Re: [PATCH] monitor: Add `clear` command

["Dr. David Alan Gilbert" <dave@treblig.org>]

* AlanoSong@163.com (AlanoSong@163.com) wrote:
> The monitor screen can be cluttered after executing commands
> like `info qtree`. It is useful to have a command to clear
> current screen, just like linux `clear` command do.
> 
> This patch has been tested under monitors using stdio, vc,
> tcp socket, unix socket and serial interfaces.
> 
> Signed-off-by: Alano Song <AlanoSong@163.com>

Does typing ctrl-l not do it for you in your terminal?

Dave

> ---
>  hmp-commands.hx       | 14 ++++++++++++++
>  include/monitor/hmp.h |  1 +
>  monitor/hmp-cmds.c    |  5 +++++
>  3 files changed, 20 insertions(+)
> 
> diff --git a/hmp-commands.hx b/hmp-commands.hx
> index 5cc4788f12..95f9166732 100644
> --- a/hmp-commands.hx
> +++ b/hmp-commands.hx
> @@ -20,6 +20,20 @@ SRST
>    Show the help for all commands or just for command *cmd*.
>  ERST
>  
> +    {
> +        .name       = "clear",
> +        .args_type  = "",
> +        .params     = "",
> +        .help       = "clear the monitor screen",
> +        .cmd        = hmp_clear,
> +        .flags      = "p",
> +    },
> +
> +SRST
> +``clear``
> +  Clear the monitor screen.
> +ERST
> +
>      {
>          .name       = "commit",
>          .args_type  = "device:B",
> diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
> index e222bea60c..9b66458d21 100644
> --- a/include/monitor/hmp.h
> +++ b/include/monitor/hmp.h
> @@ -165,6 +165,7 @@ void hmp_trace_event(Monitor *mon, const QDict *qdict);
>  void hmp_trace_file(Monitor *mon, const QDict *qdict);
>  void hmp_info_trace_events(Monitor *mon, const QDict *qdict);
>  void hmp_help(Monitor *mon, const QDict *qdict);
> +void hmp_clear(Monitor *mon, const QDict *qdict);
>  void hmp_info_help(Monitor *mon, const QDict *qdict);
>  void hmp_info_sync_profile(Monitor *mon, const QDict *qdict);
>  void hmp_info_history(Monitor *mon, const QDict *qdict);
> diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
> index bc26b39d70..3e9485478e 100644
> --- a/monitor/hmp-cmds.c
> +++ b/monitor/hmp-cmds.c
> @@ -218,6 +218,11 @@ void hmp_help(Monitor *mon, const QDict *qdict)
>      hmp_help_cmd(mon, qdict_get_try_str(qdict, "name"));
>  }
>  
> +void hmp_clear(Monitor *mon, const QDict *qdict)
> +{
> +    monitor_printf(mon, "\x1b[3J\x1b[2J\x1b[H");
> +}
> +
>  void hmp_info_help(Monitor *mon, const QDict *qdict)
>  {
>      hmp_help_cmd(mon, "info");
> -- 
> 2.43.0
> 
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/