/**
* {@inheritdoc}
*/
public function sendBinary(ReadableStream $stream, int $priority = 0) : Awaitable
{
return $this->writer->execute(function () use($stream) {
$type = Frame::BINARY;
$reserved = Frame::RESERVED1;
$context = $this->deflate->getCompressionContext();
$len = 0;
try {
$chunk = (yield $stream->readBuffer(4092));
while (null !== ($next = (yield $stream->readBuffer(4092)))) {
$chunk = \deflate_add($context, $chunk, \ZLIB_SYNC_FLUSH);
$len += (yield $this->writeFrame(new Frame($type, $chunk, false, $reserved)));
$chunk = $next;
$type = Frame::CONTINUATION;
$reserved = 0;
}
if ($chunk !== null) {
$chunk = \substr(\deflate_add($context, $chunk, $this->deflate->getCompressionFlushMode()), 0, -4);
$len += (yield $this->writeFrame(new Frame($type, $chunk, true, $reserved)));
}
return $len;
} finally {
$stream->close();
}
}, $priority);
}
/**
* Read next chunk from temp file.
*
* Fall back to reading from buffered source stream if contents of the temp file have been read.
*/
protected function readNextChunk() : \Generator
{
$chunk = (yield $this->stream->readBuffer($this->bufferSize));
if ($chunk === null) {
$chunk = (yield $this->source->readBuffer($this->bufferSize));
if ($chunk === null) {
$this->body->computeSize();
$this->source->close();
} else {
$this->body->incrementOffset((yield $this->stream->write($chunk)));
}
$chunk = (yield $this->stream->readBuffer($this->bufferSize));
}
return $chunk;
}
/**
* {@inheritdoc}
*/
public function getReadableStream() : Awaitable
{
if ($this->temp) {
$this->temp->rewind();
return new Success(new BufferedBodyStream($this->temp, $this->stream, $this->bufferSize, $this));
}
if ($this->size !== null) {
return new Success(new ReadableMemoryStream($this->buffer));
}
return new Coroutine(function () {
$buffer = (yield $this->stream->readBuffer($this->bufferSize));
$len = \strlen($buffer);
if ($len < $this->bufferSize) {
$this->buffer = $buffer;
$this->size = $len;
return new ReadableMemoryStream($buffer);
}
$this->temp = (yield LoopConfig::currentFilesystem()->tempStream());
$this->offset += (yield $this->temp->write($buffer));
return new BufferedBodyStream($this->temp, $this->stream, $this->bufferSize, $this);
});
}
/**
* Stream a binary WebSocket message.
*
* @param ReadableStream $stream
* @param int $priority
* @return int Number of transmitted bytes.
*
* @throws \InvalidArgumentException When the text is not UTF-8 encoded.
*/
public function sendBinary(ReadableStream $stream, int $priority = 0) : Awaitable
{
return $this->writer->execute(function () use($stream) {
$type = Frame::BINARY;
$len = 0;
try {
$chunk = (yield $stream->readBuffer(4092));
while (null !== ($next = (yield $stream->readBuffer(4092)))) {
$len += (yield $this->writeFrame(new Frame($type, $chunk, false)));
$chunk = $next;
$type = Frame::CONTINUATION;
}
if ($chunk !== null) {
$len += (yield $this->writeFrame(new Frame($type, $chunk)));
}
return $len;
} finally {
$stream->close();
}
}, $priority);
}
