source: trunk/FACT++/src/EventBuilderWrapper.h@ 12905

#ifndef FACT_EventBuilderWrapper
#define FACT_EventBuilderWrapper

#include <sstream>

#if BOOST_VERSION < 104400
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4))
#undef BOOST_HAS_RVALUE_REFS
#endif
#endif
#include <boost/thread.hpp>
#include <boost/filesystem.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>

#include "DimWriteStatistics.h"

#include "DataCalib.h"
#include "DataWriteRaw.h"

#ifdef HAVE_FITS
#include "DataWriteFits.h"
#else
#define DataWriteFits DataWriteRaw
#endif

namespace ba = boost::asio;
namespace bs = boost::system;
namespace fs = boost::filesystem;

using ba::ip::tcp;

using namespace std;

// ========================================================================

#include "EventBuilder.h"

extern "C" {
    extern void StartEvtBuild();
    extern int CloseRunFile(uint32_t runId, uint32_t closeTime, uint32_t maxEvt);
}

// ========================================================================

class EventBuilderWrapper
{
public:
    // FIXME
    static EventBuilderWrapper *This;

    MessageImp &fMsg;

private:
    boost::thread fThread;

    enum CommandStates_t // g_runStat
    {
        kAbort      = -2,   // quit as soon as possible ('abort')
        kExit       = -1,   // stop reading, quit when buffered events done ('exit')
        kInitialize =  0,   // 'initialize' (e.g. dim not yet started)
        kHybernate  =  1,   // do nothing for long time ('hybernate') [wakeup within ~1sec]
        kSleep      =  2,   // do nothing ('sleep')                   [wakeup within ~10msec]
        kModeFlush  = 10,   // read data from camera, but skip them ('flush')
        kModeTest   = 20,   // read data and process them, but do not write to disk ('test')
        kModeFlag   = 30,   // read data, process and write all to disk ('flag')
        kModeRun    = 40,   // read data, process and write selected to disk ('run')
    };

    enum
    {
        kCurrent   = 0,
        kTotal     = 1,
        kEventId   = 2,
        kTriggerId = 3,
    };

    FAD::FileFormat_t fFileFormat;

    uint32_t fMaxRun;
    uint32_t fLastOpened;
    uint32_t fLastClosed;
    uint32_t fNumEvts[4];

    DimWriteStatistics  fDimWriteStats;
    DimDescribedService fDimRuns;
    DimDescribedService fDimEvents;
    DimDescribedService fDimRawData;
    DimDescribedService fDimEventData;
    DimDescribedService fDimFeedbackData;
    DimDescribedService fDimFwVersion;
    DimDescribedService fDimRunNumber;
    DimDescribedService fDimStatus;
    DimDescribedService fDimDNA;
    DimDescribedService fDimTemperature;
    DimDescribedService fDimPrescaler;
    DimDescribedService fDimRefClock;
    DimDescribedService fDimRoi;
    DimDescribedService fDimDac;
    DimDescribedService fDimDrsCalibration;
    DimDescribedService fDimStatistics1;
    DimDescribedService fDimStatistics2;
    DimDescribedService fDimFileFormat;

    bool fDebugStream;
    bool fDebugRead;
    bool fDebugLog;

    string   fPath;
    uint32_t fRunNumber;

protected:
    int64_t InitRunNumber()
    {
        fRunNumber = 1000;

        // Ensure that the night doesn't change during our check
        const int check = Time().NightAsInt();

        while (--fRunNumber>0)
        {
            const string name = DataProcessorImp::FormFileName(fPath, fRunNumber, "");

            if (access((name+"bin").c_str(), F_OK) == 0)
                break;
            if (access((name+"fits").c_str(), F_OK) == 0)
                break;
            if (access((name+"drs.fits").c_str(), F_OK) == 0)
                break;

        }

        if (check != Time().NightAsInt())
            return InitRunNumber();

        fRunNumber++;

        if (fRunNumber==1000)
        {
            fMsg.Error("You have a file with run-number 1000 in "+fPath);
            return -1;
        }

        ostringstream str;
        str << "Set next run-number to " << fRunNumber << " determined from " << fPath;
        fMsg.Message(str);

        fMsg.Info(" ==> TODO: Crosscheck with database!");

        return check;
    }

    int64_t InitRunNumber(const string &path)
    {
        if (!DimWriteStatistics::DoesPathExist(path, fMsg))
        {
            fMsg.Error("Data path "+path+" does not exist!");
            return -1;
        }

        //const fs::path fullPath = fs::system_complete(fs::path(path));

        fPath = path;

        fDimWriteStats.SetCurrentFolder(fPath);

