sys_fs_fsync implemented

sys_fs_fdatasync implemented as equal function

Utilities/File.h

@@ -60,7 +60,8 @@ namespace fs
 	{
 		virtual ~file_base();
 
-		virtual stat_t stat() = 0;
+		virtual stat_t stat();
+		virtual void sync();
 		virtual bool trunc(u64 length) = 0;
 		virtual u64 read(void* buffer, u64 size) = 0;
 		virtual u64 write(const void* buffer, u64 size) = 0;
@@ -206,6 +207,13 @@ namespace fs
 			return m_file->stat();
 		}
 
+		// Sync file buffers
+		void sync() const
+		{
+			if (!m_file) xnull();
+			return m_file->sync();
+		}
+
 		// Read the data from the file and return the amount of data written in buffer
 		u64 read(void* buffer, u64 count) const
 		{
@@ -488,11 +496,6 @@ namespace fs
 		{
 		}
 
-		stat_t stat() override
-		{
-			fmt::raw_error("fs::container_stream<>::stat(): not supported");
-		}
-
 		bool trunc(u64 length) override
 		{
 			obj.resize(length);