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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2012,2015 Colin Walters <walters@verbum.org>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#pragma once
#include <gio/gio.h>
#include <errno.h>
G_BEGIN_DECLS
/**
* glnx_unref_object:
*
* Call g_object_unref() on a variable location when it goes out of
* scope. Note that unlike g_object_unref(), the variable may be
* %NULL.
*/
#define glnx_unref_object __attribute__ ((cleanup(glnx_local_obj_unref)))
static inline void
glnx_local_obj_unref (void *v)
{
GObject *o = *(GObject **)v;
if (o)
g_object_unref (o);
}
#define glnx_unref_object __attribute__ ((cleanup(glnx_local_obj_unref)))
static inline int
glnx_steal_fd (int *fdp)
{
int fd = *fdp;
*fdp = -1;
return fd;
}
/**
* glnx_close_fd:
* @fdp: Pointer to fd
*
* Effectively `close (glnx_steal_fd (&fd))`. Also
* asserts that `close()` did not raise `EBADF` - encountering
* that error is usually a critical bug in the program.
*/
static inline void
glnx_close_fd (int *fdp)
{
int errsv;
g_assert (fdp);
int fd = glnx_steal_fd (fdp);
if (fd >= 0)
{
errsv = errno;
if (close (fd) < 0)
g_assert (errno != EBADF);
errno = errsv;
}
}
/**
* glnx_fd_close:
*
* Deprecated in favor of `glnx_autofd`.
*/
#define glnx_fd_close __attribute__((cleanup(glnx_close_fd)))
/**
* glnx_autofd:
*
* Call close() on a variable location when it goes out of scope.
*/
#define glnx_autofd __attribute__((cleanup(glnx_close_fd)))
G_END_DECLS
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