If kbd_buffer is becoming full, stop reading until it drains (Bug#6571).

* 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.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 63b0dd0a53d..912a5a8d2f2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,24 @@
+2010-07-07  Jan Djärv  <jan.h.d@swipnet.se>
+
+        * 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.
+
+        * process.h (hold_keyboard_input, unhold_keyboard_input)
+        (kbd_on_hold_p): Declare.
+
+        * 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).
+
 2010-07-07  Eli Zaretskii  <eliz@gnu.org>
 
         * msdos.h: