From 039a3b40c38afd98d02c7545ebf7421b0b10398a Mon Sep 17 00:00:00 2001
From: Radu Ioan Fericean <radu@fericean.ro>
Date: Wed, 27 Jun 2012 13:44:51 +0300
Subject: [PATCH] handling sig hup signal for scheduler

---
 cmd/cgr-scheduler/cgr-scheduler.go | 33 ++++++++++++++++++++++++------
 timespans/actions.go               |  2 --
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/cmd/cgr-scheduler/cgr-scheduler.go b/cmd/cgr-scheduler/cgr-scheduler.go
index a3c23f51e..42909df03 100644
--- a/cmd/cgr-scheduler/cgr-scheduler.go
+++ b/cmd/cgr-scheduler/cgr-scheduler.go
@@ -19,11 +19,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package main
 
 import (
-	"log"
-	"github.com/cgrates/cgrates/timespans"
 	"flag"
-	"time"
+	"github.com/cgrates/cgrates/timespans"
+	"log"
+	"os"
 	"sort"
+	"time"
+	"os/signal"
+	"syscall"
 )
 
 var (
@@ -72,17 +75,35 @@ func (s scheduler) loop() {
 	}
 }
 
-func main() {
-	flag.Parse()
+// Listens for the HUP system signal and gracefuly reloads the timers from database.
+func stopSingnalHandler() {
+	log.Print("Handling HUP signal...")
+	c := make(chan os.Signal)
+	signal.Notify(c, syscall.SIGHUP)
+	sig := <-c
+
+	log.Printf("Caught signal %v, reloading action timings.\n", sig)
+	loadActionTimings()
+}
+
+func loadActionTimings() (actionTimings []*timespans.ActionTiming, err error) {
 	storage, err := timespans.NewRedisStorage(*redisserver, *redisdb)
+	defer storage.Close()
 	if err != nil {
 		log.Fatalf("Could not open database connection: %v", err)
 	}
-	actionTimings, err := storage.GetAllActionTimings()
+	actionTimings, err = storage.GetAllActionTimings()
+	return
+}
+
+func main() {
+	flag.Parse()
+	actionTimings, err := loadActionTimings()
 	if err != nil {
 		log.Fatalf("Cannot get action timings:", err)
 	}
 	s := scheduler{}
 	s.queue = append(s.queue, actionTimings...)
+	go stopSingnalHandler()
 	s.loop()
 }
diff --git a/timespans/actions.go b/timespans/actions.go
index 58a7db8c2..6f1fd6935 100644
--- a/timespans/actions.go
+++ b/timespans/actions.go
@@ -186,7 +186,6 @@ MONTHS:
 					// reset the monthday
 					if i.MonthDays != nil {
 						t = time.Date(t.Year(), t.Month(), i.MonthDays[0], t.Hour(), t.Minute(), t.Second(), 0, t.Location())
-						log.Print("here: ", i.MonthDays)
 					}
 				}
 			} else { // today was not found in the list, x is the first greater day
@@ -194,7 +193,6 @@ MONTHS:
 				// reset the monthday
 				if i.MonthDays != nil {
 					t = time.Date(t.Year(), t.Month(), i.MonthDays[0], t.Hour(), t.Minute(), t.Second(), 0, t.Location())
-					log.Print("here1: ", i.MonthDays)
 				}
 			}
 		}