        return InitRunNumber();
    }

public:
    EventBuilderWrapper(MessageImp &imp) : fMsg(imp),
        fFileFormat(FAD::kNone), fMaxRun(0), fLastOpened(0), fLastClosed(0),
        fDimWriteStats  ("FAD_CONTROL", imp),
        fDimRuns        ("FAD_CONTROL/RUNS",               "I:5;C",
                                                           "Run files statistics"
                                                           "|stats[int]:num. of open run files, min run num., max run num., lastest opened or closed run"
                                                           "|file[string]:filename of last opened file"),
        fDimEvents      ("FAD_CONTROL/EVENTS",             "I:4",
                                                           "Event counts"
                                                           "|evtsCount[int]:Num evts cur. run, total (all run), evt ID, trig. Num"),
        fDimRawData     ("FAD_CONTROL/RAW_DATA",           "S:1;I:1;S:1;I:1;I:2;I:40;S:1440;S:160;F", ""),
        fDimEventData   ("FAD_CONTROL/EVENT_DATA",         "F:1440;F:1440;F:1440;F:1440", ""),
        fDimFeedbackData("FAD_CONTROL/FEEDBACK_DATA",      "F:1440", ""),
        fDimFwVersion   ("FAD_CONTROL/FIRMWARE_VERSION",   "F:42",
                                                           "Firmware version number of fad boards"
                                                           "|firmware[float]:Version number of firmware, for each board. 40=min, 41=max"),
        fDimRunNumber   ("FAD_CONTROL/RUN_NUMBER",         "I:42",
                                                           "Run numbers coming from FAD boards"
                                                           "|runNumbers[int]:current run number of each FAD board. 40=min, 41=max"),
        fDimStatus      ("FAD_CONTROL/STATUS",             "S:42",
                                                           "Status of FAD boards"
                                                           "|status[bitpattern]:Status of each FAD board. Maybe buggy"),
        fDimDNA         ("FAD_CONTROL/DNA",                "X:40",
                                                           "DNA of FAD boards"
                                                           "|DNA[hex]:Hex identifier of each FAD board"),
        fDimTemperature ("FAD_CONTROL/TEMPERATURE",        "F:82",
                                                           "FADs temperatures"
                                                           "|temp[deg. C]:0 global min, 1-40 min, 41 global max, 42-81 max"),
        fDimPrescaler   ("FAD_CONTROL/PRESCALER",          "S:42",
                                                           "Trigger generator prescaler of fad boards"
                                                           "|prescaler[int]:Trigger generator prescaler value, for each board"),
        fDimRefClock    ("FAD_CONTROL/REFERENCE_CLOCK",    "I:42",
                                                           "Reference clock of FAD boards"
                                                           "|refClocks[t]:ref clocks of FAD boards. 40=min, 41=max"),
        fDimRoi         ("FAD_CONTROL/REGION_OF_INTEREST", "S:2",  ""),
        fDimDac         ("FAD_CONTROL/DAC",                "S:336",
                                                           "DAC counts of each FAD board"
                                                           "|DAC[int]:DAC counts, sequentally DAC 0 board 0, DAC 0 board 1... (plus min max)"),
        fDimDrsCalibration("FAD_CONTROL/DRS_CALIBRATION",  "I:1;I:3;F:1474560;F:1474560;F:1474560;F:1474560;F:1474560;F:1474560;F:163840;F:163840", ""),
        fDimStatistics1 ("FAD_CONTROL/STATISTICS1",        "I:3;I:5;X:4;I:3;I:3;I:40;I:1;I:2;C:40;I:40;I:40;X:40",
                                                           "Event Builder status for GUI display"
                                                           "|threadInfo[int]:Number of read, proc and writes"
                                                           "|bufferInfo[int]:Events in buffer, incomp., comp., tot., max past cycle, total"
                                                           "|memInfo[int]:total buf. mem, used mem, max used, max past cycle"
                                                           "|EvtCnt[int]:Number of events skipped, written, with errors"
                                                           "|badRoi[int]:Num boards with wrong ROI in event, run or board"
                                                           "|badRoiBoard[int]:Num boards with wrong ROI"
                                                           "|deltaT[ms]:Time in ms for rates"
                                                           "|rateNew[int]:Number of new start events received"
                                                           "|numConn[int]:Number of connections per board"
                                                           "|errConn[int]:IO errors per board"
                                                           "|rateBytes[int]:Bytes read this cycle"
                                                           "|totBytes[int]:Bytes read (counter)"),
        fDimStatistics2 ("FAD_CONTROL/STATISTICS2",        "I:1;I:280;X:40;I:40;I:4;I:4;I:2;I:2;I:3;C:40",
                                                           "Event Builder status, events oriented"
                                                           "|reset[int]:If increased, reset all counters"
                                                           "|numRead[int]:How often sucessful read from N sockets per loop"
                                                           "|gotByte[int]:number of bytes read per board"
                                                           "|gotErr[int]:number of com. errors per board"
                                                           "|evtStat[int]:number of evts read, completed, with errors, incomplete"
                                                           "|procStat[int]:num. of evts proc., w probs, acc. or rej. by SW trigger"
                                                           "|feedStat[int]:number of evts used or rejected by feedback system"
                                                           "|wrtStat[int]:number of evts written to disk, with errors"
                                                           "|runStat[int]:number of run opened, closed, with open or close errors"
                                                           "|numConn[int]:number of sockets successfully opened per board"),
        fDimFileFormat  ("FAD_CONTROL/FILE_FORMAT",        "S:1",  ""),
        fDebugStream(false), fDebugRead(false), fDebugLog(false)
    {
        if (This)
            throw logic_error("EventBuilderWrapper cannot be instantiated twice.");

        This = this;

        memset(fNumEvts, 0, sizeof(fNumEvts));
        fDimEvents.Update(fNumEvts);

        for (size_t i=0; i<40; i++)
            ConnectSlot(i, tcp::endpoint());
    }
    virtual ~EventBuilderWrapper()
    {
        Abort();

        // FIXME: Used timed_join and abort afterwards
        //        What's the maximum time the eb need to abort?
        fThread.join();
        //ffMsg.Info("EventBuilder stopped.");

        for (vector<DataProcessorImp*>::iterator it=fFiles.begin(); it!=fFiles.end(); it++)
            delete *it;
    }

    set<uint32_t> fIsRunStarted;
    map<uint32_t, FAD::RunDescription> fExpectedRuns;

    uint32_t StartNewRun(int64_t maxtime, int64_t maxevt, const pair<string, FAD::Configuration> &ref)
    {
        if (maxtime<=0 || maxtime>24*60*60)
            maxtime = 24*60*60;
        if (maxevt<=0 || maxevt>INT32_MAX)
            maxevt  = INT32_MAX;

        const FAD::RunDescription descr =
        {
            uint32_t(maxtime),
            uint32_t(maxevt),
            ref.first,
            ref.second,
        };

