As we donot set any stack size for QThread and it looks like it runs out
of default stack size limit during long running operation. Hence would
like to measure the cumulative stack variables used in a thread so as to
set stack size of QThread accordingly.
It is possible to measure stack usage, but there is no fun in it. If
you're willing to use private QtQml API you can call stackProperties()
as declared in [1] to find an approximation of the stack boundaries. You
can then compare that with currentStackPointer(), conveniently defined
in the same file, to get your stack usage.
Mind that it's not really exact. See [2] for the implementation.
[1]
https://code.qt.io/cgit/qt/qtdeclarative.git/tree/src/qml/memory/qv4stacklimits_p.h
[2]
https://code.qt.io/cgit/qt/qtdeclarative.git/tree/src/qml/memory/qv4stacklimits.cpp
best regards,
Ulf Hermann
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