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-rw-r--r--api/src/glfs-master.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/api/src/glfs-master.c b/api/src/glfs-master.c
new file mode 100644
index 00000000000..0806c3077b7
--- /dev/null
+++ b/api/src/glfs-master.c
@@ -0,0 +1,113 @@
+/*
+ Copyright (c) 2012 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 <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <limits.h>
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+#include "glusterfs.h"
+#include "glfs-internal.h"
+
+
+int
+glfs_graph_setup (struct glfs *fs, glusterfs_graph_t *graph)
+{
+ if (fs->active_subvol == graph->top)
+ return 0;
+
+ pthread_mutex_lock (&fs->mutex);
+ {
+ fs->active_subvol = graph->top;
+ pthread_cond_broadcast (&fs->cond);
+ }
+ pthread_mutex_unlock (&fs->mutex);
+
+ gf_log ("glfs-master", GF_LOG_INFO, "switched to graph %s (%d)",
+ uuid_utoa ((unsigned char *)graph->graph_uuid), graph->id);
+
+ return 0;
+}
+
+
+int
+notify (xlator_t *this, int event, void *data, ...)
+{
+ glusterfs_graph_t *graph = NULL;
+ struct glfs *fs = NULL;
+
+ graph = data;
+ fs = this->private;
+
+ switch (event) {
+ case GF_EVENT_GRAPH_NEW:
+ gf_log (this->name, GF_LOG_INFO, "New graph %s (%d) coming up",
+ uuid_utoa ((unsigned char *)graph->graph_uuid),
+ graph->id);
+ break;
+ case GF_EVENT_CHILD_UP:
+ glfs_graph_setup (fs, graph);
+ glfs_init_done (fs, 0);
+ break;
+ case GF_EVENT_CHILD_DOWN:
+ glfs_graph_setup (fs, graph);
+ glfs_init_done (fs, 1);
+ break;
+ case GF_EVENT_CHILD_CONNECTING:
+ break;
+ default:
+ gf_log (this->name, GF_LOG_DEBUG,
+ "got notify event %d", event);
+ break;
+ }
+
+ return 0;
+}
+
+
+int
+mem_acct_init (xlator_t *this)
+{
+ return 0;
+}
+
+
+int
+init (xlator_t *this)
+{
+ return 0;
+}
+
+
+void
+fini (xlator_t *this)
+{
+
+}
+
+
+struct xlator_dumpops dumpops = {
+};
+
+
+struct xlator_fops fops = {
+};
+
+
+struct xlator_cbks cbks = {
+};