Re: [PATCH v3] core/gatt: Add GATT.Cache config option

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Hi,

On Thu, Jun 15, 2017 at 5:31 AM, Miao-chen Chou <mcchou@xxxxxxxxxxxx> wrote:
> Hi Luiz,
>
> Thanks for the patch. It'd be better if a bit more description is
> added to main.conf about the difference between "always" and "yes"
> options in terms of unpair/paired devices. The fix looks good to me.

Ive added some description for the options.

> Thanks,
> Miao
>
> On Tue, Jun 13, 2017 at 10:44 AM, Vinicius Costa Gomes
> <vinicius.gomes@xxxxxxxxx> wrote:
>> Hi Luiz,
>>
>> Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> writes:
>>> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>>>
>>> This adds GATT.Cache config option to main.conf which can be used
>>> to adjust the cache expected behavior of attributes found over GATT.
>>> ---
>>>  src/device.c  | 28 ++++++++++++++++++++++++++++
>>>  src/hcid.h    |  7 +++++++
>>>  src/main.c    | 26 +++++++++++++++++++++++++-
>>>  src/main.conf |  6 ++++++
>>>  4 files changed, 66 insertions(+), 1 deletion(-)
>>>
>>
>> [...]
>>
>>>
>>> +static void parse_gatt_cache(const char *cache)
>>> +{
>>> +     if (!strcmp(cache, "always")) {
>>> +             main_opts.gatt_cache = BT_GATT_CACHE_ALWAYS;
>>> +     } else if (!strcmp(cache, "yes")) {
>>> +             main_opts.gatt_cache = BT_GATT_CACHE_YES;
>>> +     } else if (!strcmp(cache, "no")) {
>>> +             main_opts.gatt_cache = BT_GATT_CACHE_NO;
>>> +     } else {
>>> +             DBG("Invalid value for KeepCache=%s", cache);
>>> +     }
>>
>> [optional] I wonder if making this return the enum, and return the
>> default if 'cache' is NULL, would make the code clearer.

Done.

>>> +}
>>> +
>>>  static void check_config(GKeyFile *config)
>>>  {
>>> -     const char *valid_groups[] = { "General", "Policy", NULL };
>>> +     const char *valid_groups[] = { "General", "Policy", "GATT", NULL };
>>>       char **keys;
>>>       int i;
>>>
>>> @@ -357,6 +370,17 @@ static void parse_config(GKeyFile *config)
>>>               g_clear_error(&err);
>>>       else
>>>               main_opts.fast_conn = boolean;
>>> +
>>> +     str = g_key_file_get_string(config, "GATT", "Cache", &err);
>>> +     if (err) {
>>> +             g_clear_error(&err);
>>> +             main_opts.gatt_cache = BT_GATT_CACHE_ALWAYS;
>>> +             return;
>>> +     }
>>> +
>>> +     parse_gatt_cache(str);
>>> +
>>> +     g_free(str);
>>>  }
>>>
>>>  static void init_defaults(void)
>>> diff --git a/src/main.conf b/src/main.conf
>>> index a649276..7807a8f 100644
>>> --- a/src/main.conf
>>> +++ b/src/main.conf
>>> @@ -71,6 +71,12 @@
>>>  # Defaults to "off"
>>>  # Privacy = off
>>>
>>> +[GATT]
>>> +# GATT attribute cache.
>>> +# Possible values: always, yes, no
>>> +# Default: always
>>> +#Cache = always
>>> +
>>>  [Policy]
>>>  #
>>>  # The ReconnectUUIDs defines the set of remote services that should try
>>> --

Applied after a few changes mentioned above.

-- 
Luiz Augusto von Dentz
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