processes plugin: Implement number of processes and number of threads/LWPs of a speci...

diff --git a/src/processes.c b/src/processes.c
index 403fb7fa43c3f1a7c0de5c87a109deb47f9d268f..0b52b9895209f09ab61b27429f4169fa3ee3236a 100644 (file)
--- a/src/processes.c
+++ b/src/processes.c
@@ -122,6 +122,15 @@ static char *ps_cputime_ds_def[] =
 };
 static int ps_cputime_ds_num = 2;
 
+static char *ps_count_file = "processes/ps_count-%s.rrd";
+static char *ps_count_ds_def[] =
+{
+       "DS:processes:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
+       "DS:threads:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
+       NULL
+};
+static int ps_count_ds_num = 2;
+
 static char *config_keys[] =
 {
        "CollectName",
@@ -306,6 +315,21 @@ static void ps_cputime_write (char *host, char *inst, char *val)
                        ps_cputime_ds_def, ps_cputime_ds_num);
 }
 
+static void ps_count_write (char *host, char *inst, char *val)
+{
+       char filename[256];
+       int status;
+
+       status = snprintf (filename, 256, ps_count_file, inst);
+       if ((status < 1) || (status >= 256))
+               return;
+
+       DBG ("host = %s; filename = %s; val = %s;",
+                       host, filename, val);
+       rrd_update_file (host, filename, val,
+                       ps_count_ds_def, ps_count_ds_num);
+}
+
 #if PROCESSES_HAVE_READ
 static void ps_submit (int running,
                int sleeping,
@@ -349,6 +373,12 @@ static void ps_submit_proc (procstat_t *ps)
        buffer[63] = '\0';
        plugin_submit ("ps_cputime", ps->name, buffer);
 
+       snprintf (buffer, 64, "%u:%u:%u",
+                       (unsigned int) curtime,
+                       ps->num_proc, ps->num_lwp);
+       buffer[63] = '\0';
+       plugin_submit ("ps_count", ps->name, buffer);
+
        DBG ("name = %s; num_proc = %i; num_lwp = %i; vmem_rss = %i; "
                        "vmem_minflt = %i; vmem_majflt = %i; "
                        "cpu_user = %i; cpu_system = %i;",
@@ -760,6 +790,7 @@ void module_register (void)
        plugin_register (MODULE_NAME, ps_init, ps_read, ps_write);
        plugin_register ("ps_rss", NULL, NULL, ps_rss_write);
        plugin_register ("ps_cputime", NULL, NULL, ps_cputime_write);
+       plugin_register ("ps_count", NULL, NULL, ps_count_write);
        cf_register (MODULE_NAME, ps_config, config_keys, config_keys_num);
 }