Aggiornamento MQL4 600 & Named Pipes

 

Salve,

Dopo questo recente aggiornamento, ora non sono in grado di catturare il conteggio delle chiamate da un'istanza del mio terminale MT4 per trasmetterlo ad un altro MT4. Potete dirmi cosa è cambiato nell'aggiornamento che causa questo problema? Di seguito è riportato il codice che continua a funzionare bene con la build 509 ma non dopo questo recente aggiornamento.


extern string PipeName = "MetaTerminal1";

extern int SuspendSeconds = 10;

extern int SleepMS = 10;







#define  PIPE_BASE_NAME "\\\\.\\pipe\\mt4-"



#define  GENERIC_READ 0x80000000

#define  GENERIC_WRITE 0x40000000

#define  PIPE_ACCESS_DUPLEX 3

#define  PIPE_UNLIMITED_INSTANCES 255

#define  PIPE_NOWAIT 1

#define  PIPE_TYPE_MESSAGE 4

#define  PIPE_READMODE_MESSAGE 2

#define  PIPE_WAIT 0



#import "kernel32.dll"

int CreateNamedPipeA(string pipeName,int openMode,int pipeMode,int maxInstances,int outBufferSize,int inBufferSize,int defaultTimeOut,int security);

int PeekNamedPipe(int PipeHandle, int PassAsZero, int PassAsZero2, int PassAsZero3, int & BytesAvailable[], int PassAsZero4);

int CreateFileA(string Filename, int AccessMode, int ShareMode, int PassAsZero, int CreationMode, int FlagsAndAttributes, int AlsoPassAsZero);

int CloseHandle(int fileHandle);

// int ReadFile(int FileHandle, int BufferPtr, int BufferLength, int & BytesRead[], int PassAsZero);

        int ReadFile(int FileHandle, int& inBuffer[],int BufferLength, int& BytesRead[], int lpOverlapped);

int WriteFile(int FileHandle, string Buffer, int BufferLength, int & BytesWritten[], int PassAsZero);

//      int WriteFile(int FileHandle,int& inBuffer[], int NumberOfBytesToWrite, int& bytesWritten[], int lpOverlapped);

int MulDiv(string X, int N1, int N2);

#import



// Number of pipe instances to create by default. This value can overridden by the optional parameter to

// CreatePipeServer(). The number of instances is in effect the maximum number of messages which

// can be sent to the server between each call which the server makes to CheckForPipeMessages().

// If more messages than this are sent, the extra messages will fail and the sender(s) will need to retry.

#define  DEFAULT_MAX_PIPES 200



// Number of pipe instances to allocate. Defaults to DEFAULT_MAX_PIPES unless it is overridden

int glbPipeCount = DEFAULT_MAX_PIPES;

// Array of pipe handles allocated by CreatePipeServer()

int glbPipe[DEFAULT_MAX_PIPES];

// Persistent storage of the pipe name passed as a parameter to CreatePipeServer()

string glbPipeName;



// Starts the pipe server by creating n instances of the pipe

void CreatePipeServer(string PipeName, int UsePipeInstances = DEFAULT_MAX_PIPES)

{

// Store the number of pipe instances to use and resize the array accordinging

glbPipeCount = UsePipeInstances;

ArrayResize(glbPipe, glbPipeCount);

// Store the name to use for the pipe instances

glbPipeName = PipeName;

// Create the pipe instances

for (int i = 0; i < glbPipeCount; i++)

glbPipe[i] = CreatePipeInstance();

return;

}



// Closes all the resources used by the pipe server: i.e. closes all the pipe instances

void DestroyPipeServer()

{

for (int i = 0; i < glbPipeCount; i++)

CloseHandle(glbPipe[i]);

return;

}



// Service function which creates a pipe instance

int CreatePipeInstance()

{

string strPipeName = StringConcatenate(PIPE_BASE_NAME, glbPipeName);

return (CreateNamedPipeA(strPipeName, GENERIC_READ | PIPE_ACCESS_DUPLEX, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_NOWAIT, PIPE_UNLIMITED_INSTANCES, 1000, 1000, 0, NULL));

}

datetime StartTime=0;

int brCall=0;



int aPairCount=0;

string aPair[1000];

int aDigit[1000];

datetime aLastSinhTime[1000];

double aBid[1000];

double aAsk[1000];



int init()

