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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.
#ifndef CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
#define CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
#pragma once
#include "base/basictypes.h"
#include "base/file_path.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
class ChromeURLRequestContext;
class ChromeURLRequestContextGetter;
class IOThread;
class Profile;
// ProfileImpl owns a ProfileIOData::Handle, which holds a reference to the
// ProfileIOData. ProfileIOData is intended to own all the objects owned by
// ProfileImpl which live on the IO thread, such as, but not limited to, network
// objects like CookieMonster, HttpTransactionFactory, etc. ProfileIOData is
// owned by the ProfileImpl and ProfileIOData's ChromeURLRequestContexts. When
// all of them go away, then ProfileIOData will be deleted. Note that the
// ProfileIOData will typically outlive the Profile it is "owned" by, so it's
// important for ProfileIOData not to hold any references to the Profile beyond
// what's used by LazyParams (which should be deleted after lazy
// initialization).
class ProfileIOData : public base::RefCountedThreadSafe<ProfileIOData> {
public:
class Handle {
public:
Handle();
~Handle();
// Init() must be called before ~Handle(). It records all the necessary
// parameters needed to construct a ChromeURLRequestContextGetter.
void Init(const FilePath& cookie_path,
const FilePath& cache_path,
int cache_max_size,
const FilePath& media_cache_path,
int media_cache_max_size,
const FilePath& extensions_cookie_path,
Profile* profile);
bool HasMainRequestContext() const {
return main_request_context_getter_ != NULL;
}
scoped_refptr<ChromeURLRequestContextGetter>
GetMainRequestContextGetter() const;
scoped_refptr<ChromeURLRequestContextGetter>
GetMediaRequestContextGetter() const;
scoped_refptr<ChromeURLRequestContextGetter>
GetExtensionsRequestContextGetter() const;
private:
// Ordering is important here. Do not reorder unless you know what you're
// doing.
const scoped_refptr<ProfileIOData> io_data_;
mutable scoped_refptr<ChromeURLRequestContextGetter>
main_request_context_getter_;
mutable scoped_refptr<ChromeURLRequestContextGetter>
media_request_context_getter_;
mutable scoped_refptr<ChromeURLRequestContextGetter>
extensions_request_context_getter_;
DISALLOW_COPY_AND_ASSIGN(Handle);
};
// TODO(willchan): Move this to the private section when
// ChromeURLRequestContextFactory subclasses don't need it anymore.
struct LazyParams {
// All of these parameters are intended to be read on the IO thread.
FilePath cookie_path;
FilePath cache_path;
int cache_max_size;
FilePath media_cache_path;
int media_cache_max_size;
FilePath extensions_cookie_path;
IOThread* io_thread;
// TODO(willchan): Kill this, since the IO thread shouldn't be reading from
// the Profile. Instead, replace this with the parameters we want to copy
// from the UI thread to the IO thread.
Profile* profile;
};
// These should only be called at most once each. Ownership is reversed they
// get called, from ProfileIOData owning ChromeURLRequestContext to vice
// versa.
scoped_refptr<ChromeURLRequestContext> GetMainRequestContext() const;
scoped_refptr<ChromeURLRequestContext> GetMediaRequestContext() const;
scoped_refptr<ChromeURLRequestContext> GetExtensionsRequestContext() const;
// TODO(willchan): Delete this when ChromeURLRequestContextFactory subclasses
// don't need it anymore.
const LazyParams& lazy_params() const;
private:
friend class base::RefCountedThreadSafe<ProfileIOData>;
class RequestContext;
ProfileIOData();
~ProfileIOData();
// Lazily initializes ProfileIOData.
void LazyInitialize() const;
// Lazy initialization params.
// TODO(willchan): Delete after Initialize() finishes initializing all the
// contexts.
scoped_ptr<const LazyParams> lazy_params_;
mutable bool initialized_;
mutable scoped_refptr<RequestContext> main_request_context_;
mutable scoped_refptr<RequestContext> media_request_context_;
mutable scoped_refptr<RequestContext> extensions_request_context_;
DISALLOW_COPY_AND_ASSIGN(ProfileIOData);
};
#endif // CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
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