THIS: add xlator_init() API to set @THIS

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

2 files changed, 18 insertions, 0 deletions

diff --git a/libglusterfs/src/xlator.c b/libglusterfs/src/xlator.c
index 61f8f6f4eab..0f76d9c7fe7 100644
--- a/libglusterfs/src/xlator.c
+++ b/libglusterfs/src/xlator.c
@@ -824,6 +824,23 @@ xlator_notify (xlator_t *xl, int event, void *data, ...)
 }
 
 
+int
+xlator_init (xlator_t *xl)
+{
+        xlator_t *old_THIS = NULL;
+        int       ret = 0;
+
+        old_THIS = THIS;
+        THIS = xl;
+
+        ret = xl->init (xl);
+
+        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 ffbb6a0f84f..2bacc04577c 100644
--- a/libglusterfs/src/xlator.h
+++ b/libglusterfs/src/xlator.h
@@ -873,6 +873,7 @@ xlator_t *file_to_xlator_tree (glusterfs_ctx_t *ctx,
 			       FILE *fp);
 
 int xlator_notify (xlator_t *this, int32_t event, void *data, ...);
+int xlator_init (xlator_t *this);
 
 int32_t xlator_tree_init (xlator_t *xl);
 int32_t xlator_tree_free (xlator_t *xl);