From ce184a14861ea3ec7d74e1767fed785b253b0d29 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ale=C5=A1=20K=C5=99enek?= <ljocha@ics.muni.cz>
Date: Thu, 26 Nov 2009 15:44:32 +0000
Subject: [PATCH] write pid into file (bug #52451)

---
 org.glite.lb.logger/src/interlogd.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/org.glite.lb.logger/src/interlogd.c b/org.glite.lb.logger/src/interlogd.c
index e6ebded..220470e 100644
--- a/org.glite.lb.logger/src/interlogd.c
+++ b/org.glite.lb.logger/src/interlogd.c
@@ -10,6 +10,7 @@
 #include <signal.h>
 #include <pthread.h>
 #include <errno.h>
+#include <assert.h>
 
 #include "interlogd.h"
 #include "glite/lb/log_proto.h"
@@ -22,12 +23,15 @@
 #if defined(IL_NOTIFICATIONS)
 #define DEFAULT_PREFIX "/tmp/notif_events"
 #define DEFAULT_SOCKET "/tmp/notif_interlogger.sock"
+#define DEFAULT_PIDFILE "/var/glite/glite-lb-notif-interlogd.pid"
 #else
 #define DEFAULT_PREFIX EDG_WLL_LOG_PREFIX_DEFAULT
 #define DEFAULT_SOCKET "/tmp/interlogger.sock"
+#define DEFAULT_PIDFILE  "/var/glite/glite-lb-interlogd.pid"
 #endif
 
 
+
 /* The name the program was run with, stripped of any leading path. */
 char *program_name;
 int killflg = 0;
@@ -39,6 +43,8 @@ pthread_mutex_t cred_handle_lock = PTHREAD_MUTEX_INITIALIZER;
 
 time_t key_mtime = 0, cert_mtime = 0;
 
+static char *pidfile = DEFAULT_PIDFILE;
+
 static void usage (int status)
 {
 	printf("%s - \n"
@@ -54,6 +60,7 @@ static void usage (int status)
 	       "  -k, --key  <file>          location of server private key\n"
 	       "  -C, --CAdir <dir>          directory containing CA certificates\n"
 	       "  -b, --book                 send events to bookkeeping server only\n"
+	       "  -i, --pidfile		     pid file\n"
 	       "  -l, --log-server <host>    specify address of log server\n"
 	       "  -s, --socket <path>        non-default path of local socket\n"
 	       "  -L, --lazy [<timeout>]     be lazy when closing connections to servers (default, timeout==0 means turn lazy off)\n"
@@ -105,6 +112,7 @@ static struct option const long_options[] =
   {"key", required_argument, 0, 'k'},
   {"book", no_argument, 0, 'b'},
   {"CAdir", required_argument, 0, 'C'},
+  {"pidfile", required_argument, 0, 'i'},
   {"log-server", required_argument, 0, 'l'},
   {"socket", required_argument, 0, 's'},
   {"lazy", optional_argument, 0, 'L'},
@@ -143,6 +151,7 @@ decode_switches (int argc, char **argv)
 			   "k:"          /* key */
 			   "C:"          /* CA dir */
 			   "b"  /* only bookeeping */
+			   "i:"  /* pidfile*/
                "l:" /* log server */
 			   "d" /* debug */
 			   "p" /* parallel */
@@ -198,6 +207,10 @@ decode_switches (int argc, char **argv)
 	  log_server = strdup(optarg);
 	  break;
 
+	case 'i': 
+	  pidfile = strdup(optarg);
+	  break;
+
 	case 'C':
 	  CAcert_dir = strdup(optarg);
 	  break;
@@ -279,6 +292,7 @@ main (int argc, char **argv)
   char *p;
   edg_wll_GssStatus gss_stat;
   int ret;
+  FILE *pidf;
 
   program_name = argv[0];
 
@@ -308,12 +322,23 @@ main (int argc, char **argv)
     exit(EXIT_FAILURE);
   }
 
+/* just try it before deamonizing to be able to complain aloud */
+  if (!(pidf = fopen(pidfile,"w"))) {
+	perror(pidfile);
+	exit(EXIT_FAILURE);
+  }
+  fclose(pidf);
+
   if(!debug &&
      (daemon(0,0) < 0)) {
     perror("daemon");
     exit(EXIT_FAILURE);
   }
 
+  pidf = fopen(pidfile,"w"); assert(pidf); /* XXX */
+  fprintf(pidf,"%d\n",getpid());
+  fclose(pidf);
+
 #ifdef LB_PERF
   /* this must be called after installing signal handlers */
   glite_wll_perftest_init(NULL, /* host */
-- 
1.8.2.3