        // FIMXE: Maybe reset an event counter so that the mcp can count events?

        fMsg.Info(" ==> TODO: Set a limit on the size of fExpectedRuns!");

        fExpectedRuns[fRunNumber] = descr;
        fIsRunStarted.insert(fRunNumber);
        return fRunNumber++;
    }

    bool IsThreadRunning()
    {
        return !fThread.timed_join(boost::posix_time::microseconds(0));
    }

    void SetMaxMemory(unsigned int mb) const
    {
        /*
        if (mb*1000000<GetUsedMemory())
        {
            // ffMsg.Warn("...");
            return;
        }*/

        g_maxMem = size_t(mb)*1000000;
    }

    void StartThread(const vector<tcp::endpoint> &addr)
    {
        if (IsThreadRunning())
        {
            fMsg.Warn("Start - EventBuilder still running");
            return;
        }

        fLastMessage.clear();

        for (size_t i=0; i<40; i++)
            ConnectSlot(i, addr[i]);

        g_runStat = kModeRun;
        g_maxProc = 3;

        fMsg.Message("Starting EventBuilder thread");

        fThread = boost::thread(StartEvtBuild);
    }
    void ConnectSlot(unsigned int i, const tcp::endpoint &addr)
    {
        if (i>39)
            return;

        if (addr==tcp::endpoint())
        {
            DisconnectSlot(i);
            return;
        }

        g_port[i].sockAddr.sin_family      = AF_INET;
        g_port[i].sockAddr.sin_addr.s_addr = htonl(addr.address().to_v4().to_ulong());
        g_port[i].sockAddr.sin_port        = htons(addr.port());
        // In this order
        g_port[i].sockDef = 1;
    }
    void DisconnectSlot(unsigned int i)
    {
        if (i>39)
            return;

        g_port[i].sockDef = 0;
        // In this order
        g_port[i].sockAddr.sin_family      = AF_INET;
        g_port[i].sockAddr.sin_addr.s_addr = 0;
        g_port[i].sockAddr.sin_port        = 0;
    }
    void IgnoreSlot(unsigned int i)
    {
        if (i>39)
            return;
        if (g_port[i].sockAddr.sin_port==0)
            return;

        g_port[i].sockDef = -1;
    }


    void Abort()
    {
        fMsg.Message("Signal abort to EventBuilder thread...");
        g_runStat = kAbort;
    }

    void ResetThread(bool soft)
    {
        /*
         if (g_reset > 0)

            * suspend reading
            * reset = g_reset;
            * g_reset=0

            * reset% 10
                == 0  leave event Buffers as they are
                == 1  let all buffers drain (write (incomplete) events)
                >  1  flush all buffers (do not write buffered events)

            * (reset/10)%10
                > 0   close all sockets and destroy them (also free the
                      allocated read-buffers)
                      recreate before resuming operation
                      [ this is more than just close/open that can be
                        triggered by e.g. close/open the base-socket ]

            * (reset/100)%10
                > 0   close all open run-files

            * (reset/1000)
                      sleep so many seconds before resuming operation
                      (does not (yet) take into account time left when waiting
                      for buffers getting empty ...)

            * resume_reading

         */
        fMsg.Message("Signal reset to EventBuilder thread...");
        g_reset = soft ? 101 : 102;
    }

    void Exit()
    {
        fMsg.Message("Signal exit to EventBuilder thread...");
        g_runStat = kExit;
    }

    /*
    void Wait()
    {
        fThread.join();
        ffMsg.Message("EventBuilder stopped.");
    }*/

    void Hybernate() const { g_runStat = kHybernate; }
    void Sleep()     const { g_runStat = kSleep;     }
    void FlushMode() const { g_runStat = kModeFlush; }
    void TestMode()  const { g_runStat = kModeTest;  }
    void FlagMode()  const { g_runStat = kModeFlag;  }
    void RunMode()   const { g_runStat = kModeRun;   }

    // FIXME: To be removed
    void SetMode(int mode) const { g_runStat = mode; }

    bool IsConnected(int i) const     { return gi_NumConnect[i]==7; }
    bool IsConnecting(int i) const    { return !IsConnected(i) && !IsDisconnected(i); }
    bool IsDisconnected(int i) const  { return gi_NumConnect[i]<=0 && g_port[i].sockDef==0; }
    int  GetNumConnected(int i) const { return gi_NumConnect[i]; }
    int GetNumFilesOpen() const       { return fFiles.size(); }

    /*
    bool IsConnected(int i) const     { return gi_NumConnect[i]>0; }
    bool IsConnecting(int i) const    { return !IsConnected(i) && !IsDisconnected(i); }
    bool IsDisconnected(int i) const  { return gi_NumConnect[i]<=0 && g_port[i].sockDef==0; }
    int  GetNumConnected(int i) const { return gi_NumConnect[i]; }
    */

    void SetIgnore(int i, bool b) const { if (g_port[i].sockDef!=0) g_port[i].sockDef=b?-1:1; }
    bool IsIgnored(int i) const { return g_port[i].sockDef==-1; }

    void SetOutputFormat(FAD::FileFormat_t f)
    {
        fFileFormat = f;
        fDimFileFormat.Update(uint16_t(f));
        if (fFileFormat==FAD::kCalib)
        {
            DataCalib::Restart();
            DataCalib::Update(fDimDrsCalibration);
            fMsg.Message("Resetted DRS calibration.");
        }
    }

