Clear a set back to the state of having zero entries.
---
src/util/set.c | 23 +++++++++++++++++++++++
src/util/set.h | 3 +++
2 files changed, 26 insertions(+)
diff --git a/src/util/set.c b/src/util/set.c
index d71f771807f..2c9b09319ff 100644
--- a/src/util/set.c
+++ b/src/util/set.c
@@ -155,6 +155,29 @@ _mesa_set_destroy(struct set *ht, void
(*delete_function)(struct set_entry *entr
ralloc_free(ht);
}
+/**
+ * Clears all values from the given set.
+ *
+ * If delete_function is passed, it gets called on each entry present before
+ * the set is cleared.
+ */
+void
+_mesa_set_clear(struct set *set, void (*delete_function)(struct set_entry
*entry))
+{
+ struct set_entry *entry;
+
+ if (!set)
+ return;
+
+ set_foreach (set, entry) {
+ if (delete_function)
+ delete_function(entry);
+ entry->key = deleted_key;
+ }
+
+ set->entries = set->deleted_entries = 0;
+}
+
/**
* Finds a set entry with the given key and hash of that key.
*
diff --git a/src/util/set.h b/src/util/set.h
index 9acd2c28c9f..06e79e15867 100644
--- a/src/util/set.h
+++ b/src/util/set.h
@@ -61,6 +61,9 @@ _mesa_set_create(void *mem_ctx,
void
_mesa_set_destroy(struct set *set,
void (*delete_function)(struct set_entry *entry));
+void
+_mesa_set_clear(struct set *set,
+ void (*delete_function)(struct set_entry *entry));
struct set_entry *
_mesa_set_add(struct set *set, const void *key);
--
2.14.3
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