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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_THREADED_DATA_PROVIDER_H_
#define CONTENT_CHILD_THREADED_DATA_PROVIDER_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"
struct ResourceMsg_RequestCompleteData;
namespace blink {
class WebThreadedDataReceiver;
}
namespace IPC {
class SyncChannel;
}
namespace scheduler {
class WebThreadImplForWorkerScheduler;
}
namespace content {
class ResourceDispatcher;
class ThreadedDataProvider {
public:
ThreadedDataProvider(
int request_id,
blink::WebThreadedDataReceiver* threaded_data_receiver,
linked_ptr<base::SharedMemory> shm_buffer,
int shm_size,
scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_);
// Any destruction of this class has to bounce via the background thread to
// ensure all data is flushed; call Stop() to start this process.
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();
void OnRequestCompleteForegroundThread(
base::WeakPtr<ResourceDispatcher> resource_dispatcher,
const ResourceMsg_RequestCompleteData& request_complete_data,
const base::TimeTicks& renderer_completion_time);
private:
~ThreadedDataProvider();
void DestructOnMainThread();
void StopOnBackgroundThread();
void OnResourceMessageFilterAddedBackgroundThread();
void OnRequestCompleteBackgroundThread(
base::WeakPtr<ResourceDispatcher> resource_dispatcher,
const ResourceMsg_RequestCompleteData& request_complete_data,
const base::TimeTicks& renderer_completion_time);
void ForwardAndACKData(const char* data,
int data_length,
int encoded_data_length);
void DataNotifyForegroundThread(
scoped_ptr<std::vector<char> > data_copy,
int data_length,
int encoded_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_;
scheduler::WebThreadImplForWorkerScheduler& background_thread_;
IPC::SyncChannel* ipc_channel_;
blink::WebThreadedDataReceiver* threaded_data_receiver_;
bool resource_filter_active_;
scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
struct QueuedSharedMemoryData {
const char* data;
int length;
int encoded_length;
};
std::vector<QueuedSharedMemoryData> queued_data_;
base::WeakPtrFactory<ThreadedDataProvider>
main_thread_weak_factory_;
DISALLOW_COPY_AND_ASSIGN(ThreadedDataProvider);
};
} // namespace content
#endif // CONTENT_CHILD_THREADED_DATA_PROVIDER_H_
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