{

StartTime=TimeLocal();

brCall=0;

aPairCount=0;



// Create the server

CreatePipeServer(PipeName);

return(0);

}



int deinit()

{

// Destroy the pipe server

DestroyPipeServer();

Comment("");

return(0);

}



int start()

{

while(!IsStopped() && IsConnected())    

{

for(int i = 0; i < glbPipeCount; i++)

CheckPipe(i);

Comment("\nStart Time: "+TimeToStr(StartTime,TIME_DATE|TIME_SECONDS)+

"\nLocal Time: "+TimeToStr(TimeLocal(),TIME_DATE|TIME_SECONDS)+

"\nCall Count: "+DoubleToStr(brCall,0)

);

Sleep(MathMax(SleepMS,10));

}

return(0);

}



bool CheckPipe(int PipeIndex)

{

bool Result=false;

string sMsg = "";

// See if there's data available on the pipe

int BytesAvailable[1] = {0};

int res = PeekNamedPipe(glbPipe[PipeIndex], 0, 0, 0, BytesAvailable, 0);

if (res != 0) {

// PeekNamedPipe() succeeded



// Is there data?

if (BytesAvailable[0] != 0) {

Result=true;



// Keep reading until either we have all the data, or an error occurs

int TotalBytesRead = 0;

while (TotalBytesRead < BytesAvailable[0])

{

string ReadBuffer="";

int iBuffer[256];

int BytesRead[1] = {0};

ReadFile(glbPipe[PipeIndex],iBuffer,4*ArraySize(iBuffer),BytesRead,NULL);

for(int i=0; i<BytesRead[0]; i++)

ReadBuffer = ReadBuffer + CharToStr( (iBuffer[i/4] >> ((i & 3)*8)) & 0xff);

// Did we get any data from the read?

if(BytesRead[0] > 0)

{

// Yes, got some data. Add it to the total message which is passed back

sMsg = StringConcatenate(sMsg, StringSubstr(ReadBuffer, 0, BytesRead[0]));

TotalBytesRead += BytesRead[0];

}

else

{

// No, the read failed. Stop reading, and pass back an empty string

sMsg = "";

TotalBytesRead = 999999;

}

}

if(StringLen(sMsg)>0)

{

string outString="n/a";

RefreshRates();

brCall=brCall+1;

double pBid=MarketInfo(sMsg,MODE_BID);

double pAsk=MarketInfo(sMsg,MODE_ASK);

if(pBid>0.0001 && pAsk>0.0001)

{

int ai=0;

bool fl=true;

for(i=1;i<=aPairCount;i++)

if(aPair[i]==sMsg)

{

ai=i;

break;

}

if(ai==0)

{

aPairCount=aPairCount+1;

ai=aPairCount;

aPair[ai]=sMsg;

aDigit[ai]=MarketInfo(sMsg,MODE_DIGITS);

aLastSinhTime[ai]=TimeLocal();

aBid[ai]=pBid;

aAsk[ai]=pAsk;

}

else

if(MathAbs(aBid[ai]-pBid)>=0.00001 || MathAbs(aAsk[ai]-pAsk)>=0.00001)

{

aLastSinhTime[ai]=TimeLocal();

aBid[ai]=pBid;

aAsk[ai]=pAsk;

}

else

if(TimeLocal()-aLastSinhTime[ai]>SuspendSeconds)

fl=false;

if(fl)

outString=DoubleToStr(aBid[ai],aDigit[ai])+"|"+DoubleToStr(aAsk[ai],aDigit[ai]);

else

outString="Suspended";

}



int bytesWritten[1];

bool fSuccess=WriteFile(glbPipe[PipeIndex],outString,StringLen(outString)+1,bytesWritten,NULL) != 0;

if(!fSuccess || bytesWritten[0] != StringLen(outString)+1)

{

Sleep(10);

}

}

// Destroy and recreate the pipe instance

CloseHandle(glbPipe[PipeIndex]);

glbPipe[PipeIndex] = CreatePipeInstance();

} else {

// No data available on pipe

}

} else {

// PeekNamedPipe() failed

}

return(Result);

}
 

Usate il tasto SRC per inserire il codice, altrimenti i moderatori lo cancelleranno!

