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-rw-r--r--src/libs/shared/OSCSender.cpp118
-rw-r--r--src/libs/shared/OSCSender.hpp59
2 files changed, 177 insertions, 0 deletions
diff --git a/src/libs/shared/OSCSender.cpp b/src/libs/shared/OSCSender.cpp
new file mode 100644
index 00000000..340786db
--- /dev/null
+++ b/src/libs/shared/OSCSender.cpp
@@ -0,0 +1,118 @@
+/* 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>
+
+using namespace std;
+
+namespace Ingen {
+namespace Shared {
+
+
+OSCSender::OSCSender()
+ : _transfer(NULL)
+ , _address(NULL)
+ , _enabled(true)
+{
+}
+
+
+void
+OSCSender::bundle_begin()
+{
+ assert(!_transfer);
+ _transfer = lo_bundle_new(LO_TT_IMMEDIATE);
+ _send_state = SendingBundle;
+}
+
+
+void
+OSCSender::bundle_end()
+{
+ transfer_end();
+}
+
+
+void
+OSCSender::transfer_begin()
+{
+ assert(!_transfer);
+ _transfer = lo_bundle_new(LO_TT_IMMEDIATE);
+ _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 (1500 bytes?)
+ static const size_t MAX_BUNDLE_SIZE = 1500 - 32*5;
+
+ 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);
+ _transfer = lo_bundle_new(LO_TT_IMMEDIATE);
+ }
+ lo_bundle_add_message(_transfer, path, msg);
+
+ } else {
+ lo_send_message(_address, path, msg);
+ }
+}
+
+} // namespace Shared
+} // namespace Ingen
diff --git a/src/libs/shared/OSCSender.hpp b/src/libs/shared/OSCSender.hpp
new file mode 100644
index 00000000..16b6dd22
--- /dev/null
+++ b/src/libs/shared/OSCSender.hpp
@@ -0,0 +1,59 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2007 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
+ */
+
+#ifndef OSCSENDER_H
+#define OSCSENDER_H
+
+#include <inttypes.h>
+#include <lo/lo.h>
+
+namespace Ingen {
+namespace Shared {
+
+class OSCSender {
+public:
+ OSCSender();
+ ~OSCSender();
+
+ lo_address address() const { return _address; }
+
+ // Message bundling
+ void bundle_begin();
+ void bundle_end();
+
+ // Transfers (loose bundling)
+ void transfer_begin();
+ void transfer_end();
+
+protected:
+ int send(const char *path, const char *types, ...);
+ void send_message(const char* path, lo_message m);
+
+ enum SendState { Immediate, SendingBundle, SendingTransfer };
+
+ SendState _send_state;
+ lo_bundle _transfer;
+ lo_address _address;
+ bool _enabled;
+};
+
+
+} // namespace Shared
+} // namespace Ingen
+
+#endif // OSCSENDER_H
+