connrtmp: use contexts

internal/connrtmp/conn.go

@@ -1,6 +1,7 @@
 package connrtmp
 
 import (
+	"context"
 	"fmt"
 	"io"
 	"net"
@@ -159,36 +160,22 @@ func (c *Conn) run() {
 		defer onConnectCmd.Close()
 	}
 
-	c.ringBuffer = ringbuffer.New(uint64(c.readBufferCount))
-
+	ctx, cancel := context.WithCancel(context.Background())
 	connErr := make(chan error)
 	go func() {
-		connErr <- func() error {
-			c.conn.NetConn().SetReadDeadline(time.Now().Add(c.readTimeout))
-			c.conn.NetConn().SetWriteDeadline(time.Now().Add(c.writeTimeout))
-			err := c.conn.ServerHandshake()
-			if err != nil {
-				return err
-			}
-
-			if c.conn.IsPublishing() {
-				return c.runPublish()
-			}
-			return c.runRead()
-		}()
+		connErr <- c.runInner(ctx)
 	}()
 
 	select {
 	case err := <-connErr:
+		cancel()
+
 		if err != io.EOF {
 			c.log(logger.Info, "ERR: %s", err)
 		}
 
-		c.conn.NetConn().Close()
-
 	case <-c.terminate:
-		c.ringBuffer.Close()
-		c.conn.NetConn().Close()
+		cancel()
 		<-connErr
 	}
 
@@ -202,7 +189,26 @@ func (c *Conn) run() {
 	<-c.parentTerminate
 }
 
-func (c *Conn) runRead() error {
+func (c *Conn) runInner(ctx context.Context) error {
+	go func() {
+		<-ctx.Done()
+		c.conn.NetConn().Close()
+	}()
+
+	c.conn.NetConn().SetReadDeadline(time.Now().Add(c.readTimeout))
+	c.conn.NetConn().SetWriteDeadline(time.Now().Add(c.writeTimeout))
+	err := c.conn.ServerHandshake()
+	if err != nil {
+		return err
+	}
+
+	if c.conn.IsPublishing() {
+		return c.runPublish(ctx)
+	}
+	return c.runRead(ctx)
+}
+
+func (c *Conn) runRead(ctx context.Context) error {
 	pathName, query := pathNameAndQuery(c.conn.URL())
 
 	sres := make(chan readpublisher.SetupPlayRes)
@@ -259,6 +265,13 @@ func (c *Conn) runRead() error {
 	c.conn.NetConn().SetWriteDeadline(time.Now().Add(c.writeTimeout))
 	c.conn.WriteMetadata(videoTrack, audioTrack)
 
+	c.ringBuffer = ringbuffer.New(uint64(c.readBufferCount))
+
+	go func() {
+		<-ctx.Done()
+		c.ringBuffer.Close()
+	}()
+
 	pres := make(chan readpublisher.PlayRes)
 	c.path.OnReadPublisherPlay(readpublisher.PlayReq{c, pres}) //nolint:govet
 	<-pres
@@ -348,7 +361,7 @@ func (c *Conn) runRead() error {
 	}
 }
 
-func (c *Conn) runPublish() error {
+func (c *Conn) runPublish(ctx context.Context) error {
 	c.conn.NetConn().SetReadDeadline(time.Now().Add(c.readTimeout))
 	videoTrack, audioTrack, err := c.conn.ReadMetadata()
 	if err != nil {