THIS: xlator_notify API to be used for propagating notifications with proper THIS setting

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

2 files changed, 19 insertions, 0 deletions

diff --git a/libglusterfs/src/xlator.c b/libglusterfs/src/xlator.c
index 002cf90a9..61f8f6f4e 100644
--- a/libglusterfs/src/xlator.c
+++ b/libglusterfs/src/xlator.c
@@ -807,6 +807,23 @@ xlator_fini_rec (xlator_t *xl)
 }
 
 
+int
+xlator_notify (xlator_t *xl, int event, void *data, ...)
+{
+        xlator_t *old_THIS = NULL;
+        int       ret = 0;
+
+        old_THIS = THIS;
+        THIS = xl;
+
+        ret = xl->notify (xl, event, data);
+
+        THIS = old_THIS;
+
+        return ret;
+}
+
+
 void
 xlator_tree_fini (xlator_t *xl)
 {
diff --git a/libglusterfs/src/xlator.h b/libglusterfs/src/xlator.h
index b9555ffd5..ffbb6a0f8 100644
--- a/libglusterfs/src/xlator.h
+++ b/libglusterfs/src/xlator.h
@@ -60,6 +60,7 @@ typedef int32_t (*event_notify_fn_t) (xlator_t *this,
 #include "iobuf.h"
 #include "inode.h"
 #include "fd.h"
+#include "globals.h"
 
 struct _loc {
 	const char *path;
@@ -871,6 +872,7 @@ int32_t xlator_set_type (xlator_t *xl, const char *type);
 xlator_t *file_to_xlator_tree (glusterfs_ctx_t *ctx,
 			       FILE *fp);
 
+int xlator_notify (xlator_t *this, int32_t event, void *data, ...);
 
 int32_t xlator_tree_init (xlator_t *xl);
 int32_t xlator_tree_free (xlator_t *xl);