func NewStartRequest(path string, dir string, args []string, allocated resource.ComputeResource, envs []string, host string, port int32) *cmd.ControlMessage {
request := &cmd.ControlMessage{
Type: cmd.ControlMessage_StartRequest.Enum(),
StartRequest: &cmd.StartRequest{
Path: proto.String(path),
Args: args,
Dir: proto.String(dir),
Resource: &cmd.ComputeResource{
CpuCount: proto.Int32(int32(allocated.CPUCount)),
CpuLevel: proto.Int32(int32(allocated.CPULevel)),
Memory: proto.Int32(int32(allocated.MemoryMB)),
},
Envs: envs,
Host: proto.String(host),
Port: proto.Int32(port),
HashCode: proto.Uint32(0),
},
}
// generate a unique hash code for the request
data, err := proto.Marshal(request)
if err != nil {
log.Fatalf("marshaling start request error: %v", err)
return nil
}
request.StartRequest.HashCode = proto.Uint32(uint32(util.Hash(data)))
return request
}
func HashByKey(input reflect.Value, shard int) int {
v := guessKey(input)
dt := v.Type()
if dt.Kind() == reflect.Interface {
dt = reflect.TypeOf(v.Interface())
v = reflect.ValueOf(v.Interface())
}
var x int
switch dt.Kind() {
case reflect.Int:
x = int(v.Int()) % shard
case reflect.String:
x = int(util.Hash([]byte(v.String()))) % shard
case reflect.Slice:
x = int(util.Hash(v.Bytes())) % shard
default:
println("unexpected key to hash:", v.Kind().String())
}
return x
}
func HashByKey(input reflect.Value, shard int) int {
v := guessKey(input)
dt := v.Type()
if dt.Kind() == reflect.Interface {
dt = reflect.TypeOf(v.Interface())
v = reflect.ValueOf(v.Interface())
}
var x int
switch dt.Kind() {
case reflect.Int, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64,
reflect.Uint8:
x = int(v.Int()) % shard
case reflect.String:
x = int(util.Hash([]byte(v.String()))) % shard
case reflect.Slice:
x = int(util.Hash(v.Bytes())) % shard
default:
log.Fatalf("unexpected key to hash %s: %v", v.Kind().String(), v)
}
return x
}