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// Copyright (c) 2011 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.
// This class simulates a slow download. This used in a UI test to test the
// download manager. Requests to |kUnknownSizeUrl| and |kKnownSizeUrl| start
// downloads that pause after the first N bytes, to be completed by sending a
// request to |kFinishDownloadUrl|.
#ifndef CONTENT_BROWSER_NET_URL_REQUEST_SLOW_DOWNLOAD_JOB_H_
#define CONTENT_BROWSER_NET_URL_REQUEST_SLOW_DOWNLOAD_JOB_H_
#pragma once
#include <set>
#include <string>
#include "base/lazy_instance.h"
#include "base/task.h"
#include "content/common/content_export.h"
#include "net/url_request/url_request_job.h"
class URLRequestSlowDownloadJob : public net::URLRequestJob {
public:
// Test URLs.
CONTENT_EXPORT static const char kUnknownSizeUrl[];
CONTENT_EXPORT static const char kKnownSizeUrl[];
CONTENT_EXPORT static const char kFinishDownloadUrl[];
// Download sizes.
CONTENT_EXPORT static const int kFirstDownloadSize;
CONTENT_EXPORT static const int kSecondDownloadSize;
// Timer callback, used to check to see if we should finish our download and
// send the second chunk.
void CheckDoneStatus();
// net::URLRequestJob methods
virtual void Start();
virtual bool GetMimeType(std::string* mime_type) const;
virtual void GetResponseInfo(net::HttpResponseInfo* info);
virtual bool ReadRawData(net::IOBuffer* buf, int buf_size, int *bytes_read);
static net::URLRequestJob* Factory(net::URLRequest* request,
const std::string& scheme);
// Returns the current number of URLRequestSlowDownloadJobs that have
// not yet completed.
CONTENT_EXPORT static size_t NumberOutstandingRequests();
// Adds the testing URLs to the net::URLRequestFilter.
CONTENT_EXPORT static void AddUrlHandler();
private:
explicit URLRequestSlowDownloadJob(net::URLRequest* request);
virtual ~URLRequestSlowDownloadJob();
void GetResponseInfoConst(net::HttpResponseInfo* info) const;
// Mark all pending requests to be finished. We keep track of pending
// requests in |pending_requests_|.
static void FinishPendingRequests();
typedef std::set<URLRequestSlowDownloadJob*> SlowJobsSet;
static base::LazyInstance<SlowJobsSet,
base::LeakyLazyInstanceTraits<SlowJobsSet> >
pending_requests_;
void StartAsync();
void set_should_finish_download() { should_finish_download_ = true; }
int first_download_size_remaining_;
bool should_finish_download_;
scoped_refptr<net::IOBuffer> buffer_;
int buffer_size_;
ScopedRunnableMethodFactory<URLRequestSlowDownloadJob> method_factory_;
};
#endif // CONTENT_BROWSER_NET_URL_REQUEST_SLOW_DOWNLOAD_JOB_H_
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