From a9588bebc7dad65155bb24e2082310aafcf8f944 Mon Sep 17 00:00:00 2001
From: Novy Ondrej <ondrej.novy@firma.seznam.cz>
Date: Sat, 28 Mar 2015 21:37:51 +0100
Subject: [PATCH 1/2] Run sync after timeout in inotify mode even when no
 changes detected.

---
 osync.sh  | 16 +++++++++++++---
 sync.conf |  4 ++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/osync.sh b/osync.sh
index 6ba5cf0..632e487 100755
--- a/osync.sh
+++ b/osync.sh
@@ -1993,11 +1993,21 @@ function SyncOnChanges
 		fi
 
 		Log "#### Monitoring now."
-        	inotifywait --exclude $OSYNC_DIR $RSYNC_EXCLUDE -qq -r -e create -e modify -e delete -e move -e attrib "$MASTER_SYNC_DIR" &
+		inotifywait --exclude $OSYNC_DIR $RSYNC_EXCLUDE -qq -r -e create -e modify -e delete -e move -e attrib --timeout "$MAX_WAIT" "$MASTER_SYNC_DIR" &
 		sub_pid=$!
 		wait $sub_pid
-		Log "#### Changes detected, waiting $MIN_WAIT seconds before running next sync."
-		sleep $MIN_WAIT
+		retval=$?
+		if [ $retval == 0 ]
+		then
+			Log "#### Changes detected, waiting $MIN_WAIT seconds before running next sync."
+			sleep $MIN_WAIT
+		elif [ $retval == 2 ]
+		then
+			Log "#### $MAX_WAIT timeout reached, running sync."
+		else
+			Log "#### inotify error detected, waiting $MIN_WAIT seconds before running next sync."
+			sleep $MIN_WAIT
+		fi
 	done
 
 }
diff --git a/sync.conf b/sync.conf
index bc8bef2..c1e12ad 100755
--- a/sync.conf
+++ b/sync.conf
@@ -87,6 +87,10 @@ HARD_MAX_EXEC_TIME=10600
 ## Minimum time (in seconds) in file monitor /daemon mode between modification detection and sync task in order to let copy operations finish.
 MIN_WAIT=60
 
+## Maximum time (in seconds) waiting in file monitor / daemon mode. After this time, sync is run.
+## Use 0 to wait indefinitely.
+MAX_WAIT=300
+
 ## ---------- BACKUP AND DELETION OPTIONS
 
 ## Enabling this option will keep a backup of a file on the target replica if it gets updated from the source replica. Backups will be made to .osync_workdir/backups

From 8bc5b5ee682dd7a480e2d014d90f9d2c97eeaa4e Mon Sep 17 00:00:00 2001
From: onovy <novy@ondrej.org>
Date: Sat, 28 Mar 2015 22:44:41 +0100
Subject: [PATCH 2/2] Locking fix in SyncOnChanges mode.

---
 osync.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/osync.sh b/osync.sh
index 632e487..a139f66 100755
--- a/osync.sh
+++ b/osync.sh
@@ -1980,9 +1980,9 @@ function SyncOnChanges
 	do
 		if [ "$ConfigFile" != "" ]
 		then
-        		cmd="bash $osync_cmd \"$ConfigFile\" $opts --no-locks"
+			cmd="bash $osync_cmd \"$ConfigFile\" $opts"
 		else
-			cmd="bash $osync_cmd $opts --no-locks"
+			cmd="bash $osync_cmd $opts"
 		fi
 		eval $cmd
 		retval=$?
@@ -2096,6 +2096,7 @@ do
 		;;
 		--on-changes)
 		sync_on_changes=1
+		nolocks=1
 		;;
 		--no-locks)
 		nolocks=1