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From: Andrew Burgess <aburgess@redhat.com>
To: Simon Marchi via Gdb-patches <gdb-patches@sourceware.org>,
	gdb-patches@sourceware.org
Cc: Simon Marchi <simon.marchi@efficios.com>
Subject: Re: [PATCH 18/21] gdb: make interp_set a method of struct ui
Date: Tue, 12 Sep 2023 11:58:44 +0100	[thread overview]
Message-ID: <875y4fk68r.fsf@redhat.com> (raw)
In-Reply-To: <20230908190227.96319-19-simon.marchi@efficios.com>

Simon Marchi via Gdb-patches <gdb-patches@sourceware.org> writes:

> Move interp_set to ui::set_current_interpreter.
>
> Change-Id: I7e83ca7732bb6229a1e61dc0e3832f54c20c3f52
> ---
>  gdb/interps.c | 66 +++------------------------------------------------
>  gdb/ui.c      | 51 +++++++++++++++++++++++++++++++++++++++
>  gdb/ui.h      | 12 ++++++++++
>  3 files changed, 66 insertions(+), 63 deletions(-)
>
> diff --git a/gdb/interps.c b/gdb/interps.c
> index 18758f1f7af6..465c174ea794 100644
> --- a/gdb/interps.c
> +++ b/gdb/interps.c
> @@ -80,66 +80,6 @@ find_interp_factory (const char *name)
>    return nullptr;
>  }
>  
> -/* This sets the current interpreter to be INTERP.  If INTERP has not
> -   been initialized, then this will also run the init method.
> -
> -   The TOP_LEVEL parameter tells if this new interpreter is
> -   the top-level one.  The top-level is what is requested
> -   on the command line, and is responsible for reporting general
> -   notification about target state changes.  For example, if
> -   MI is the top-level interpreter, then it will always report
> -   events such as target stops and new thread creation, even if they
> -   are caused by CLI commands.  */
> -
> -static void
> -interp_set (ui *ui, struct interp *interp, bool top_level)
> -{
> -  struct interp *old_interp = ui->current_interpreter;
> -
> -  /* If we already have an interpreter, then trying to
> -     set top level interpreter is kinda pointless.  */
> -  gdb_assert (!top_level || !ui->current_interpreter);
> -  gdb_assert (!top_level || !ui->top_level_interpreter);
> -
> -  if (old_interp != NULL)
> -    {
> -      ui->m_current_uiout->flush ();
> -      old_interp->suspend ();
> -    }
> -
> -  ui->current_interpreter = interp;
> -  if (top_level)
> -    ui->top_level_interpreter = interp;
> -
> -  if (interpreter_p != interp->name ())
> -    interpreter_p = interp->name ();
> -
> -  bool warn_about_mi1 = false;
> -
> -  /* Run the init proc.  */
> -  if (!interp->inited)
> -    {
> -      interp->init (top_level);
> -      interp->inited = true;
> -
> -      if (streq (interp->name (), "mi1"))
> -	warn_about_mi1 = true;
> -    }
> -
> -  /* Do this only after the interpreter is initialized.  */
> -  ui->m_current_uiout = interp->interp_ui_out ();
> -
> -  /* Clear out any installed interpreter hooks/event handlers.  */
> -  clear_interpreter_hooks ();
> -
> -  interp->resume ();
> -
> -  if (warn_about_mi1)
> -    warning (_("MI version 1 is deprecated in GDB 13 and "
> -	       "will be removed in GDB 14.  Please upgrade "
> -	       "to a newer version of MI."));
> -}
> -
>  /* See interps.h.  */
>  
>  void
> @@ -151,7 +91,7 @@ set_top_level_interpreter (const char *name)
>    if (interp == NULL)
>      error (_("Interpreter `%s' unrecognized"), name);
>    /* Install it.  */
> -  interp_set (current_ui, interp, true);
> +  current_ui->set_current_interpreter (interp, true);
>  }
>  
>  void
> @@ -267,10 +207,10 @@ interpreter_exec_cmd (const char *args, int from_tty)
>    if (interp_to_use == NULL)
>      error (_("Could not find interpreter \"%s\"."), prules[0]);
>  
> -  interp_set (current_ui, interp_to_use, false);
> +  current_ui->set_current_interpreter (interp_to_use, false);
>    SCOPE_EXIT
>      {
> -      interp_set (current_ui, old_interp, false);
> +      current_ui->set_current_interpreter (old_interp, false);
>      };
>  
>    for (i = 1; i < nrules; i++)
> diff --git a/gdb/ui.c b/gdb/ui.c
> index 8c04dc92b89e..2db899eb9c31 100644
> --- a/gdb/ui.c
> +++ b/gdb/ui.c
> @@ -172,6 +172,57 @@ ui::lookup_interp (const char *name)
>  
>  /* See ui.h.  */
>  
> +void
> +ui::set_current_interpreter (interp *interp, bool top_level)
> +{
> +  struct interp *old_interp = this->current_interpreter;

