Replace the sync_execution global with a new enum prompt_state tristate

[deliverable/binutils-gdb.git] / gdb / top.h

diff --git a/gdb/top.h b/gdb/top.h
index 2aa44080c9b57327d123c0f604e35166ef73e205..df96baa16729337ded733bfae9956cfa8fedd06e 100644 (file)
--- a/gdb/top.h
+++ b/gdb/top.h
@@ -25,6 +25,24 @@
 
 struct tl_interp_info;
 
+/* Prompt state.  */
+
+enum prompt_state
+{
+  /* The command line is blocked simulating synchronous execution.
+     This is used to implement the foreground execution commands
+     ('run', 'continue', etc.).  We won't display the prompt and
+     accept further commands until the execution is actually over.  */
+  PROMPT_BLOCKED,
+
+  /* The command finished; display the prompt before returning back to
+     the top level.  */
+  PROMPT_NEEDED,
+
+  /* We've displayed the prompt already, ready for input.  */
+  PROMPTED,
+};
+
 /* All about a user interface instance.  Each user interface has its
    own I/O files/streams, readline state, its own top level
    interpreter (for the main UI, this is the interpreter specified
@@ -91,6 +109,9 @@ struct ui
      it with the event loop.  */
   int input_fd;
 
+  /* See enum prompt_state's description.  */
+  enum prompt_state prompt_state;
+
   /* The fields below that start with "m_" are "private".  They're
      meant to be accessed through wrapper macros that make them look
      like globals.  */
@@ -145,6 +166,10 @@ extern void switch_thru_all_uis_next (struct switch_thru_all_uis *state);
        switch_thru_all_uis_cond (&STATE);              \
        switch_thru_all_uis_next (&STATE))
 
+/* Traverse over all UIs.  */
+#define ALL_UIS(UI)                            \
+  for (UI = ui_list; UI; UI = UI->next)                \
+
 /* Cleanup that restores the current UI.  */
 extern void restore_ui_cleanup (void *data);