From d24e3e05bc6ba360d50f7af64652c01ee03e57a7 Mon Sep 17 00:00:00 2001
From: Mark Michelson <mmichelson@digium.com>
Date: Tue, 3 Mar 2009 22:49:32 +0000
Subject: [PATCH] Merged revisions 180007 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/trunk

................
  r180007 | mmichelson | 2009-03-03 16:49:07 -0600 (Tue, 03 Mar 2009) | 22 lines

  Merged revisions 180006 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.4

  ........
    r180006 | mmichelson | 2009-03-03 16:48:18 -0600 (Tue, 03 Mar 2009) | 17 lines

    Clarify some documentation of queues.conf.sample

    It had always been possible to explicitly specify a "blank"
    value for a sound file in queues.conf and have no sound played
    back. The problem with this is that it would result in some ugly
    CLI warnings from file.c.

    This commit introduces a check when playing a file in app_queue
    to see if the name of the file is zero-length and return early if
    that is the case. Also, the ability to specify the blank sound
    files in queues.conf is now mentioned more clearly in queues.conf.sample

    (closes issue #14227)
    Reported by: caspy
  ........
................


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.0@180008 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 apps/app_queue.c           | 4 ++++
 configs/queues.conf.sample | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/apps/app_queue.c b/apps/app_queue.c
index 24fe45afa1..89221459f0 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -1788,6 +1788,10 @@ static int play_file(struct ast_channel *chan, const char *filename)
 {
 	int res;
 
+	if (ast_strlen_zero(filename)) {
+		return 0;
+	}
+
 	ast_stopstream(chan);
 
 	res = ast_streamfile(chan, filename, chan->language);
diff --git a/configs/queues.conf.sample b/configs/queues.conf.sample
index 7a7cddd301..e15110bad8 100644
--- a/configs/queues.conf.sample
+++ b/configs/queues.conf.sample
@@ -231,6 +231,13 @@ shared_lastcall=no
 ;
 ; Use these sound files in making position/holdtime announcements.  The
 ; defaults are as listed below -- change only if you need to.
+;
+; Keep in mind that you may also prevent a sound from being played if you
+; explicitly set a sound to be an empty string. For example, if you want to
+; prevent the queue from playing queue-thankyou, you may set the sound using
+; the following line:
+;
+; queue-thankyou=
 ;
 			;	("You are now first in line.")
 ;queue-youarenext = queue-youarenext