Enable explicitly initializating copy-on-write images#3964
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alexcrichton merged 1 commit intoApr 11, 2022
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This commit adds a method, `Module::initialize_copy_on_write_image`, which will explicitly create the copy-on-write image during the method call instead of lazily deferring it until the first instantiation of a module. Given the relative expense of creation of a memfd on Linux this can otherwise run the risk of unnaturally perturbing the time-of-instantiation of a module. Additionally whenever lazy initialization is provided in an API it's typically good practice to also have an optionally-called forced initialization.
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pchickey
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Mar 28, 2022
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This commit adds a method,
Module::initialize_copy_on_write_image,which will explicitly create the copy-on-write image during the method
call instead of lazily deferring it until the first instantiation of a
module. Given the relative expense of creation of a memfd on Linux this
can otherwise run the risk of unnaturally perturbing the
time-of-instantiation of a module. Additionally whenever lazy
initialization is provided in an API it's typically good practice to
also have an optionally-called forced initialization.