fn open_mem_fd_if_needed(&mut self) {
        if !self.vm().mem_fd().is_open() {
            self.open_mem_fd();
        }
    }
/// Calls open_mem_fd if this task's AddressSpace doesn't already have one.
Calls open_mem_fd if this task's AddressSpace doesn't already have one.
Calls open_mem_fd if this task ' s AddressSpace doesn ' t already have one .
fn open_mem_fd_if_needed(&mut self) {
        if !self.vm().mem_fd().is_open() {
            self.open_mem_fd();
        }
    }
fn open_mem_fd_if_needed ( & mut self ) { if ! self . vm ( ) . mem_fd ( ) . is_open ( ) { self . open_mem_fd ( ) ; } }
Calls open_mem_fd if this task's AddressSpace doesn't already have one.
Calls open_mem_fd if this task ' s AddressSpace doesn ' t already have one .
&mut self