Inoltre, leggete i molti altri thread che hanno menzionato che le funzioni "A" non sono più supportate e dovrete usare le versioni "W" Wide delle funzioni come "CreateNamedPipeW" invece di "CreateNamedPipeA".

 
sksyen:

Grazie per aver risposto e le mie scuse per non aver incollato l'SRC come file.

Per quanto riguarda la tua risposta, questo significa che ho semplicemente bisogno di cambiare il riferimento ai tubi denominati "A" in un "W" invece? Ho provato a cercare alcuni thread riguardanti questo, ma non sono riuscito a trovare - il tuo aiuto è molto apprezzato. Grazie ancora.

Non si tratta di incollare il sorgente come file, ma di usare lo strumento SRC per mettere il codice qui sul forum. Come utilizzare il pulsante SRC. (fornito da "RaptorUK")

Qui ci sono un paio di riferimenti a dilemmi simili con la versione Wide di Functions:

 

Grazie. Il lato server ora è in grado di catturare il conteggio delle chiamate dopo aver aggiornato i tubi denominati "A" a "W". Tuttavia, dall'altra istanza dell'MT4, sembra avere problemi a ricevere l'input di informazioni. Ho aggiornato il nome dei tubi a "W" sul lato ricevente, ma ancora non riesce a tirare i dati per qualche motivo. Qualche idea? Vedi sotto per il codice sul lato di ricezione:

extern double MaxDD          = 30;
extern double MM             = 30;

extern string PipeName       = "Terminal";
extern string ServerPairName = "";
extern double BidCorrection  = 0;
extern double AskCorrection  = 0;

extern int    APips     = 2;
extern int    TPips     = 5;
extern int    StopPips       = 15;
extern int    VirtualStops   = false;

extern int    ConfirmMS     = 20;
extern int    SleepMS       = 20;
extern int    Slippage      = 1;    
extern int    Magic         = 2013; 


#define  PIPE_BASE_NAME     "\\\\.\\pipe\\mt4-"     // MUST tally with client code
#define  ERROR_MORE_DATA 234

#import "kernel32.dll"
        int CallNamedPipeW(string PipeName, string outBuffer, int outBufferSz, int& inBuffer[], int inBufferSz, int& bytesRead[], int timeOut);
#import


datetime StartTime=0;
double   MinLots=0.1;
double   MaxLots=0.1;
double   LotStep=0.1;
double   MyPoint=0.0001;

string   MasterPair="";
double   MaxBalance=0;
double   TotalPips=0;
int      TotalTrades=0;
double   EntrySlippage=0;
int      EntryMS=0;
int      OpenErrors=0;


int      LastTicket=0;
double   MasterBid=0;
double   MasterAsk=0;

string   LastQ="";
           
int init()
  {
   Comment("Initialization ...");
   if(StringLen(ServerPairName)>=1)
      MasterPair=ServerPairName;
   else
      MasterPair=Symbol();

   StartTime=0;
   return(0);
  }

int deinit()
  {
   Comment("");
   return(0);
  }

int start()
  {
   double CurrentPips=0;
   string sInfo="";
   if(IsStopped() || !IsConnected())
      return(0);

   if(Digits<=3)
      MyPoint=0.01;
   MinLots=MarketInfo(Symbol(),MODE_MINLOT);
   MaxLots=MarketInfo(Symbol(),MODE_MAXLOT);
   LotStep=MarketInfo(Symbol(),MODE_LOTSTEP);

   if(StartTime<=0)
     {
      MaxBalance=AccountBalance();
      StartTime=TimeLocal();
      TotalPips=0;
      EntrySlippage=0;
      TotalTrades=0;
      EntryMS=0;
      LastTicket=0;
      OpenErrors=0;
     }

   while(!IsStopped())  
     {
      RefreshRates();
      double dBid=Bid;
      double dAsk=Ask;
      int OldTicket=LastTicket;
      LastTicket=0;
      for(int j=OrdersTotal()-1; j>=0; j--) 
          if(OrderSelect(j, SELECT_BY_POS, MODE_TRADES))
            if((OrderSymbol() == Symbol()) && (OrderMagicNumber() == Magic))
              {
               if(OrderType()==OP_BUY)
                  CurrentPips=dBid-OrderOpenPrice();
               else
                  CurrentPips=OrderOpenPrice()-dAsk;
               CurrentPips=CurrentPips/MyPoint;
               LastTicket=OrderTicket();
          