    virtual int ResetSecondaryDrsBaseline()
    {
        if (DataCalib::ResetTrgOff(fDimDrsCalibration))
        {
            fFileFormat = FAD::kCalib;
            fDimFileFormat.Update(uint16_t(fFileFormat));
            fMsg.Message("Resetted DRS calibration for secondary baseline.");
        }
        else
            fMsg.Warn("Could not reset DRS calibration of secondary baseline.");

        return 0;
    }

    void SetDebugLog(bool b) { fDebugLog = b; }

    void SetDebugStream(bool b)
    {
        fDebugStream = b;
        if (b)
            return;

        for (int i=0; i<40; i++)
        {
            if (!fDumpStream[i].is_open())
                continue;

            fDumpStream[i].close();

            ostringstream name;
            name << "socket_dump-" << setfill('0') << setw(2) << i << ".bin";
            fMsg.Message("Closed file '"+name.str()+"'");
        }
    }

    void SetDebugRead(bool b)
    {
        fDebugRead = b;
        if (b || !fDumpRead.is_open())
            return;

        fDumpRead.close();
        fMsg.Message("Closed file 'socket_events.txt'");
    }

//    size_t GetUsedMemory() const { return gi_usedMem; }

    void LoadDrsCalibration(const char *fname)
    {
        if (!DataCalib::ReadFits(fname, fMsg))
            return;
        fMsg.Info("Successfully loaded DRS calibration from "+string(fname));
        DataCalib::Update(fDimDrsCalibration);
    }

    virtual int CloseOpenFiles() { CloseRunFile(0, 0, 0); return 0; }


    /*
     struct OpenFileToDim
     {
        int code;
        char fileName[FILENAME_MAX];
     };

     SignalRunOpened(runid, filename);
     // Send num open files
     // Send runid, (more info about the run?), filename via dim

     SignalEvtWritten(runid);
     // Send num events written of newest file

     SignalRunClose(runid);
     // Send new num open files
     // Send empty file-name if no file is open

     */

    // -------------- Mapped event builder callbacks ------------------

    void UpdateRuns(const string &fname="")
    {
        uint32_t values[5] =
        {
            static_cast<uint32_t>(fFiles.size()),
            0xffffffff,
            0,
            fLastOpened,
            fLastClosed
        };

        for (vector<DataProcessorImp*>::const_iterator it=fFiles.begin();
             it!=fFiles.end(); it++)
        {
            const DataProcessorImp *file = *it;

            if (file->GetRunId()<values[1])
                values[1] = file->GetRunId();

            if (file->GetRunId()>values[2])
                values[2] = file->GetRunId();
        }

        fMaxRun = values[2];

        vector<char> data(sizeof(values)+fname.size()+1);
        memcpy(data.data(), values, sizeof(values));
        strcpy(data.data()+sizeof(values), fname.c_str());

        fDimRuns.Update(data);
    }

    vector<DataProcessorImp*> fFiles;

    FileHandle_t runOpen(uint32_t runid, RUN_HEAD *h, size_t)
    {
        fMsg.Info(" ==> TODO: Update run configuration in database!");

        map<uint32_t,FAD::RunDescription>::iterator it = fExpectedRuns.begin();
        while (it!=fExpectedRuns.end())
        {
            if (it->first<runid)
            {
                ostringstream str;
                str << "runOpen - Missed run " << it->first << ".";
                fMsg.Info(str);

                fExpectedRuns.erase(it++);
                continue;
            }
            if (it->first==runid)
                break;
            it++;
        }
        if (it==fExpectedRuns.end())
        {
            ostringstream str;
            str << "runOpen - Run " << runid << " wasn't expected.";
            fMsg.Warn(str);
        }

        const FAD::RunDescription desc = it->second;

        fExpectedRuns.erase(it);

        // Check if file already exists...
        DataProcessorImp *file = 0;
        switch (fFileFormat)
        {
        case FAD::kNone:  file = new DataDump(fPath, runid,  fMsg); break;
        case FAD::kDebug: file = new DataDebug(fPath, runid, fMsg); break;
        case FAD::kFits:  file = new DataWriteFits(fPath, runid,  fMsg); break;
        case FAD::kRaw:   file = new DataWriteRaw(fPath, runid,   fMsg); break;
        case FAD::kCalib: file = new DataCalib(fPath, runid, fDimDrsCalibration, fMsg); break;
        }

        try
        {
            if (!file->Open(h, desc))
                return 0;
        }
        catch (const exception &e)
        {
            fMsg.Error("Exception trying to open file: "+string(e.what()));
            return 0;
        }

        fFiles.push_back(file);

        ostringstream str;
        str << "Opened: " << file->GetFileName() << " (" << file->GetRunId() << ")";
        fMsg.Info(str);

        fDimWriteStats.FileOpened(file->GetFileName());

        fLastOpened = runid;
        UpdateRuns(file->GetFileName());

        fNumEvts[kEventId] = 0;
        fNumEvts[kTriggerId] = 0;

        fNumEvts[kCurrent] = 0;
        fDimEvents.Update(fNumEvts);
        // fDimCurrentEvent.Update(uint32_t(0));

        return reinterpret_cast<FileHandle_t>(file);
    }

    int runWrite(FileHandle_t handler, EVENT *e, size_t /*sz*/)
    {
        DataProcessorImp *file = reinterpret_cast<DataProcessorImp*>(handler);

        if (!file->WriteEvt(e))
            return -1;

        if (file->GetRunId()==fMaxRun)
        {
            fNumEvts[kCurrent]++;
            fNumEvts[kEventId]   = e->EventNum;
            fNumEvts[kTriggerId] = e->TriggerNum;
        }

        fNumEvts[kTotal]++;

        static Time oldt(boost::date_time::neg_infin);
        Time newt;
        if (newt>oldt+boost::posix_time::seconds(1))
        {
            fDimEvents.Update(fNumEvts);
            oldt = newt;
        }


