From: jglueck@... (=?ISO-8859-1?Q?Bernhard_Gl=FCck?=)
Date: 2001-09-11T21:19:18+09:00
Subject: [ruby-talk:21076] Re: Calling member methods from C++

Hm, I fixed the problem ... in my C++ method for calling a ruby object
method it was like this:

The VALUE val ist the class instance VALUE and LogInfo(("")) Is a
debug output routine...

I was outputting:
LogInfo(("Calling ruby object: %s::%s",rb_class2name( val ),(const
char *)callString ) );

for debugging purposes ( to see what object is called with what method
etc )
On the 28th call to rb_class2name the program crashes.... When i
remove this debug statement ( or just the rb_class2name ) everything
works smooth as hell...

Any clues ? 
Here is the complete code:

	void Message::SendToScript( VALUE val )
	{
		guard( Message::SendToScript );
		
		String callString = "On";
		callString += m_msg;
	
		// Generated for the method
		ID callId = rb_intern( callString.Get() );

		// Now create the parameter array for the call...
		Array<VALUE> args;

		LogInfo(("Calling ruby object: %s::%s",rb_class2name( val ),(const
char *)callString ) );
	
		if ( rb_respond_to( val,callId ) )
		{
			s_rubyCounter ++;
			// And make the script call

			LogInfo(("Rubycall: %u",s_rubyCounter));
			rb_funcall2( val,callId,args.Size(),args.Begin() );
		}

		unguard();
	}