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##
## YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
##
## Copyright (C) 2002-2010 Aleph One Ltd.
## for Toby Churchill Ltd and Brightstar Engineering
##
## Created by Charles Manning <charles@aleph1.co.uk>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License version 2 as
## published by the Free Software Foundation.
##
from yaffsfs import *
def yaffs_ls(dname):
if dname[-1] != "/": dname = dname + "/"
dc = yaffs_opendir(dname)
if dc != 0 :
sep = yaffs_readdir(dc)
while bool(sep):
se = sep.contents
fullname = dname + se.d_name
#print fullname, " ", se.d_ino," ",ord(se.d_type)
st = yaffs_stat_struct()
result = yaffs_stat(fullname,byref(st))
perms = st.st_mode & 0777
isFile = True if st.st_mode & 0x8000 else False
isDir = True if st.st_mode & 0x4000 else False
if isFile :
print "File ",se.d_ino, hex(perms), st.st_size, fullname
elif isDir :
print "Dir ",se.d_ino, hex(perms), fullname
yaffs_ls(fullname)
else :
print "Other (",hex(st.st_mode),") ",se.d_ino, hex(perms), fullname
sep = yaffs_readdir(dc)
yaffs_closedir(dc)
return 0
else:
print "Could not open directory"
return -1
def yaffs_mkfile(fname,fsize):
fd = yaffs_open(fname,66, 0666)
if fd >= 0:
b = create_string_buffer("",1024)
totalwrite=0
while fsize > 0:
thiswrite = 1024 if fsize > 1024 else fsize
result = yaffs_write(fd,b,thiswrite)
totalwrite += result
fsize -= result
if result != thiswrite:
fsize= 0
return totalwrite
else :
return -1
def yaffs_link_test(dir):
fnamea = dir + '/aaa'
fnameb = dir + '/bbb'
yaffs_unlink(fnamea)
fd = yaffs_open(fnamea,66,0666)
yaffs_link(fnamea,fnameb)
yaffs_ls(dir)
yaffs_unlink(fnamea)
yaffs_ls(dir)
yaffs_unlink(fnameb)
def yaffs_o_excl_test(dir):
fname = dir + '/aaa'
yaffs_unlink(fname)
fd = yaffs_open(fname, 66, 0666)
yaffs_close(fd)
print "Created ", fname, " result ", fd
fdx = yaffs_open(fname, 0301, 0666)
print "Attempt to create with O_EXCL existing file returned ", fdx
yaffs_unlink(fname)
fdx = yaffs_open(fname, 0301, 0666)
print "Attempt to create with O_EXCL non-existing file returned ", fdx
root = "/yaffs2"
yaffs_start_up()
yaffs_mount(root)
yaffs_mkdir(root+"/dd",0666)
h = yaffs_open(root+"/dd/111",66,0666)
yaffs_close(h)
yaffs_ls(root)
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