vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "apache");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "apache");
strcpy (vl.plugin_instance, "");
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "apcups");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "apple_sensors");
strcpy (vl.plugin_instance, "");
strcpy (vl.type_instance, type_instance);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "battery");
strcpy (vl.plugin_instance, plugin_instance);
#include "plugin.h"
#include "configfile.h"
-static int loop = 0;
-
+/*
+ * Global variables
+ */
+char hostname_g[DATA_MAX_NAME_LEN];
+int interval_g;
#if HAVE_LIBKSTAT
kstat_ctl_t *kc;
#endif /* HAVE_LIBKSTAT */
-/*
- * exported variables
- */
-time_t curtime;
+static int loop = 0;
static void sigIntHandler (int signal)
{
loop++;
}
+static int init_global_variables (void)
+{
+ const char *str;
+
+ str = global_option_get ("Hostname");
+ if (str != NULL)
+ {
+ strncpy (hostname_g, str, sizeof (hostname_g));
+ }
+ else
+ {
+ if (gethostname (hostname_g, sizeof (hostname_g)) != 0)
+ {
+ fprintf (stderr, "`gethostname' failed and no "
+ "hostname was configured.\n");
+ return (-1);
+ }
+ }
+ DBG ("hostname_g = %s;", hostname_g);
+
+ str = global_option_get ("Interval");
+ if (str == NULL)
+ str = COLLECTD_STEP;
+ interval_g = atoi (str);
+ if (interval_g <= 0)
+ {
+ fprintf (stderr, "Cannot set the interval to a correct value.\n"
+ "Please check your settings.\n");
+ return (-1);
+ }
+ DBG ("interval_g = %i;", interval_g);
+
+ return (0);
+} /* int init_global_variables */
+
static int change_basedir (const char *orig_dir)
{
char *dir = strdup (orig_dir);
static int do_loop (void)
{
- int step;
-
struct timeval tv_now;
struct timeval tv_next;
struct timespec ts_wait;
- step = atoi (COLLECTD_STEP);
- if (step <= 0)
- step = 10;
-
while (loop == 0)
{
if (gettimeofday (&tv_next, NULL) < 0)
syslog (LOG_ERR, "gettimeofday failed: %s", strerror (errno));
return (-1);
}
- tv_next.tv_sec += step;
+ tv_next.tv_sec += interval_g;
#if HAVE_LIBKSTAT
update_kstat ();
#endif
- /* `curtime' is used by many (all?) plugins as the
- * data-sample-time passed to RRDTool */
- curtime = time (NULL);
/* Issue all plugins */
plugin_read_all (&loop);
struct sigaction sigIntAction;
struct sigaction sigTermAction;
char *configfile = CONFIGFILE;
- const char *datadir;
+ const char *basedir;
#if COLLECT_DAEMON
struct sigaction sigChldAction;
pid_t pid;
* Change directory. We do this _after_ reading the config and loading
* modules to relative paths work as expected.
*/
- if ((datadir = global_option_get ("BaseDir")) == NULL)
+ if ((basedir = global_option_get ("BaseDir")) == NULL)
{
- fprintf (stderr, "Don't have a datadir to use. This should not happen. Ever.");
+ fprintf (stderr, "Don't have a basedir to use. This should not happen. Ever.");
return (1);
}
- else if (change_basedir (datadir))
+ else if (change_basedir (basedir))
{
- fprintf (stderr, "Error: Unable to change to directory `%s'.\n", datadir);
+ fprintf (stderr, "Error: Unable to change to directory `%s'.\n", basedir);
return (1);
}
+ /*
+ * Set global variables or, if that failes, exit. We cannot run with
+ * them being uninitialized. If nothing is configured, then defaults
+ * are being used. So this means that the user has actually done
+ * something wrong.
+ */
+ if (init_global_variables () != 0)
+ return (1);
+
#if COLLECT_DAEMON
/*
* fork off child
Sets the file to write debugging output to. This is only used if compiled with
debugging enabled. It's ignored otherwise.
+=item B<Interval> I<Seconds>
+
+Configures the interval in which to query the read plugins. Obviously smaller
+values lead to a higher system load produces by collectd, while higher values
+lead to more coarse statistics. Please note that changing this value may render
+your RRD-files unuseable, if you use the C<rrdtool plugin>. You have been
+warned.
