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-rw-r--r--msg.h37
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+/*
+ * Copyright (C) 2008 Intel Corporation
+ *
+ * mdmon socket / message handling
+ *
+ * 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.
+ */
+
+struct mdinfo;
+struct metadata_update;
+
+extern int receive_message(int fd, struct metadata_update *msg, int tmo);
+extern int send_message(int fd, struct metadata_update *msg, int tmo);
+extern int ack(int fd, int tmo);
+extern int wait_reply(int fd, int tmo);
+extern int connect_monitor(char *devname);
+extern int ping_monitor(char *devname);
+extern int block_subarray(struct mdinfo *sra);
+extern int unblock_subarray(struct mdinfo *sra, const int unfreeze);
+extern int block_monitor(char *container, const int freeze);
+extern void unblock_monitor(char *container, const int unfreeze);
+extern int fping_monitor(int sock);
+extern int ping_manager(char *devname);
+extern void flush_mdmon(char *container);
+
+#define MSG_MAX_LEN (4*1024*1024)