1 files changed, 125 insertions, 0 deletions
diff --git a/src/shared/OSCSender.cpp b/src/shared/OSCSender.cpp
new file mode 100644
index 00000000..f366b1a4
--- /dev/null
+++ b/src/shared/OSCSender.cpp
@@ -0,0 +1,125 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "OSCSender.hpp"
+#include <cassert>
+#include <iostream>
+#include <unistd.h>
+
+using namespace std;
+
+namespace Ingen {
+namespace Shared {
+
+
+OSCSender::OSCSender()
+	: _transfer(NULL)
+	, _address(NULL)
+	, _enabled(true)
+{
+}
+
+
+void
+OSCSender::bundle_begin()
+{
+	assert(!_transfer);
+	lo_timetag t;
+	lo_timetag_now(&t);
+	_transfer = lo_bundle_new(t);
+	_send_state = SendingBundle;
+}
+
+
+void
+OSCSender::bundle_end()
+{
+	transfer_end();
+}
+
+	
+void
+OSCSender::transfer_begin()
+{
+	assert(!_transfer);
+	lo_timetag t;
+	lo_timetag_now(&t);
+	_transfer = lo_bundle_new(t);
+	_send_state = SendingTransfer;
+}
+
+
+void
+OSCSender::transfer_end()
+{
+	assert(_transfer);
+	lo_send_bundle(_address, _transfer);
+	lo_bundle_free(_transfer);
+	_transfer = NULL;
+	_send_state = Immediate;
+}
+
+	
+int
+OSCSender::send(const char *path, const char *types, ...)
+{
+	if (!_enabled)
+		return 0;
+
+	va_list args;
+	va_start(args, types);
+	
+	lo_message msg = lo_message_new();
+	int ret = lo_message_add_varargs(msg, types, args);
+    
+	if (!ret)
+		send_message(path, msg);
+    
+	va_end(args);
+
+	return ret;
+}
+
+
+void
+OSCSender::send_message(const char* path, lo_message msg)
+{
+	// FIXME: size?  liblo doesn't export this.
+	// Don't want to exceed max UDP packet size (good default value?)
+	static const size_t MAX_BUNDLE_SIZE = 1024;
+
+	if (!_enabled)
+		return;
+			
+	if (_transfer) {
+		if (lo_bundle_length(_transfer) + lo_message_length(msg, path) > MAX_BUNDLE_SIZE) {
+			if (_send_state == SendingBundle)
+				cerr << "WARNING: Maximum bundle size reached, bundle split" << endl;
+			lo_send_bundle(_address, _transfer);
+			lo_timetag t;
+			lo_timetag_now(&t);
+			_transfer = lo_bundle_new(t);
+		}
+		lo_bundle_add_message(_transfer, path, msg);
+
+	} else {
+		lo_send_message(_address, path, msg);
+	}
+}
+
+} // namespace Shared
+} // namespace Ingen