test: keep cif structs alive during gc#380
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Up until now, test/callback.js assumed that the `cb.cif` object would not be garbage collected and was available to `Callback::Invoke`. That has never been a valid assumption, but as of nodejs/node#12141 Buffers created with `new Buffer(n)` each have their own `ArrayBuffer` which gets garbage-collected much more easily, which in turn would crash the test suite here. To (lazy-)fix this, assign `cb._cif` to some global variable that is guaranteed to stay alive.
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Ping @TooTallNate ? It would be cool to see this merged, or addressed in some other way, otherwise I fear that this module might need to be removed from CITGM coverage… |
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I'm sorry for not getting to this sooner. I'm not a fan of this (lazy-)fix, so this fell off of my radar. Really this should be fixed in |
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Up until now, test/callback.js assumed that the `cb.cif` object would not be garbage collected and was available to `Callback::Invoke`. That has never been a valid assumption, but as of nodejs/node#12141 Buffers created with `new Buffer(n)` each have their own `ArrayBuffer` which gets garbage-collected much more easily, which in turn would crash the test suite here. To (lazy-)fix this, assign `cb._cif` to some global variable that is guaranteed to stay alive. PR-URL: node-ffi#380
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Up until now, test/callback.js assumed that the
cb.cifobjectwould not be garbage collected and was available to
Callback::Invoke.That has never been a valid assumption, but as of
nodejs/node#12141 Buffers created with
new Buffer(n)each have their ownArrayBufferwhich getsgarbage-collected much more easily, which in turn would
crash the test suite here.
To (lazy-)fix this, assign
cb._cifto some global variable that isguaranteed to stay alive.