/**
* {@inheritdoc}
*/
public function discard() : Awaitable
{
return new Coroutine(function () {
$len = 0;
try {
while (null !== ($chunk = (yield $this->stream->read()))) {
$len += \strlen($chunk);
}
return $len;
} finally {
$this->stream->close();
}
});
}
/**
* 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;
}
protected function streamReader(ReadableStream $stream) : \Generator
{
$contents = '';
try {
$channel = $stream->channel(8192, $this->length);
while (null !== ($chunk = (yield $channel->receive()))) {
$contents .= $chunk;
}
} finally {
if ($this->closeSource) {
$stream->close();
}
}
return $contents;
}
/**
* Create the input stream being used to read decoded body data from the remote peer.
*/
protected function createInputStream() : EntityStream
{
if ($this->chunked) {
$stream = new ChunkDecodedStream($this->stream);
} elseif ($this->length > 0) {
$stream = new LimitStream($this->stream, $this->length);
} elseif ($this->closeSupported) {
$stream = $this->stream;
} else {
if ($this->cascadeClose) {
$this->stream->close();
}
return new EntityStream(new ReadableMemoryStream(), true, $this->expectContinue);
}
return new EntityStream($stream, $this->cascadeClose, $this->expectContinue);
}
/**
* Create the input stream being used to read decoded body data from the remote peer.
*
* @return ReadableStream
*/
protected function createInputStream() : \Generator
{
if ($this->expectContinue) {
(yield $this->expectContinue->write("HTTP/1.1 100 Continue\r\n"));
}
if ($this->chunked) {
$stream = new ChunkDecodedStream($this->stream, $this->cascadeClose);
} elseif ($this->length > 0) {
$stream = new LimitStream($this->stream, $this->length, $this->cascadeClose);
} else {
if ($this->cascadeClose) {
$this->stream->close();
}
return new ReadableMemoryStream();
}
switch ($this->compression) {
case self::COMPRESSION_GZIP:
return new ReadableInflateStream($stream, \ZLIB_ENCODING_GZIP);
case self::COMPRESSION_DEFLATE:
return new ReadableInflateStream($stream, \ZLIB_ENCODING_DEFLATE);
}
return $stream;
}
/**
* 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);
}
/**
* {@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);
}
