////////////////////////////////////////////////////////////////////////////////////

//

// Script: ASC File Logger

//

//  Description:

//   This script is used to save or record a log file in the ASC format

//

//   All that needs to be done is to change the variable ASC_FILE_NAME below to

//   path of the file that you wish to record.  All packets received by the respective

//   script block will then be recorded to the file in the ASC format.

//  

//  Author:

//    Jonathan Kaufmann

//  Date:

//    03/19/2009

//

/////////////////////////////////////////////////////////////////////////////////////

 

//filename to record

string ASC_FILE_NAME = "c:\\test.asc";               

 

//Global vars

file ascFile;                                        //global file object

bool bFailed;

bool bFileOpen;

 

//This function is called when a new capture is started

void OnStartCapture(ScriptBlock block)

{   

    bFileOpen = false;                        //only create the file if we receive a message       

    bFailed = false;                       

    block.ClearOutputText();                //clear all text in output window   

 

    //Print log message

    block.PrintOutputText("Recording data stream to file: " + ASC_FILE_NAME + "\n", false, false, true, false);   

}

 

//This function is called when a capture is stopped

void OnStopCapture(ScriptBlock block)

{   

    //Write end and close file

    if (bFileOpen == true)

    {

        ascFile.writeString("End Triggerblock\n", 0xFFFFFFFF);

        ascFile.close();   

    }

}

 

//This function is called everytime a message is received on an input port

//"inPort" will hold the port the message was received by (1, 2, or 3)

void OnReceiveMessage(uint8 inPort, ScriptBlock block, Message &msg)

{

    //If we failed to open the file, exit always for this capture

    if (bFailed == true)

        return;

 

    //Open the file when the first message is received

    if (bFileOpen == false)

    {                                   

        //Open the ASC file for writing

        if (ascFile.open(ASC_FILE_NAME, "w") != 0) {

            block.PrintOutputText("Error opening file for write access: " + ASC_FILE_NAME + "\n", true, false, false, true);

            bFailed = true;

            return;

        }               

        bFileOpen = true;   

 

        //Write header to file

        ascFile.writeString("date XXX XXX XX XX:XX:XX am XXXX\n", 0xFFFFFFFF);

        ascFile.writeString("base hex  timestamps absolute\n", 0xFFFFFFFF);

        ascFile.writeString("internal events logged\n", 0xFFFFFFFF);

        ascFile.writeString("// This file was generated by CANCapture - http://www.cancapture.com\n", 0xFFFFFFFF);

        ascFile.writeString("Begin Triggerblock XX XX XX XX:XX:XX am XXXX\n", 0xFFFFFFFF);

        ascFile.writeString("   0.000000 Start of measurement\n", 0xFFFFFFFF);   

    }

 

    //Retrieve various values from the received message

    string sts = msg.GetTimeStamp();

    string sport = inPort;

    string sid = ConvertToHex(msg.GetID(), 0);

    int len = msg.GetDataLength();   

    string sdl = len;

    string s29bit = msg.Is11Bit() != 0 ? "" : "x";

 

    //Prepare the string for this message to be saved to file

    string outLine = "   " + sts + "\t" + sport + " " + sid + s29bit + "\t  Rx   d " + sdl;   

    for (int i = 0; i < len; ++i)

        outLine += " " + ConvertToHex(msg.GetData(i), 2);

    outLine += "\n";

 

    //And write it out to the file

    //block.PrintOutputText(outLine, false, true, false, false);

    ascFile.writeString(outLine, 0xFFFFFFFF);

}

 

//There's no conversion of decimal to hex so this is a simple

//function that will do it.  padZeros is used to define the total number

//of hex characters to use (the remaining characters are padded with 0).

string ConvertToHex(uint value, int padZeros)

{

    string str = "";

    int chars = 0;

 

    while (value != 0)

    {

        chars++;

        uint val = value & 0xF;

        switch (val)

        {

            case 0: str = "0" + str; break;

            case 1: str = "1" + str; break;

            case 2: str = "2" + str; break;

            case 3: str = "3" + str; break;

            case 4: str = "4" + str; break;

            case 5: str = "5" + str; break;

            case 6: str = "6" + str; break;

            case 7: str = "7" + str; break;

            case 8: str = "8" + str; break;

            case 9: str = "9" + str; break;

            case 10: str = "A" + str; break;

            case 11: str = "B" + str; break;

            case 12: str = "C" + str; break;

            case 13: str = "D" + str; break;

            case 14: str = "E" + str; break;

            case 15: str = "F" + str; break;

            default: return "";

        }           

        value = value / 16;                   

    }

 

    //Append extra characters if needed

    for ( ; chars < padZeros; ++chars)

        str = "0" + str;

 

    return str;

}