util: Add remove to util_cache

I need to be able to remove entries from util_cache caches.  This change
enables that functionality.

2 files changed, 26 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/util/u_cache.c b/src/gallium/auxiliary/util/u_cache.c
index 15f4a8831f..e88f36dea7 100644
--- a/src/gallium/auxiliary/util/u_cache.c
+++ b/src/gallium/auxiliary/util/u_cache.c
@@ -215,3 +215,25 @@ util_cache_destroy(struct util_cache *cache)
    FREE(cache->entries);
    FREE(cache);
 }
+
+
+void
+util_cache_remove(struct util_cache *cache,
+                  const void *key)
+{
+   struct util_cache_entry *entry;
+   uint32_t hash;
+
+   assert(cache);
+   if (!cache)
+      return;
+
+   hash = cache->hash(key);
+
+   entry = util_cache_entry_get(cache, hash, key);
+   if (!entry)
+      return;
+
+   if (entry->state == FILLED)
+      util_cache_entry_destroy(cache, entry);
+}
diff --git a/src/gallium/auxiliary/util/u_cache.h b/src/gallium/auxiliary/util/u_cache.h
index 8a612c6585..be3631b725 100644
--- a/src/gallium/auxiliary/util/u_cache.h
+++ b/src/gallium/auxiliary/util/u_cache.h
@@ -79,6 +79,10 @@ util_cache_clear(struct util_cache *cache);
 void
 util_cache_destroy(struct util_cache *cache);
 
+void
+util_cache_remove(struct util_cache *cache,
+                  const void *key);
+
 
 #ifdef __cplusplus
 }