libglusterfsclient: Improve readdir conformance on re-entrancy

readdir is supposed to be non-re-entrant only with respect to the
given dir stream, not the whole process.

What that means is the static struct dirent that we maintain in
libglusterfsclient should be per-directory handle and not
process-wide.

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

1 files changed, 13 insertions, 0 deletions

diff --git a/libglusterfsclient/src/libglusterfsclient-internals.h b/libglusterfsclient/src/libglusterfsclient-internals.h
index 9646b0575..4cdde26e7 100755
--- a/libglusterfsclient/src/libglusterfsclient-internals.h
+++ b/libglusterfsclient/src/libglusterfsclient-internals.h
@@ -31,6 +31,7 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 #include <fd.h>
+#include <dirent.h>
 
 typedef void (*sighandler_t) (int);
 typedef struct list_head list_head_t;
@@ -230,4 +231,16 @@ struct vmp_entry {
 };
 
 
+/* Internal directory handle inited in opendir.
+ * This is needed in order to store a per-handle
+ * dirent structure.
+ */
+struct libgf_dir_handle {
+        fd_t *dirfd;
+        struct dirent dirp;
+};
+
+
+
+
 #endif