Allow sFlowCpInterval=0 to disable counter samples, and fix bug in sampler removal.

[openvswitch] / lib / coverage.c

diff --git a/lib/coverage.c b/lib/coverage.c
index ba5d68d84751512e69063e4fc31361f388e9fe48..92bc2b891184a34dea01cbbf9698214c63c00390 100644 (file)
--- a/lib/coverage.c
+++ b/lib/coverage.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@
 static unsigned int epoch;
 
 static void
-coverage_unixctl_log(struct unixctl_conn *conn, const char *args UNUSED)
+coverage_unixctl_log(struct unixctl_conn *conn, const char *args OVS_UNUSED)
 {
     coverage_log(VLL_WARN, false);
     unixctl_command_reply(conn, 200, NULL);
@@ -122,7 +122,10 @@ coverage_log_counter(enum vlog_level level, const struct coverage_counter *c)
 }
 
 /* Logs the coverage counters at the given vlog 'level'.  If
- * 'suppress_dups' is true, then duplicate events are not displayed. */
+ * 'suppress_dups' is true, then duplicate events are not displayed. 
+ * Care should be taken in the value used for 'level'.  Depending on the
+ * configuration, syslog can write changes synchronously, which can
+ * cause the coverage messages to take several seconds to write. */
 void
 coverage_log(enum vlog_level level, bool suppress_dups)
 {