        // ===> SignalEvtWritten(runid);
        // Send num events written of newest file

        /* close run runId (all all runs if runId=0) */
        /* return: 0=close scheduled / >0 already closed / <0 does not exist */
        //CloseRunFile(file->GetRunId(), time(NULL)+2) ;

        return 0;
    }

    virtual void CloseRun(uint32_t /*runid*/) { }

    int runClose(FileHandle_t handler, RUN_TAIL *tail, size_t)
    {
        fMsg.Info(" ==> TODO: Update run configuration in database!");

        DataProcessorImp *file = reinterpret_cast<DataProcessorImp*>(handler);

        const vector<DataProcessorImp*>::iterator it = find(fFiles.begin(), fFiles.end(), file);
        if (it==fFiles.end())
        {
            ostringstream str;
            str << "File handler (" << handler << ") requested to close by event builder doesn't exist.";
            fMsg.Fatal(str);
            return -1;
        }

        fFiles.erase(it);

        fLastClosed = file->GetRunId();
        CloseRun(fLastClosed);
        UpdateRuns();

        fDimEvents.Update(fNumEvts);

        const bool rc = file->Close(tail);
        if (!rc)
        {
            // Error message
        }

        ostringstream str;
        str << "Closed: " << file->GetFileName() << " (" << file->GetRunId() << ")";
        fMsg.Info(str);

        delete file;

        // ==> SignalRunClose(runid);
        // Send new num open files
        // Send empty file-name if no file is open

        return rc ? 0 : -1;
    }

    ofstream fDumpStream[40];

    void debugStream(int isock, void *buf, int len)
    {
        if (!fDebugStream)
            return;

        const int slot = isock/7;
        if (slot<0 || slot>39)
            return;

        if (!fDumpStream[slot].is_open())
        {
            ostringstream name;
            name << "socket_dump-" << setfill('0') << setw(2) << slot << ".bin";

            fDumpStream[slot].open(name.str().c_str(), ios::app);
            if (!fDumpStream[slot])
            {
                ostringstream str;
                str << "Open file '" << name << "': " << strerror(errno) << " (errno=" << errno << ")";
                fMsg.Error(str);

                return;
            }

            fMsg.Message("Opened file '"+name.str()+"' for writing.");
        }

        fDumpStream[slot].write(reinterpret_cast<const char*>(buf), len);
    }

    ofstream fDumpRead; // Stream to possibly dump docket events

    void debugRead(int isock, int ibyte, uint32_t event, uint32_t ftmevt, uint32_t runno, int state, uint32_t tsec, uint32_t tusec)
    {
        //   isock = socketID (0-279)
        //   ibyte = #bytes gelesen
        //   event = eventId (oder 0 wenn noch nicht bekannt)
        //   state : 1=finished reading data
        //           0=reading data
        //          -1=start reading data (header)
        //          -2=start reading data,
        //             eventId not known yet (too little data)
        //   tsec, tusec = time when reading seconds, microseconds
        //
        if (!fDebugRead || ibyte==0)
            return;

        if (!fDumpRead.is_open())
        {
            fDumpRead.open("socket_events.txt", ios::app);
            if (!fDumpRead)
            {
                ostringstream str;
                str << "Open file 'socket_events.txt': " << strerror(errno) << " (errno=" << errno << ")";
                fMsg.Error(str);

                return;
            }

            fMsg.Message("Opened file 'socket_events.txt' for writing.");

            fDumpRead << "# START: " << Time().GetAsStr() << endl;
            fDumpRead << "# state time_sec time_usec socket slot runno event_id trigger_id bytes_received" << endl;
        }

        fDumpRead
            << setw(2) << state   << " "
            << setw(8) << tsec    << " "
            << setw(9) << tusec   << " "
            << setw(3) << isock   << " "
            << setw(2) << isock/7 << " "
            << runno  << " "
            << event  << " "
            << ftmevt << " "
            << ibyte << endl;
    }

    array<uint16_t,2> fVecRoi;

    int eventCheck(uint32_t runNr, PEVNT_HEADER *fadhd, EVENT *event, int /*iboard*/)
    {
        /*
         fadhd[i] ist ein array mit den 40 fad-headers
         (falls ein board nicht gelesen wurde, ist start_package_flag =0 )

         event  ist die Struktur, die auch die write routine erhaelt;
         darin sind im header die 'soll-werte' fuer z.B. eventID
         als auch die ADC-Werte (falls Du die brauchst)

         Wenn die routine einen negativen Wert liefert, wird das event
         geloescht (nicht an die write-routine weitergeleitet [mind. im Prinzip]
         */

        const array<uint16_t,2> roi = {{ event->Roi, event->RoiTM }};

        if (roi!=fVecRoi)
        {
            Update(fDimRoi, roi);
            fVecRoi = roi;
        }

        const FAD::EventHeader *beg = reinterpret_cast<FAD::EventHeader*>(fadhd);
        const FAD::EventHeader *end = reinterpret_cast<FAD::EventHeader*>(fadhd)+40;

        // FIMXE: Compare with target configuration

        for (const FAD::EventHeader *ptr=beg; ptr!=end; ptr++)
        {
            // FIXME: Compare with expectations!!!
            if (ptr->fStartDelimiter==0)
            {
                if (ptr==beg)
                    beg++;
                continue;
            }

            if (beg->fStatus != ptr->fStatus)
            {
                fMsg.Error("Inconsistency in FAD status detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                return -1;
            }

            if (beg->fRunNumber != ptr->fRunNumber)
            {
                fMsg.Error("Inconsistent run number detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                return -1;
            }

