diff options
| author | Michael Stahl <mstahl@redhat.com> | 2017-03-11 00:44:21 +0100 |
|---|---|---|
| committer | Michael Stahl <mstahl@redhat.com> | 2017-03-11 10:08:06 +0000 |
| commit | 9899ffd244dd367ba69dffe1f21f4f0222064a46 (patch) | |
| tree | 5b0a076e2216e9e189b811ce2fcffc23af5910e5 /test/source/vclbootstrapprotector.cxx | |
| parent | aa204f1c09a760d6753c408376ab7307fb13ad91 (diff) | |
comphelper: fix MSVC hang in ThreadPool::shutdown()
Commit aa68c99d88fd7abe08c4aee5206c859a0cdba38e added some code using
std::condition_variable to comphelper.
Built with MSVC 2017, this causes many cppunittester.exe processes to
deadlock in ThreadPool::shutdown():
maTasksChanged.notify_all();
This ultimately calls NtReleaseKeyedEvent(), which never returns.
The reason appears to be a bug in Windows 7, for which a "hotfix"[1] is
avaiable here, but it's apparently not distributed via Windows Update
so we likely can't rely on users or even developers having this installed.
However, the documentation of DllMain[2] and ExitProcess[3] indicates
that during shutdown, by the time global destructors are invoked
all threads other than the one that called ExitProcess have already
been terminated.
Returning from main() implicitly calls ExitProcess [4].
As it turns out the problem only happens for some CppUnitTests because
soffice.bin will call ThreadPool::shutdown() from Desktop::doShutdown()
while it is still safe.
[1] http://support.microsoft.com/kb/2582203
[2] https://msdn.microsoft.com/en-US/library/windows/desktop/ms682583(v=vs.85).aspx
[3] https://msdn.microsoft.com/en-us/library/windows/desktop/ms682658(v=vs.85).aspx
[4] https://blogs.msdn.microsoft.com/oldnewthing/20100827-00/?p=13023
Change-Id: I6137461ca7efe9a5fbe4f8f8478fb96de3570469
Reviewed-on: https://gerrit.libreoffice.org/35066
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Diffstat (limited to 'test/source/vclbootstrapprotector.cxx')
| -rw-r--r-- | test/source/vclbootstrapprotector.cxx | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/test/source/vclbootstrapprotector.cxx b/test/source/vclbootstrapprotector.cxx index 38c51d990922..2218c8fff2c0 100644 --- a/test/source/vclbootstrapprotector.cxx +++ b/test/source/vclbootstrapprotector.cxx @@ -14,6 +14,7 @@ #include <sal/types.h> #include <test/setupvcl.hxx> #include <vcl/svapp.hxx> +#include <comphelper/threadpool.hxx> #include <isheadless.hxx> @@ -28,6 +29,8 @@ public: private: virtual ~Protector() override { DeInitVCL(); + // for the 6 tests that use it + comphelper::ThreadPool::getSharedOptimalPool().shutdown(); } virtual bool protect( |