/**
* Write a frame to this channel synchronously.
*
* @param OutgoingFrame $frame The frame to write.
*
* @throws ChannelClosedException The channel has been closed.
*/
public function writeSync(OutgoingFrame $frame)
{
if ($this->stream === null) {
throw ChannelClosedException::channelClosed();
}
$buffer = $this->serializer->serialize($frame);
assert(Debug::dumpOutgoingFrame('#' . (int) $this->stream, $frame));
assert(Debug::dumpOutgoingHex('#' . (int) $this->stream, $buffer));
do {
$bytes = @\fwrite($this->stream, $buffer);
// @codeCoverageIgnoreStart
if ($bytes === false) {
$error = \error_get_last();
throw new ErrorException($error['message'], $error['type'], 1, $error['file'], $error['line']);
}
// @codeCoverageIgnoreEnd
$buffer = \substr($buffer, $bytes);
} while ($buffer);
$this->hasSentFrame = true;
}
/**
* Close this channel.
*
* @recoil-coroutine
*
* Closing a channel indicates that no more values will be written to the
* channel. Once a channel is closed future invocations of write() MUST
* throw a ChannelClosedException.
*/
public function close() : Generator
{
$exception = ChannelClosedException::channelClosed();
foreach ($this->strandQueue as $strand) {
$strand->throw($exception);
}
}