Squashed 'external/parallel-rdp/parallel-rdp-standalone/' content from commit d1cc912c5c4

git-subtree-dir: external/parallel-rdp/parallel-rdp-standalone
git-subtree-split: d1cc912c5c47abaf9b6b155d3cd15255df65cf5b

util/thread_id.cpp

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+/* Copyright (c) 2017-2023 Hans-Kristian Arntzen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "thread_id.hpp"
+#include "logging.hpp"
+
+namespace Util
+{
+static thread_local unsigned thread_id_to_index = ~0u;
+
+unsigned get_current_thread_index()
+{
+	auto ret = thread_id_to_index;
+	if (ret == ~0u)
+	{
+		LOGE("Thread does not exist in thread manager or is not the main thread.\n");
+		return 0;
+	}
+	return ret;
+}
+
+void register_thread_index(unsigned index)
+{
+	thread_id_to_index = index;
+}
+}