add mutex function

CMakeLists.txt

@@ -7,6 +7,11 @@ target_compile_options(system PUBLIC -fcoroutines -Wall -O2)
 target_compile_features(system PUBLIC cxx_std_20)
 target_include_directories(system PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/inc)
 
+add_library(mutex src/mutex.cpp)
+target_compile_options(mutex PUBLIC -Wall -O2)
+target_compile_features(mutex PUBLIC cxx_std_20)
+target_include_directories(mutex PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/inc)
+
 if(${PROJECT_NAME}-SYSTEM-TEST)
   add_executable(${PROJECT_NAME}-system-googletest test/system-gtest.cpp src/generator.cpp src/task.cpp)
   target_compile_features(${PROJECT_NAME}-system-googletest PUBLIC cxx_std_20)

inc/mutex.hpp

@@ -0,0 +1,67 @@
+/**
+ * @file mutex.hpp
+ * @author Nishinaga
+ * @brief 
+ * @version 0.1
+ * @date 2024-04-24
+ * 
+ * @copyright Copyright (c) 2024
+ * @todo ban interrupts
+ * 
+ */
+
+#pragma once
+
+#include <type_traits>
+/**
+ * @brief mutex class for single thread
+ * 
+ */
+class Mutex
+{
+    bool locked;
+public:
+    Mutex();
+
+    bool& ImplLock() noexcept;
+};
+
+#define MUTEX_LOCK(mutex) \
+do\
+{\
+    static_assert(std::is_same<Mutex, \
+    std::remove_reference<std::remove_cv<decltype(mutex)>::type>::type \
+    >::value, \
+    "the mutex type is not Mutex"); \
+    mutex.ImplLock() = true; \
+} while(0)
+
+#define MUTEX_UNLOCK(mutex) \
+do\
+{\
+    static_assert(std::is_same<Mutex, \
+    std::remove_reference<std::remove_cv<decltype(mutex)>::type>::type \
+    >::value, \
+    "the mutex type is not Mutex"); \
+    mutex.ImplLock() = false; \
+} while(0)
+
+#define MUTEX_TRY_LOCK(mutex) \
+true; \
+do\
+{\
+    static_assert(std::is_same<Mutex, \
+    std::remove_reference<std::remove_cv<decltype(mutex)>::type>::type \
+    >::value, \
+    "the mutex type is not Mutex"); \
+    mutex.ImplLock() = true; \
+} while(0)
+
+class LockGuard
+{
+    Mutex& mutex;
+
+public:
+    LockGuard(Mutex& mutex);
+    ~LockGuard();
+};

src/mutex.cpp

@@ -0,0 +1,32 @@
+/**
+ * @file mutex.cpp
+ * @author Nishinaga
+ * @brief implementation of mutex
+ * @version 0.1
+ * @date 2024-04-25
+ * 
+ * @copyright Copyright (c) 2024
+ * 
+ */
+
+#include "mutex.hpp"
+
+Mutex::Mutex()
+{
+
+}
+
+bool& Mutex::ImplLock() noexcept
+{
+    return this->locked;
+}
+
+LockGuard::LockGuard(Mutex& mutex_) : mutex(mutex_)
+{
+    MUTEX_LOCK(mutex);
+}
+
+LockGuard::~LockGuard()
+{
+    MUTEX_UNLOCK(this->mutex);
+}