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/*
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;
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