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