snapshot of https://github.com/pion/webrtc.git (main, 2026-09-15; blobs > 131072B omitted)

datachannel_js_detach.go

@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: 2026 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+//go:build js && wasm
+// +build js,wasm
+
+package webrtc
+
+import (
+	"errors"
+)
+
+type detachedDataChannel struct {
+	dc *DataChannel
+
+	read chan DataChannelMessage
+	done chan struct{}
+}
+
+func newDetachedDataChannel(dc *DataChannel) *detachedDataChannel {
+	read := make(chan DataChannelMessage)
+	done := make(chan struct{})
+
+	// Wire up callbacks
+	dc.OnMessage(func(msg DataChannelMessage) {
+		read <- msg // pion/webrtc/projects/15
+	})
+
+	// pion/webrtc/projects/15
+
+	return &detachedDataChannel{
+		dc:   dc,
+		read: read,
+		done: done,
+	}
+}
+
+func (c *detachedDataChannel) Read(p []byte) (int, error) {
+	n, _, err := c.ReadDataChannel(p)
+	return n, err
+}
+
+func (c *detachedDataChannel) ReadDataChannel(p []byte) (int, bool, error) {
+	select {
+	case <-c.done:
+		return 0, false, errors.New("Reader closed")
+	case msg := <-c.read:
+		n := copy(p, msg.Data)
+		if n < len(msg.Data) {
+			return n, msg.IsString, errors.New("Read buffer to small")
+		}
+		return n, msg.IsString, nil
+	}
+}
+
+func (c *detachedDataChannel) Write(p []byte) (n int, err error) {
+	return c.WriteDataChannel(p, false)
+}
+
+func (c *detachedDataChannel) WriteDataChannel(p []byte, isString bool) (n int, err error) {
+	if isString {
+		err = c.dc.SendText(string(p))
+		return len(p), err
+	}
+
+	err = c.dc.Send(p)
+
+	return len(p), err
+}
+
+func (c *detachedDataChannel) Close() error {
+	close(c.done)
+
+	return c.dc.Close()
+}