Making a log file global
 

I'm coding in VC++.NET 2003. I have a class that needs a log file to log info and errors for debugging. The problem I have is that FileStream and StreamWriter can not be global. I get compiler error C3145 : cannot declare a global or static managed type object or a __gc pointer. A workaround was to open, write, and then close the log file in every function/event. During testing, I discovered that this won't work since other functions/events may be executed before the previous function/event has closed the file. Any suggestions?

  FileStream* fs = new FileStream(S"c:\\Variables.txt", FileMode::Append, FileAccess::Write, FileShare::Write);

  fs->Close();

  StreamWriter* sw = new StreamWriter(S"c:\\Variables.txt", true, Encoding::ASCII);

  String* NextLine=S"This is the appended line.";

  sw->Write(NextLine);

  sw->Close();

Re: Making a log file global
 

I got it. Create a function that opens the file/stream, writes to it, and closes the file/stream. Pass in the string to be logged. So, instead of writing directly to the file, call the function.

Re: Making a log file global
 

I do similar, but I put that log function in another thread so that it doesn't slow down other processing. you can put the log requests into a queue, then the log function can take its own sweet time processing them. Also, I always close the file when the last item in the queue has been logged.