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ports.go
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ports.go
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package testfiles
import (
"fmt"
"os"
"strconv"
)
// This file contains helper methods and declarations so all unit
// tests use different ports.
//
// We also use it to allocate Zookeeper server IDs.
//
// Port definitions. Unit tests may run at the same time,
// so they should not use the same ports.
//
var (
// vtPortStart is the starting port for all tests.
vtPortStart = getPortStart()
// GoVtTopoEtcd2topoPort is used by the go/vt/topo/etcd2topo package.
// Takes two ports.
GoVtTopoEtcd2topoPort = vtPortStart
// GoVtTopoZk2topoPort is used by the go/vt/topo/zk2topo package.
// Takes three ports.
GoVtTopoZk2topoPort = GoVtTopoEtcd2topoPort + 2
// GoVtTabletserverCustomruleZkcustomrulePort is used by the go/vt/tabletserver/customrule/zkcustomrule package.
// Takes three ports.
GoVtTabletserverCustomruleZkcustomrulePort = GoVtTopoZk2topoPort + 3
// GoVtZktopoPort is used by the go/vt/zktopo package.
// Takes three ports.
GoVtZktopoPort = GoVtTabletserverCustomruleZkcustomrulePort + 3
// GoVtEtcdtopoPort is used by the go/vt/etcdtopo package.
// Takes two ports.
GoVtEtcdtopoPort = GoVtZktopoPort + 3
// GoVtTopoConsultopoPort is used by the go/vt/topo/consultopo package.
// Takes five ports.
GoVtTopoConsultopoPort = GoVtEtcdtopoPort + 2
)
//
// Zookeeper server ID definitions. Unit tests may run at the
// same time, so they can't use the same Zookeeper server IDs.
//
var (
// GoVtTopoZk2topoZkID is used by the go/vt/topo/zk2topo package.
GoVtTopoZk2topoZkID = 1
// GoVtTabletserverCustomruleZkcustomruleZkID is used by the
// go/vt/tabletserver/customrule/zkcustomrule package.
GoVtTabletserverCustomruleZkcustomruleZkID = 2
// GoVtZktopoZkID is used by the go/vt/zktopo package.
GoVtZktopoZkID = 3
)
func getPortStart() int {
env := os.Getenv("VTPORTSTART")
if env == "" {
env = "6700"
}
portStart, err := strconv.Atoi(env)
if err != nil {
panic(fmt.Errorf("cannot parse VTPORTSTART: %v", err))
}
return portStart
}