src/memory/file_handle.rs


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use crate::AyaFS;
use std::sync::atomic::Ordering;

impl AyaFS {
    pub(crate) fn allocate_file_descriptor(
        &mut self,
        inode_index: usize,
        read: bool,
        write: bool,
    ) -> u64 {
        let fd = self.next_file_handle.fetch_add(1, Ordering::SeqCst);
        self.file_handle_map.insert(fd, (inode_index, read, write));
        fd
    }

    pub(crate) fn get_inode_from_fd(&self, file_descriptor: u64) -> Option<(usize, bool, bool)> {
        self.file_handle_map.get(&file_descriptor).copied()
    }
}