static void FileExistsExample()
{
FILINFO fno = new FILINFO();
res = Ff.Current.f_stat("/sub1/File2.txt", ref fno);
switch (res)
{
case Ff.FRESULT.FR_OK:
Debug.WriteLine($"Size: {fno.fsize}");
Debug.WriteLine(String.Format("Timestamp: {0}/{1}/{2}, {3}:{4}",
(fno.fdate >> 9) + 1980, fno.fdate >> 5 & 15, fno.fdate & 31,
fno.ftime >> 11, fno.ftime >> 5 & 63));
Debug.WriteLine(String.Format("Attributes: {0}{1}{2}{3}{4}",
(fno.fattrib & AM_DIR) > 0 ? 'D' : '-',
(fno.fattrib & AM_RDO) > 0 ? 'R' : '-',
(fno.fattrib & AM_HID) > 0 ? 'H' : '-',
(fno.fattrib & AM_SYS) > 0 ? 'S' : '-',
(fno.fattrib & AM_ARC) > 0 ? 'A' : '-'));
break;
case Ff.FRESULT.FR_NO_FILE:
Debug.WriteLine("File does not exist");
break;
default:
Debug.WriteLine($"An error occured. {res.ToString()}");
break;
}
}
private static FRESULT Scan_Files(string path)
{
FRESULT res;
FILINFO fno = new FILINFO();
DIR dir = new DIR();
byte[] buff = new byte[256];
buff = path.ToNullTerminatedByteArray();
res = Ff.Current.f_opendir(ref dir, buff); /* Open the directory */
if (res == FRESULT.FR_OK)
{
for (; ;)
{
res = Ff.Current.f_readdir(ref dir, ref fno); /* Read a directory item */
if (res != FRESULT.FR_OK || fno.fname[0] == 0)
{
break; /* Break on error or end of dir */
}
if ((fno.fattrib & AM_DIR) > 0 && !((fno.fattrib & AM_SYS) > 0 || (fno.fattrib & AM_HID) > 0))
{
/* It is a directory */
var newpath = path + "/" + fno.fname.ToStringNullTerminationRemoved();
Debug.WriteLine($"Directory: {path}/{fno.fname.ToStringNullTerminationRemoved()}");
res = Scan_Files(newpath); /* Enter the directory */
if (res != FRESULT.FR_OK)
{
break;
}
}
else
{
/* It is a file. */
Debug.WriteLine($"File: {path}/{fno.fname.ToStringNullTerminationRemoved()}");
}
}
Ff.Current.f_closedir(ref dir);
}
return(res);
}
internal static extern FRESULT f_stat(byte* path, FILINFO* fno);
internal static extern void FILINFOFree(FILINFO* filinfo);