support new checker api

With this, it is now possible to support multiple check instances and
balance the load.

1 files changed, 10 insertions, 13 deletions

diff --git a/cmd/moncheck/main.go b/cmd/moncheck/main.go
index 6aa34a5..3bac52e 100644
--- a/cmd/moncheck/main.go
+++ b/cmd/moncheck/main.go
@@ -27,11 +27,12 @@ var (
 
 type (
 	Config struct {
-		DB      string   `json:"db"`
-		Timeout string   `json:"timeout"`
-		Wait    string   `json:"wait"`
-		Path    []string `json:"path"`
-		Workers int      `json:"workers"`
+		DB        string   `json:"db"`
+		Timeout   string   `json:"timeout"`
+		Wait      string   `json:"wait"`
+		Path      []string `json:"path"`
+		Workers   int      `json:"workers"`
+		CheckerID int      `json:"checker_id"`
 	}
 
 	States []int
@@ -73,14 +74,14 @@ func main() {
 	}
 
 	for i := 0; i < config.Workers; i++ {
-		go check(i, db, waitDuration, timeout, hostname)
+		go check(i, db, waitDuration, timeout, hostname, config.CheckerID)
 	}
 	wg := sync.WaitGroup{}
 	wg.Add(1)
 	wg.Wait()
 }
 
-func check(thread int, db *sql.DB, waitDuration, timeout time.Duration, hostname string) {
+func check(thread int, db *sql.DB, waitDuration, timeout time.Duration, hostname string, checker_id int) {
 	for {
 		tx, err := db.Begin()
 		if err != nil {
@@ -91,14 +92,10 @@ func check(thread int, db *sql.DB, waitDuration, timeout time.Duration, hostname
 		from active_checks
 		where next_time < now()
 			and enabled
+			and checker_id = $1
 		order by next_time
 		for update skip locked
-		limit 1;`)
-		if err != nil {
-			log.Printf("[%d] could not start query: %s", thread, err)
-			tx.Rollback()
-			continue
-		}
+		limit 1;`, checker_id)
 		var (
 			id      int64
 			cmdLine []string