blob: bb8b769e67f6e8dddf6900164c963a70a2059435 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"flag"
"fmt"
"math/rand"
_ "net/http/pprof"
"time"
)
import (
"dubbo.apache.org/dubbo-go/v3/config"
_ "dubbo.apache.org/dubbo-go/v3/imports"
)
import (
_ "github.com/dubbogo/dubbo-go-benchmark/3.0/filters/offline_simulator"
)
const (
defaultTimeoutRatio float64 = 0
defaultTimeoutDuration = "0s"
)
var (
timeoutRatio float64
timeoutDurationStr string
timeoutDuration time.Duration
)
var ErrNShouldGreaterThanZero = fmt.Errorf("n should greater than zero")
func main() {
var (
err error
)
flag.Float64Var(&timeoutRatio, "tr", defaultTimeoutRatio, "The percentage of timeouts. If greater than 0 there will be a timeout for that percentage of requests with a timeout of `timeout`")
flag.StringVar(&timeoutDurationStr, "t", defaultTimeoutDuration, "Duration of timeout. It should be a string representing a time, like \"1h\", \"30m\", etc")
flag.Parse()
if timeoutRatio > 1 || timeoutRatio < 0 {
panic(fmt.Errorf("Timeout Ratio should be a decimal between 0 and 1 "))
}
timeoutDuration, err = time.ParseDuration(timeoutDurationStr)
if err != nil {
panic(fmt.Errorf("timeout duration should be a string representing a time, like \"1h\", \"30m\", etc"))
}
config.SetProviderService(&Provider{})
if err = config.Load(); err != nil {
panic(err)
}
select {}
}
type Provider struct{}
func (p *Provider) Fibonacci(n int64) (int64, error) {
if rand.Float64() < timeoutRatio {
time.Sleep(timeoutDuration)
}
ret, err := fibonacci(n)
if err != nil {
return 0, err
}
return ret, nil
}
func fibonacci(n int64) (int64, error) {
if n < 0 {
return 0, ErrNShouldGreaterThanZero
}
if n < 2 {
return n, nil
}
f1, err := fibonacci(n - 1)
if err != nil {
return 0, err
}
f2, err := fibonacci(n - 2)
if err != nil {
return 0, err
}
return f1 + f2, nil
}