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tjp/core/threads/TestMutex.hpp

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+// License: Modified MIT (NON-AI)
+// See the LICENSE file in the root directory for license information.
+// Copyright 2025 Timothy Prepscius
+
+#pragma once
+
+#include <atomic>
+#include "Lock.h"
+#include "../system/Debug.h"
+#include <thread>
+#include "../types/Types.h"
+
+namespace tjp::core {
+
+#ifdef _DEBUG
+#define USE_REAL_TEST_MUTEX
+#endif
+
+#ifdef USE_REAL_TEST_MUTEX
+
+struct TestMutex
+{
+	struct Lock;
+	
+	using V = size_t;
+	std::atomic<V> v = 0;
+	std::atomic<u64> c = 0;
+	
+	Lock lock_of();
+	
+	u64 get_thread_id() const;
+	
+	void lock();
+	void unlock();
+	
+    bool locked_by_caller() const;
+} ;
+
+struct TestMutex::Lock
+{
+	TestMutex *m = nullptr;
+	u64 id;
+	
+	Lock ();
+	Lock (TestMutex::Lock &&rhs);
+	Lock (TestMutex &m_);
+	
+	~Lock ();
+};
+
+#else
+
+struct TestMutex {
+	struct Lock {
+		// avoids the unused variable warning
+		~Lock() {}
+	};
+
+	void lock () {}
+	void unlock () {}
+	
+	Lock lock_of () { return TestMutex::Lock {}; }
+    bool locked_by_caller() { return true; }
+};
+
+#endif
+
+} // namespace
+
+#include "TestMutex.inl"