[mutex] fix win9x mutex

Author: MacroModel

include/fast_io_core_impl/io_lockable.h

@@ -52,6 +52,15 @@ struct basic_general_io_lockable_nonmovable
 			this->handle = T(::std::forward<Args>(args)...);
 		}
 	}
+
+	inline constexpr auto native_handle() noexcept(noexcept(handle.native_handle()))
+		requires(requires() {
+			handle.native_handle();
+		})
+	{
+		return handle.native_handle();
+	}
+
 	inline constexpr void close() noexcept(noexcept(handle.close()))
 	{
 		::fast_io::io_lock_guard guard(mutex);

include/fast_io_device.h

@@ -49,6 +49,13 @@ template <::std::integral char_type>
 using basic_obuf_file_lockable = basic_io_lockable<basic_obuf_file<char_type>>;
 template <::std::integral char_type>
 using basic_iobuf_file_lockable = basic_io_lockable<basic_iobuf_file<char_type>>;
+
+template <::std::integral char_type>
+using basic_ibuf_file_lockable_nonmovable = basic_io_lockable_nonmovable<basic_ibuf_file<char_type>>;
+template <::std::integral char_type>
+using basic_obuf_file_lockable_nonmovable = basic_io_lockable_nonmovable<basic_obuf_file<char_type>>;
+template <::std::integral char_type>
+using basic_iobuf_file_lockable_nonmovable = basic_io_lockable_nonmovable<basic_iobuf_file<char_type>>;
 /*
 char region
 */
@@ -62,6 +69,10 @@ using ibuf_file_lockable = basic_ibuf_file_lockable<char>;
 using obuf_file_lockable = basic_obuf_file_lockable<char>;
 using iobuf_file_lockable = basic_iobuf_file_lockable<char>;
 
+using ibuf_file_lockable_nonmovable = basic_ibuf_file_lockable_nonmovable<char>;
+using obuf_file_lockable_nonmovable = basic_obuf_file_lockable_nonmovable<char>;
+using iobuf_file_lockable_nonmovable = basic_iobuf_file_lockable_nonmovable<char>;
+
 /*
 wchar_t region
 */
@@ -79,6 +90,10 @@ using wibuf_file_lockable = basic_ibuf_file_lockable<wchar_t>;
 using wobuf_file_lockable = basic_obuf_file_lockable<wchar_t>;
 using wiobuf_file_lockable = basic_iobuf_file_lockable<wchar_t>;
 
+using wibuf_file_lockable_nonmovable = basic_ibuf_file_lockable_nonmovable<wchar_t>;
+using wobuf_file_lockable_nonmovable = basic_obuf_file_lockable_nonmovable<wchar_t>;
+using wiobuf_file_lockable_nonmovable = basic_iobuf_file_lockable_nonmovable<wchar_t>;
+
 /*
 char8_t region
 */
@@ -92,6 +107,10 @@ using u8ibuf_file_lockable = basic_ibuf_file_lockable<char8_t>;
 using u8obuf_file_lockable = basic_obuf_file_lockable<char8_t>;
 using u8iobuf_file_lockable = basic_iobuf_file_lockable<char8_t>;
 
+using u8ibuf_file_lockable_nonmovable = basic_ibuf_file_lockable_nonmovable<char8_t>;
+using u8obuf_file_lockable_nonmovable = basic_obuf_file_lockable_nonmovable<char8_t>;
+using u8iobuf_file_lockable_nonmovable = basic_iobuf_file_lockable_nonmovable<char8_t>;
+
 /*
 char16_t region
 */
@@ -105,6 +124,10 @@ using u16ibuf_file_lockable = basic_ibuf_file_lockable<char16_t>;
 using u16obuf_file_lockable = basic_obuf_file_lockable<char16_t>;
 using u16iobuf_file_lockable = basic_iobuf_file_lockable<char16_t>;
 
+using u16ibuf_file_lockable_nonmovable = basic_ibuf_file_lockable_nonmovable<char16_t>;
+using u16obuf_file_lockable_nonmovable = basic_obuf_file_lockable_nonmovable<char16_t>;
+using u16iobuf_file_lockable_nonmovable = basic_iobuf_file_lockable_nonmovable<char16_t>;
+
 /*
 char32_t region
 */
@@ -118,6 +141,10 @@ using u32ibuf_file_lockable = basic_ibuf_file_lockable<char32_t>;
 using u32obuf_file_lockable = basic_obuf_file_lockable<char32_t>;
 using u32iobuf_file_lockable = basic_iobuf_file_lockable<char32_t>;
 
+using u32ibuf_file_lockable_nonmovable = basic_ibuf_file_lockable_nonmovable<char32_t>;
+using u32obuf_file_lockable_nonmovable = basic_obuf_file_lockable_nonmovable<char32_t>;
+using u32iobuf_file_lockable_nonmovable = basic_iobuf_file_lockable_nonmovable<char32_t>;
+
 #if defined(_WIN32) || (__has_include(<sys/socket.h>) && __has_include(<netinet/in.h>) && !defined(__wasi__))
 
 template <::std::integral char_type>

include/fast_io_hosted/threads/mutex/impl.h

@@ -24,11 +24,7 @@ using native_mutex =
 	mcf_gthread_mutex
 #elif (defined(_WIN32) && !defined(__WINE__)) || defined(__CYGWIN__)
 #if !defined(__CYGWIN__) && !defined(__BIONIC__) && defined(_WIN32_WINDOWS)
-#if (!defined(_WIN32_WINNT) || _WIN32_WINNT >= 0x0600)
-	win32_srwlock
-#else
 	win32_critical_section
-#endif
 #else
 #if (!defined(_WIN32_WINNT) || _WIN32_WINNT >= 0x0600)
 	rtl_srwlock