              }

      if(LastTicket==0 && OldTicket>0)
         if(OrderSelect(OldTicket, SELECT_BY_TICKET, MODE_HISTORY))
           {
            if(OrderType()==OP_BUY)
               TotalPips=TotalPips+(OrderClosePrice()-OrderOpenPrice())/MyPoint;
            else
               TotalPips=TotalPips+(OrderOpenPrice()-OrderClosePrice())/MyPoint;
           }

      MaxBalance=MathMax(MaxBalance,AccountBalance());
      if(AccountBalance()<=0)
         break;
      sInfo="";
      CheckMaster();
      if(MaxDD<=100*(MaxBalance-AccountBalance())/MaxBalance)
         sInfo=sInfo+"\nMaximum Drawdawn Reached !!!";
      else   
      if(MasterBid>=Point && MasterAsk>=Point)
         sInfo=sInfo+"\nBuy/Sell Levels: "+DoubleToStr((MasterBid-dAsk)/MyPoint-APips,1)+" / "+DoubleToStr((dBid-MasterAsk)/MyPoint-APips,1)+" pips";
      else
      if(StringLen(LastQ)>0)
         sInfo=sInfo+"\nServer: "+LastQ;
      else
         sInfo=sInfo+"\nServer not working !!!";

      if(LastTicket>0)
         sInfo=sInfo+", Position: "+DoubleToStr(CurrentPips,1)+" pips";
      else
      if(MasterBid>=Point && MasterAsk>=Point && MaxDD>100*(MaxBalance-AccountBalance())/MaxBalance)
        {
         bool Oper=-1;
         if((dAsk)>=1.0000)
            Oper=OP_BUY;
         else
         if((dBid)>=1.0000)
            Oper=OP_SELL;
         if(Oper!=-1 && ConfirmMS>0)
           {
            Sleep(ConfirmMS);
            RefreshRates();
            dBid=Bid;
            dAsk=Ask;
            CheckMaster();
            if(Oper==OP_BUY)
               Oper=-1;
            if(Oper==OP_SELL)
               Oper=-1;
           }
         if(Oper!=-1 && IsTradeContextBusy()==false)
           {
            double Lots=MathMax(MinLots,MathMin(MaxLots,MathCeil((MM/100)*AccountFreeMargin()/LotStep/(100000/100))*LotStep));
            int ExecutionTime=GetTickCount();
            if(Oper==OP_BUY)
               LastTicket=OrderSend(Symbol(), OP_BUY, Lots, NormalizeDouble(dAsk,Digits), Slippage*MyPoint/Point, 0, 0, "", Magic,0,Blue);
            else   
               LastTicket=OrderSend(Symbol(), OP_SELL, Lots, NormalizeDouble(dBid,Digits), Slippage*MyPoint/Point, 0, 0, "", Magic,0,Red);
            ExecutionTime=GetTickCount()-ExecutionTime;   
            if(LastTicket<0)
              {
               OpenErrors=OpenErrors+1;
              }
            else
              {
               TotalTrades=TotalTrades+1;
               EntryMS=EntryMS+ExecutionTime;
               if(OrderSelect(LastTicket,SELECT_BY_TICKET))
                  if(OrderType()==OP_BUY)
                     EntrySlippage=EntrySlippage+(dAsk-OrderOpenPrice())/MyPoint;
                  else   
                     EntrySlippage=EntrySlippage+(OrderOpenPrice()-dBid)/MyPoint;
              }
           }
        }

