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################################################################################
# Copyright 2018-2022, Barcelona Supercomputing Center (BSC), Spain #
# Copyright 2015-2022, Johannes Gutenberg Universitaet Mainz, Germany #
# #
# This software was partially supported by the #
# EC H2020 funded project NEXTGenIO (Project ID: 671951, www.nextgenio.eu). #
# #
# This software was partially supported by the #
# ADA-FS project under the SPPEXA project funded by the DFG. #
# #
# This file is part of GekkoFS. #
# #
# GekkoFS is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# GekkoFS is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with GekkoFS. If not, see <https://www.gnu.org/licenses/>. #
# #
# SPDX-License-Identifier: GPL-3.0-or-later #
################################################################################
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import harness
from pathlib import Path
import errno
import stat
import os
import ctypes
import sh
import sys
import pytest
from harness.logger import logger
nonexisting = "nonexisting"
#TESTING LSEEK
#SEEK_SET: int
#SEEK_CUR: int
#SEEK_END: int
# 1. LSeek on empty file
# 2. LSeek on non-empty file
#@pytest.mark.xfail(reason="invalid errno returned on success")
def test_lseek(gkfs_daemon, gkfs_client):
"""Test several statx commands"""
topdir = gkfs_daemon.mountdir / "top"
longer = Path(topdir.parent, topdir.name + "_plus")
file_a = topdir / "file_a"
# create topdir
ret = gkfs_client.mkdir(
topdir,
stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
assert ret.retval == 0
# test stat on existing dir
ret = gkfs_client.stat(topdir)
assert ret.retval == 0
assert stat.S_ISDIR(ret.statbuf.st_mode)
ret = gkfs_client.open(file_a,
os.O_CREAT,
stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
assert ret.retval != -1
# LSeek on empty file
ret = gkfs_client.lseek(file_a, 0, os.SEEK_SET)
assert ret.retval == 0
ret = gkfs_client.lseek(file_a, -1, os.SEEK_SET)
assert ret.retval == -1
# We can go further an empty file
ret = gkfs_client.lseek(file_a, 5, os.SEEK_SET)
assert ret.retval == 5
ret = gkfs_client.lseek(file_a, 2, os.SEEK_CUR)
assert ret.retval == 2
# Size needs to be 0
ret = gkfs_client.stat(file_a)
assert ret.retval == 0
assert (stat.S_ISDIR(ret.statbuf.st_mode)==0)
assert (ret.statbuf.st_size == 0)
# next commands write at the end of the file (pos0), as the filedescriptor is not shared
buf = b'42'
ret = gkfs_client.write(file_a, buf, 2)
assert ret.retval == 2
# Size should be 2
ret = gkfs_client.stat(file_a)
assert ret.retval == 0
assert (stat.S_ISDIR(ret.statbuf.st_mode)==0)
assert (ret.statbuf.st_size == 2)
ret = gkfs_client.lseek(file_a, 0, os.SEEK_END)
assert ret.retval == 2 #FAILS
ret = gkfs_client.lseek(file_a, -2, os.SEEK_END)
assert ret.retval == 0 #FAILS
ret = gkfs_client.lseek(file_a, -3, os.SEEK_END)
assert ret.retval == -1 #FAILS
assert ret.errno == 22
ret = gkfs_client.lseek(file_a, 0, os.SEEK_DATA)
assert ret.retval == -1
assert ret.errno == errno.EINVAL
ret = gkfs_client.lseek(file_a, 0, os.SEEK_HOLE)
assert ret.retval == -1
assert ret.errno == errno.EINVAL
ret = gkfs_client.lseek(file_a, 0, 666)
assert ret.retval == -1
assert ret.errno == errno.EINVAL