/
cli.go
278 lines (235 loc) · 6.15 KB
/
cli.go
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package main
import (
"encoding/json"
"flag"
"fmt"
"io"
"log"
"net/http"
"net/url"
"sync"
"time"
"github.com/isucon/isucon6-qualify/bench/checker"
"github.com/isucon/isucon6-qualify/bench/score"
)
// Exit codes are int values that represent an exit code for a particular error.
const (
ExitCodeOK int = 0
ExitCodeError int = 1 + iota
InitializeTimeout = 5 * time.Second
BenchmarkTimeout = 60 * time.Second
WaitAfterTimeout = 15 * time.Second
PostsPerPage = 10
)
// CLI is the command line object
type CLI struct {
// outStream and errStream are the stdout and stderr
// to write message from the CLI.
outStream, errStream io.Writer
}
type user struct {
Name string
Password string
}
type scenarioFn func(*checker.Session, *benchdata)
type scenarioRunner struct {
scenarios []scenarioFn
para int
bdata *benchdata
done chan struct{}
}
func newScenarioRunner(bd *benchdata, para int, funcs []scenarioFn) *scenarioRunner {
return &scenarioRunner{
bdata: bd,
scenarios: funcs,
done: make(chan struct{}, para),
}
}
func (sr *scenarioRunner) start(ch chan *scenarioRunner) {
para := cap(sr.done)
for i := 0; i < para; i++ {
ch <- sr
}
for range sr.done {
ch <- sr
}
}
func (sr *scenarioRunner) run() {
for _, fn := range sr.scenarios {
fn(checker.NewSession(), sr.bdata)
}
sr.done <- struct{}{}
}
type scenarioManager struct {
runners []*scenarioRunner
bdata *benchdata
next chan *scenarioRunner
}
func newScenarioManager(bdata *benchdata) *scenarioManager {
return &scenarioManager{
bdata: bdata,
next: make(chan *scenarioRunner),
}
}
func (sm *scenarioManager) register(para int, funcs []scenarioFn) {
sr := newScenarioRunner(sm.bdata, para, funcs)
sm.runners = append(sm.runners, sr)
}
func (sm *scenarioManager) start() {
for _, sr := range sm.runners {
go sr.start(sm.next)
}
}
// Run invokes the CLI with the given arguments.
func (cli *CLI) Run(args []string) int {
var (
target string
datadir string
version bool
debug bool
)
// Define option flag parse
flags := flag.NewFlagSet(Name, flag.ContinueOnError)
flags.SetOutput(cli.errStream)
flags.StringVar(&target, "target", "http://localhost", "")
flags.StringVar(&datadir, "datadir", "data", "userdata directory")
flags.BoolVar(&debug, "debug", false, "Debug mode")
flags.BoolVar(&version, "version", false, "Print version information and quit.")
// Parse commandline flag
if err := flags.Parse(args[1:]); err != nil {
return ExitCodeError
}
// Show version
if version {
fmt.Fprintf(cli.errStream, "%s version %s\n", Name, Version)
return ExitCodeOK
}
targetHost, terr := checker.SetTargetHost(target)
if terr != nil {
outputNeedToContactUs(terr.Error())
return ExitCodeError
}
initialize := make(chan bool)
setupInitialize(targetHost, initialize)
bdata, err := initializeBenchdata(datadir)
if err != nil {
outputNeedToContactUs(err.Error())
return ExitCodeError
}
initReq := <-initialize
if !initReq {
fmt.Println(outputResultJson(false, []string{"初期化リクエストに失敗しました"}))
return ExitCodeError
}
ok := start(bdata)
msgs := []string{}
if !debug {
msgs = score.GetFailErrorsStringSlice()
} else {
msgs = score.GetFailRawErrorsStringSlice()
}
fmt.Println(outputResultJson(ok, msgs))
if !ok {
return ExitCodeError
}
return ExitCodeOK
}
func start(bdata *benchdata) bool {
log.Println("start pre-checking")
startAt := time.Now()
// 最初にDOMチェックなどをやってしまい、通らなければさっさと失敗させる
initialScenarios := []scenarioFn{
cannotLoginNonexistentUserScenario,
cannotLoginWrongPasswordScenario,
loginScenario,
ngwordScenario,
loadIndexWithStarScenario,
keywordScenario,
postKeywordScenario,
updateKeywordScenario,
}
var wg sync.WaitGroup
wg.Add(len(initialScenarios))
for _, fn := range initialScenarios {
go func(fn scenarioFn) {
defer wg.Done()
fn(checker.NewSession(), bdata)
}(fn)
}
wg.Wait()
restDur := startAt.Add(BenchmarkTimeout).Sub(time.Now())
if restDur <= 0 {
score.GetInstance().SetFails(0)
score.GetFailErrorsInstance().Append(fmt.Errorf("初期チェックがタイムアウトしました"))
}
if (score.GetInstance().GetFails() - score.GetInstance().GetTimeouts()) > 0 {
return false
}
log.Println("pre-check finished and start main benchmarking")
// シナリオ登録
sm := newScenarioManager(bdata)
sm.register(1, []scenarioFn{indexMoreAndMoreScenario})
sm.register(2, []scenarioFn{loadIndexScenario})
sm.register(1, []scenarioFn{
loginScenario,
cannotLoginNonexistentUserScenario,
cannotLoginWrongPasswordScenario,
})
sm.register(2, []scenarioFn{loadIndexWithStarScenario})
sm.register(1, []scenarioFn{ngwordScenario})
sm.register(2, []scenarioFn{keywordScenario})
sm.register(3, []scenarioFn{postKeywordScenario})
sm.register(1, []scenarioFn{updateKeywordScenario})
// ベンチ開始
sm.start()
timeoutCh := time.After(restDur)
L:
for {
select {
case <-timeoutCh:
break L
case sr := <-sm.next:
go sr.run()
}
}
log.Println("benchmarking finished")
time.Sleep(WaitAfterTimeout)
return true
}
func outputResultJson(pass bool, messages []string) string {
output := score.Output{
Pass: pass,
Score: score.GetInstance().GetScore(),
Suceess: score.GetInstance().GetSucesses(),
Fail: score.GetInstance().GetFails(),
Messages: messages,
}
b, _ := json.Marshal(output)
return string(b)
}
// 主催者に連絡して欲しいエラー
func outputNeedToContactUs(message string) {
fmt.Println(outputResultJson(false, []string{"!!!主催者に連絡してください!!!", message}))
}
func setupInitialize(targetHost string, initialize chan bool) {
go func(targetHost string) {
client := &http.Client{
Timeout: InitializeTimeout,
}
parsedURL, _ := url.Parse("/initialize")
parsedURL.Scheme = "http"
parsedURL.Host = targetHost
req, err := http.NewRequest("GET", parsedURL.String(), nil)
if err != nil {
return
}
req.Header.Set("User-Agent", checker.UserAgent)
res, err := client.Do(req)
if err != nil {
initialize <- false
return
}
defer res.Body.Close()
initialize <- true
}(targetHost)
}