int WriteToFile(char *cDOSPath, char * cDOS)
{
//Save Epoch time to an array
web_save_timestamp_param("sEpochMilliseconds", LAST);
strcpy(cEpochTime, lr_eval_string("{sEpochMilliseconds}"));
//Save the unique filename in the format C:\temp\x_yyyyyyyyyyyyy.txt where x is vUserID and yyyyyyyyyyyyy is Current EpochTime
lr_save_string("C:\\temp\\", "FilePath");
lr_save_string(".txt", "FileType");
strcpy(file_path, lr_eval_string("{FilePath}"));
strcat(file_path, lr_eval_string("{pVuser}"));
strcat(file_path, "_");
strcat(file_path, cEpochTime);
strcat(file_path, lr_eval_string("{FileType}"));
// Uncomment the following line for debugging - output current filepath
// lr_output_message("File Path - %s", file_path);
//This is the command thich will write data to the external file.
//It starts by writing the DOS command into a string called "command"
sprintf(cCommand, "%s%s > %s", cDOSPath, cDOS ,file_path);
lr_output_message("cCommand - %s", cCommand);
lr_output_message("cDOS - %s", cDOS);
lr_output_message("file_path - %s", file_path);
// Uncomment the following line for debugging - output current command
lr_output_message("command - %s", cCommand);
//Execute the DOS command "command"
system(cCommand);
}
SplitStringCalculations()
{
int iValue;
char cBuffer[1024]="";
char cConcatenatedOutput[1024]="";
web_save_timestamp_param("sLoadRunnerTimeStamp", LAST);
lr_output_message( "Current UNIX time in milliseconds is #%s", lr_eval_string( "{sLoadRunnerTimeStamp}" ) );
//Splits the saved string {sLoadRunnerTimeStamp} into two parts, first 7 and remainder
//fSplitString function is declared in vuser_init
fSplitString(lr_eval_string("{sLoadRunnerTimeStamp}"),7);
//Convert {sRightString} to integer iValue to perform calculation
//In this case subtract 1000 milliseconds to get timestamp from one second ago
iValue = atoi(lr_eval_string("{sRightString}"));
iValue = iValue-1000;
sprintf(cBuffer, "%d", iValue);
//Save Right part of the string
lr_save_string(cBuffer, "sCalculatedRightString");
//Copy {sLeftString} into cConcatenatedOutput, then concatenate (append) {sCalculatedRightString}
strcpy(cConcatenatedOutput, lr_eval_string("{sLeftString}"));
strcat(cConcatenatedOutput, lr_eval_string("{sCalculatedRightString}"));
lr_output_message("Epoch time minus 1000 milliseconds is:[%s]",cConcatenatedOutput);
return 0;
}
Action()
{
long file_stream = 0;
char file_path[1024] = ""; //file_path (this is the location for temporary files)
char command[1024]; //command (this is the DOS command to be executed)
char cEpochTime[13]; //cEpochTime (the time in milliseconds since 00:00:00 on 1st January 1970 - used to create unique name for temporary file)
char cLine[100]; //cLine (this is an array to contain the data read back to LoadRunner from the external file)
char cExtData[100]; //cExtData (this is an array to contain the data read back to LoadRunner from the external file without the \n at the end)
//Save Epoch time to an array
web_save_timestamp_param("sEpochMilliseconds", LAST);
strcpy(cEpochTime, lr_eval_string("{sEpochMilliseconds}"));
//Save the unique filename in the format C:\temp\x_yyyyyyyyyyyyy.txt where x is vUserID and yyyyyyyyyyyyy is Current EpochTime
lr_save_string("C:\\temp\\", "FilePath");
lr_save_string(".txt", "FileType");
strcpy(file_path, lr_eval_string("{FilePath}"));
strcat(file_path, lr_eval_string("{pVuser}"));
strcat(file_path, "_");
strcat(file_path, cEpochTime);
strcat(file_path, lr_eval_string("{FileType}"));
// Uncomment the following line for debugging - output current filepath
// lr_output_message("File Path - %s", file_path);
//This is the command thich will write data to the external file.
//It starts by writing the DOS command into a string called "command"
sprintf(command, "hostname > %s", file_path);
// Uncomment the following line for debugging - output current command
// lr_output_message("command - %s", command);
//Execute the DOS command "command"
system(command);
//The rest of the script is responsible for reading in data from the external file created above and then deleting that file.
//This IF statement checks that the file_path is valid and that the file can be opened.
if ((file_stream = fopen(file_path, "r")) == NULL )
{
lr_error_message("Cannot open %s", file_path);
return -1;
}
//This IF statement returns the string which has been read into LoadRunner and saves it as "line"
//Unless the End Of File is reached or if a reading error occurred.
if (fgets(cLine, 100, file_stream) == NULL)
lr_output_message("fgets error");
else
//Uncomment the following line for debugging - output contents of "cLine" array including trailing \n
//lr_output_message( "Data from the external file is [%s]", cLine);
//This function writes the data from the external file without the trailing \n into a new array called cExtData
strncat ( cExtData, cLine, (strlen(cLine)-1) );
lr_output_message( "Data from the external file is [%s]", cExtData);
//This IF statement returns an error if LoadRunner cannot close the external file.
if (fclose(file_stream))
lr_error_message("Error closing file %s", file_path);
//This is the command thich will delete the external temporary file
//It starts by writing the DOS command into a string called "command"
sprintf(command, "del %s", file_path);
// Uncomment the following line for debugging - output current command
// lr_output_message("command - %s", command);
//Execute the DOS command "command"
system(command);
return 0;
}
