1 /* scoped_fd, automatically close a file descriptor
3 Copyright (C) 2018-2021 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #ifndef COMMON_SCOPED_FD_H
21 #define COMMON_SCOPED_FD_H
24 #include "filestuff.h"
26 /* A smart-pointer-like class to automatically close a file descriptor. */
31 explicit scoped_fd (int fd
= -1) noexcept
: m_fd (fd
) {}
33 scoped_fd (scoped_fd
&&other
) noexcept
45 scoped_fd
&operator= (scoped_fd
&&other
)
47 if (m_fd
!= other
.m_fd
)
57 DISABLE_COPY_AND_ASSIGN (scoped_fd
);
59 ATTRIBUTE_UNUSED_RESULT
int release () noexcept
66 /* Like release, but return a gdb_file_up that owns the file
67 descriptor. On success, this scoped_fd will be released. On
68 failure, return NULL and leave this scoped_fd in possession of
70 gdb_file_up
to_file (const char *mode
) noexcept
72 gdb_file_up
result (fdopen (m_fd
, mode
));
73 if (result
!= nullptr)
78 int get () const noexcept
87 #endif /* COMMON_SCOPED_FD_H */
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