• Jan D's avatar
    If kbd_buffer is becoming full, stop reading until it drains (Bug#6571). · cb768704
    Jan D authored
    * keyboard.c (input_available_signal): Declare.
    (kbd_buffer_nr_stored): New function.
    (kbd_buffer_store_event_hold): If kbd_buffer_nr_stored returns
    more than KBD_BUFFER_SIZE/2, stop reding input (Bug#6571).
    (kbd_buffer_get_event): If input is suspended and kbd_buffer_nr_stored
    returns less than KBD_BUFFER_SIZE/4, resume reding input (Bug#6571).
    (tty_read_avail_input): If input is on hold, return.
    Don't read more that free slots in kbd_buffer (Bug#6571).
    
    * process.h (hold_keyboard_input, unhold_keyboard_input)
    (kbd_on_hold_p): Declare.
    
    * process.c (kbd_is_on_hold): New variable.
    (hold_keyboard_input, unhold_keyboard_input, kbd_on_hold_p): New
    functions.
    (wait_reading_process_output): If kbd_on_hold_p returns non-zero,
    select on empty input mask.
    (init_process): Initialize kbd_is_on_hold to 0.
    cb768704
process.h 6.89 KB