Try to blind-solve cppunittester hangs on Windows

... calling OleInitialize early in sal_main to initialize COM and concurrency.

Seeing intermittent hangs in main thread in CAPNDataObject::GetData calling
m_rIDataObjectOrg->GetData, and the inner stack waiting objects in the code
doing apartment switching (I forgot to save a stack to paste unfortunately),
I suspect that being related to incorrect concurrency model. OleInitialize
docs [1] mention:

Applications that use the following functionality must call OleInitialize
before calling any other function in the COM library:

* Clipboard
* Drag and Drop
* Object linking and embedding (OLE)
* In-place activation

...

Because OLE operations are not thread-safe, OleInitialize specifies the
concurrency model as single-thread apartment.

CoInitializeEx sets COINIT_MULTITHREADED by default, so possibly that might
get called somewhere before clipboard/OLE code is called. I hope that this
change would fix those hangs.

[1] https://docs.microsoft.com/en-us/windows/win32/api/ole2/nf-ole2-oleinitialize

Change-Id: I7213c9d6cb4bd0691a3ce355995157797d7db93f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/94675
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

0 files changed, 0 insertions, 0 deletions