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// Copyright 2014 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_CHILD_THREADEDDATAPROVIDER_IMPL_H_
#define CONTENT_CHILD_THREADEDDATAPROVIDER_IMPL_H_
#include "base/compiler_specific.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/shared_memory.h"
#include "base/memory/weak_ptr.h"
#include "ipc/ipc_channel.h"
#include "ipc/message_filter.h"
namespace blink {
class WebThreadedDataReceiver;
}
namespace IPC {
class SyncChannel;
}
namespace content {
class WebThreadImpl;
class ThreadedDataProvider {
public:
ThreadedDataProvider(
int request_id,
blink::WebThreadedDataReceiver* threaded_data_receiver,
linked_ptr<base::SharedMemory> shm_buffer,
int shm_size);
virtual ~ThreadedDataProvider();
void Stop();
void OnReceivedDataOnBackgroundThread(int data_offset,
int data_length,
int encoded_data_length);
void OnReceivedDataOnForegroundThread(const char* data,
int data_length,
int encoded_data_length);
void OnResourceMessageFilterAddedMainThread();
private:
void StopOnBackgroundThread();
void OnResourceMessageFilterAddedBackgroundThread();
void ForwardAndACKData(const char* data, int data_length);
scoped_refptr<IPC::MessageFilter> filter_;
int request_id_;
linked_ptr<base::SharedMemory> shm_buffer_;
int shm_size_;
scoped_ptr<base::WeakPtrFactory<ThreadedDataProvider> >
background_thread_weak_factory_;
WebThreadImpl& background_thread_;
IPC::SyncChannel* ipc_channel_;
blink::WebThreadedDataReceiver* threaded_data_receiver_;
bool resource_filter_active_;
base::MessageLoop* main_thread_message_loop_;
struct QueuedSharedMemoryData {
const char* data;
int length;
};
std::vector<QueuedSharedMemoryData> queued_data_;
base::WeakPtrFactory<ThreadedDataProvider>
main_thread_weak_factory_;
DISALLOW_COPY_AND_ASSIGN(ThreadedDataProvider);
};
} // namespace content
#endif // CONTENT_CHILD_THREADEDDATAPROVIDER_IMPL_H_
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