From: Asterix Gallier <asterixgallier@...>
Date: 2006-08-01T20:47:42+09:00
Subject: Re: Signaling Ruby from C/C++

now I've tried another solution. I'm sending a signal to the Rubyprocess 
and catch this signal with trap.

- Is this solution threadsafe? I didn't know in which way ruby handles 
the signal exactly.
- Could it be, that some Signals are getting lost because of the 
Handling Routine is already active?

////////////////////////////////////////////////////////
// rubycode

require 'RubyDriver'

Signal.trap("TERM") do
  puts recvArray.pop.to_s
end

RubyDriver::startReceiver(recvThread, recvArray)

////////////////////////////////////////////////////////
// c code

void reciever(void* dummy) {

	VALUE msgsignal[2];
	msgsignal[0] = rb_str_new2("TERM");
	msgsignal[1] = ProcessId;

	while(1) {
		msg = recieveMessage();	  // a C function wich
                                      // returns if there is
                                      // new data arrived
		rb_ary_push(receiverArray, msg);
		rb_f_kill(2, msgsignal);
	}
}


void startReceiver(VALUE pId, VALUE array) {
	processId = pId;
	receiverArray = array;

	hThread = (HANDLE)_beginthread( reciever, 0, NULL );
}


-- 
Posted via http://www.ruby-forum.com/.