            /*
            if (beg->fVersion != ptr->fVersion)
            {
                Error("Inconsist firmware version detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                break;
            }
            if (beg->fEventCounter != ptr->fEventCounter)
            {
                Error("Inconsist run number detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                break;
            }
            if (beg->fTriggerCounter != ptr->fTriggerCounter)
            {
                Error("Inconsist trigger number detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                break;
            }*/

            if (beg->fAdcClockPhaseShift != ptr->fAdcClockPhaseShift)
            {
                fMsg.Error("Inconsistent phase shift detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                return -1;
            }

            if (memcmp(beg->fDac, ptr->fDac, sizeof(beg->fDac)))
            {
                fMsg.Error("Inconsistent DAC values detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                return -1;
            }

            if (beg->fTriggerType != ptr->fTriggerType)
            {
                fMsg.Error("Inconsistent trigger type detected.... closing run.");
                CloseRunFile(runNr, 0, 0);
                return -1;
            }
        }

        // check REFCLK_frequency
        // check consistency with command configuration
        // how to log errors?
        // need gotNewRun/closedRun to know it is finished

        return 0;
    }

    void SendRawData(PEVNT_HEADER */*fadhd*/, EVENT *event)
    {
        // Currently we send any event no matter what its trigger id is...
        // To be changed.
        static Time oldt(boost::date_time::neg_infin);
        Time newt;

        // FIXME: Only send events if the have newer run-numbers
        if (newt<oldt+boost::posix_time::seconds(1))
            return;

        oldt = newt;

        vector<char> data(sizeof(EVENT)+event->Roi*sizeof(float)*(1440+160));
        memcpy(data.data(), event, sizeof(EVENT));

        float *vec = reinterpret_cast<float*>(data.data()+sizeof(EVENT));

        DataCalib::Apply(vec, event->Adc_Data, event->StartPix, event->Roi);
        fDimRawData.Update(data);

        DrsCalibrate::RemoveSpikes(vec, event->Roi);

        vector<float> data2(1440*4); // Mean, RMS, Max, Pos
        DrsCalibrate::GetPixelStats(data2.data(), vec, event->Roi);

        fDimEventData.Update(data2);
    }

    void SendFeedbackData(PEVNT_HEADER *fadhd, EVENT *event)
    {
        if (!DataCalib::IsValid())
            return;

        // Workaround to find a valid header.....
        const FAD::EventHeader *beg = reinterpret_cast<FAD::EventHeader*>(fadhd);
        const FAD::EventHeader *end = reinterpret_cast<FAD::EventHeader*>(fadhd)+40;

        // FIMXE: Compare with target configuration

        const FAD::EventHeader *ptr=beg;
        for (; ptr!=end; ptr++)
        {
            if (ptr->fStartDelimiter==0)
                continue;

            if (!ptr->HasTriggerLPext() && !ptr->HasTriggerLPint())
                return;
        }

        if (ptr->fStartDelimiter==0)
            return;

        vector<float> data(event->Roi*1440);
        DataCalib::Apply(data.data(), event->Adc_Data, event->StartPix, event->Roi);

        DrsCalibrate::RemoveSpikes(data.data(), event->Roi);

        vector<float> data2(1440); // Mean, RMS, Max, Pos, first, last
        DrsCalibrate::GetPixelMax(data2.data(), data.data(), event->Roi, 0, event->Roi-1);

        fDimFeedbackData.Update(data2);
    }

    int subProcEvt(int threadID, PEVNT_HEADER *fadhd, EVENT *event, int16_t /*iboard*/, void */*buffer*/)
    {
        switch (threadID)
        {
        case 0:
            SendRawData(fadhd, event);
            return 1;
        case 1:
            SendFeedbackData(fadhd, event);
            return 2;
        }
        return 100;
    }


    bool IsRunStarted() const
    {
        const set<uint32_t>::const_iterator it = fIsRunStarted.find(fRunNumber-1);
        return it==fIsRunStarted.end();// ? true : it->second.started;
    }

    uint32_t GetRunNumber() const
    {
        return fRunNumber;
    }

    void IncreaseRunNumber(uint32_t run)
    {
        if (run>fRunNumber)
            fRunNumber = run;
    }

    void gotNewRun(uint32_t runnr, PEVNT_HEADER */*headers*/)
    {
        // This function is called even when writing is switched off
        set<uint32_t>::iterator it = fIsRunStarted.begin();
        while (it!=fIsRunStarted.end())
        {
            if (*it<runnr)
            {
                ostringstream str;
                str << "gotNewRun - Missed run " << *it << ".";
                fMsg.Info(str);

                fIsRunStarted.erase(it++);
                continue;
            }
            if (*it==runnr)
                break;
            it++;
        }
        if (it==fIsRunStarted.end())
        {
            ostringstream str;
            str << "gotNewRun - Not waiting for run " << runnr << ".";
            fMsg.Warn(str);
            return;
        }

        map<uint32_t,FAD::RunDescription>::iterator i2 = fExpectedRuns.find(runnr);
        if (i2==fExpectedRuns.end())
        {
            ostringstream str;
            str << "gotNewRun - Run " << runnr << " wasn't expected.";
            fMsg.Warn(str);
            return;
        }

        CloseRunFile(runnr, time(NULL)+i2->second.maxtime, i2->second.maxevt);
        // return: 0=close scheduled / >0 already closed / <0 does not exist

