[2/4] gdb: remove use of iterate_over_inferiors in mi/mi-interp.c

  Replace it with a range-based for.  I figured that in the hypothetical case
where there are multiple inferiors, we only need to configure the terminal and
flush the output once, so I have moved these out of the loop.

gdb/ChangeLog:

	* mi/mi-interp.c (report_initial_inferior): Remove.
	(mi_interp::init): Use range-based for to iterate over inferiors.
---
 gdb/mi/mi-interp.c | 40 ++++++++++++++++------------------------
 1 file changed, 16 insertions(+), 24 deletions(-)
  

On Wednesday, January 15, 2020 8:12 PM, Simon Marchi wrote:
> Replace it with a range-based for.  I figured that in the hypothetical case

> where there are multiple inferiors, we only need to configure the terminal and

> flush the output once, so I have moved these out of the loop.

> 

> gdb/ChangeLog:

> 

> 	* mi/mi-interp.c (report_initial_inferior): Remove.

> 	(mi_interp::init): Use range-based for to iterate over inferiors.

> ---

>  gdb/mi/mi-interp.c | 40 ++++++++++++++++------------------------

>  1 file changed, 16 insertions(+), 24 deletions(-)

> 

> diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c

> index 2ac4c119961c..6f4f56849611 100644

> --- a/gdb/mi/mi-interp.c

> +++ b/gdb/mi/mi-interp.c

> @@ -91,8 +91,6 @@ static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr,

>  			       ssize_t len, const bfd_byte *myaddr);

>  static void mi_on_sync_execution_done (void);

> 

> -static int report_initial_inferior (struct inferior *inf, void *closure);

> -

>  /* Display the MI prompt.  */

> 

>  static void

> @@ -140,8 +138,22 @@ mi_interp::init (bool top_level)

>        /* The initial inferior is created before this function is

>  	 called, so we need to report it explicitly.  Use iteration in

>  	 case future version of GDB creates more than one inferior

> -	 up-front.  */

> -      iterate_over_inferiors (report_initial_inferior, mi);

> +	 up-front.

> +

> +         This function is called from mi_interpreter_init, and since


There is an 8-spaces/tab issue above.  And also, the comment piece "This
function is called from mi_interpreter_init, and" seems obsolete now.

Thanks,
-Baris

> +	 mi_inferior_added assumes that inferior is fully initialized

> +	 and top_level_interpreter_data is set, we cannot call

> +	 it here.  */

> +

> +      target_terminal::scoped_restore_terminal_state term_state;

> +      target_terminal::ours_for_output ();

> +

> +      for (inferior *inf : all_inferiors ())

> +	fprintf_unfiltered (mi->event_channel,

> +			    "thread-group-added,id=\"i%d\"",

> +			    inf->num);

> +

> +      gdb_flush (mi->event_channel);

>      }

>  }

> 

> @@ -1253,26 +1265,6 @@ mi_user_selected_context_changed (user_selected_what selection)

>      }

>  }

> 

> -static int

> -report_initial_inferior (struct inferior *inf, void *closure)

> -{

> -  /* This function is called from mi_interpreter_init, and since

> -     mi_inferior_added assumes that inferior is fully initialized

> -     and top_level_interpreter_data is set, we cannot call

> -     it here.  */

> -  struct mi_interp *mi = (struct mi_interp *) closure;

> -

> -  target_terminal::scoped_restore_terminal_state term_state;

> -  target_terminal::ours_for_output ();

> -

> -  fprintf_unfiltered (mi->event_channel,

> -		      "thread-group-added,id=\"i%d\"",

> -		      inf->num);

> -  gdb_flush (mi->event_channel);

> -

> -  return 0;

> -}

> -

>  ui_out *

>  mi_interp::interp_ui_out ()

>  {

> --

> 2.25.0


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