Is there any way that we can assert something like:

  gdb_assert (this == interp->m_ui);

we maybe need an interp::mi() accessor function.

> +
> +  /* If we already have an interpreter, then trying to
> +     set top level interpreter is kinda pointless.  */
> +  gdb_assert (!top_level || !this->current_interpreter);
> +  gdb_assert (!top_level || !this->top_level_interpreter);
> +
> +  if (old_interp != NULL)
> +    {
> +      m_current_uiout->flush ();
> +      old_interp->suspend ();
> +    }
> +
> +  this->current_interpreter = interp;
> +  if (top_level)
> +    this->top_level_interpreter = interp;
> +
> +  if (interpreter_p != interp->name ())
> +    interpreter_p = interp->name ();
> +
> +  bool warn_about_mi1 = false;
> +
> +  /* Run the init proc.  */
> +  if (!interp->inited)
> +    {
> +      interp->init (top_level);
> +      interp->inited = true;
> +
> +      if (streq (interp->name (), "mi1"))
> +	warn_about_mi1 = true;
> +    }
> +
> +  /* Do this only after the interpreter is initialized.  */
> +  m_current_uiout = interp->interp_ui_out ();
> +
> +  /* Clear out any installed interpreter hooks/event handlers.  */
> +  clear_interpreter_hooks ();
> +
> +  interp->resume ();
> +
> +  if (warn_about_mi1)
> +    warning (_("MI version 1 is deprecated in GDB 13 and "
> +	       "will be removed in GDB 14.  Please upgrade "
> +	       "to a newer version of MI."));
> +}
> +
> +/* See ui.h.  */
> +
>  void
>  ui::unregister_file_handler ()
>  {
> diff --git a/gdb/ui.h b/gdb/ui.h
> index be89ab3d6848..4f6a32991d6d 100644
> --- a/gdb/ui.h
> +++ b/gdb/ui.h
> @@ -167,6 +167,18 @@ struct ui : public intrusive_list_node<ui>
>       interp_factory_register, return nullptr; otherwise return a pointer to
>       the interpreter.  */
>    interp *lookup_interp (const char *name);
> +
> +  /* This sets the current interpreter of this UI to be INTERP.  If INTERP has
> +     not been initialized, then this will also run the init method.
> +
> +     The TOP_LEVEL parameter tells if this new interpreter is

I know these aren't your words, but could we take this chance to update
this text to:

  The TOP_LEVEL parameter is true if this new interpreter is

which reads much nicer.

Thanks,
Andrew

> +     the top-level one.  The top-level is what is requested
> +     on the command line, and is responsible for reporting general
> +     notification about target state changes.  For example, if
> +     MI is the top-level interpreter, then it will always report
> +     events such as target stops and new thread creation, even if they
> +     are caused by CLI commands.  */
> +  void set_current_interpreter (interp *interp, bool top_level);
>  };
>  
>  /* The main UI.  This is the UI that is bound to stdin/stdout/stderr.
> -- 
> 2.42.0


