mdmon: pass symbolic name to mdmon instead of device name.

[thirdparty/mdadm.git] / mdmon.h

diff --git a/mdmon.h b/mdmon.h
index 11320ef6994dc65bcd7cb701a77b939d719f23b4..e4904baa438b389e3837f2498e80ad909248d8bd 100644 (file)
--- a/mdmon.h
+++ b/mdmon.h
@@ -1,3 +1,22 @@
+/*
+ * mdmon - monitor external metadata arrays
+ *
+ * Copyright (C) 2007-2008 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2007-2008 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
 
 enum array_state { clear, inactive, suspended, readonly, read_auto,
                   clean, active, write_pending, active_idle, bad_word};
@@ -12,6 +31,7 @@ struct active_array {
 
        int action_fd;
        int resync_start_fd;
+       int metadata_fd; /* for monitoring rw/ro status */
 
        enum array_state prev_state, curr_state, next_state;
        enum sync_action prev_action, curr_action, next_action;
@@ -34,12 +54,6 @@ struct active_array {
  * superswitch.  All common code sees them as opaque
  * blobs.
  */
-struct metadata_update {
-       int     len;
-       char    *buf;
-       void    *space; /* allocated space that monitor will use */
-       struct metadata_update *next;
-};
 extern struct metadata_update *update_queue, *update_queue_handled;
 
 #define MD_MAJOR 9
@@ -53,11 +67,28 @@ extern struct md_generic_cmd *active_cmd;
 void remove_pidfile(char *devname);
 void do_monitor(struct supertype *container);
 void do_manager(struct supertype *container);
+int make_control_sock(char *devname);
+int make_pidfile(char *devname, int o_excl);
+extern int socket_hup_requested;
+extern int sigterm;
 
 int read_dev_state(int fd);
+int get_resync_start(struct active_array *a);
+int is_container_member(struct mdstat_ent *mdstat, char *container);
 
 struct mdstat_ent *mdstat_read(int hold, int start);
 
-extern struct superswitch super_ddf, super_ddf_bvd, super_ddf_svd;
-
 extern int exit_now, manager_ready;
+extern int mon_tid, mgr_tid;
+extern int monitor_loop_cnt;
+
+/* helper routine to determine resync completion since MaxSector is a
+ * moving target
+ */
+static inline int is_resync_complete(struct active_array *a)
+{
+       if (a->resync_start >= a->info.component_size)
+               return 1;
+       return 0;
+}
+