1 files changed, 123 insertions, 0 deletions
diff --git a/src/URIMap.cpp b/src/URIMap.cpp
new file mode 100644
index 00000000..9ce1f178
--- /dev/null
+++ b/src/URIMap.cpp
@@ -0,0 +1,123 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2015 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or 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 Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <cstdint>
+
+#include "ingen/Log.hpp"
+#include "ingen/URI.hpp"
+#include "ingen/URIMap.hpp"
+
+namespace Ingen {
+
+URIMap::URIMap(Log& log, LV2_URID_Map* map, LV2_URID_Unmap* unmap)
+	: _urid_map_feature(new URIDMapFeature(this, map, log))
+	, _urid_unmap_feature(new URIDUnmapFeature(this, unmap))
+{
+}
+
+URIMap::URIDMapFeature::URIDMapFeature(URIMap*       map,
+                                       LV2_URID_Map* impl,
+                                       Log&          log)
+	: Feature(LV2_URID__map, &urid_map)
+	, log(log)
+{
+	if (impl) {
+		urid_map = *impl;
+	} else {
+		urid_map.map    = default_map;
+		urid_map.handle = map;
+	}
+}
+
+LV2_URID
+URIMap::URIDMapFeature::default_map(LV2_URID_Map_Handle h,
+                                    const char*         c_uri)
+{
+	URIMap* const               map((URIMap*)h);
+	std::string                 uri(c_uri);
+	std::lock_guard<std::mutex> lock(map->_mutex);
+
+	auto       record = map->_map.emplace(uri, map->_map.size() + 1);
+	const auto id     = record.first->second;
+	if (record.second) {
+		assert(id == map->_map.size());
+		assert(id == map->_unmap.size() + 1);
+		map->_unmap.emplace_back(std::move(uri));
+	}
+	return id;
+}
+
+LV2_URID
+URIMap::URIDMapFeature::map(const char* uri)
+{
+	if (!URI::is_valid(uri)) {
+		log.error(fmt("Attempt to map invalid URI <%1%>\n") % uri);
+		return 0;
+	}
+	return urid_map.map(urid_map.handle, uri);
+}
+
+URIMap::URIDUnmapFeature::URIDUnmapFeature(URIMap*         map,
+                                           LV2_URID_Unmap* impl)
+	: Feature(LV2_URID__unmap, &urid_unmap)
+{
+	if (impl) {
+		urid_unmap = *impl;
+	} else {
+		urid_unmap.unmap  = default_unmap;
+		urid_unmap.handle = map;
+	}
+}
+
+const char*
+URIMap::URIDUnmapFeature::default_unmap(LV2_URID_Unmap_Handle h,
+                                        LV2_URID              urid)
+{
+	URIMap* const               map((URIMap*)h);
+	std::lock_guard<std::mutex> lock(map->_mutex);
+
+	return (urid > 0 && urid <= map->_unmap.size()
+	        ? map->_unmap[urid - 1].c_str()
+	        : NULL);
+}
+
+const char*
+URIMap::URIDUnmapFeature::unmap(LV2_URID urid)
+{
+	return urid_unmap.unmap(urid_unmap.handle, urid);
+}
+
+uint32_t
+URIMap::map_uri(const char* uri)
+{
+	const uint32_t urid = _urid_map_feature->map(uri);
+#ifdef INGEN_DEBUG_URIDS
+	fprintf(stderr, "Map URI %3u <= %s\n", urid, uri);
+#endif
+	return urid;
+}
+
+const char*
+URIMap::unmap_uri(uint32_t urid) const
+{
+	const char* uri = _urid_unmap_feature->unmap(urid);
+#ifdef INGEN_DEBUG_URIDS
+	fprintf(stderr, "Unmap URI %3u => %s\n", urid, uri);
+#endif
+	return uri;
+}
+
+} // namespace Ingen