[Tarantool-patches] [RFC 1/4] cfg: add cfg_isnumber helper

[Serge Petrenko]

19.11.2020 22:40, Cyrill Gorcunov пишет:
> We will need it to figure out if parameter
> is a numeric value when doing configuration
> check.
>
> Part-of #5446
>
> Signed-off-by: Cyrill Gorcunov <gorcunov at gmail.com>
> ---
>   src/cfg.c | 9 +++++++++
>   src/cfg.h | 6 ++++++
>   2 files changed, 15 insertions(+)
>
> diff --git a/src/cfg.c b/src/cfg.c
> index 46cff1999..cf07d5817 100644
> --- a/src/cfg.c
> +++ b/src/cfg.c
> @@ -57,6 +57,15 @@ cfg_geti(const char *param)
>   	return val;
>   }
>   
> +bool
> +cfg_isnumber(const char *param)
> +{
> +	cfg_get(param);
> +	bool ret = !!lua_isnumber(tarantool_L, -1);
> +	lua_pop(tarantool_L, 1);
> +	return ret;
> +}
> +
>   int
>   cfg_getb(const char *param)
>   {
> diff --git a/src/cfg.h b/src/cfg.h
> index 140bdddb8..e2955e6b2 100644
> --- a/src/cfg.h
> +++ b/src/cfg.h
> @@ -40,6 +40,12 @@ extern "C" {
>   int
>   cfg_geti(const char *param);
>   
> +/**
> + * Test if cfg parameter is a number.
> + */
> +bool
> +cfg_isnumber(const char *param);
> +
>   /**
>    * Gets boolean parameter of cfg.
>    * Returns -1 in case of nil
LGTM.

-- 
Serge Petrenko