SolarflareFeedEngine.h

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// Copyright Onix Solutions Limited [OnixS]. All rights reserved.
//
// This software owned by Onix Solutions Limited [OnixS] and is
// protected by copyright law and international copyright treaties.
//
// Access to and use of the software is governed by the terms of the applicable
// OnixS Software Services Agreement (the Agreement) and Customer end user license
// agreements granting a non-assignable, non-transferable and non-exclusive license
// to use the software for it's own data processing purposes under the terms defined
// in the Agreement.
//
// Except as otherwise granted within the terms of the Agreement, copying or
// reproduction of any part of this source code or associated reference material
// to any other location for further reproduction or redistribution, and any
// amendments to this copyright notice, are expressly prohibited.
//
// Any reproduction or redistribution for sale or hiring of the Software not in
// accordance with the terms of the Agreement is a violation of copyright law.
//
 
#pragma once
 
#include <OnixS/CME/MDH/Watch.h>
#include <OnixS/CME/MDH/PacketTraits.h>
#include <OnixS/CME/MDH/FeedEngine.h>
 
#include <stdexcept>
 
ONIXS_CMEMDH_NAMESPACE_BEGIN

struct ONIXS_CMEMDH_LTWT SolarflareFeedEngineMemoryPolicy
{
    using Base = Messaging::UInt32;

    enum Enum
    {
        Native = 0,

        PreferHuge,

        RequireHuge,
    };
};

ONIXS_CMEMDH_EXPORTED
void toStr(std::string& str, SolarflareFeedEngineMemoryPolicy::Enum policy);

inline std::string toStr(SolarflareFeedEngineMemoryPolicy::Enum policy)
{
    std::string str;
 
    toStr(str, policy);
 
    return str;
}

struct ONIXS_CMEMDH_LTWT SolarflareFeedEngineOperatingMode
{
    typedef Messaging::UInt32 Base;

    enum Enum
    {
        Conventional,

        Mixed
    };
};

ONIXS_CMEMDH_EXPORTED
void toStr(std::string&, SolarflareFeedEngineOperatingMode::Enum);

inline std::string toStr(SolarflareFeedEngineOperatingMode::Enum mode)
{
    std::string str;
 
    toStr(str, mode);
 
    return str;
}

class ONIXS_CMEMDH_LTWT SolarflareFeedEngineSettings : public NetFeedEngineSettings
{
public:
    SolarflareFeedEngineSettings()
        : mode_(SolarflareFeedEngineOperatingMode::Conventional)
        , memoryPolicy_(SolarflareFeedEngineMemoryPolicy::Native)
        , receiveRingSize_(static_cast<Messaging::UInt32>(-1))
        , cacheSize_(1024)
        , socketBufferSize_(8 * 1024 * 1024)
        , watch_(&UtcWatch::service())
    {
    }

    ~SolarflareFeedEngineSettings() = default;

    SolarflareFeedEngineOperatingMode::Enum mode() const
    {
        return mode_;
    }

    void mode(SolarflareFeedEngineOperatingMode::Enum mode)
    {
        mode_ = mode;
    }

    SolarflareFeedEngineMemoryPolicy::Enum memoryPolicy() const
    {
        return memoryPolicy_;
    }

    void memoryPolicy(SolarflareFeedEngineMemoryPolicy::Enum policy)
    {
        memoryPolicy_ = policy;
    }

    Messaging::UInt32 receiveRingSize() const
    {
        return receiveRingSize_;
    }

    void receiveRingSize(Messaging::UInt32 ringSize)
    {
        receiveRingSize_ = ringSize;
    }

    Messaging::UInt32 cacheSize() const
    {
        return cacheSize_;
    }

    void cacheSize(Messaging::UInt32 cacheSize)
    {
        cacheSize_ = cacheSize;
    }

    Messaging::UInt32 socketBufferSize() const
    {
        return socketBufferSize_;
    }

    void socketBufferSize(Messaging::UInt32 bufferSize)
    {
        socketBufferSize_ = bufferSize;
    }

    WatchService& watch() const
    {
        return *watch_;
    }

    void watch(WatchService& watch)
    {
        watch_ = &watch;
    }
 
private:
    SolarflareFeedEngineOperatingMode::Enum mode_;
    SolarflareFeedEngineMemoryPolicy::Enum memoryPolicy_;
 
    Messaging::UInt32 receiveRingSize_;
    Messaging::UInt32 cacheSize_;
 
    Messaging::UInt32 socketBufferSize_;
 
    WatchService* watch_;
};

ONIXS_CMEMDH_EXPORTED
void toStr(std::string&, const SolarflareFeedEngineSettings&);

inline std::string toStr(const SolarflareFeedEngineSettings& settings)
{
    std::string str;
 
    toStr(str, settings);
 
    return str;
}

class ONIXS_CMEMDH_EXPORTED SolarflareFeedEngine : public NetFeedEngine
{
public:
    using NetFeedEngine::about;

    SolarflareFeedEngine(const SolarflareFeedEngineSettings&);

    ~SolarflareFeedEngine() override;

    void info(std::string&) override;

    NetFeedLink& allocate(const NetFeed&) override;

    WatchService& watch() override;

    NetFeedEngineProcessResult process() override;
 
private:
    const std::string& id() const noexcept {return NetFeedEngine::engineId();}
 
    class Workhorse;
    Workhorse* workhorse_;
};
 
ONIXS_CMEMDH_NAMESPACE_END