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adt: add ADT_FOREACH_PROPERTY

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Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-01-30 01:31:55 +09:00
parent 891bc5592e
commit c057775ab9
1 changed files with 13 additions and 0 deletions
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13
src/adt.h
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@ -38,6 +38,11 @@ struct adt_node_hdr {
/* Basic sanity check */
int adt_check_header(const void *adt);
static inline int adt_get_property_count(const void *adt, int offset)
{
return ADT_NODE(adt, offset)->property_count;
}
static inline int adt_first_property_offset(const void *adt, int offset)
{
UNUSED(adt);
@ -59,6 +64,7 @@ static inline int adt_get_child_count(const void *adt, int offset)
{
return ADT_NODE(adt, offset)->child_count;
}
int adt_first_child_offset(const void *adt, int offset);
int adt_next_sibling_offset(const void *adt, int offset);
@ -90,4 +96,11 @@ int adt_get_reg(const void *adt, int *path, const char *prop, int idx, u64 *addr
for (node = adt_first_child_offset(adt, node); _child_count--; \
node = adt_next_sibling_offset(adt, node))
#define ADT_FOREACH_PROPERTY(adt, node, prop) \
for (int _prop_count = adt_get_property_count(adt, node), \
_poff = adt_first_property_offset(adt, node); \
_prop_count; _prop_count = 0) \
for (const struct adt_property *prop = ADT_PROP(adt, _poff); _prop_count--; \
prop = ADT_PROP(adt, _poff = adt_next_property_offset(adt, _poff)))
#endif