// placeVotes votes for votingDuration seconds.
func placeVotes(join chan int) {
volt, err := voltdb.NewConnection("username", "", "localhost:21212")
defer volt.Close()
if err != nil {
log.Fatalf("Connection error db. %v\n", err)
}
timeout := time.After(votingDuration)
placedVotes := 0
for {
select {
case <-timeout:
join <- placedVotes
return
default:
// construct a phoneNumber with a valid area code.
var phoneNumber int64 = (5080000000 + int64(rand.Int31()))
// pick a contestant at random (contestant ids are 1-based)
var contestant = (rand.Int() % ttlContestants) + 1
rsp, err := volt.Call("Vote", phoneNumber, contestant, 100)
if err != nil {
log.Fatalf("Error voting. %v\n", err)
}
if rsp.Status() == voltdb.SUCCESS {
placedVotes++
} else {
fmt.Printf("Vote failed %#v\n", rsp)
}
}
}
}
func connectOrDie() *voltdb.Conn {
volt, err := voltdb.NewConnection("username", "", "localhost:21212")
if err != nil {
log.Fatalf("Connection error %v\n", err)
}
if !volt.TestConnection() {
log.Fatalf("Connection error: failed to ping VoltDB database.")
}
return volt
}
// Connect to the Volt Database
// Address should be sent in the form "address:port"
func Connect(addr string) *Volt {
volt, err := voltdb.NewConnection("", "", addr)
if err != nil {
log.Fatalf("Connection error %v\n", err)
}
if !volt.TestConnection() {
log.Fatalf("Connection error: failed to ping VoltDB database.")
}
return &Volt{
volt,
}
}
func main() {
volt, _ := voltdb.NewConnection("username", "", "localhost:21212")
response, _ := volt.Call("@AdHoc", "select * from store order by Key limit 3;")
type Row struct {
Key string
Value string
}
var row Row
for response.Table(0).HasNext() {
response.Table(0).Next(&row)
fmt.Printf("Row: %v %v\n", row.Key, row.Value)
}
}