src/utils_complain.[ch]: Reintroduced an improved version of the complain mechanism.

[collectd.git] / src / utils_complain.c

diff --git a/src/utils_complain.c b/src/utils_complain.c
new file mode 100644 (file)
index 0000000..9d0f466
--- /dev/null
+++ b/src/utils_complain.c
@@ -0,0 +1,101 @@
+/**
+ * collectd - src/utils_complain.c
+ * Copyright (C) 2006-2007  Florian octo Forster
+ * Copyright (C) 2008  Sebastian tokkee Harl
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; only version 2 of the License is applicable.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ * Authors:
+ *   Florian octo Forster <octo at verplant.org>
+ *   Sebastian tokkee Harl <sh at tokkee.org>
+ **/
+
+#include "utils_complain.h"
+#include "plugin.h"
+
+/* vcomplain returns 0 if it did not report, 1 else */
+static int vcomplain (int level, c_complain_t *c,
+               const char *format, va_list ap)
+{
+       time_t now;
+       char   message[512];
+
+       now = time (NULL);
+
+       if (c->last + c->interval > now)
+               return 0;
+
+       c->last = now;
+
+       if (c->interval < interval_g)
+               c->interval = interval_g;
+       else
+               c->interval *= 2;
+
+       if (c->interval > 86400)
+               c->interval = 86400;
+
+       vsnprintf (message, sizeof (message), format, ap);
+       message[sizeof (message) - 1] = '\0';
+
+       plugin_log (level, message);
+       return 1;
+} /* vcomplain */
+
+void c_complain (int level, c_complain_t *c, const char *format, ...)
+{
+       va_list ap;
+
+       /* reset the old interval */
+       if (c->interval < 0)
+               c->interval *= -1;
+
+       va_start (ap, format);
+       vcomplain (level, c, format, ap);
+       va_end (ap);
+} /* c_complain */
+
+void c_complain_once (int level, c_complain_t *c, const char *format, ...)
+{
+       va_list ap;
+
+       if (c->interval < 0)
+               return;
+
+       va_start (ap, format);
+       if (vcomplain (level, c, format, ap))
+               c->interval *= -1;
+       va_end (ap);
+} /* c_complain_once */
+
+void c_release (int level, c_complain_t *c, const char *format, ...)
+{
+       char message[512];
+       va_list ap;
+
+       if (c->interval == 0)
+               return;
+
+       c->interval = 0;
+
+       va_start (ap, format);
+       vsnprintf (message, sizeof (message), format, ap);
+       message[sizeof (message) - 1] = '\0';
+       va_end (ap);
+
+       plugin_log (level, message);
+} /* c_release */
+
+/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
+