[PATCH 2/7] xkb: add a call to init an XkbRMLVOSet from const chars

Hans de Goede hdegoede at redhat.com
Mon Feb 3 02:12:44 PST 2014


Hi,

On 02/03/2014 01:07 AM, Peter Hutterer wrote:
> On Fri, Jan 31, 2014 at 05:30:58PM +0100, Hans de Goede wrote:
>> Hi,
>>
>> On 01/31/2014 12:36 AM, Peter Hutterer wrote:
>>> On Thu, Jan 30, 2014 at 09:40:33AM +0100, Hans de Goede wrote:
>>>> Hi,
>>>>
>>>> On 01/30/2014 12:51 AM, Peter Hutterer wrote:
>>>>> Just forcing everything to const char* is not helpful, compiler warnings are
>>>>> supposed to warn about broken code. Forcing everything to const when it
>>>>> clearly isn't less than ideal.
>>>>>
>>>>> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
>>>>> ---
>>>>>   hw/xfree86/common/xf86Config.c | 16 ++++++++--------
>>>>>   include/xkbrules.h             | 10 +++++-----
>>>>>   include/xkbsrv.h               |  8 ++++++++
>>>>>   test/xkb.c                     | 16 +++++++++-------
>>>>>   xkb/xkbInit.c                  | 25 ++++++++++++++++++++-----
>>>>>   5 files changed, 50 insertions(+), 25 deletions(-)
>>>>>
>>>>> diff --git a/hw/xfree86/common/xf86Config.c b/hw/xfree86/common/xf86Config.c
>>>>> index 258b22b..542d5ab 100644
>>>>> --- a/hw/xfree86/common/xf86Config.c
>>>>> +++ b/hw/xfree86/common/xf86Config.c
>>>>> @@ -777,13 +777,7 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
>>>>>       MessageType from;
>>>>>       const char *s;
>>>>>       XkbRMLVOSet set;
>>>>> -
>>>>> -    /* Default options. */
>>>>> -    set.rules = "base";
>>>>> -    set.model = "pc105";
>>>>> -    set.layout = "us";
>>>>> -    set.variant = NULL;
>>>>> -    set.options = NULL;
>>>>> +    const char *rules;
>>>>>
>>>>>       /*
>>>>>        * Merge the ServerLayout and ServerFlags options.  The former have
>>>>> @@ -963,9 +957,15 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
>>>>>        * evdev rules set. */
>>>>>   #if defined(linux)
>>>>>       if (!xf86Info.forceInputDevices)
>>>>> -        set.rules = "evdev";
>>>>> +        rules = "evdev";
>>>>> +    else
>>>>>   #endif
>>>>> +        rules = "base";
>>>>> +
>>>>> +    /* Xkb default options. */
>>>>> +    XkbInitRules(&set, rules, "pc105", "us", NULL, NULL);
>>>>>       XkbSetRulesDflts(&set);
>>>>> +    XkbFreeRMLVOSet(&set, FALSE);
>>>>>
>>>>>       xf86Info.useDefaultFontPath = TRUE;
>>>>>       xf86Info.useDefaultFontPathFrom = X_DEFAULT;
>>>>> diff --git a/include/xkbrules.h b/include/xkbrules.h
>>>>> index 956eade..ab5b4b2 100644
>>>>> --- a/include/xkbrules.h
>>>>> +++ b/include/xkbrules.h
>>>>> @@ -30,11 +30,11 @@
>>>>>   /***====================================================================***/
>>>>>
>>>>>   typedef struct _XkbRMLVOSet {
>>>>> -    const char *rules;
>>>>> -    const char *model;
>>>>> -    const char *layout;
>>>>> -    const char *variant;
>>>>> -    const char *options;
>>>>> +    char *rules;
>>>>> +    char *model;
>>>>> +    char *layout;
>>>>> +    char *variant;
>>>>> +    char *options;
>>>>>   } XkbRMLVOSet;
>>>>>
>>>>>   typedef struct _XkbRF_VarDefs {
>>>>> diff --git a/include/xkbsrv.h b/include/xkbsrv.h
>>>>> index 0b9ca06..e799799 100644
>>>>> --- a/include/xkbsrv.h
>>>>> +++ b/include/xkbsrv.h
>>>>> @@ -738,6 +738,14 @@ extern _X_EXPORT void XkbClearAllLatchesAndLocks(DeviceIntPtr /* dev */ ,
>>>>>                                                    XkbEventCausePtr       /* cause */
>>>>>       );
>>>>>