        // FIXME: Move configuration from expected runs to runs which will soon
        //        be opened/closed

        fIsRunStarted.erase(it);
    }

    map<boost::thread::id, string> fLastMessage;

    void factOut(int severity, int err, const char *message)
    {
        if (!fDebugLog && severity==99)
            return;

        ostringstream str;
        //str << boost::this_thread::get_id() << " ";
        str << "EventBuilder(";
        if (err<0)
            str << "---";
        else
            str << err;
        str << "): " << message;

        string &old = fLastMessage[boost::this_thread::get_id()];

        if (str.str()==old)
            return;
        old = str.str();

        fMsg.Update(str, severity);
    }
/*
    void factStat(int64_t *stat, int len)
    {
        if (len!=7)
        {
            fMsg.Warn("factStat received unknown number of values.");
            return;
        }

        vector<int64_t> data(1, g_maxMem);
        data.insert(data.end(), stat, stat+len);

        static vector<int64_t> last(8);
        if (data==last)
            return;
        last = data;

        fDimStatistics.Update(data);

        //   len ist die Laenge des arrays.
        //   array[4] enthaelt wieviele bytes im Buffer aktuell belegt sind; daran
        //   kannst Du pruefen, ob die 100MB voll sind ....

        ostringstream str;
        str
            << "Wait=" << stat[0] << " "
            << "Skip=" << stat[1] << " "
            << "Del="  << stat[2] << " "
            << "Tot="  << stat[3] << " "
            << "Mem="  << stat[4] << "/" << g_maxMem << " "
            << "Read=" << stat[5] << " "
            << "Conn=" << stat[6];

        fMsg.Info(str);
    }
    */

    void factStat(const EVT_STAT &stat)
    {
        fDimStatistics2.Update(stat);
    }

    void factStat(const GUI_STAT &stat)
    {
        fDimStatistics1.Update(stat);
    }


    array<FAD::EventHeader, 40> fVecHeader;

    template<typename T, class S>
    array<T, 42> Compare(const S *vec, const T *t)
    {
        const int offset = reinterpret_cast<const char *>(t) - reinterpret_cast<const char *>(vec);

        const T *min = NULL;
        const T *val = NULL;
        const T *max = NULL;

        array<T, 42> arr;

        // bool rc = true;
        for (int i=0; i<40; i++)
        {
            const char *base = reinterpret_cast<const char*>(vec+i);
            const T *ref = reinterpret_cast<const T*>(base+offset);

            arr[i] = *ref;

            if (gi_NumConnect[i]!=7)
            {
                arr[i] = 0;
                continue;
            }

            if (!val)
            {
                min = ref;
                val = ref;
                max = ref;
            }

            if (*ref<*min)
                min = ref;

            if (*ref>*max)
                max = ref;

            // if (*val!=*ref)
            //     rc = false;
        }

        arr[40] = val ? *min : 1;
        arr[41] = val ? *max : 0;

        return arr;
    }

    template<typename T>
    array<T, 42> CompareBits(const FAD::EventHeader *h, const T *t)
    {
        const int offset = reinterpret_cast<const char *>(t) - reinterpret_cast<const char *>(h);

        T val = 0;
        T rc  = 0;

        array<T, 42> vec;

        bool first = true;

        for (int i=0; i<40; i++)
        {
            const char *base = reinterpret_cast<const char*>(&fVecHeader[i]);
            const T *ref = reinterpret_cast<const T*>(base+offset);

            vec[i+2] = *ref;

            if (gi_NumConnect[i]!=7)
            {
                vec[i+2] = 0;
                continue;
            }

            if (first)
            {
                first = false;
                val = *ref;
                rc = 0;
            }

            rc |= val^*ref;
        }

        vec[0] = rc;
        vec[1] = val;

        return vec;
    }

    template<typename T, size_t N>
    void Update(DimDescribedService &svc, const array<T, N> &data, int n=N)
    {
//        svc.setQuality(vec[40]<=vec[41]);
        svc.setData(const_cast<T*>(data.data()), sizeof(T)*n);
        svc.Update();
    }

    template<typename T>
        void Print(const char *name, const pair<bool,array<T, 43>> &data)
    {
        cout << name << "|" << data.first << "|" << data.second[1] << "|" << data.second[0] << "<x<" << data.second[1] << ":";
        for (int i=0; i<40;i++)
            cout << " " << data.second[i+3];
        cout << endl;
    }

    vector<uint> fNumConnected;

    void debugHead(int /*socket*/, const FAD::EventHeader &h)
    {
        const uint16_t id = h.Id();
        if (id>39) 
            return;

        if (fNumConnected.size()!=40)
            fNumConnected.resize(40);

        const vector<uint> con(gi_NumConnect, gi_NumConnect+40);

        const bool changed = con!=fNumConnected || !IsThreadRunning();

        fNumConnected = con;

        const FAD::EventHeader old = fVecHeader[id];
        fVecHeader[id] = h;

        if (old.fVersion != h.fVersion || changed)
        {
            const array<uint16_t,42> ver = Compare(&fVecHeader[0], &fVecHeader[0].fVersion);

            array<float,42> data;
            for (int i=0; i<42; i++)
            {
                ostringstream str;
                str << (ver[i]>>8) << '.' << (ver[i]&0xff);
                data[i] = stof(str.str());
            }
            Update(fDimFwVersion, data);
        }

        if (old.fRunNumber != h.fRunNumber || changed)
        {
            const array<uint32_t,42> run = Compare(&fVecHeader[0], &fVecHeader[0].fRunNumber);
            fDimRunNumber.Update(run);
        }

        if (old.fTriggerGeneratorPrescaler != h.fTriggerGeneratorPrescaler || changed)
        {
            const array<uint16_t,42> pre = Compare(&fVecHeader[0], &fVecHeader[0].fTriggerGeneratorPrescaler);
            fDimPrescaler.Update(pre);
        }

        if (old.fDNA != h.fDNA || changed)
        {
            const array<uint64_t,42> dna = Compare(&fVecHeader[0], &fVecHeader[0].fDNA);
            Update(fDimDNA, dna, 40);
        }

        if (old.fStatus != h.fStatus || changed)
        {
            const array<uint16_t,42> sts = CompareBits(&fVecHeader[0], &fVecHeader[0].fStatus);
            Update(fDimStatus, sts);
        }

        if (memcmp(old.fDac, h.fDac, sizeof(h.fDac)) || changed)
        {
            array<uint16_t, FAD::kNumDac*42> dacs;

            for (int i=0; i<FAD::kNumDac; i++)
            {
                const array<uint16_t, 42> dac = Compare(&fVecHeader[0], &fVecHeader[0].fDac[i]);
                memcpy(&dacs[i*42], &dac[0], sizeof(uint16_t)*42);
            }

