write pid of forked process

ChangeLog

@@ -1,6 +1,7 @@
 ????-??-??: 2.2.2
 	 fix: checkgauge 'insist'
 	 fix: no partial path exlusion tests
+	 fix: write pid of forked process in pidfile
 
 2017-01-05: 2.2.1
 	enhancement: now always using filter lists with rysnc

lsyncd.c

@@ -677,7 +677,8 @@ non_block_fd( int fd )
 | Writes a pid file.
 */
 static void
-write_pidfile(
+write_pidfile
+(
 	lua_State *L,
 	const char *pidfile
 )
@@ -970,12 +971,13 @@ user_obs_tidy( struct observance *obs )
 }
 
 
-/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
+/******************************.
-(     Library calls for the runner          )
+* Library calls for the runner *
- *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+'******************************/
 
 
-static void daemonize( lua_State *L );
+static void daemonize( lua_State *L, const char *pidfile );
+
 int l_stackdump( lua_State* L );
 
 
@@ -1612,16 +1614,11 @@ l_configure( lua_State *L )
 			openlog( log_ident, 0, settings.log_facility );
 		}
 
-		if( settings.pidfile )
-		{
-			write_pidfile( L, settings.pidfile );
-		}
-
 		if( !settings.nodaemon && !is_daemon )
 		{
 			logstring( "Normal", "--- Startup, daemonizing ---" );
 
-			daemonize( L );
+			daemonize( L, settings.pidfile );
 		}
 		else
 		{
@@ -2053,7 +2050,10 @@ load_runner_func(
 |      might actually close the monitors fd!
 */
 static void
-daemonize( lua_State *L )
+daemonize(
+	lua_State *L,       // the lua state
+	const char *pidfile // if not NULL write pidfile
+)
 {
 	pid_t pid, sid;
 
@@ -2070,14 +2070,21 @@ daemonize( lua_State *L )
 		exit( -1 );
 	}
 
-	if (pid > 0)
+	if( pid > 0 )
 	{
 		 // parent process returns to shell
 	 	exit( 0 );
 	}
 
+	if( pidfile )
+	{
+		write_pidfile( L, pidfile );
+	}
+
+
 	// detaches the new process from the parent process
 	sid = setsid( );
+
 	if( sid < 0 )
 	{
 		printlogf(

lsyncd.lua

@@ -4967,7 +4967,8 @@ runner.fsEventsEvent = Fsevents.event
 --
 -- Collector for every child process that finished in startup phase
 --
-function runner.collector(
+function runner.collector
+(
 	pid,       -- pid of the child process
 	exitcode   -- exitcode of the child process
 )