From ab4b9c86bff136ee2c32e911f09c4359a8817810 Mon Sep 17 00:00:00 2001
From: Yun Liu <yun@yun.(none)>
Date: Thu, 23 Oct 2008 12:21:20 -0400
Subject: [PATCH] Fix bug ticket #54
---
src/global.h | 2 +-
src/main.cpp | 39 ++++++++++++++++++++++++++++++++++++++-
2 files changed, 39 insertions(+), 2 deletions(-)
diff --git a/src/global.h b/src/global.h
index c03cc43b72..69ac066acc 100644
--- a/src/global.h
+++ b/src/global.h
@@ -35,7 +35,7 @@ typedef short int16;
#define ASSERT( expected , value) if( value == expected ) return SUCCESS; \
else return 1;
-
+#define PIDFILE "sfl.pid"
#ifdef DATAFORMAT_IS_FLOAT
#define SFLDataFormat float32
#define SFLDataFormatString "Float32"
diff --git a/src/main.cpp b/src/main.cpp
index 0247fa23a7..22a6c5b93e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -22,7 +22,7 @@
#include <libintl.h>
#include <cstring>
#include <iostream>
-
+#include <string>
//#include "config.h"
#include "global.h"
@@ -50,6 +50,43 @@ main (int argc, char **argv) {
printf(_("See http://www.sflphone.org/ for more information\n"));
} else {
+ FILE *fp;
+ char homepid[128];
+
+ unsigned int iPid = getpid();
+ char cPid[64], cOldPid[64];
+ sprintf(cPid,"%d", iPid);
+
+ sprintf(homepid, "%s/.%s/%s", HOMEDIR, PROGDIR, PIDFILE);
+
+ if( (fp = fopen(homepid,"r")) == NULL ){
+ //PID file doesn't exists, create and write pid in it
+ if( (fp = fopen(homepid,"w")) == NULL ){
+ fprintf(stderr, _("Creating PID file %s failed. Exited.\n"), homepid);
+ exit(-1);
+ } else {
+ fputs(cPid , fp );
+ fclose( fp );
+ }
+ } else {
+ // PID file exists. Check the former process still alive or not. If alive, kill it and start a new one.
+ fgets( cOldPid, 64, fp );
+ fclose(fp);
+ if (kill(atoi(cOldPid), 0) == SUCCESS) {
+ fprintf(stderr, _("There is already a sflphoned daemon running in the system. Starting Failed.\n"));
+ exit(-1);
+ } else {
+ if( (fp = fopen(homepid,"w")) == NULL ){
+ fprintf(stderr, _("Writing to PID file %s failed. Exited.\n"), homepid);
+ exit(-1);
+ } else {
+ fputs(cPid , fp );
+ fclose( fp );
+ }
+
+ }
+ }
+
int sessionPort = 0;
if (argc == 2) {
char* ptrPort = strstr(argv[1], "--port=");
--
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