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-rw-r--r--src/server/EventSink.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/src/server/EventSink.cpp b/src/server/EventSink.cpp
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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David 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 "EventSink.hpp"
+#include "PortImpl.hpp"
+
+using namespace std;
+
+namespace Ingen {
+namespace Server {
+
+/** \a size is not size_t because an event will never be even remotely close
+ * to UINT32_MAX in size, so uint32_t saves wasted space on 64-bit.
+ */
+bool
+EventSink::write(uint32_t size, const Event* ev)
+{
+ if (size > _events.write_space())
+ return false;
+
+ _events.write(sizeof(uint32_t), (uint8_t*)&size);
+ _events.write(size, (uint8_t*)ev);
+
+ return true;
+}
+
+/** Read the next event into event_buffer.
+ *
+ * \a event_buffer can be casted to Event* and virtual methods called.
+ */
+bool
+EventSink::read(uint32_t event_buffer_size, uint8_t* event_buffer)
+{
+ uint32_t read_size;
+ bool success = _events.full_read(sizeof(uint32_t), (uint8_t*)&read_size);
+ if (!success)
+ return false;
+
+ assert(read_size <= event_buffer_size);
+
+ if (read_size > 0)
+ return _events.full_read(read_size, event_buffer);
+ else
+ return false;
+}
+
+} // namespace Server
+} // namespace Ingen