      Comment("\nMagic# "+DoubleToStr(Magic,0)+", MM "+DoubleToStr(MM,2)+ ", Max DD: " + DoubleToStr(MaxDD,1)+"%, Current Drawdawn: "+DoubleToStr(100*(MaxBalance-AccountBalance())/MaxBalance,1)+" %"+
              "\nMin Lot "+DoubleToStr(MinLots,2)+", Max Lot "+DoubleToStr(MaxLots,2)+", Lot Step "+DoubleToStr(LotStep,2)+", Stop Level "+DoubleToStr(MarketInfo(Symbol(),MODE_STOPLEVEL)*Point/MyPoint,1)+" pips"+
              "\n"+sInfo+
              "\nStart Time: "+TimeToStr(StartTime,TIME_DATE|TIME_SECONDS)+
              "\nLocal Time: "+TimeToStr(TimeLocal(),TIME_DATE|TIME_SECONDS)+
              "\nTotal Pips: "+DoubleToStr(TotalPips,1)+
              "\nTotal Trades: "+DoubleToStr(TotalTrades,0)+
              "\nEntry Errors: "+DoubleToStr(OpenErrors,0)+
              "\nOpen Slippage: "+DoubleToStr(EntrySlippage,1)+" pips"+
              "\nAverage Speed: "+DoubleToStr(EntryMS/MathMax(TotalTrades,1),0)+" ms"+
              "\nAverage Slippage: "+DoubleToStr(EntrySlippage/MathMax(TotalTrades,1),1)+" pips"
             );
      Sleep(MathMax(SleepMS,10));
      if(IsTesting())
         break;
     }
   return(0);
  }

void CheckMaster()
  {
   MasterBid=0;
   MasterAsk=0;
   LastQ="";
   if(IsTesting())
     {
      MasterBid=NormalizeDouble(MarketInfo(MasterPair,MODE_BID)/2+MarketInfo(MasterPair,MODE_ASK)/2-MyPoint+2*MyPoint*(MathRand()-32767/2)/(32767/6),Digits);
      MasterAsk=MasterBid+2*MyPoint;
     }
   else
     {
      string MyPipeName = PIPE_BASE_NAME+PipeName;
      int inBuffer[2048];
      int bytesRead[1];
      string extMessage = MasterPair;
      bool fSuccess = CallNamedPipeW(MyPipeName,extMessage,StringLen(extMessage)+1,inBuffer,4*ArraySize(inBuffer),bytesRead,0) != 0;
      int lastError = GetLastError();
      if(fSuccess/* || lastError == ERROR_MORE_DATA*/) 
        { 
         string inString = "";
         for(int i=0; i<bytesRead[0]; i++)
             inString = inString + CharToStr( (inBuffer[i/4] >> ((i & 3)*8)) & 0xff);
         int ai=StringFind(inString, "|", 0);
         if(ai>0)
           {
            MasterBid=StrToDouble(StringSubstr(inString, 0, ai));
            MasterAsk=StrToDouble(StringSubstr(inString, ai+1));
           }
         LastQ=inString;  
        }
     }
   if(MasterBid>0.0001)
      MasterBid=MasterBid+BidCorrection;
   if(MasterAsk>0.0001)
      MasterAsk=MasterAsk+AskCorrection;
  }
 
Solo come preavviso, ho cambiato il codice per chiamare MetaTerminal1 nella stringa extern PipeName ma i dati e le funzioni ancora non funzionano correttamente. C'era qualcos'altro nel codice che doveva essere aggiustato a parte cambiare la 'A' in 'W' per 'CreateNamedPip' e 'CreateFile'?
 

Cambiare "A" in "W" potrebbe sembrare troppo facile. Potrebbero esserci anche altri fattori relativi ai cambiamenti nella nuova architettura e alle funzioni Unicode che devono essere affrontati.

Comunque, non so se questo è un bug o no, perché non ho mai usato Named Pipes con MT4, ma il tuo "inBuffer" e "outBuffer" (in "CallNamedPipeW") sono di tipo diverso (uno è "string" e l'altro è "int"). Questo non sembra essere corretto.

In realtà, potrebbe essere totalmente corretto, dati gli strani trucchi di MetaTrader per realizzare l'interazione con le DLL.

Lascerò questa parte a qualcuno che è più esperto nell'interfacciamento tra MT4 e DLL.

 
"sksyen", potresti cambiare il tuo post originale per avere il codice in una sezione SRC. Se uno dei moderatori va su questo, cancelleranno quella parte del post e ti chiederanno di farlo comunque in modo corretto. Quindi, fallo ora prima di dover andare di nuovo a caccia del codice per incollarlo.
 

