Pipe OrderSend - Undeclared Identifier

JD05 2016.10.13 19:14

Good Day,

Just enquiring upon writing the code, the following errors pops out, "',' - unexpected token, cmd-some operator expected and OrderSend - undeclared identifier.

Code is as;

#define PIPE_TYPE_MESSAGE                       4
#define PIPE_READMODE_MESSAGE           2
#define PIPE_WAIT                                       0
#define PIPE_ACCESS_DUPLEX              3
#define PIPE_UNLIMITED_INSTANCES        255
#define NMPWAIT_USE_DEFAULT_WAIT        0
#define INVALID_HANDLE_VALUE            -1
#define ERROR_PIPE_CONNECTED            535

#import "kernel32.dll"
        int CreateNamedPipeA(uchar& PipeName[],int dwOpenMode,int dwPipeMode,int nMaxInstances,int nOutBufferSize,int nInBufferSize,int nDefaultTimeOut,int lpSecurityAttributes);
        int ConnectNamedPipe(int hPipe,int lpOverlapped);
        int ReadFile(int hPipe, uchar& inBuffer[],int NumberOfBytesToRead, int& bytesRead[], int lpOverlapped);
        int WriteFile(int hPipe, uchar& outBuffer[], int NumberOfBytesToWrite, int& bytesWritten[], int lpOverlapped);
        int FlushFileBuffers(int hPipe);
        int DisconnectNamedPipe(int hPipe);
        int CloseHandle(int hPipe);
#import

string lastMessage="";
extern string Pipe = "Pipe1";

int start()
{
        uchar pipeName[];
        ArrayResize(pipeName, StringLen("\\\\.\\pipe\\"+Pipe));
        StringToCharArray("\\\\.\\pipe\\"+Pipe, pipeName);
        
        int PipeMode = PIPE_TYPE_MESSAGE|PIPE_READMODE_MESSAGE|PIPE_WAIT;
        int hPipe = CreateNamedPipeA(pipeName,PIPE_ACCESS_DUPLEX,PipeMode,PIPE_UNLIMITED_INSTANCES,1024,1024,NMPWAIT_USE_DEFAULT_WAIT,NULL);
        if (hPipe == INVALID_HANDLE_VALUE) {
                Alert("CreateNamedPipe failed");
        return (-1);
        }
        while(!IsStopped())     {

                Comment("Pipe server ready ...\nSend \"STOP\" to stop server\n",lastMessage);
                bool fConnected = ConnectNamedPipe(hPipe, NULL) != 0;
                if(!fConnected)
                        fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
                        
                if (fConnected) {
                        uchar inBuffer[512];
                        int bytesRead[1];
                        bool fSuccess = ReadFile(hPipe,inBuffer,ArraySize(inBuffer),bytesRead,NULL) !=0;
                        if (!fSuccess || (bytesRead[0] == 0)) break;
                        string inString = CharArrayToString(inBuffer, 0, bytesRead[0]);
                        lastMessage = "Last message from client: "+inString;
                        string outString = "Received ["+inString+"]";
                        uchar outBuffer[];
                        ArrayResize(outBuffer, StringLen(outString)+1);
                        StringToCharArray(outString, outBuffer);
                        int bytesWritten[1];
                        fSuccess = WriteFile(hPipe,outBuffer,ArraySize(outBuffer),bytesWritten,NULL) != 0;
                        if (! fSuccess || bytesWritten[0] != StringLen(outString)+1) break;
                        if(inString=="STOP") {
                                Comment("Pipe server stopped.");
                                FlushFileBuffers(hPipe);
                                DisconnectNamedPipe(hPipe);
                                CloseHandle(hPipe);                             
                                return(0);
                        }                       
                        
                        string Symbol = StringSubstr(0,6);

         int cmd = StrToInteger(StringSubstr(8,1));
         //int cmd = StrToInteger(ordertype.c_str());

         double Volume = StrToDouble(StringSubstr(10,3));
         //double Volume = StrToDouble(Vol.c_str());

         double Price = StrToDouble(StringSubstr(13,2));
        // double Price = StrToDouble(pr.c_str());

         int Slippage = StrToInteger(StringSubstr(16,1));
         //int Slippage = StrToInteger(slp.c_str());

         double StopLoss = StrToDouble(StringSubstr(18,7));
         //double Stoploss = StrToDouble(stl.c_str());

         double TakeProfit = StrToDouble(StringSubstr(25,7));
        //double TakeProfit = StrToDouble(tp.c_str());

         string Comment = StringSubstr(33,4);
                        
                        OrderSend =(Symbol,cmd,Volume,Price,Slippage,StopLoss,TakeProfit);
                        
                }
                FlushFileBuffers(hPipe);
                DisconnectNamedPipe(hPipe);
        }       
        CloseHandle(hPipe);                     
        return(0);

