-/*
- * users.c
+/**
+ * collectd - src/users.c
+ * Copyright (C) 2005-2007 Sebastian Harl
+ * Copyright (C) 2005 Niki W. Waibel
+ * Copyright (C) 2005-2007 Florian octo Forster
+ * Copyright (C) 2008 Oleg King
*
- * users plugin for collectd
+ * 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 plugin collects the number of users currently logged into the system.
+ * 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.
*
- * Written by Sebastian Harl <sh@tokkee.org>
+ * 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
*
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "users.h"
-
-#if COLLECT_USERS
-#define MODULE_NAME "users"
-
-#include "plugin.h"
+ * Authors:
+ * Sebastian Harl <sh at tokkee.org>
+ * Niki W. Waibel <niki.waibel at newlogic.com>
+ * Florian octo Forster <octo at collectd.org>
+ * Oleg King <king2 at kaluga.ru>
+ **/
+
+#include "collectd.h"
#include "common.h"
+#include "plugin.h"
-#ifdef HAVE_UTMPX_H
-#include <utmpx.h>
-#elif defined(HAVE_UTMP_H)
-#include <utmp.h>
-#endif
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif /* HAVE_STATGRAB_H */
-static char *rrd_file = "users.rrd";
+#if HAVE_UTMPX_H
+# include <utmpx.h>
+/* #endif HAVE_UTMPX_H */
-static char *ds_def[] = {
- "DS:users:GAUGE:25:0:65535",
- NULL
-};
-static int ds_num = 1;
+#elif HAVE_UTMP_H
+# include <utmp.h>
+/* #endif HAVE_UTMP_H */
-extern time_t curtime;
+#else
+# error "No applicable input method."
+#endif
-void users_init(void)
+static void users_submit (gauge_t value)
{
- /* we have nothing to do here :-) */
- return;
-}
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
-void users_read(void)
-{
-#ifdef HAVE_GETUTXENT
- unsigned int users = 0;
- struct utmpx *entry = NULL;
+ values[0].gauge = value;
- /* according to the *utent(3) man page none of the functions sets errno in
- * case of an error, so we cannot do any error-checking here */
- setutxent();
+ vl.values = values;
+ vl.values_len = 1;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "users", sizeof (vl.plugin));
+ sstrncpy (vl.type, "users", sizeof (vl.plugin));
- while (NULL != (entry = getutxent()))
- if (USER_PROCESS == entry->ut_type)
- ++users;
- endutxent();
+ plugin_dispatch_values (&vl);
+} /* void users_submit */
- users_submit(users);
+static int users_read (void)
+{
+#if HAVE_GETUTXENT
+ unsigned int users = 0;
+ struct utmpx *entry = NULL;
+
+ /* according to the *utent(3) man page none of the functions sets errno
+ in case of an error, so we cannot do any error-checking here */
+ setutxent();
+
+ while (NULL != (entry = getutxent())) {
+ if (USER_PROCESS == entry->ut_type) {
+ ++users;
+ }
+ }
+ endutxent();
+
+ users_submit (users);
/* #endif HAVE_GETUTXENT */
+
+#elif HAVE_GETUTENT
+ unsigned int users = 0;
+ struct utmp *entry = NULL;
-#elif defined(HAVE_GETUTENT)
- unsigned int users = 0;
- struct utmp *entry = NULL;
+ /* according to the *utent(3) man page none of the functions sets errno
+ in case of an error, so we cannot do any error-checking here */
+ setutent();
- /* according to the *utent(3) man page none of the functions sets errno in
- * case of an error, so we cannot do any error-checking here */
- setutent();
+ while (NULL != (entry = getutent())) {
+ if (USER_PROCESS == entry->ut_type) {
+ ++users;
+ }
+ }
+ endutent();
- while (NULL != (entry = getutent()))
- if (USER_PROCESS == entry->ut_type)
- ++users;
- endutent();
+ users_submit (users);
+/* #endif HAVE_GETUTENT */
- users_submit(users);
-#endif
+#elif HAVE_LIBSTATGRAB
+ sg_user_stats *us;
- return;
-}
+ us = sg_get_user_stats ();
+ if (us == NULL)
+ return (-1);
-/* I don't like this temporary macro definition - well it's used everywhere
- * else in the collectd-sources, so I will just stick with it... */
-#define BUFSIZE 256
-void users_submit(users)
- unsigned int users;
-{
- char buf[BUFSIZE] = "";
-
- if (snprintf(buf, BUFSIZE, "%u:%u",
- (unsigned int)curtime,
- users) >= BUFSIZE)
- return;
-
- plugin_submit(MODULE_NAME, NULL, buf);
- return;
-}
-#undef BUFSIZE
-
-void users_write(host, inst, val)
- char *host;
- char *inst;
- char *val;
-{
- rrd_update_file(host, rrd_file, val, ds_def, ds_num);
- return;
-}
+ users_submit ((gauge_t) us->num_entries);
+/* #endif HAVE_LIBSTATGRAB */
-void module_register(void)
-{
- plugin_register(MODULE_NAME, users_init, users_read, users_write);
- return;
-}
+#else
+# error "No applicable input method."
+#endif
-#undef MODULE_NAME
-#endif /* COLLECT_USERS */
+ return (0);
+} /* int users_read */
+void module_register (void)
+{
+ plugin_register_read ("users", users_read);
+} /* void module_register(void) */
projects / collectd.git / blobdiff