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-rw-r--r--xlators/debug/sink/src/sink.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/xlators/debug/sink/src/sink.c b/xlators/debug/sink/src/sink.c
new file mode 100644
index 00000000000..dfd5685a969
--- /dev/null
+++ b/xlators/debug/sink/src/sink.c
@@ -0,0 +1,79 @@
+/*
+ Copyright (c) 2017 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#include "xlator.h"
+#include "defaults.h"
+
+int32_t
+init (xlator_t *this)
+{
+ return 0;
+}
+
+void
+fini (xlator_t *this)
+{
+ return;
+}
+
+/*
+ * notify - when parent sends PARENT_UP, send CHILD_UP event from here
+ */
+int32_t
+notify (xlator_t *this, int32_t event, void *data, ...)
+{
+ switch (event) {
+ case GF_EVENT_PARENT_UP:
+ /* Tell the parent that this xlator is up */
+ default_notify (this, GF_EVENT_CHILD_UP, data);
+ break;
+ case GF_EVENT_PARENT_DOWN:
+ /* Tell the parent that this xlator is down */
+ default_notify (this, GF_EVENT_CHILD_DOWN, data);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * A lookup on "/" is done while mounting or glfs_init() is performed. This
+ * needs to return a valid directory for the root of the mountpoint.
+ *
+ * In case this xlator is used for more advanced debugging, it will need to be
+ * extended to support different LOOKUPs too.
+ */
+static int32_t
+sink_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+ struct iatt stbuf = { 0, };
+ struct iatt postparent = { 0, };
+
+ /* the root of the volume always need to be a directory */
+ stbuf.ia_type = IA_IFDIR;
+
+ STACK_UNWIND_STRICT (lookup, frame, 0, 0, loc ? loc->inode : NULL,
+ &stbuf, xdata, &postparent);
+
+ return 0;
+}
+
+struct xlator_fops fops = {
+ .lookup = sink_lookup,
+};
+
+struct xlator_cbks cbks = {
+};
+
+struct volume_options options[] = {
+ { .key = {NULL} },
+};