Omar Alkassar 2016.10.13 20:20 #1

you need to add } in the end

also you need to remove = after OrderSend

Omar Alkassar 2016.10.13 20:21 #2

//+------------------------------------------------------------------+
//|                                                      ProjectName |
//|                                      Copyright 2012, CompanyName |
//|                                       http://www.companyname.net |
//+------------------------------------------------------------------+
#define PIPE_TYPE_MESSAGE                       4
#define PIPE_READMODE_MESSAGE           2
#define PIPE_WAIT                                       0
#define PIPE_ACCESS_DUPLEX              3
#define PIPE_UNLIMITED_INSTANCES        255
#define NMPWAIT_USE_DEFAULT_WAIT        0
#define INVALID_HANDLE_VALUE            -1
#define ERROR_PIPE_CONNECTED            535

#import "kernel32.dll"
int CreateNamedPipeA(uchar &PipeName[],int dwOpenMode,int dwPipeMode,int nMaxInstances,int nOutBufferSize,int nInBufferSize,int nDefaultTimeOut,int lpSecurityAttributes);
int ConnectNamedPipe(int hPipe,int lpOverlapped);
int ReadFile(int hPipe,uchar &inBuffer[],int NumberOfBytesToRead,int &bytesRead[],int lpOverlapped);
int WriteFile(int hPipe,uchar &outBuffer[],int NumberOfBytesToWrite,int &bytesWritten[],int lpOverlapped);
int FlushFileBuffers(int hPipe);
int DisconnectNamedPipe(int hPipe);
int CloseHandle(int hPipe);
#import

string lastMessage="";
extern string Pipe= "Pipe1";

int start()
  {
   uchar pipeName[];
   ArrayResize(pipeName,StringLen("\\\\.\\pipe\\"+Pipe));
   StringToCharArray("\\\\.\\pipe\\"+Pipe,pipeName);

   int PipeMode=PIPE_TYPE_MESSAGE|PIPE_READMODE_MESSAGE|PIPE_WAIT;
   int hPipe=CreateNamedPipeA(pipeName,PIPE_ACCESS_DUPLEX,PipeMode,PIPE_UNLIMITED_INSTANCES,1024,1024,NMPWAIT_USE_DEFAULT_WAIT,NULL);
   if(hPipe==INVALID_HANDLE_VALUE) 
     {
      Alert("CreateNamedPipe failed");
      return (-1);
     }
   while(!IsStopped()) 
     {

      Comment("Pipe server ready ...\nSend \"STOP\" to stop server\n",lastMessage);
      bool fConnected=ConnectNamedPipe(hPipe,NULL)!=0;
      if(!fConnected)
         fConnected=GetLastError()==ERROR_PIPE_CONNECTED;

      if(fConnected) 
        {
         uchar inBuffer[512];
         int bytesRead[1];
         bool fSuccess=ReadFile(hPipe,inBuffer,ArraySize(inBuffer),bytesRead,NULL)!=0;
         if(!fSuccess || (bytesRead[0]==0)) break;
         string inString=CharArrayToString(inBuffer,0,bytesRead[0]);
         lastMessage="Last message from client: "+inString;
         string outString="Received ["+inString+"]";
         uchar outBuffer[];
         ArrayResize(outBuffer,StringLen(outString)+1);
         StringToCharArray(outString,outBuffer);
         int bytesWritten[1];
         fSuccess=WriteFile(hPipe,outBuffer,ArraySize(outBuffer),bytesWritten,NULL)!=0;
         if(!fSuccess || bytesWritten[0]!=StringLen(outString)+1) break;
         if(inString=="STOP") 
           {
            Comment("Pipe server stopped.");
            FlushFileBuffers(hPipe);
            DisconnectNamedPipe(hPipe);
            CloseHandle(hPipe);
            return(0);
           }

         string Symbol=StringSubstr(0,6);

         int cmd=StrToInteger(StringSubstr(8,1));
         //int cmd = StrToInteger(ordertype.c_str());

         double Volume=StrToDouble(StringSubstr(10,3));
         //double Volume = StrToDouble(Vol.c_str());

         double Price=StrToDouble(StringSubstr(13,2));
         // double Price = StrToDouble(pr.c_str());

         int Slippage=StrToInteger(StringSubstr(16,1));
         //int Slippage = StrToInteger(slp.c_str());

         double StopLoss=StrToDouble(StringSubstr(18,7));
         //double Stoploss = StrToDouble(stl.c_str());

         double TakeProfit=StrToDouble(StringSubstr(25,7));
         //double TakeProfit = StrToDouble(tp.c_str());

         string Comment=StringSubstr(33,4);

         OrderSend(Symbol,cmd,Volume,Price,Slippage,StopLoss,TakeProfit);

        }
      FlushFileBuffers(hPipe);
      DisconnectNamedPipe(hPipe);
     }
   CloseHandle(hPipe);
   return(0);
   }
//+------------------------------------------------------------------+

JD05 2016.10.16 13:56 #3

Omar AlKassar:

Good day Omar,

I've made the necessary changes as per both your adivces.

Progressed has been made with only 1 remaining error.

'ordertype' - function can be decalred only in the global scope.

