kernel::object::capability::file::syscall

Function sys_file_seek

Source 
pub fn sys_file_seek(trapframe: &mut Trapframe) -> usize
Expand description

System call for seeking within a file

§Arguments

  • handle: Handle to the KernelObject (must support FileObject)
  • offset: Offset for seek operation
  • whence: Seek origin (0=start, 1=current, 2=end)

§Returns

  • On success: new position in file
  • On error: usize::MAX