3429092cd1
/dev/fuse was already pollable with poll and select. Add support for kqueue, too. And add tests for polling with poll, select, and kqueue. Sponsored by: The FreeBSD Foundation
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 The FreeBSD Foundation
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*
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* This software was developed by BFF Storage Systems, LLC under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "mockfs.hh"
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#include "utils.hh"
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using namespace testing;
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class Destroy: public FuseTest {};
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/*
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* On unmount the kernel should send a FUSE_DESTROY operation. It should also
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* send FUSE_FORGET operations for all inodes with lookup_count > 0. It's hard
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* to trigger FUSE_FORGET in any way except by unmounting, so this is the only
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* testing that FUSE_FORGET gets.
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*/
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TEST_F(Destroy, ok)
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{
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const char FULLPATH[] = "mountpoint/some_file.txt";
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const char RELPATH[] = "some_file.txt";
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uint64_t ino = 42;
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expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 2);
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expect_forget(1, 1);
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expect_forget(ino, 2);
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expect_destroy(0);
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/*
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* access(2) the file to force a lookup. Access it twice to double its
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* lookup count.
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*/
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ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno);
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ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno);
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/*
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* Unmount, triggering a FUSE_DESTROY and also causing a VOP_RECLAIM
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* for every vnode on this mp, triggering FUSE_FORGET for each of them.
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*/
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m_mock->unmount();
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}
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