[PATCH 15/23] Make target_terminal_inferior/ours almost nops on non-main UIs

[Pedro Alves <palves at redhat dot com>]

Since we always run the inferior in the main console (unless set
inferior--tty), when some UI other than the main one calls
target_terminal_inferior/target_terminal_inferior, then we only
register/unregister the UI's input from the event loop, but leave the
main UI's terminal settings as is.
---
 gdb/target.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/gdb/target.c b/gdb/target.c
index 86e7074..81bcca1 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -490,6 +490,9 @@ target_terminal_inferior (void)
 
   delete_file_handler (ui->input_fd);
 
+  if (ui != main_ui)
+    return;
+
   if (terminal_state == terminal_is_inferior)
     return;
 
@@ -508,6 +511,9 @@ target_terminal_ours (void)
 
   add_file_handler (ui->input_fd, stdin_event_handler, ui);
 
+  if (ui != main_ui)
+    return;
+
   if (terminal_state == terminal_is_ours)
     return;
 
@@ -520,6 +526,11 @@ target_terminal_ours (void)
 void
 target_terminal_ours_for_output (void)
 {
+  struct ui *ui = current_ui;
+
+  if (ui != main_ui)
+    return;
+
   if (terminal_state != terminal_is_inferior)
     return;
   (*current_target.to_terminal_ours_for_output) (&current_target);
-- 
1.9.3