优化body读取的逻辑, 0byte的body将会自动跳过读取

internal/pool.go

@@ -294,7 +294,6 @@ func (pool *Pool) Invoke(v interface{}) {
 		return
 	}
 	req.SetHeaders(pool.Headers)
-
 	start := time.Now()
 	resp, reqerr := pool.client.Do(pool.ctx, req)
 	if pool.ClientType == ihttp.FAST {

pkg/baseline.go

@@ -33,12 +33,16 @@ func NewBaseline(u, host string, resp *ihttp.Response) *Baseline {
 	copy(bl.Header, header)
 	bl.HeaderLength = len(bl.Header)
 
+	if i := resp.ContentLength(); i != 0 {
 		body := resp.Body()
 		bl.Body = make([]byte, len(body))
 		copy(bl.Body, body)
-	bl.BodyLength = resp.ContentLength()
-	if bl.BodyLength == -1 {
+
+		if i == -1 {
 			bl.BodyLength = len(bl.Body)
+		} else {
+			bl.BodyLength = i
+		}
 	}
 
 	if t, ok := ContentTypeMap[resp.ContentType()]; ok {