Function memory_max_unsafe 

pub fn memory_max_unsafe() -> Result<Option<u64>, ReadParseError>

Reads and parses the memory max file using unsafe code.

Safety

This function is unsafe because it uses std::str::from_utf8_unchecked, which can lead to undefined behavior if the content is not valid ASCII. However the Kernel doc states that attributes should be ASCII text files.

If the file content exceeds the buffer size (1024 bytes), only part of the file will be read, potentially causing incorrect parsing.

Errors

Returns an error if the memory max file could not be read.

Example

match memory_max_unsafe() {
    Ok(Some(v)) => println!("Max memory: {v}"),
    Ok(None) => println!("No max memory constraint"),
    Err(e) => println!("Failed to read and parse memory files: {e}"),
}