Initial commit

engines/tetraedge/te/te_resource_manager.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "tetraedge/te/te_resource.h"
+#include "tetraedge/te/te_resource_manager.h"
+
+namespace Tetraedge {
+
+TeResourceManager::TeResourceManager() {
+}
+
+TeResourceManager::~TeResourceManager() {
+	// Remove resources one at a time as they may be inter-dependant,
+	// causing removals during iteration.
+	while (_resources.size()) {
+		_resources.erase(_resources.end() - 1);
+	}
+}
+
+void TeResourceManager::addResource(const TeIntrusivePtr<TeResource> &resource) {
+	_resources.insert_at(0, resource);
+}
+
+void TeResourceManager::addResource(TeResource *resource) {
+	_resources.insert_at(0, TeIntrusivePtr<TeResource>(resource));
+}
+
+bool TeResourceManager::exists(const Common::Path &path) {
+	for (auto &resource : _resources) {
+		if (resource->getAccessName() == path)
+			return true;
+	}
+	return false;
+}
+
+void TeResourceManager::removeResource(const TeIntrusivePtr<TeResource> &resource) {
+	for (uint i = 0; i < _resources.size(); i++) {
+		if (_resources[i] == resource) {
+			_resources.remove_at(i);
+			break;
+		}
+	}
+}
+
+void TeResourceManager::removeResource(const TeResource *resource) {
+	// We want to hold a new reference before removing the old one, as
+	// this could cause the object's destruction - which triggers it
+	// being removed from the list.
+	TeIntrusivePtr<TeResource> ptr;
+	uint i = 0;
+	for (; i < _resources.size(); i++) {
+		if (_resources[i].get() == resource) {
+			ptr = _resources[i];
+			break;
+		}
+	}
+	if (i < _resources.size())
+		_resources.remove_at(i);
+
+	// now we can let the other pointer go.  It could cause another
+	// removeResource request but now it's not in the list any more.
+}
+
+} // end namespace Tetraedge