1 files changed, 41 insertions, 0 deletions
diff --git a/common/bo-cache.h b/common/bo-cache.h
new file mode 100644
index 0000000..0bc5ac0
--- /dev/null
+++ b/common/bo-cache.h
@@ -0,0 +1,41 @@
+#ifndef BO_CACHE_H
+#define BO_CACHE_H
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <X11/Xdefs.h>
+#include "compat-list.h"
+
+/* Number of buckets in the BO cache */
+#define NUM_BUCKETS		(3*9 + 2)
+
+struct bo_cache;
+struct bo_entry;
+
+struct bo_bucket {
+	struct xorg_list head;
+	size_t size;
+};
+
+struct bo_cache {
+	struct bo_bucket buckets[NUM_BUCKETS];
+	struct xorg_list head;
+	time_t last_cleaned;
+	void (*free)(struct bo_entry *);
+};
+
+struct bo_entry {
+	struct bo_bucket *bucket;
+	struct xorg_list bucket_node;
+	struct xorg_list free_node;
+	time_t free_time;
+};
+
+void bo_cache_init(struct bo_cache *cache, void (*free)(struct bo_entry *));
+void bo_cache_fini(struct bo_cache *cache);
+struct bo_bucket *bo_cache_bucket_find(struct bo_cache *cache, size_t size);
+struct bo_entry *bo_cache_bucket_get(struct bo_bucket *bucket);
+void bo_cache_clean(struct bo_cache *cache, time_t time);
+void bo_cache_put(struct bo_cache *cache, struct bo_entry *entry);
+
+#endif