util: add a disk_cache_remove() function

This will be used to remove cache items created with old versions
of Mesa or other invalid cache items from the cache.

V2: rename stub function (cache_* funtions were renamed disk_cache_*)
in master.

Reviewed-by: Anuj Phogat <[email protected]>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/util/disk_cache.c b/src/util/disk_cache.c
index 551ceebd3b8..7451b083398 100644
--- a/src/util/disk_cache.c
+++ b/src/util/disk_cache.c
@@ -538,6 +538,28 @@ evict_random_item(struct disk_cache *cache)
 }
 
 void
+disk_cache_remove(struct disk_cache *cache, cache_key key)
+{
+   struct stat sb;
+
+   char *filename = get_cache_file(cache, key);
+   if (filename == NULL) {
+      return;
+   }
+
+   if (stat(filename, &sb) == -1) {
+      ralloc_free(filename);
+      return;
+   }
+
+   unlink(filename);
+   ralloc_free(filename);
+
+   if (sb.st_size)
+      p_atomic_add(cache->size, - sb.st_size);
+}
+
+void
 disk_cache_put(struct disk_cache *cache,
           cache_key key,
           const void *data,