v2fly/infra/conf/router_strategy.go

86 lines
2.3 KiB
Go

package conf
import (
"time"
"github.com/golang/protobuf/proto"
"github.com/v2fly/v2ray-core/v4/app/router"
)
const (
strategyRandom string = "random"
strategyLeastLoad string = "leastload"
strategyLeastPing string = "leastping"
)
var (
strategyConfigLoader = NewJSONConfigLoader(ConfigCreatorCache{
strategyRandom: func() interface{} { return new(strategyEmptyConfig) },
strategyLeastLoad: func() interface{} { return new(strategyLeastLoadConfig) },
}, "type", "settings")
)
type strategyEmptyConfig struct {
}
func (v *strategyEmptyConfig) Build() (proto.Message, error) {
return nil, nil
}
type strategyLeastLoadConfig struct {
// note the time values of the HealthCheck holds is not
// 'time.Duration' but plain number, sice they were parsed
// directly from json
HealthCheck *router.HealthPingSettings `json:"healthCheck,omitempty"`
// weight settings
Costs []*router.StrategyWeight `json:"costs,omitempty"`
// ping rtt baselines (ms)
Baselines []int `json:"baselines,omitempty"`
// expected nodes count to select
Expected int32 `json:"expected,omitempty"`
// max acceptable rtt (ms), filter away high delay nodes. defalut 0
MaxRTT int `json:"maxRTT,omitempty"`
// acceptable failure rate
Tolerance float64 `json:"tolerance,omitempty"`
}
// Build implements Buildable.
func (v *strategyLeastLoadConfig) Build() (proto.Message, error) {
config := &router.StrategyLeastLoadConfig{
HealthCheck: &router.HealthPingConfig{},
}
if v.HealthCheck != nil {
config.HealthCheck = &router.HealthPingConfig{
Destination: v.HealthCheck.Destination,
Connectivity: v.HealthCheck.Connectivity,
Interval: int64(v.HealthCheck.Interval * time.Second),
Timeout: int64(v.HealthCheck.Timeout * time.Second),
SamplingCount: int32(v.HealthCheck.SamplingCount),
}
}
config.Costs = v.Costs
config.Tolerance = float32(v.Tolerance)
if config.Tolerance < 0 {
config.Tolerance = 0
}
if config.Tolerance > 1 {
config.Tolerance = 1
}
config.Expected = v.Expected
if config.Expected < 0 {
config.Expected = 0
}
config.MaxRTT = int64(time.Duration(v.MaxRTT) * time.Millisecond)
if config.MaxRTT < 0 {
config.MaxRTT = 0
}
config.Baselines = make([]int64, 0)
for _, b := range v.Baselines {
if b <= 0 {
continue
}
config.Baselines = append(config.Baselines, int64(time.Duration(b)*time.Millisecond))
}
return config, nil
}