mirror of
https://github.com/RGBCube/serenity
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7a1d09ef1a
When there is more than one file descriptor for a file closing one of them should not close the underlying file. Previously this relied on the file's ref_count() but at least for sockets this didn't work reliably.
57 lines
971 B
C++
57 lines
971 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <Kernel/FileSystem/File.h>
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#include <Kernel/FileSystem/FileDescription.h>
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namespace Kernel {
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File::File()
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{
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}
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File::~File()
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{
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}
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KResultOr<NonnullRefPtr<FileDescription>> File::open(int options)
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{
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auto description = FileDescription::create(*this);
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if (!description.is_error()) {
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description.value()->set_rw_mode(options);
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description.value()->set_file_flags(options);
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}
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return description;
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}
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KResult File::close()
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{
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return KSuccess;
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}
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int File::ioctl(FileDescription&, unsigned, FlatPtr)
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{
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return -ENOTTY;
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}
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KResultOr<Region*> File::mmap(Process&, FileDescription&, const Range&, u64, int, bool)
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{
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return ENODEV;
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}
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KResult File::attach(FileDescription&)
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{
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m_attach_count++;
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return KSuccess;
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}
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void File::detach(FileDescription&)
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{
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m_attach_count--;
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}
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}
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