Avoid unnecessary string handling for UPDATE commands in rrd_deaemon for 20x

speed increasse. Only copy as many bytes as necessary. During journal
replay, avoid unnecessary copy (string is discarded). Bug reported by
Thorsten von Eicken Patched by kevin brintnall

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1961 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_daemon.c b/src/rrd_daemon.c
index 0ca1818..1946003 100644 (file)
--- a/src/rrd_daemon.c
+++ b/src/rrd_daemon.c
@@ -1312,7 +1312,8 @@ static int handle_request_update (HANDLER_PROTO) /* {{{ */
   cache_item_t *ci;
 
   /* save it for the journal later */
-  strncpy(orig_buf, buffer, sizeof(orig_buf)-1);
+  if (sock != NULL)
+    strncpy(orig_buf, buffer, buffer_size);
 
   status = buffer_get_field (&buffer, &buffer_size, &file);
   if (status != 0)