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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STREAM_READER_H_
#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STREAM_READER_H_
#include "content/browser/service_worker/service_worker_url_request_job.h"
#include "content/browser/streams/stream_read_observer.h"
#include "content/browser/streams/stream_register_observer.h"
#include "net/url_request/url_request.h"
namespace net {
class IOBuffer;
}
namespace content {
class ServiceWorkerVersion;
// Reads a stream response for ServiceWorkerURLRequestJob.
// Owned by ServiceWorkerURLRequestJob.
class ServiceWorkerStreamReader : public StreamReadObserver,
public StreamRegisterObserver {
public:
// |streaming_version| is the ServiceWorkerVersion that must be kept alive
// while the response is being read.
ServiceWorkerStreamReader(
ServiceWorkerURLRequestJob* owner,
scoped_refptr<ServiceWorkerVersion> streaming_version);
~ServiceWorkerStreamReader() override;
// Starts reading the stream. owner_->OnResponseStarted will be called when
// the response starts.
void Start(const GURL& stream_url);
// Same as URLRequestJob::ReadRawData. If ERR_IO_PENDING is returned,
// owner_->OnReadRawDataComplete will be called when the read completes.
int ReadRawData(net::IOBuffer* buf, int buf_size);
// StreamObserver override:
void OnDataAvailable(Stream* stream) override;
// StreamRegisterObserver override:
void OnStreamRegistered(Stream* stream) override;
private:
ServiceWorkerURLRequestJob* owner_;
scoped_refptr<Stream> stream_;
GURL waiting_stream_url_;
scoped_refptr<net::IOBuffer> stream_pending_buffer_;
int stream_pending_buffer_size_;
scoped_refptr<ServiceWorkerVersion> streaming_version_;
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STREAM_READER_H_
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