init

utils/file.go

@@ -0,0 +1,40 @@
+package utils
+
+import (
+	"fmt"
+	"io"
+	"os"
+)
+
+func ReadFile(path string) (string, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return "", nil
+	}
+	defer file.Close()
+	d, _ := io.ReadAll(file)
+	return string(d), nil
+}
+
+func WriteFile(path string, content string) error {
+	file, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	file.WriteString(content)
+	return nil
+}
+
+func FormatBytes(bytes uint64) string {
+	const unit = 1024
+	if bytes < unit {
+		return fmt.Sprintf("%d B", bytes)
+	}
+	div, exp := uint64(unit), 0
+	for n := bytes / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	return fmt.Sprintf("%.1f %ciB", float64(bytes)/float64(div), "KMGTPE"[exp])
+}

utils/goroutine_pool.go

@@ -0,0 +1,27 @@
+package utils
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/panjf2000/ants"
+)
+
+type PoolInfo struct {
+	Pool          *ants.Pool
+	MaxWorkers    int
+	TaskWaitGroup sync.WaitGroup
+}
+
+func (pool *PoolInfo) NewPool(num int) {
+	p, err := ants.NewPool(num)
+	if err != nil {
+		fmt.Println("Create Pool Error:", err)
+		return
+	}
+	pool.Pool = p
+	pool.MaxWorkers = num
+}
+func (pool *PoolInfo) AddTask(fun func()) {
+	pool.Pool.Submit(fun)
+}