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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 NET_TOOLS_FLIP_SERVER_OUTPUT_ORDERING_H_
#define NET_TOOLS_FLIP_SERVER_OUTPUT_ORDERING_H_
#include <list>
#include <map>
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "net/tools/epoll_server/epoll_server.h"
#include "net/tools/flip_server/constants.h"
#include "net/tools/flip_server/mem_cache.h"
namespace net {
class SMConnectionInterface;
class OutputOrdering {
public:
typedef std::list<MemCacheIter> PriorityRing;
typedef std::map<uint32, PriorityRing> PriorityMap;
struct PriorityMapPointer {
PriorityMapPointer();
~PriorityMapPointer();
PriorityRing* ring;
PriorityRing::iterator it;
bool alarm_enabled;
EpollServer::AlarmRegToken alarm_token;
};
typedef std::map<uint32, PriorityMapPointer> StreamIdToPriorityMap;
StreamIdToPriorityMap stream_ids_;
PriorityMap priority_map_;
PriorityRing first_data_senders_;
uint32 first_data_senders_threshold_; // when you've passed this, you're no
// longer a first_data_sender...
SMConnectionInterface* connection_;
EpollServer* epoll_server_;
explicit OutputOrdering(SMConnectionInterface* connection);
~OutputOrdering();
void Reset();
bool ExistsInPriorityMaps(uint32 stream_id) const;
struct BeginOutputtingAlarm : public EpollAlarmCallbackInterface {
public:
BeginOutputtingAlarm(OutputOrdering* oo,
OutputOrdering::PriorityMapPointer* pmp,
const MemCacheIter& mci);
virtual ~BeginOutputtingAlarm();
// EpollAlarmCallbackInterface:
virtual int64 OnAlarm() OVERRIDE;
virtual void OnRegistration(const EpollServer::AlarmRegToken& tok,
EpollServer* eps) OVERRIDE;
virtual void OnUnregistration() OVERRIDE;
virtual void OnShutdown(EpollServer* eps) OVERRIDE;
private:
OutputOrdering* output_ordering_;
OutputOrdering::PriorityMapPointer* pmp_;
MemCacheIter mci_;
EpollServer* epoll_server_;
};
void MoveToActive(PriorityMapPointer* pmp, MemCacheIter mci);
void AddToOutputOrder(const MemCacheIter& mci);
void SpliceToPriorityRing(PriorityRing::iterator pri);
MemCacheIter* GetIter();
void RemoveStreamId(uint32 stream_id);
static double server_think_time_in_s() { return server_think_time_in_s_; }
static void set_server_think_time_in_s(double value) {
server_think_time_in_s_ = value;
}
private:
static double server_think_time_in_s_;
};
} // namespace net
#endif // NET_TOOLS_FLIP_SERVER_OUTPUT_ORDERING_H_
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