+
=back
=head1 PLUGIN OPTIONS
#define STATIC_ARRAY_LEN(array) (sizeof (array) / sizeof ((array)[0]))
-extern time_t curtime;
-
-int pidfile_set (const char *file);
-const char *pidfile_get (void);
+extern char hostname_g[];
+extern int interval_g;
/* int main (int argc, char **argv); */
static cf_global_option_t cf_global_options[] =
{
- {"BaseDir", NULL, PKGLOCALSTATEDIR},
- {"LogFile", NULL, LOGFILE},
- {"PIDFile", NULL, PIDFILE}
+ {"BaseDir", NULL, PKGLOCALSTATEDIR},
+ {"LogFile", NULL, LOGFILE},
+ {"PIDFile", NULL, PIDFILE},
+ {"Hostname", NULL, NULL},
+ {"Interval", NULL, "10"}
};
static int cf_global_options_num = STATIC_ARRAY_LEN (cf_global_options);
{
int i;
+ DBG ("option = %s; value = %s;", option, value);
+
for (i = 0; i < cf_global_options_num; i++)
if (strcasecmp (cf_global_options[i].key, option) == 0)
break;
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "cpu");
snprintf (vl.plugin_instance, sizeof (vl.type_instance),
"%i", cpu_num);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "cpufreq");
snprintf (vl.type_instance, sizeof (vl.type_instance),
"%i", cpu_num);
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "df");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "disk");
strncpy (vl.plugin_instance, plugin_instance,
sizeof (vl.plugin_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "dns");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "dns");
plugin_dispatch_values ("dns_octets", &vl);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "entropy");
strcpy (vl.plugin_instance, "");
strcpy (vl.type_instance, "");
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "exec");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "exec");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "hddtemp");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "irq");
status = snprintf (vl.type_instance, sizeof (vl.type_instance),
vl.values = values;
vl.values_len = 3;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "load");
strcpy (vl.plugin_instance, "");
strcpy (vl.type_instance, "");
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "mbmon");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 4;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "memory");
plugin_dispatch_values ("memory", &vl);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "multimeter");
plugin_dispatch_values ("multimeter", &vl);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "mysql");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 5;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "mysql");
plugin_dispatch_values ("mysql_qcache", &vl);
vl.values = values;
vl.values_len = 4;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "mysql");
plugin_dispatch_values ("mysql_threads", &vl);
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "mysql");
plugin_dispatch_values ("mysql_octets", &vl);
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "nfs");
strncpy (vl.plugin_instance, plugin_instance,
sizeof (vl.plugin_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "ntpd");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "ping");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, host, sizeof (vl.type_instance));
static char *plugindir = NULL;
-char hostname[DATA_MAX_NAME_LEN] = "localhost";
-
/*
* Static functions
*/
llentry_t *le;
int status;
- gethostname (hostname, sizeof (hostname));
-
if (list_init == NULL)
return;
unsigned int delay; /* how many more iterations we still need to wait */
} complain_t;
-extern char hostname[DATA_MAX_NAME_LEN];
-
/*
* NAME
* plugin_set_dir
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "processes");
strcpy (vl.plugin_instance, "");
strncpy (vl.type_instance, state, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "processes");
strncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
return (-1);
memset (rra_def, '\0', (rra_max + 1) * sizeof (char *));
- step = atoi (COLLECTD_STEP);
+ step = interval_g;
+ /* FIXME: Use config here */
rows = atoi (COLLECTD_ROWS);
if ((step <= 0) || (rows <= 0))
char **ds_def;
int ds_num;
int i, j;
+ char step[16];
int status = 0;
if (check_create_dir (filename))
return (-1);
}
+ status = snprintf (step, sizeof (step), "%i", interval_g);
+ if ((status < 1) || (status >= sizeof (step)))
+ {
+ syslog (LOG_ERR, "rrdtool plugin: snprintf failed.");
+ return (-1);
+ }
+
argv[0] = "create";
argv[1] = filename;
argv[2] = "-s";
- argv[3] = COLLECTD_STEP;
+ argv[3] = step;
j = 4;
for (i = 0; i < ds_num; i++)
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "sensors");
strcpy (vl.plugin_instance, plugin_instance);
strcpy (vl.type_instance, type_instance);
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "serial");
strncpy (vl.type_instance, type_instance,
sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "swap");
strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "tape");
strncpy (vl.plugin_instance, plugin_instance,
sizeof (vl.plugin_instance));
vl.values = values;
vl.values_len = 2;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "interface");
strncpy (vl.type_instance, dev, sizeof (vl.type_instance));
vl.values = values;
vl.values_len = 1;
vl.time = time (NULL);
- strcpy (vl.host, hostname);
+ strcpy (vl.host, hostname_g);
strcpy (vl.plugin, "wireless");
strncpy (vl.plugin_instance, plugin_instance,
sizeof (vl.plugin_instance));