Re: [Qemu-devel] [PATCH] watchdog: Export watchdog actions list.

[Paolo Bonzini <pbonzini@redhat.com>]

Il 15/06/2014 12:03, Hani Benhabiles ha scritto:
> Also, use it instead of using hard-coded values.
>
> Signed-off-by: Hani Benhabiles <hani@linux.com>
> ---
> Should have been part of the last monitor completion series, but better late
> then never. :)
>
>  hw/watchdog/watchdog.c    | 35 +++++++++++++++++++----------------
>  include/sysemu/watchdog.h |  6 ++++++
>  monitor.c                 | 19 ++++++++++++-------
>  3 files changed, 37 insertions(+), 23 deletions(-)
>
> diff --git a/hw/watchdog/watchdog.c b/hw/watchdog/watchdog.c
> index f28161b..3bea6fe 100644
> --- a/hw/watchdog/watchdog.c
> +++ b/hw/watchdog/watchdog.c
> @@ -39,6 +39,16 @@
>  static int watchdog_action = WDT_RESET;
>  static QLIST_HEAD(watchdog_list, WatchdogTimerModel) watchdog_list;
>
> +struct watchdog_action watchdog_actions[] = {
> +    { "reset",  WDT_RESET },
> +    { "shutdown", WDT_SHUTDOWN },
> +    { "poweroff", WDT_POWEROFF },
> +    { "pause", WDT_PAUSE },
> +    { "debug", WDT_DEBUG },
> +    { "none", WDT_NONE },
> +    { NULL, 0 },
> +};

The QAPI event series instead used a QAPI enum and renamed this to 
something like WATCHDOG_ACTION_{RESET,SHUTDOWN,...} at the same time.

I guess we can wait for those patches to go in.

Paolo

>  void watchdog_add_model(WatchdogTimerModel *model)
>  {
>      QLIST_INSERT_HEAD(&watchdog_list, model, entry);
> @@ -83,22 +93,15 @@ int select_watchdog(const char *p)
>
>  int select_watchdog_action(const char *p)
>  {
> -    if (strcasecmp(p, "reset") == 0)
> -        watchdog_action = WDT_RESET;
> -    else if (strcasecmp(p, "shutdown") == 0)
> -        watchdog_action = WDT_SHUTDOWN;
> -    else if (strcasecmp(p, "poweroff") == 0)
> -        watchdog_action = WDT_POWEROFF;
> -    else if (strcasecmp(p, "pause") == 0)
> -        watchdog_action = WDT_PAUSE;
> -    else if (strcasecmp(p, "debug") == 0)
> -        watchdog_action = WDT_DEBUG;
> -    else if (strcasecmp(p, "none") == 0)
> -        watchdog_action = WDT_NONE;
> -    else
> -        return -1;
> -
> -    return 0;
> +    int i;
> +
> +    for (i = 0; watchdog_actions[i].name; i++) {
> +        if (!strcasecmp(p, watchdog_actions[i].name)) {
> +            watchdog_action = watchdog_actions[i].action;
> +            return 0;
> +        }
> +    }
> +    return -1;
>  }
>
>  static void watchdog_mon_event(const char *action)
> diff --git a/include/sysemu/watchdog.h b/include/sysemu/watchdog.h
> index 3e9a970..2bfe2fc 100644
> --- a/include/sysemu/watchdog.h
> +++ b/include/sysemu/watchdog.h
> @@ -34,6 +34,12 @@ struct WatchdogTimerModel {
>  };
>  typedef struct WatchdogTimerModel WatchdogTimerModel;
>
> +struct watchdog_action {
> +    const char *name;
> +    int action;
> +};
> +extern struct watchdog_action watchdog_actions[];
> +
>  /* in hw/watchdog.c */
>  int select_watchdog(const char *p);
>  int select_watchdog_action(const char *action);
> diff --git a/monitor.c b/monitor.c
> index ee9390f..57d23c6 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -4562,16 +4562,21 @@ void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
>
>  void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
>  {
> +    int i;
> +    size_t len;
> +
>      if (nb_args != 2) {
>          return;
>      }
> -    readline_set_completion_index(rs, strlen(str));
> -    add_completion_option(rs, str, "reset");
> -    add_completion_option(rs, str, "shutdown");
> -    add_completion_option(rs, str, "poweroff");
> -    add_completion_option(rs, str, "pause");
> -    add_completion_option(rs, str, "debug");
> -    add_completion_option(rs, str, "none");
> +    len = strlen(str);
> +    readline_set_completion_index(rs, len);
> +    for (i = 0; watchdog_actions[i].name; i++) {
> +        const char *name = watchdog_actions[i].name;
> +
> +        if (!strncmp(str, name, len)) {
> +            readline_add_completion(rs, name);
> +        }
> +    }
>  }
>
>  void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
>