Make for Go idiomatic.

rtmp/rtmp.go

@@ -447,9 +447,8 @@ func C_WriteN(r *C_RTMP, buf []byte) (ok bool) {
 		n, err := C_RTMPSockBuf_Send(&r.m_sb, buf)
 		if n < 0 {
 			if debugMode {
-				log.Println("C_WriteN, RTMP send error: " + err.Error())
+				log.Printf("C_WriteN, RTMP send error: %v\n", err)
 			}
-
 			C_RTMP_Close(r)
 			return false
 		}
@@ -1476,7 +1475,10 @@ func C_CloseInternal(r *C_RTMP, reconnect bool) {
 			}
 			C_SendDeleteStream(r, float64(i))
 		}
-		C_RTMPSockBuf_Close(&r.m_sb)
+		err := C_RTMPSockBuf_Close(&r.m_sb)
+		if err != nil && debugMode {
+			log.Printf("C_RTMPSockBuf_Close error: %v\n", err)
+		}
 	}
 
 	r.m_stream_id = -1

rtmp/socket.go

@@ -35,8 +35,8 @@ package rtmp
 
 import (
 	"errors"
-	"fmt"
 	"net"
+	"strconv"
 	"time"
 )
 
@@ -46,9 +46,7 @@ func C_RTMP_Connect(r *C_RTMP, cp *C_RTMPPacket) error {
 	if r.Link.host == "" {
 		return errors.New("Empty host")
 	}
-
-	hostPort := fmt.Sprintf("%s:%d", r.Link.host, r.Link.port)
-	addr, err := net.ResolveTCPAddr("tcp4", hostPort)
+	addr, err := net.ResolveTCPAddr("tcp4", r.Link.host+":"+strconv.Itoa(int(r.Link.port)))
 	if err != nil {
 		return err
 	}
@@ -56,13 +54,11 @@ func C_RTMP_Connect(r *C_RTMP, cp *C_RTMPPacket) error {
 	if err != nil {
 		return err
 	}
-
 	r.m_sb.timeout = r.Link.timeout
-	if C_RTMP_Connect1(r, cp) {
-		return nil
-	} else {
+	if !C_RTMP_Connect1(r, cp) {
 		return errors.New("RTMP connection failed")
 	}
+	return nil
 }
 
 // int SocksNegotiate(RTMP* r);
@@ -76,15 +72,12 @@ func C_RTMPSockBuf_Fill(sb *C_RTMPSockBuf) (int, error) {
 		sb.sb_start = 0
 	}
 	err := sb.conn.SetReadDeadline(time.Now().Add(time.Second * time.Duration(sb.timeout)))
-	if err != nil {
-		return -1, err
-	}
-	n, err := sb.conn.Read(sb.sb_buf[sb.sb_start+sb.sb_size:])
 	if err != nil {
 		return 0, err
 	}
+	n, err := sb.conn.Read(sb.sb_buf[sb.sb_start+sb.sb_size:])
 	sb.sb_size += n
-	return n, nil
+	return n, err
 }
 
 // int RTMPSockBuf_Send(RTMPSockBuf* sb, const char* buf, int len);
@@ -93,25 +86,17 @@ func C_RTMPSockBuf_Fill(sb *C_RTMPSockBuf) (int, error) {
 func C_RTMPSockBuf_Send(sb *C_RTMPSockBuf, buf []byte) (int, error) {
 	err := sb.conn.SetWriteDeadline(time.Now().Add(time.Second * time.Duration(sb.timeout)))
 	if err != nil {
-		return -1, err
+		return 0, err
 	}
-	n, err := sb.conn.Write(buf)
-	if err != nil {
-		return -1, err
-	}
-	return n, nil
+	return sb.conn.Write(buf)
 }
 
 // int
 // RTMPSockBuf_Close(RTMPSockBuf *sb)
 // rtmp.c +4369
 func C_RTMPSockBuf_Close(sb *C_RTMPSockBuf) error {
-	if sb.conn != nil {
-		err := sb.conn.Close()
-		sb.conn = nil
-		if err != nil {
-			return err
-		}
-	}
+	if sb.conn == nil {
 		return nil
+	}
+	return sb.conn.Close()
 }