hash_table: Add an iterator for doing things like cleanup of the HT.

Without this, consumers often have to keep linked lists of the
entries, at additional malloc cost.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/mesa/program/hash_table.h b/src/mesa/program/hash_table.h
index f1c4fdcd1fa..e715bb1cc62 100644
--- a/src/mesa/program/hash_table.h
+++ b/src/mesa/program/hash_table.h
@@ -144,6 +144,13 @@ hash_table_pointer_hash(const void *key);
 int
 hash_table_pointer_compare(const void *key1, const void *key2);
 
+void
+hash_table_call_foreach(struct hash_table *ht,
+			void (*callback)(const void *key,
+					 void *data,
+					 void *closure),
+			void *closure);
+
 #ifdef __cplusplus
 }
 #endif