Implement some syscalls

src/common/CMakeLists.txt

@@ -0,0 +1,16 @@
+file(GLOB_RECURSE SRC_FILES CONFIGURE_DEPENDS
+  *.cpp
+  *.hpp
+)
+
+add_library(common ${SRC_FILES})
+
+momo_assign_source_group(${SRC_FILES})
+
+target_include_directories(common INTERFACE "${CMAKE_CURRENT_LIST_DIR}")
+
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+target_link_libraries(common PUBLIC
+  Threads::Threads
+)