diff options
Diffstat (limited to 'sdk-modifications/libsrc/fs/fatfile_ex.c')
-rwxr-xr-x | sdk-modifications/libsrc/fs/fatfile_ex.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/sdk-modifications/libsrc/fs/fatfile_ex.c b/sdk-modifications/libsrc/fs/fatfile_ex.c deleted file mode 100755 index aa23fb3..0000000 --- a/sdk-modifications/libsrc/fs/fatfile_ex.c +++ /dev/null @@ -1,47 +0,0 @@ -#include <fcntl.h> -#include <string.h> -#include <errno.h> -#include <ctype.h> -#include <unistd.h> -#include <stdio.h> -#include <iorpg.h> - -#include "cache.h" -#include "file_allocation_table.h" -#include "bit_ops.h" -#include "filetime.h" -#include "fatfile.h"
- -// origin fread/fwrite do not take advantage of continuous read/write function of SD/NAND, -// it looks like the third parameter to _FAT_read_r()/_FAT_write_r() is a fixed '2' -// so they are much slower than these two.... - -// due to behavior of _FAT_read_r()/_FAT_write_r(), -// FAT should have a at least 8192 cluster size to get better performance, -// 16K or larger cluster size can get the best performance. - - - -int freadex( void * buffer, int _size, int _n, FILE * f ) -{ - if( 0 == _n ) - return 0; - dbg_printf("freadx %d\n", _n ); - struct _reent r; - int ret = _FAT_read_r( &r, (int)f->_file + 8, buffer, _size * _n ); - errno = r._errno; - return ret; -} - - -int fwriteex( const void * buffer, int _size, int _n, FILE * f ) -{ - if( 0 == _n ) - return 0; - dbg_printf("fwritex new %d\n", _n ); - struct _reent r; - int ret = _FAT_write_r( &r, (int)f->_file + 8, buffer, _size * _n ); - errno = r._errno; - return ret; -} - |