"LogRoutine"의 두 판 사이의 차이

2024년 8월 12일 (월) 23:49 기준 최신판

개요[ | ]

LogRoutine

package main

import (
	"fmt"
	"os"
	"strconv"
	"sync"
	"time"

	"github.com/google/uuid"
)

func main() {
	numLogs := 10
	if envNumLogs, exists := os.LookupEnv("NUM_LOGS"); exists {
		if parsedNumLogs, err := strconv.Atoi(envNumLogs); err == nil {
			numLogs = parsedNumLogs
		} else {
			fmt.Printf("Invalid NUM_LOGS value, using default: %d\n", numLogs)
		}
	}
	prefix := fmt.Sprintf("LogRoutine %s", uuid.New().String()[:8])

	var wg sync.WaitGroup
	startTime := time.Now()
	for i := 1; i <= numLogs; i++ {
		wg.Add(1)
		go func(index int) {
			defer wg.Done()
			fmt.Println(prefix, index)
		}(i)
	}
	wg.Wait()
	elapsedTime := time.Since(startTime)

	fmt.Println("LogRoutine elapsed", elapsedTime)
}

@@ 1번째 줄: / 1번째 줄: @@
 ==개요==
-;LogGen
+;LogRoutine
 <syntaxhighlight lang='go'>
@@ 14번째 줄: / 14번째 줄: @@
 	"github.com/google/uuid"
 )
-func generateLog(wg *sync.WaitGroup, batchID string, logNumber int) {
-	defer wg.Done()
-	fmt.Printf("LogGen %s %d\n", batchID, logNumber)
-}
 func main() {
-	startTime := time.Now()
-	var wg sync.WaitGroup
-	// Set default number of logs
 	numLogs := 10
-	// Check if NUM_LOGS environment variable is set and parse it
 	if envNumLogs, exists := os.LookupEnv("NUM_LOGS"); exists {
 		if parsedNumLogs, err := strconv.Atoi(envNumLogs); err == nil {
@@ 35번째 줄: / 24번째 줄: @@
 		}
 	}
+	prefix := fmt.Sprintf("LogRoutine %s", uuid.New().String()[:8])
-	batchID := uuid.New().String()[:8]
+	var wg sync.WaitGroup
+	startTime := time.Now()
-	fmt.Printf("LogGen start: %s\n", startTime.Format(time.RFC3339))
 	for i := 1; i <= numLogs; i++ {
 		wg.Add(1)
-		go generateLog(&wg, batchID, i)
+		go func(index int) {
+			defer wg.Done()
+			fmt.Println(prefix, index)
+		}(i)
 	}
-	// Wait for all log generation goroutines to finish
 	wg.Wait()
-	// Calculate the elapsed time
 	elapsedTime := time.Since(startTime)
-	// Print the end time and the elapsed time
+	fmt.Println("LogRoutine elapsed", elapsedTime)
-	fmt.Printf("LogGen end: %s\n", time.Now().Format(time.RFC3339))
-	fmt.Printf("Elapsed Time: %s\n", elapsedTime)
 }
 </syntaxhighlight>
 [[분류: Go]]