Initial commit

source/emulator/include/Emulator/Graphics/AsyncJob.h

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+#ifndef EMULATOR_INCLUDE_EMULATOR_GRAPHICS_ASYNCJOB_H_
+#define EMULATOR_INCLUDE_EMULATOR_GRAPHICS_ASYNCJOB_H_
+
+#include "Kyty/Core/Common.h"
+#include "Kyty/Core/Threads.h"
+
+#include "Emulator/Common.h"
+#include "Emulator/Profiler.h"
+
+#ifdef KYTY_EMU_ENABLED
+
+namespace Kyty::Libs::Graphics {
+
+class AsyncJob
+{
+public:
+	using func_t = std::function<void(void*)>;
+	explicit AsyncJob(const char* name): m_name(name) { m_thread = new Core::Thread(ThreadRun, this); }
+	virtual ~AsyncJob()
+	{
+		EXIT_IF(m_thread == nullptr);
+		Core::LockGuard lock(m_mutex);
+		m_need_exit = true;
+		m_cond_var1.Signal();
+		m_thread->Join();
+		delete m_thread;
+	}
+	KYTY_CLASS_NO_COPY(AsyncJob);
+
+	void Execute(func_t func, void* arg = nullptr)
+	{
+		Core::LockGuard lock(m_mutex);
+		while (m_func != nullptr)
+		{
+			m_cond_var2.Wait(&m_mutex);
+		}
+		m_func = std::move(func);
+		m_arg  = arg;
+		m_cond_var1.Signal();
+	}
+
+	void Wait()
+	{
+		Core::LockGuard lock(m_mutex);
+		while (m_func != nullptr)
+		{
+			m_cond_var2.Wait(&m_mutex);
+		}
+	}
+
+private:
+	Core::Mutex   m_mutex;
+	Core::CondVar m_cond_var1;
+	Core::CondVar m_cond_var2;
+	Core::Thread* m_thread = nullptr;
+	const char*   m_name   = nullptr;
+
+	func_t m_func      = nullptr;
+	void*  m_arg       = nullptr;
+	bool   m_need_exit = false;
+
+	static void ThreadRun(void* data)
+	{
+		// printf("Start AsyncJob Thread: 0x%" PRIx64 "\n", static_cast<uint64_t>(GetCurrentThreadId()));
+		auto* aj = static_cast<AsyncJob*>(data);
+
+		if (aj->m_name != nullptr)
+		{
+			KYTY_PROFILER_THREAD(aj->m_name);
+		}
+
+		for (;;)
+		{
+			Core::LockGuard lock(aj->m_mutex);
+			while (aj->m_func == nullptr && !aj->m_need_exit)
+			{
+				aj->m_cond_var1.Wait(&aj->m_mutex);
+			}
+			if (aj->m_need_exit)
+			{
+				break;
+			}
+			aj->m_func(aj->m_arg);
+			aj->m_func = nullptr;
+			aj->m_cond_var2.Signal();
+		}
+	}
+};
+
+} // namespace Kyty::Libs::Graphics
+
+#endif // KYTY_EMU_ENABLED
+
+#endif /* EMULATOR_INCLUDE_EMULATOR_GRAPHICS_ASYNCJOB_H_ */