtoolkit.cxx
+++ b/toolkit/source/awt/vclxtoolkit.cxx
@@ -586,6 +586,8 @@ namespace
     }
 }
 
+#ifndef IOS
+
 static sal_Int32                            nVCLToolkitInstanceCount = 0;
 static bool                                 bInitedByVCLToolkit = false;
 
@@ -674,6 +676,8 @@ static void SAL_CALL ToolkitWorkerFunction( void* pArgs )
 }
 }
 
+#endif
+
 // constructor, which might initialize VCL
 VCLXToolkit::VCLXToolkit():
     cppu::WeakComponentImplHelper<
@@ -691,6 +695,7 @@ VCLXToolkit::VCLXToolkit():
     hSvToolsLib = nullptr;
     fnSvtCreateWindow = nullptr;
 
+#ifndef IOS
     osl::Guard< osl::Mutex > aGuard( getInitMutex() );
     nVCLToolkitInstanceCount++;
     if( ( nVCLToolkitInstanceCount == 1 ) && ( !Application::IsInMain() ) )
@@ -699,6 +704,7 @@ VCLXToolkit::VCLXToolkit():
         CreateMainLoopThread( ToolkitWorkerFunction, this );
         getInitCondition().wait();
     }
+#endif
 }
 
 void SAL_CALL VCLXToolkit::disposing()
@@ -712,6 +718,7 @@ void SAL_CALL VCLXToolkit::disposing()
     }
 #endif
 
+#ifndef IOS
     {
         osl::Guard< osl::Mutex > aGuard( getInitMutex() );
         if( --nVCLToolkitInstanceCount == 0 )
@@ -724,7 +731,7 @@ void SAL_CALL VCLXToolkit::disposing()
             }
         }
     }
-
+#endif
     if (m_bEventListener)
     {
         ::Application::RemoveEventListener(m_aEventListenerLink);