xapian-core
1.4.26
common
fd.h
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/* Copyright (C) 2011,2012 Olly Betts
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef XAPIAN_INCLUDED_FD_H
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#define XAPIAN_INCLUDED_FD_H
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#include "
safeunistd.h
"
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class
FD
{
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int
fd
;
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FD
(
const
FD
&) =
delete
;
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FD
&
operator=
(
const
FD
&) =
delete
;
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public
:
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FD
() : fd(-1) { }
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FD
(
int
fd_) : fd(fd_) { }
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~FD
() {
if
(fd != -1)
::close
(fd); }
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FD
&
operator=
(
int
fd_) {
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if
(fd != -1)
::close
(fd);
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fd = fd_;
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return
*
this
;
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}
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operator
int()
const
{
return
fd
; }
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int
close
() {
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// Don't check for -1 here, so that close(FD) sets errno as close(int)
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// would.
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int
fd_to_close =
fd
;
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fd = -1;
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return ::close
(fd_to_close);
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}
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};
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inline
int
close
(
FD
&
fd
) {
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return
fd.
close
();
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}
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#endif
close
int close(FD &fd)
Definition:
fd.h:63
FD::close
int close()
Definition:
fd.h:54
FD::FD
FD(int fd_)
Definition:
fd.h:42
FD::fd
int fd
Definition:
fd.h:31
FD::operator=
FD & operator=(int fd_)
Definition:
fd.h:46
FD
Definition:
fd.h:30
FD::operator=
FD & operator=(const FD &)=delete
Prevent assignment between FD objects.
FD::~FD
~FD()
Definition:
fd.h:44
safeunistd.h
<unistd.h>, but with compat.
FD::FD
FD()
Definition:
fd.h:40
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