Completed the documentation of the new `-P' commandline option.

[collectd.git] / src / collectd.c

diff --git a/src/collectd.c b/src/collectd.c
index e069bfe..98b9a16 100644 (file)
--- a/src/collectd.c
+++ b/src/collectd.c
@@ -123,6 +123,8 @@ static void exit_usage (char *name)
                        "  General:\n"
                        "    -C <file>       Configuration file.\n"
                        "                    Default: "CONFIGFILE"\n"
+                       "    -P <file>       PID-file.\n"
+                       "                    Default: "PIDFILE"\n"
 #if COLLECT_DAEMON
                        "    -f              Don't fork to the background.\n"
 #endif
@@ -281,8 +283,7 @@ int main (int argc, char **argv)
        char *configfile = CONFIGFILE;
 #if COLLECT_DAEMON
        struct sigaction sigChldAction;
-       char *pidfile    = PIDFILE;
-       int have_pidfile = 0;
+       char *pidfile    = NULL;
        pid_t pid;
        int daemonize    = 1;
 #endif
@@ -320,8 +321,7 @@ int main (int argc, char **argv)
                                break;
 #if COLLECT_DAEMON
                        case 'P':
-                               pidfile      = optarg;
-                               have_pidfile = 1;
+                               pidfile = optarg;
                                break;
                        case 'f':
                                daemonize = 0;
@@ -373,7 +373,7 @@ int main (int argc, char **argv)
        sigChldAction.sa_handler = SIG_IGN;
        sigaction (SIGCHLD, &sigChldAction, NULL);
 
-       if ((1 != have_pidfile)
+       if ((pidfile == NULL)
                        && ((pidfile = cf_get_option ("PIDFile", PIDFILE)) == NULL))
        {
                fprintf (stderr, "Cannot obtain pidfile. This shoud not happen. Ever.");