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// Copyright (c) 2013 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_STREAMS_STREAM_CONTEXT_H_
#define CONTENT_BROWSER_STREAMS_STREAM_CONTEXT_H_
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/sequenced_task_runner_helpers.h"
#include "content/common/content_export.h"
namespace content {
class BrowserContext;
class StreamRegistry;
struct StreamContextDeleter;
// A context class that keeps track of StreamRegistry used by the chrome.
// There is an instance associated with each BrowserContext. There could be
// multiple URLRequestContexts in the same browser context that refers to the
// same instance.
//
// All methods, except the ctor, are expected to be called on
// the IO thread (unless specifically called out in doc comments).
class StreamContext
: public base::RefCountedThreadSafe<StreamContext,
StreamContextDeleter> {
public:
StreamContext();
CONTENT_EXPORT static StreamContext* GetFor(BrowserContext* browser_context);
void InitializeOnIOThread();
StreamRegistry* registry() const { return registry_.get(); }
protected:
virtual ~StreamContext();
private:
friend class base::DeleteHelper<StreamContext>;
friend class base::RefCountedThreadSafe<StreamContext,
StreamContextDeleter>;
friend struct StreamContextDeleter;
void DeleteOnCorrectThread() const;
scoped_ptr<StreamRegistry> registry_;
};
struct StreamContextDeleter {
static void Destruct(const StreamContext* context) {
context->DeleteOnCorrectThread();
}
};
} // namespace content
#endif // CONTENT_BROWSER_STREAMS_STREAM_CONTEXT_H_
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