fcntl_dupfd

os::kernel::syscall::fcntl

Function fcntl_dupfd 

Source 
fn fcntl_dupfd(
    task: &Arc<SpinLock<TaskStruct>>,
    old_fd: usize,
    min_fd: usize,
    cloexec: bool,
) -> isize
Expand description

F_DUPFD / F_DUPFD_CLOEXEC 的辅助函数