[Mesa-dev] [PATCH 03/40] util: add a disk_cache_remove() function
Timothy Arceri
tarceri at itsqueeze.com
Tue Feb 7 03:42:07 UTC 2017
From: Timothy Arceri <timothy.arceri at collabora.com>
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.
---
src/util/disk_cache.c | 22 ++++++++++++++++++++++
src/util/disk_cache.h | 12 ++++++++++++
2 files changed, 34 insertions(+)
diff --git a/src/util/disk_cache.c b/src/util/disk_cache.c
index 551ceeb..7451b08 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,
diff --git a/src/util/disk_cache.h b/src/util/disk_cache.h
index 7e9cb80..1f2bf3d 100644
--- a/src/util/disk_cache.h
+++ b/src/util/disk_cache.h
@@ -78,6 +78,12 @@ void
disk_cache_destroy(struct disk_cache *cache);
/**
+ * Remove the item in the cache under the name \key.
+ */
+void
+disk_cache_remove(struct disk_cache *cache, cache_key key);
+
+/**
* Store an item in the cache under the name \key.
*
* The item can be retrieved later with disk_cache_get(), (unless the item has
@@ -151,6 +157,12 @@ disk_cache_put(struct disk_cache *cache, cache_key key,
return;
}
+static inline void
+disk_cache_remove(struct program_cache *cache, cache_key key)
+{
+ return;
+}
+
static inline uint8_t *
disk_cache_get(struct disk_cache *cache, cache_key key, size_t *size)
{
--
2.9.3
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