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from __future__ import print_function
# A Linux-only demo, using set_source() instead of hard-coding the exact layouts
#
import sys
if not sys.platform.startswith('linux'):
raise Exception("Linux-only demo")
# run readdir2_build first, then make sure the shared object is on sys.path
from _readdir2_cffi import ffi, lib
def walk(basefd, path):
print('{', path)
dirfd = lib.openat(basefd, path, 0)
if dirfd < 0:
# error in openat()
return
dir = lib.fdopendir(dirfd)
dirent = ffi.new("struct dirent *")
result = ffi.new("struct dirent **")
while True:
if lib.readdir_r(dir, dirent, result):
# error in readdir_r()
break
if result[0] == ffi.NULL:
break
name = ffi.string(dirent.d_name)
print('%3d %s' % (dirent.d_type, name))
if dirent.d_type == lib.DT_DIR and name != '.' and name != '..':
walk(dirfd, name)
lib.closedir(dir)
print('}')
walk(-1, "/tmp")
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