Merge pull request #37 from kuzxnia/randfix

Randfix
kuzxnia · Jul 22, 2024 · 78c9619 · 78c9619
2 parents 7bbfb33 + ae629de
commit 78c9619
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diff --git a/docs/getting_started/quick-start.md b/docs/getting_started/quick-start.md
@@ -8,7 +8,7 @@ loadbot start-agent -f config_file.json
 
 2. Start and watch the workload using the loadbot client:
 ```bash
-loadbot start-agent --progress
+loadbot start --progress
 Job "My first job" |██████████████████████████████████████████████████████████████████| 30/30S 50RPS 1509REQ
 ```
 

diff --git a/lbot/schema/generator.go b/lbot/schema/generator.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"math/rand"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/go-faker/faker/v4"
@@ -119,15 +120,20 @@ const (
 	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
 )
 
-var src = rand.NewSource(time.Now().UnixNano())
+var (
+	src = rand.NewSource(time.Now().UnixNano())
+	mu  sync.Mutex
+)
 
 func randStringBytes(n int) string {
 	sb := strings.Builder{}
 	sb.Grow(n)
 	// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
 	for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
 		if remain == 0 {
+      mu.Lock()
 			cache, remain = src.Int63(), letterIdxMax
+      mu.Unlock()
 		}
 		if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
 			sb.WriteByte(letterBytes[idx])