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Generalize QOM publishing of date and time from mc146818rtc.c

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The mc146818rtc driver exposes the current RTC date and time via the "date"
property in QOM (which is also aliased to the machine's "rtc-time"
property).  Currently it uses a custom visitor function rtc_get_date to
do this.

This patch introduces new helpers to the QOM core to expose struct tm
valued properties via a getter function, so that this functionality can be
more easily duplicated in other RTC implementations.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2015-02-06 14:55:45 +11:00 • committed by Alexander Graf
parent b194df478a
commit 8e099d14f5
3 changed files with 96 additions and 41 deletions
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14
include/qom/object.h
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@ -1203,6 +1203,20 @@ void object_property_add_bool(Object *obj, const char *name,
void (*set)(Object *, bool, Error **),
Error **errp);
/**
* object_property_add_tm:
* @obj: the object to add a property to
* @name: the name of the property
* @get: the getter or NULL if the property is write-only.
* @errp: if an error occurs, a pointer to an area to store the error
*
* Add a read-only struct tm valued property using a getter function.
* This function will add a property of type 'struct tm'.
*/
void object_property_add_tm(Object *obj, const char *name,
void (*get)(Object *, struct tm *, Error **),
Error **errp);
/**
* object_property_add_uint8_ptr:
* @obj: the object to add a property to