doing

plugSrc/kafka/build/util.go

@@ -0,0 +1,94 @@
+package build
+
+import (
+	"encoding/binary"
+	"io"
+	"time"
+)
+
+func GetNowStr(isClient bool) string {
+	var msg string
+	layout := "01/02 15:04:05.000000"
+	msg += time.Now().Format(layout)
+	if isClient {
+		msg += "| cli -> ser |"
+	}else{
+		msg += "| ser -> cli |"
+	}
+	return msg
+}
+
+func IsEof(r io.Reader) bool {
+	buf := make([]byte, 1)
+	_, err := r.Read(buf)
+	if err != nil {
+		return true
+	}
+	return false
+}
+
+func ReadOnce() {
+
+}
+
+func ReadInt16(r io.Reader) (n int16) {
+	binary.Read(r, binary.BigEndian, &n)
+	return
+}
+
+func ReadInt32(r io.Reader) (n int32) {
+	binary.Read(r, binary.BigEndian, &n)
+	return
+}
+
+func ReadInt64(r io.Reader) (n int64) {
+	binary.Read(r, binary.BigEndian, &n)
+	return
+}
+
+func ReadString(r io.Reader) (string, int) {
+
+	l := int(ReadInt16(r))
+
+	//-1 => null
+	if l == -1 {
+		return " ",1
+	}
+
+	str := make([]byte, l)
+	if _, err := io.ReadFull(r, str); err != nil {
+		panic(err)
+	}
+
+	return string(str), l
+}
+//
+//func TryReadInt16(r io.Reader) (n int16, err error) {
+//
+//	if err := binary.Read(r, binary.BigEndian, &n); err != nil {
+//		if n == -1 {
+//			return 1,nil
+//		}
+//		panic(err)
+//	}
+//}
+
+func ReadBytes(r io.Reader) []byte {
+
+	l := int(ReadInt32(r))
+
+	var result []byte
+	var b = make([]byte, l)
+	for i:=0;i<l;i++ {
+
+		_, err := r.Read(b)
+
+		if err != nil {
+			panic(err)
+		}
+
+		result = append(result, b[0])
+	}
+
+	return result
+}