INNER CODE UNIT · Rust

forward_stderr

jub0t/Concat · src/crates/concat-android/src/lib.rs:68

    fn forward_stderr() {
        use std::os::fd::FromRawFd;
        let mut ends = [0i32; 2];
        // SAFETY: plain libc calls on descriptors this function owns; the
        // read end is handed to exactly one File.
        let reader = unsafe {
            if libc::pipe(ends.as_mut_ptr()) != 0 {
                return;
            }
            if libc::dup2(ends[1], libc::STDERR_FILENO) < 0 {
                libc::close(ends[0]);
                libc::close(ends[1]);
                return;
            }
            libc::close(ends[1]);
            std::fs::File::from_raw_fd(ends[0])
        };
        std::thread::Builder::new()

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