            Update(fDimDac, dacs);
        }

        // -----------

        static Time oldt(boost::date_time::neg_infin);
        Time newt;

        if (newt>oldt+boost::posix_time::seconds(1))
        {
            oldt = newt;

            // --- RefClock

            const array<uint32_t,42> clk = Compare(&fVecHeader[0], &fVecHeader[0].fFreqRefClock);
            Update(fDimRefClock, clk);

            // --- Temperatures

            const array<int16_t,42> tmp[4] =
            {
                Compare(&fVecHeader[0], &fVecHeader[0].fTempDrs[0]),    // 0-39:val, 40:min, 41:max
                Compare(&fVecHeader[0], &fVecHeader[0].fTempDrs[1]),    // 0-39:val, 40:min, 41:max
                Compare(&fVecHeader[0], &fVecHeader[0].fTempDrs[2]),    // 0-39:val, 40:min, 41:max
                Compare(&fVecHeader[0], &fVecHeader[0].fTempDrs[3])     // 0-39:val, 40:min, 41:max
            };

            vector<int16_t> data;
            data.reserve(82);
            data.push_back(tmp[0][40]);                                 // min: 0
            data.insert(data.end(), tmp[0].data(), tmp[0].data()+40);   // val: 1-40
            data.push_back(tmp[0][41]);                                 // max: 41
            data.insert(data.end(), tmp[0].data(), tmp[0].data()+40);   // val: 42-81

            for (int j=1; j<=3; j++)
            {
                const array<int16_t,42> &ref = tmp[j];

                // Gloabl min
                if (ref[40]<data[0])           // 40=min
                    data[0] = ref[40];

                // Global max
                if (ref[41]>data[41])          // 41=max
                    data[41] = ref[41];

                for (int i=0; i<40; i++)
                {
                    // min per board
                    if (ref[i]<data[i+1])      // data:  1-40
                        data[i+1] = ref[i];    // ref:   0-39

                    // max per board
                    if (ref[i]>data[i+42])     // data: 42-81
                        data[i+42] = ref[i];   // ref:   0-39
                }


           }

            vector<float> deg(82);              //  0: global min,  1-40: min
            for (int i=0; i<82; i++)            // 41: global max, 42-81: max
                deg[i] = data[i]/16.;
            fDimTemperature.Update(deg);
        }
    }
};

EventBuilderWrapper *EventBuilderWrapper::This = 0;

// ----------- Event builder callbacks implementation ---------------
extern "C"
{
    FileHandle_t runOpen(uint32_t irun, RUN_HEAD *runhd, size_t len)
    {
        return EventBuilderWrapper::This->runOpen(irun, runhd, len);
    }

    int runWrite(FileHandle_t fileId, EVENT *event, size_t len)
    {
        return EventBuilderWrapper::This->runWrite(fileId, event, len);
    }

    int runClose(FileHandle_t fileId, RUN_TAIL *runth, size_t len)
    {
        return EventBuilderWrapper::This->runClose(fileId, runth, len);
    }

    // -----

    //void *runStart(uint32_t /*irun*/, RUN_HEAD */*runhd*/, size_t /*len*/)
    //{
    //    return NULL;
    //}

    int subProcEvt(int threadID, PEVNT_HEADER *fadhd, EVENT *event, int16_t mboard, void *runPtr)
    {
        return EventBuilderWrapper::This->subProcEvt(threadID, fadhd, event, mboard, runPtr);
    }

    int runEnd(uint32_t, void */*runPtr*/)
    {
        return 0;
    }

    // -----

    int eventCheck(uint32_t runNr, PEVNT_HEADER *fadhd, EVENT *event, int mboard)
    {
        return EventBuilderWrapper::This->eventCheck(runNr, fadhd, event, mboard);
    }

    void gotNewRun(uint32_t runnr, PEVNT_HEADER *headers)
    {
        return EventBuilderWrapper::This->gotNewRun(runnr, headers);
    }

    // -----

    void factOut(int severity, int err, const char *message)
    {
        EventBuilderWrapper::This->factOut(severity, err, message);
    }

    void factStat(GUI_STAT stat)
    {
        EventBuilderWrapper::This->factStat(stat);
    }

    void factStatNew(EVT_STAT stat)
    {
        EventBuilderWrapper::This->factStat(stat);
    }

    // ------

    void debugHead(int socket, int/*board*/, void *buf)
    {
        const FAD::EventHeader &h = *reinterpret_cast<FAD::EventHeader*>(buf);
        EventBuilderWrapper::This->debugHead(socket, h);
    }

    void debugStream(int isock, void *buf, int len)
    {
        return EventBuilderWrapper::This->debugStream(isock, buf, len);
    }

    void debugRead(int isock, int ibyte, int32_t event, int32_t ftmevt, int32_t runno, int state, uint32_t tsec, uint32_t tusec)
    {
        EventBuilderWrapper::This->debugRead(isock, ibyte, event, ftmevt, runno, state, tsec, tusec);
    }
}

#endif