On Tue, Oct 11, 2016 at 11:23:13AM -0400, Dawid Zamirski wrote:
On Tue, 2016-10-11 at 16:22 +0200, Martin Kletzander wrote:On Wed, Sep 28, 2016 at 01:41:35PM -0400, Dawid Zamirski wrote: > > * _pfnUnitilalize decrements connectionCount in g_pVBoxGlobalData > and > once it is down to 0, it calls pfnComUnitialize and > g_pVBoxGlobalData if free'd. This ensures that pfnComInitialize > and > pfnComUnitialize pair is called only once, even when multiple > concurrent connections are in use.That's not true if there is a connection being made while it is being free()d or it's being allocated in two threads, etc. Unless I missed something, that is.On a second thought, seeing how both _pfnInitialize and _pfnUnintialize (each called in virConnectOpen/Close respectively) obtain a mutex on g_pVBoxGlobalData, I think my original statement holds true, that is, ignoring the unsafe allocation of the global as you pointed out earlier.
They can't take mutex on g_pVBoxGlobalData if it is not initialized (allocated) yet. Or is there another one?
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