plugin.c plugin.h \
utils_avltree.c utils_avltree.h \
utils_cache.c utils_cache.h \
+ utils_complain.c utils_complain.h \
utils_ignorelist.c utils_ignorelist.h \
utils_llist.c utils_llist.h \
utils_tail_match.c utils_tail_match.h \
--- /dev/null
+/**
+ * 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 : */
+
--- /dev/null
+/**
+ * collectd - src/utils_complain.h
+ * 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>
+ **/
+
+#ifndef UTILS_COMPLAIN_H
+#define UTILS_COMPLAIN_H 1
+
+#include <time.h>
+
+typedef struct
+{
+ /* time of the last report */
+ time_t last;
+
+ /* how long to wait until reporting again
+ * 0 indicates that the complaint is no longer valid
+ * < 0 indicates that the complaint has been reported once
+ * => c_complain_once will not report again
+ * => c_complain uses the absolute value to reset the old value */
+ int interval;
+} c_complain_t;
+
+#define C_COMPLAIN_INIT { 0, 0 }
+
+/*
+ * NAME
+ * c_complain
+ *
+ * DESCRIPTION
+ * Complain about something. This function will report a message (usually
+ * indicating some error condition) using the collectd logging mechanism.
+ * When this function is called again, reporting the message again will be
+ * deferred by an increasing interval (up to one day) to prevent flooding
+ * the logs. A call to `c_release' resets the counter.
+ *
+ * PARAMETERS
+ * `level' The log level passed to `plugin_log'.
+ * `c' Identifier for the complaint.
+ * `format' Message format - see the documentation of printf(3).
+ */
+void c_complain (int level, c_complain_t *c, const char *format, ...);
+
+/*
+ * NAME
+ * c_complain_once
+ *
+ * DESCRIPTION
+ * Complain about something once. This function will not report anything
+ * again, unless `c_release' has been called in between. If used after some
+ * calls to `c_complain', it will report again on the next interval and stop
+ * after that.
+ *
+ * See `c_complain' for further details and a description of the parameters.
+ */
+void c_complain_once (int level, c_complain_t *c, const char *format, ...);
+
+/*
+ * NAME
+ * c_release
+ *
+ * DESCRIPTION
+ * Release a complaint. This will report a message once, marking the
+ * complaint as released.
+ *
+ * See `c_complain' for a description of the parameters.
+ */
+void c_release (int level, c_complain_t *c, const char *format, ...);
+
+#endif /* UTILS_COMPLAIN_H */
+
+/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
+
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