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qom: add pointer to int property helpers

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Make it easy to add read-only helpers for simple
integer properties in memory.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2013-09-22 10:10:17 +03:00
parent e82df24873
commit e732ea6387
2 changed files with 81 additions and 0 deletions
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21
include/qom/object.h
View File

@ -794,6 +794,27 @@ void object_property_add(Object *obj, const char *name, const char *type,
void object_property_del(Object *obj, const char *name, Error **errp);
/**
* object_property_add_uint8_ptr:
* object_property_add_uint16_ptr:
* object_property_add_uint32_ptr:
* object_property_add_uint64_ptr:
* @obj: the object to add a property to
* @name: the name of the property
* @v: pointer to value
*
* Add an integer property in memory. This function will add a
* property of the appropriate type.
*/
void object_property_add_uint8_ptr(Object *obj, const char *name,
const uint8_t *v, Error **errp);
void object_property_add_uint16_ptr(Object *obj, const char *name,
const uint16_t *v, Error **errp);
void object_property_add_uint32_ptr(Object *obj, const char *name,
const uint32_t *v, Error **errp);
void object_property_add_uint64_ptr(Object *obj, const char *name,
const uint64_t *v, Error **Errp);
/**
* object_property_find:
* @obj: the object

60
qom/object.c
View File

@ -1344,6 +1344,66 @@ static char *qdev_get_type(Object *obj, Error **errp)
return g_strdup(object_get_typename(obj));
}
static void property_get_uint8_ptr(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
uint8_t value = *(uint8_t *)opaque;
visit_type_uint8(v, &value, name, errp);
}
static void property_get_uint16_ptr(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
uint16_t value = *(uint16_t *)opaque;
visit_type_uint16(v, &value, name, errp);
}
static void property_get_uint32_ptr(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
uint32_t value = *(uint32_t *)opaque;
visit_type_uint32(v, &value, name, errp);
}
static void property_get_uint64_ptr(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
uint64_t value = *(uint64_t *)opaque;
visit_type_uint64(v, &value, name, errp);
}
void object_property_add_uint8_ptr(Object *obj, const char *name,
const uint8_t *v, Error **errp)
{
object_property_add(obj, name, "uint8", property_get_uint8_ptr,
NULL, NULL, (void *)v, errp);
}
void object_property_add_uint16_ptr(Object *obj, const char *name,
const uint16_t *v, Error **errp)
{
object_property_add(obj, name, "uint16", property_get_uint16_ptr,
NULL, NULL, (void *)v, errp);
}
void object_property_add_uint32_ptr(Object *obj, const char *name,
const uint32_t *v, Error **errp)
{
object_property_add(obj, name, "uint32", property_get_uint32_ptr,
NULL, NULL, (void *)v, errp);
}
void object_property_add_uint64_ptr(Object *obj, const char *name,
const uint64_t *v, Error **errp)
{
object_property_add(obj, name, "uint64", property_get_uint64_ptr,
NULL, NULL, (void *)v, errp);
}
static void object_instance_init(Object *obj)
{
object_property_add_str(obj, "type", qdev_get_type, NULL, NULL);