OVMS3/OVMS.V3/components/duktape/config/feature-options/DUK_OPT_SETJMP.yaml

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define: DUK_OPT_SETJMP
introduced: 1.1.0
removed: 1.5.0
tags:
- portability
description: >
Force setjmp/longjmp for long control transfers.
The default long control transfer provider is setjmp/longjmp because it
is the most portable option. When a better provider is known for a platform,
Duktape may default to that (e.g. _setjmp/_longjmp is the default for
OSX/iPhone, see GH-55). With this feature option you can force Duktape to
explicitly use setjmp/longjmp even in these cases.
The downside of setjmp/longjmp is that signal mask saving behavior is not
specified and varies between platforms. Signal mask saving may have a
significant performance impact so you may want to force a specific provider
if performance matters for your application.