The code is now as;

#define PIPE_TYPE_MESSAGE                       4
#define PIPE_READMODE_MESSAGE           2
#define PIPE_WAIT                                       0
#define PIPE_ACCESS_DUPLEX              3
#define PIPE_UNLIMITED_INSTANCES        255
#define NMPWAIT_USE_DEFAULT_WAIT        0
#define INVALID_HANDLE_VALUE            -1
#define ERROR_PIPE_CONNECTED            535

#import "kernel32.dll"
        int CreateNamedPipeA(uchar& PipeName[],int dwOpenMode,int dwPipeMode,int nMaxInstances,int nOutBufferSize,int nInBufferSize,int nDefaultTimeOut,int lpSecurityAttributes);
        int ConnectNamedPipe(int hPipe,int lpOverlapped);
        int ReadFile(int hPipe, uchar& inBuffer[],int NumberOfBytesToRead, int& bytesRead[], int lpOverlapped);
        int WriteFile(int hPipe, uchar& outBuffer[], int NumberOfBytesToWrite, int& bytesWritten[], int lpOverlapped);
        int FlushFileBuffers(int hPipe);
        int DisconnectNamedPipe(int hPipe);
        int CloseHandle(int hPipe);
#import

string lastMessage="";
extern string Pipe = "Pipe1";

int start()
{
        uchar pipeName[];
        ArrayResize(pipeName, StringLen("\\\\.\\pipe\\"+Pipe));
        StringToCharArray("\\\\.\\pipe\\"+Pipe, pipeName);

        int PipeMode = PIPE_TYPE_MESSAGE|PIPE_READMODE_MESSAGE|PIPE_WAIT;
        int hPipe = CreateNamedPipeA(pipeName,PIPE_ACCESS_DUPLEX,PipeMode,PIPE_UNLIMITED_INSTANCES,1024,1024,NMPWAIT_USE_DEFAULT_WAIT,NULL);
        if (hPipe == INVALID_HANDLE_VALUE) {
                Alert("CreateNamedPipe failed");
        return (-1);
        }
        while(!IsStopped())     {

                Comment("Pipe server ready ...\nSend \"STOP\" to stop server\n",lastMessage);
                bool fConnected = ConnectNamedPipe(hPipe, NULL) != 0;
                if(!fConnected)
                        fConnected = GetLastError() == ERROR_PIPE_CONNECTED;

                if (fConnected) {
                        uchar inBuffer[512];
                        int bytesRead[1];
                        bool fSuccess = ReadFile(hPipe,inBuffer,ArraySize(inBuffer),bytesRead,NULL) !=0;
                        if (!fSuccess || (bytesRead[0] == 0)) break;
                        string inString = CharArrayToString(inBuffer, 0, bytesRead[0]);
                        lastMessage = "Last message from client: "+inString;
                        string outString = "Received ["+inString+"]";
                        uchar outBuffer[];
                        ArrayResize(outBuffer, StringLen(outString)+1);
                        StringToCharArray(outString, outBuffer);
                        int bytesWritten[1];
                        fSuccess = WriteFile(hPipe,outBuffer,ArraySize(outBuffer),bytesWritten,NULL) != 0;
                        if (! fSuccess || bytesWritten[0] != StringLen(outString)+1) break;
                        if(inString=="STOP") {
                                Comment("Pipe server stopped.");
                                FlushFileBuffers(hPipe);
                                DisconnectNamedPipe(hPipe);
                                CloseHandle(hPipe);
                                return(0);
                        }

                        //string inString="EURUSD,OP_BUY,0.1,1.12309,3,1.12109,1.12409,mycomment";
         string sep=",";
         ushort u_sep;
         string result[];
         u_sep=StringGetCharacter(sep,0);
         int k=StringSplit(inString,u_sep,result);

         string Symbol     =  result[0];
         int    ordertype  =  StrToInteger(result[1]);
         double vol        =  StrToDouble(result[2]);
         double Price      =  StrToDouble(result[3]);
         int    Slippage   =  StrToInteger(result[4]);
         double StopLoss   =  StrToDouble(result[5]);
         double TakeProfit =  StrToDouble(result[6]);
         string Comment    =  result[7];

         int ordertype(string value)
         {
         if(value=="OP_BUY")return(0);
         if(value=="OP_SELL")return(1);
         return(-1);
         }

                        int TicketNumber =(OrderSend(Symbol,ordertype,vol,Price,Slippage,StopLoss,TakeProfit));

                        if (TicketNumber >0)
                        {
                        Print ("Order Placed# ",TicketNumber);
                        }
                        else
                        {
                        Print ("Order Send Failed, Error #", GetLastError());
                        }

                }
                FlushFileBuffers(hPipe);
                DisconnectNamedPipe(hPipe);
        }
        CloseHandle(hPipe);
        return(0);
}

Using named pipes Problem with Client-Server-Communication (named ECN SL & TP

JD05 2016.10.16 14:17 #4

JD05:

Good day Omar,

I've made the necessary changes as per both your adivces.

Progressed has been made with only 1 remaining error.

'ordertype' - function can be decalred only in the global scope.

The code is now as;

Nvm that, solved it.

However when i send a command over from the Client side, it doesnt pick up the order but merely displays the string sent across.

Your help would be deeply appreciated.

Regards,

JD05

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