Jeffrey,
The purpose of the CreateToolhelp32Snapshot function is to permit
walking data structures that are constantly changing by creating a
read-only copy that will not change. The returned HANDLE points to a
unique snapshot. Walking the contents of the data structures in this
snapshot is thread safe.
Has anyone else faced such RAND_poll() related crash before ?
Yes.
Where was it then? Point is that if above (with snapshot being
read-only copy) held true, then we wouldn't have this discussion,
would we? Or at least switching to TH32CS_SNAPPROCESS wouldn't make
difference... I see no other option then to assume that either
snapshot is not really a snapshot or CreateToolhelp32Snapshot itself
is not thread-safe.
I don't have enough information to perform the analysis.
As documented, CreateToolhelp32Snapshot is supposed to create a
read-only snapshot.
Hence the reason I asked for the minidump.
Yes, of course. It's just that as you answered "yes" to question "has
anyone else had problem" I assumed that you ran into it at some point
too. I mean my "where was it" targeted you as potential "somebody
else":-) A.
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