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qom: Add object_child_foreach()

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A utility function that will be used to implement hierarchical realization.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
[AF: Drop unrelated whitespace change, add Returns: in documentation]
[AF: Use new object_property_is_child() helper.]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Paolo Bonzini 2012-04-11 23:30:20 +02:00 • committed by Andreas Färber
parent 5d9d3f4757
commit 32efc535b8
2 changed files with 31 additions and 0 deletions
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14
include/qemu/object.h
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@ -917,6 +917,20 @@ void object_property_add_str(Object *obj, const char *name,
void (*set)(Object *, const char *, struct Error **),
struct Error **errp);
/**
* object_child_foreach:
* @obj: the object whose children will be navigated
* @fn: the iterator function to be called
* @opaque: an opaque value that will be passed to the iterator
*
* Call @fn passing each child of @obj and @opaque to it, until @fn returns
* non-zero.
*
* Returns: The last value returned by @fn, or 0 if there is no child.
*/
int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque),
void *opaque);
/**
* container_get:
* @root: root of the #path, e.g., object_get_root()