fix(c-api) Memory leak around wasm_$name_vec_delete
#1853
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This patch does several things: 1. It applies our Rust patterns for C API by replacing the raw pointer by `Option<Box<T>>`, 2. It allows `wasm_$name_vec_delete` to handle null pointer, 3. Because it takes ownership of the `wasm_$name_vec_t`, the pointer is correctly dropped (which fix the memory leak).
Hywan
commented
Dec 1, 2020
| let _ = Vec::from_raw_parts(subject.data, subject.size, subject.size); | ||
| } | ||
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| ::std::ptr::drop_in_place(Box::into_raw(subject)); |
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Without that, everything compiles nicely but we have a free error when executing a C program.
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Dec 1, 2020
1855: Fix memory leak in wat2wasm function r=MarkMcCaskey a=MarkMcCaskey Alternative to #1853 ; Found with @nlewycky # Review - [x] Add a short description of the the change to the CHANGELOG.md file Co-authored-by: Mark McCaskey <mark@wasmer.io> Co-authored-by: Mark McCaskey <5770194+MarkMcCaskey@users.noreply.github.com>
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Closing this one as #1855 got merged and is an alternative to this patch. |
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