From 79fa624c3ec18d945fa09b28c95e5cd183246f2d Mon Sep 17 00:00:00 2001
From: Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
Date: Thu, 4 Feb 2016 17:49:45 +0100
Subject: [PATCH] fix: only send data once to the client

---
 lib/websocket.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/websocket.c b/lib/websocket.c
index c84008dbb..403f19d63 100644
--- a/lib/websocket.c
+++ b/lib/websocket.c
@@ -248,7 +248,7 @@ found:			* (void **) user = n;
 			if (w->shutdown)
 				goto shutdown;
 			
-			if (!w->write.pool)
+			if (w->write.pool == NULL || w->write.cnt == 0)
 				return 0; /* no samples available to send */
 			
 			pthread_mutex_lock(&w->write.mutex);
@@ -274,6 +274,10 @@ found:			* (void **) user = n;
 				
 				memcpy(dst, src, bytes);
 			}
+			
+			/* We've done our work here. Do not send again.. */
+			w->write.pool = NULL;
+			w->write.pool = 0;
 
 			pthread_mutex_unlock(&w->write.mutex);