mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
/* scoped_fd, automatically close a file descriptor
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Copyright (C) 2018-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef COMMON_SCOPED_FD_H
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#define COMMON_SCOPED_FD_H
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#include <unistd.h>
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#include "gdb_file.h"
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/* A smart-pointer-like class to automatically close a file descriptor. */
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class scoped_fd
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{
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public:
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explicit scoped_fd (int fd = -1) noexcept : m_fd (fd) {}
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scoped_fd (scoped_fd &&other) noexcept
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: m_fd (other.m_fd)
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{
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other.m_fd = -1;
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}
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~scoped_fd ()
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{
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if (m_fd >= 0)
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close (m_fd);
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}
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scoped_fd &operator= (scoped_fd &&other)
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{
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if (m_fd != other.m_fd)
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{
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if (m_fd >= 0)
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close (m_fd);
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m_fd = other.m_fd;
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other.m_fd = -1;
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}
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return *this;
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}
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DISABLE_COPY_AND_ASSIGN (scoped_fd);
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ATTRIBUTE_UNUSED_RESULT int release () noexcept
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{
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int fd = m_fd;
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m_fd = -1;
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return fd;
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}
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/* Like release, but return a gdb_file_up that owns the file
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descriptor. On success, this scoped_fd will be released. On
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failure, return NULL and leave this scoped_fd in possession of
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the fd. */
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gdb_file_up to_file (const char *mode) noexcept
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{
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gdb_file_up result (fdopen (m_fd, mode));
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if (result != nullptr)
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m_fd = -1;
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return result;
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}
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int get () const noexcept
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{
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return m_fd;
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}
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private:
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int m_fd;
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};
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#endif /* COMMON_SCOPED_FD_H */
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