libglusterfsclient: Simplify inode and stat caching

There is a mechanism for caching the inode numbers got from a lookup
and a struct stat got from a stat or fstat but I wasnt sure if it worked.
This commit simplifies cache updates and checks and the accompanying
tests have made sure that the cache does work.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/libglusterfsclient/src/libglusterfsclient-internals.h b/libglusterfsclient/src/libglusterfsclient-internals.h
index 40ad6f692..42ce5d4ca 100755
--- a/libglusterfsclient/src/libglusterfsclient-internals.h
+++ b/libglusterfsclient/src/libglusterfsclient-internals.h
@@ -235,5 +235,18 @@ struct vmp_entry {
         glusterfs_handle_t handle;
 };
 
+#define LIBGF_UPDATE_LOOKUP     0x1
+#define LIBGF_UPDATE_STAT       0x2
+#define LIBGF_UPDATE_ALL        (LIBGF_UPDATE_LOOKUP | LIBGF_UPDATE_STAT)
+
+#define LIBGF_VALIDATE_LOOKUP  0x1
+#define LIBGF_VALIDATE_STAT     0x2
+
+int
+libgf_is_iattr_cache_valid (libglusterfs_client_ctx_t *ctx, inode_t *inode,
+                            struct stat *sbuf, int flags);
+
+int
+libgf_update_iattr_cache (inode_t *inode, int flags, struct stat *buf);
 
 #endif