Added the apache plugin to the manpages.

[collectd.git] / src / collectd.c

diff --git a/src/collectd.c b/src/collectd.c
index c2c6dc0..5a17124 100644 (file)
--- a/src/collectd.c
+++ b/src/collectd.c
@@ -25,7 +25,7 @@
 #include "common.h"
 #include "utils_debug.h"
 
-#include "multicast.h"
+#include "network.h"
 #include "plugin.h"
 #include "configfile.h"
 
@@ -138,6 +138,8 @@ static void exit_usage (char *name)
 #if COLLECT_DEBUG
                        "  Log-File          "LOGFILE"\n"
 #endif
+                       "  Step              "COLLECTD_STEP" seconds\n"
+                       "  Heartbeat         "COLLECTD_HEARTBEAT" seconds\n"
                        "\n"PACKAGE" "VERSION", http://verplant.org/collectd/\n"
                        "by Florian octo Forster <octo@verplant.org>\n"
                        "for contributions see `AUTHORS'\n");
@@ -146,7 +148,15 @@ static void exit_usage (char *name)
 
 static int start_client (void)
 {
-       int sleepingtime;
+       int step;
+
+       struct timeval tv_now;
+       struct timeval tv_next;
+       struct timespec ts_wait;
+
+       step = atoi (COLLECTD_STEP);
+       if (step <= 0)
+               step = 10;
 
 #if HAVE_LIBKSTAT
        kc = NULL;
@@ -171,18 +181,42 @@ static int start_client (void)
 
        while (loop == 0)
        {
-               curtime = time (NULL);
+               if (gettimeofday (&tv_next, NULL) < 0)
+               {
+                       syslog (LOG_ERR, "gettimeofday failed: %s", strerror (errno));
+                       return (-1);
+               }
+               tv_next.tv_sec += step;
+
 #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 ();
 
-               sleepingtime = 10;
-               while (sleepingtime != 0)
+               if (gettimeofday (&tv_now, NULL) < 0)
                {
-                       if (loop != 0)
+                       syslog (LOG_ERR, "gettimeofday failed: %s", strerror (errno));
+                       return (-1);
+               }
+
+               if (timeval_sub_timespec (&tv_next, &tv_now, &ts_wait) != 0)
+               {
+                       syslog (LOG_WARNING, "No sleeping because `timeval_sub_timespec' returned non-zero!");
+                       continue;
+               }
+
+               while (nanosleep (&ts_wait, &ts_wait) == -1)
+               {
+                       if (errno != EINTR)
+                       {
+                               syslog (LOG_ERR, "nanosleep failed: %s", strerror (errno));
                                break;
-                       sleepingtime = sleep (sleepingtime);
+                       }
                }
        }
 
@@ -192,6 +226,7 @@ static int start_client (void)
 #if HAVE_LIBRRD
 static int start_server (void)
 {
+       /* FIXME use stack here! */
        char *host;
        char *type;
        char *instance;
@@ -199,7 +234,7 @@ static int start_server (void)
 
        while (loop == 0)
        {
-               if (multicast_receive (&host, &type, &instance, &values) == 0)
+               if (network_receive (&host, &type, &instance, &values) == 0)
                        plugin_write (host, type, instance, values);
 
                if (host     != NULL) free (host);     host     = NULL;