Sto anche avendo problemi con i named pipe nell'ultima versione di MT4

Ho cambiato WaitNamedPipeA in WaitNamedPipeW e ora funziona

f (!WaitNamedPipeW( FullPipeName, 1))

{
Comment(TimeToStr(TimeLocal(), TIME_DATE|TIME_MINUTES|TIME_SECONDS) + " " + PipeName + " not available"); 
Sleep(1000);
continue;
}


ma quando uso CreateFileA o CreateFileW, entrambe le chiamate si bloccano definitivamente


PipeHandle = CreateFileA(FullPipeName, GenericRead, 0, NULL, OPEN_EXISTING, 0, NULL);


Qualche idea / soluzione?

 
chalky66:

Sto anche avendo problemi con i named pipe nell'ultima versione di MT4

Ho cambiato WaitNamedPipeA in WaitNamedPipeW e ora funziona

Ricordati di usare il pulsante SRC in futuro.
 

Ecco il file Server postato originariamente (mi ricorderò di postarlo in SRC la prossima volta)

extern string PipeName = "MetaTerminal1";

extern int SuspendSeconds = 10;

extern int SleepMS = 10;







#define  PIPE_BASE_NAME "\\\\.\\pipe\\mt4-"



#define  GENERIC_READ 0x80000000

#define  GENERIC_WRITE 0x40000000

#define  PIPE_ACCESS_DUPLEX 3

#define  PIPE_UNLIMITED_INSTANCES 255

#define  PIPE_NOWAIT 1

#define  PIPE_TYPE_MESSAGE 4

#define  PIPE_READMODE_MESSAGE 2

#define  PIPE_WAIT 0



#import "kernel32.dll"

int CreateNamedPipeA(string pipeName,int openMode,int pipeMode,int maxInstances,int outBufferSize,int inBufferSize,int defaultTimeOut,int security);

int PeekNamedPipe(int PipeHandle, int PassAsZero, int PassAsZero2, int PassAsZero3, int & BytesAvailable[], int PassAsZero4);

int CreateFileA(string Filename, int AccessMode, int ShareMode, int PassAsZero, int CreationMode, int FlagsAndAttributes, int AlsoPassAsZero);

int CloseHandle(int fileHandle);

// int ReadFile(int FileHandle, int BufferPtr, int BufferLength, int & BytesRead[], int PassAsZero);

        int ReadFile(int FileHandle, int& inBuffer[],int BufferLength, int& BytesRead[], int lpOverlapped);

int WriteFile(int FileHandle, string Buffer, int BufferLength, int & BytesWritten[], int PassAsZero);

//      int WriteFile(int FileHandle,int& inBuffer[], int NumberOfBytesToWrite, int& bytesWritten[], int lpOverlapped);

int MulDiv(string X, int N1, int N2);

#import



// Number of pipe instances to create by default. This value can overridden by the optional parameter to

// CreatePipeServer(). The number of instances is in effect the maximum number of messages which

// can be sent to the server between each call which the server makes to CheckForPipeMessages().

// If more messages than this are sent, the extra messages will fail and the sender(s) will need to retry.

#define  DEFAULT_MAX_PIPES 200



// Number of pipe instances to allocate. Defaults to DEFAULT_MAX_PIPES unless it is overridden

int glbPipeCount = DEFAULT_MAX_PIPES;

// Array of pipe handles allocated by CreatePipeServer()

int glbPipe[DEFAULT_MAX_PIPES];

// Persistent storage of the pipe name passed as a parameter to CreatePipeServer()

string glbPipeName;



// Starts the pipe server by creating n instances of the pipe

void CreatePipeServer(string PipeName, int UsePipeInstances = DEFAULT_MAX_PIPES)

{

// Store the number of pipe instances to use and resize the array accordinging

glbPipeCount = UsePipeInstances;

ArrayResize(glbPipe, glbPipeCount);

// Store the name to use for the pipe instances

glbPipeName = PipeName;

// Create the pipe instances

for (int i = 0; i < glbPipeCount; i++)

glbPipe[i] = CreatePipeInstance();

return;

}



// Closes all the resources used by the pipe server: i.e. closes all the pipe instances

void DestroyPipeServer()

{

for (int i = 0; i < glbPipeCount; i++)

CloseHandle(glbPipe[i]);

return;

}



// Service function which creates a pipe instance

int CreatePipeInstance()

{

string strPipeName = StringConcatenate(PIPE_BASE_NAME, glbPipeName);

return (CreateNamedPipeA(strPipeName, GENERIC_READ | PIPE_ACCESS_DUPLEX, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_NOWAIT, PIPE_UNLIMITED_INSTANCES, 1000, 1000, 0, NULL));