>>>>> +extern _X_EXPORT void XkbInitRules(XkbRMLVOSet * /* rmlvo   */,
>>>>> +                                   const char *  /* rules   */,
>>>>> +                                   const char *  /* model   */,
>>>>> +                                   const char *  /* layout  */,
>>>>> +                                   const char *  /* variant */,
>>>>> +                                   const char *  /* options */
>>>>> +    ) ;
>>>>> +
>>>>>   extern _X_EXPORT void XkbGetRulesDflts(XkbRMLVOSet *    /* rmlvo */
>>>>>       );
>>>>>
>>>>
>>>> Ack to all of the above.
>>>>
>>>>> diff --git a/test/xkb.c b/test/xkb.c
>>>>> index 955e72d..bfacc87 100644
>>>>> --- a/test/xkb.c
>>>>> +++ b/test/xkb.c
>>>>> @@ -82,15 +82,15 @@ xkb_get_rules_test(void)
>>>>>   static void
>>>>>   xkb_set_rules_test(void)
>>>>>   {
>>>>> -    XkbRMLVOSet rmlvo = {
>>>>> -        .rules = "test-rules",
>>>>> -        .model = "test-model",
>>>>> -        .layout = "test-layout",
>>>>> -        .variant = "test-variant",
>>>>> -        .options = "test-options"
>>>>> -    };
>>>>> +    XkbRMLVOSet rmlvo;
>>>>>       XkbRMLVOSet rmlvo_new = { NULL };
>>>>>
>>>>> +    rmlvo.rules = strdup("test-rules");
>>>>> +    rmlvo.model = strdup("test-model");
>>>>> +    rmlvo.layout = strdup("test-layout");
>>>>> +    rmlvo.variant = strdup("test-variant");
>>>>> +    rmlvo.options = strdup("test-options");
>>>>> +
>>>>>       XkbSetRulesDflts(&rmlvo);
>>>>>       XkbGetRulesDflts(&rmlvo_new);
>>>>>
>>>>> @@ -106,6 +106,8 @@ xkb_set_rules_test(void)
>>>>>       assert(strcmp(rmlvo.layout, rmlvo_new.layout) == 0);
>>>>>       assert(strcmp(rmlvo.variant, rmlvo_new.variant) == 0);
>>>>>       assert(strcmp(rmlvo.options, rmlvo_new.options) == 0);
>>>>> +
>>>>> +    XkbFreeRMLVOSet(&rmlvo, FALSE);
>>>>>   }
>>>>>
>>>>>   /**
>>>>
>>>> This should use the new XkbInitRules rather then diy strdup, so as
>>>> to be balanced wrt to the XkbFreeRMLVOSet call.
>>>
>>> amended, local diff is:
>>>
>>> diff --git a/test/xkb.c b/test/xkb.c
>>> index bfacc87..9047f59 100644
>>> --- a/test/xkb.c
>>> +++ b/test/xkb.c
>>> @@ -85,11 +85,13 @@ xkb_set_rules_test(void)
>>>       XkbRMLVOSet rmlvo;
>>>       XkbRMLVOSet rmlvo_new = { NULL };
>>>
>>> -    rmlvo.rules = strdup("test-rules");
>>> -    rmlvo.model = strdup("test-model");
>>> -    rmlvo.layout = strdup("test-layout");
>>> -    rmlvo.variant = strdup("test-variant");
>>> -    rmlvo.options = strdup("test-options");
>>> +    XkbInitRules(&rmlvo, "test-rules", "test-model", "test-layout",
>>> +                         "test-variant", "test-options");
>>> +    assert(rmlvo.rules);
>>> +    assert(rmlvo.model);
>>> +    assert(rmlvo.layout);
>>> +    assert(rmlvo.variant);
>>> +    assert(rmlvo.options);
>>
>> Why the asserts? Now that you use XNFstrdup in XkbInitRules those are
>> not necessary anymore, right ?
>
> it's not necessary, but this is a test for the API.
> Since we're now using a new call, the assert() serves to make sure that what
> we get back is useful and doesn't just hand us a null-ed out struct. Could
> be more extensive (strcmp for the input values) but there's a limit to how
> detailed we need to go here :)

Ah right this is in a test-case, sorry I missed that, in that case, consider the
entire amended series:

Reviewed-by: Hans de Goede <hdegoede at redhat.com>

Regards,

Hans


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