  reply	other threads:[~2023-09-12 10:58 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-08 18:22 [PATCH 00/21] ui / interp cleansup Simon Marchi
2023-09-08 18:22 ` [PATCH 01/21] gdb: use intrusive_list for struct ui linked list Simon Marchi
2023-09-08 18:22 ` [PATCH 02/21] gdb: make interp_lookup_existing a method of struct ui Simon Marchi
2023-09-08 18:22 ` [PATCH 03/21] gdb: make interp_add " Simon Marchi
2023-09-08 18:22 ` [PATCH 04/21] gdb: make interp_lookup " Simon Marchi
2023-09-12  9:15   ` Andrew Burgess
2023-09-12 14:38     ` Simon Marchi
2023-09-08 18:22 ` [PATCH 05/21] gdb: remove ui:::add_interp and ui::lookup_existing_interp Simon Marchi
2023-09-08 18:23 ` [PATCH 06/21] gdb: uncover some current_ui uses in interp_set Simon Marchi
2023-09-08 18:23 ` [PATCH 07/21] gdb: add backlink to ui in interp Simon Marchi
2023-09-08 18:23 ` [PATCH 08/21] gdb: pass ui down to gdb_setup_readline and gdb_disable_readline Simon Marchi
2023-09-08 18:23 ` [PATCH 09/21] gdb/python: use m_ui instead of current_ui in dap_interp::init Simon Marchi
2023-09-08 18:23 ` [PATCH 10/21] gdb/mi: use m_ui instead of current_ui in mi_interp::init Simon Marchi
2023-09-08 18:23 ` [PATCH 11/21] gdb/cli: use m_ui instead of current_ui in cli_interp::resume Simon Marchi
2023-09-12 10:40   ` Andrew Burgess
2023-09-12 15:42     ` Simon Marchi
2023-09-08 18:23 ` [PATCH 12/21] gdb/tui: use m_ui instead of current_ui in tui_interp::resume Simon Marchi
2023-09-12 10:41   ` Andrew Burgess
2023-09-08 18:23 ` [PATCH 13/21] gdb/mi: use m_ui instead of current_ui in mi_interp::resume Simon Marchi
2023-09-12 10:44   ` Andrew Burgess
2023-09-12 16:36     ` Simon Marchi
2023-09-08 18:23 ` [PATCH 14/21] gdb/cli: use m_ui instead of current_ui in cli_interp::suspend Simon Marchi
2023-09-08 18:23 ` [PATCH 15/21] gdb/tui: use m_ui instead of current_ui in tui_interp::suspend Simon Marchi
2023-09-08 18:23 ` [PATCH 16/21] gdb/mi: use m_ui instead of current_ui in mi_interp::suspend Simon Marchi
2023-09-08 18:23 ` [PATCH 17/21] gdb: pass current_ui down to interp_set Simon Marchi
2023-09-12 10:54   ` Andrew Burgess
2023-09-12 17:17     ` Simon Marchi
2023-09-08 18:23 ` [PATCH 18/21] gdb: make interp_set a method of struct ui Simon Marchi
2023-09-12 10:58   ` Andrew Burgess [this message]
2023-09-12 17:23     ` Simon Marchi
2023-09-12 13:41   ` Tom Tromey
2023-09-12 17:32     ` Simon Marchi
2023-09-08 18:23 ` [PATCH 19/21] gdb: pass down current_ui to set_top_level_interpreter Simon Marchi
2023-09-11 15:15   ` Simon Marchi
2023-09-08 18:23 ` [PATCH 20/21] gdb: make set_top_level_interpreter a method of struct ui Simon Marchi
2023-09-12 11:20   ` Andrew Burgess
2023-09-12 17:41     ` Simon Marchi
2023-09-08 18:23 ` [PATCH 21/21] gdb: make top_level_interpreter " Simon Marchi
2023-09-12 11:35   ` Andrew Burgess
2023-09-12 17:54     ` Simon Marchi
2023-09-12 11:38 ` [PATCH 00/21] ui / interp cleansup Andrew Burgess
2023-09-12 17:51   ` Simon Marchi
2023-09-12 18:06   ` Tom Tromey

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