}

datetime StartTime=0;

int brCall=0;



int aPairCount=0;

string aPair[1000];

int aDigit[1000];

datetime aLastSinhTime[1000];

double aBid[1000];

double aAsk[1000];



int init()

{

StartTime=TimeLocal();

brCall=0;

aPairCount=0;



// Create the server

CreatePipeServer(PipeName);

return(0);

}



int deinit()

{

// Destroy the pipe server

DestroyPipeServer();

Comment("");

return(0);

}



int start()

{

while(!IsStopped() && IsConnected())    

{

for(int i = 0; i < glbPipeCount; i++)

CheckPipe(i);

Comment("\nStart Time: "+TimeToStr(StartTime,TIME_DATE|TIME_SECONDS)+

"\nLocal Time: "+TimeToStr(TimeLocal(),TIME_DATE|TIME_SECONDS)+

"\nCall Count: "+DoubleToStr(brCall,0)

);

Sleep(MathMax(SleepMS,10));

}

return(0);

}



bool CheckPipe(int PipeIndex)

{

bool Result=false;

string sMsg = "";

// See if there's data available on the pipe

int BytesAvailable[1] = {0};

int res = PeekNamedPipe(glbPipe[PipeIndex], 0, 0, 0, BytesAvailable, 0);

if (res != 0) {

// PeekNamedPipe() succeeded



// Is there data?

if (BytesAvailable[0] != 0) {

Result=true;



// Keep reading until either we have all the data, or an error occurs

int TotalBytesRead = 0;

while (TotalBytesRead < BytesAvailable[0])

{

string ReadBuffer="";

int iBuffer[256];

int BytesRead[1] = {0};

ReadFile(glbPipe[PipeIndex],iBuffer,4*ArraySize(iBuffer),BytesRead,NULL);

for(int i=0; i<BytesRead[0]; i++)

ReadBuffer = ReadBuffer + CharToStr( (iBuffer[i/4] >> ((i & 3)*8)) & 0xff);

// Did we get any data from the read?

if(BytesRead[0] > 0)

{

// Yes, got some data. Add it to the total message which is passed back

sMsg = StringConcatenate(sMsg, StringSubstr(ReadBuffer, 0, BytesRead[0]));

TotalBytesRead += BytesRead[0];

}

else

{

// No, the read failed. Stop reading, and pass back an empty string

sMsg = "";

TotalBytesRead = 999999;

}

}

if(StringLen(sMsg)>0)

{

string outString="n/a";

RefreshRates();

brCall=brCall+1;

double pBid=MarketInfo(sMsg,MODE_BID);

double pAsk=MarketInfo(sMsg,MODE_ASK);

if(pBid>0.0001 && pAsk>0.0001)

{

int ai=0;

bool fl=true;

for(i=1;i<=aPairCount;i++)

if(aPair[i]==sMsg)

{

ai=i;

break;

}

if(ai==0)

{

aPairCount=aPairCount+1;

ai=aPairCount;

aPair[ai]=sMsg;

aDigit[ai]=MarketInfo(sMsg,MODE_DIGITS);

aLastSinhTime[ai]=TimeLocal();

aBid[ai]=pBid;

aAsk[ai]=pAsk;

}

else

if(MathAbs(aBid[ai]-pBid)>=0.00001 || MathAbs(aAsk[ai]-pAsk)>=0.00001)

{

aLastSinhTime[ai]=TimeLocal();

aBid[ai]=pBid;

aAsk[ai]=pAsk;

}

else

if(TimeLocal()-aLastSinhTime[ai]>SuspendSeconds)

fl=false;

if(fl)

outString=DoubleToStr(aBid[ai],aDigit[ai])+"|"+DoubleToStr(aAsk[ai],aDigit[ai]);

else

outString="Suspended";

}



int bytesWritten[1];

bool fSuccess=WriteFile(glbPipe[PipeIndex],outString,StringLen(outString)+1,bytesWritten,NULL) != 0;

if(!fSuccess || bytesWritten[0] != StringLen(outString)+1)

{

Sleep(10);

}

}

// Destroy and recreate the pipe instance

CloseHandle(glbPipe[PipeIndex]);

glbPipe[PipeIndex] = CreatePipeInstance();

} else {

// No data available on pipe

}

} else {

// PeekNamedPipe() failed

}

return(Result);

}
 
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