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// +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()
}
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