- PID file

ChangeLog

@@ -1,5 +1,6 @@
 0.5.5
 =====
+   2-Apr-2004:  - PID file
   31-Mar-2004:  - accessctl.c: text correction in ERROR output
   30-Mar-2004:  - Again '*' Contact header in unREGISTER
                 - new: tools/extract_sip.pl 

doc/siproxd.conf.example

@@ -79,6 +79,12 @@ user = nobody
 #   the specified directory path does exist!
 registration_file = /var/lib/siproxd/siproxd_registrations
 
+######################################################################
+# PID file:
+#   Where to create the PID file.
+#   This file holds the PID of the main thread of siproxd.
+pid_file = /var/run/siproxd/siproxd.pid
+
 ######################################################################
 # global switch to control the RTP proxy behaviour
 #       0 - RTP proxy disabled

src/readconf.c

@@ -169,6 +169,7 @@ static int parse_config (FILE *configfile) {
       { "outbound_proxy_port", TYP_INT4,   &configuration.outbound_proxy_port },
       { "registration_file",   TYP_STRING ,&configuration.registrationfile },
       { "log_calls",           TYP_INT4,   &configuration.log_calls },
+      { "pid_file",            TYP_STRING ,&configuration.pid_file },
       {0, 0, 0}
    };
 

src/siproxd.c

@@ -190,6 +190,23 @@ int main (int argc, char *argv[])
       INFO("daemonized, pid=%i", getpid());
    }
 
+   /* write PID file of main thread */
+   if (configuration.pid_file) {
+      FILE *pidfile;
+      DEBUGC(DBCLASS_CONFIG,"creating PID file [%s]", configuration.pid_file);
+      sts=unlink(configuration.pid_file);
+      if ((sts==0) ||(errno == ENOENT)) {
+         if ((pidfile=fopen(configuration.pid_file, "w"))) {
+            fprintf(pidfile,"%i\n",getpid());
+            fclose(pidfile);
+         } else {
+            WARN("couldn't create new PID file: %s", strerror(errno));
+         }
+      } else {
+         WARN("couldn't delete old PID file: %s", strerror(errno));
+      }
+   }
+
    /* initialize the RTP proxy */
    sts=rtpproxy_init();
    if (sts != STS_SUCCESS) {
@@ -441,9 +458,20 @@ int main (int argc, char *argv[])
    } /* while TRUE */
    exit_prg:
 
+   /* dump current knwon SIP registrations */
    register_shut();
    INFO("properly terminating siproxd");
 
+   /* remove PID file */
+   if (configuration.pid_file) {
+      DEBUGC(DBCLASS_CONFIG,"deleting PID file [%s]", configuration.pid_file);
+      sts=unlink(configuration.pid_file);
+      if (sts != 0) {
+         WARN("couldn't delete old PID file: %s", strerror(errno));
+      }
+   }
+
+   /* END */
    return 0;
 } /* main */
 

src/siproxd.h

@@ -151,6 +151,7 @@ struct siproxd_config {
    int  outbound_proxy_port;
    char *registrationfile;
    int  log_calls;
+   char *pid_file;
 };