e58d86450d
Using g_clear_pointer() didn't trigger G_UNAVAILABLE warnings because it's a macro. Fix the build on older glibs by just pulling in the definition.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* Dan Williams <dcbw@redhat.com>
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2008 - 2011 Red Hat, Inc.
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*/
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#ifndef NM_GLIB_COMPAT_H
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#define NM_GLIB_COMPAT_H
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#include <glib.h>
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#include <glib-object.h>
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#include "nm-gvaluearray-compat.h"
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#if !GLIB_CHECK_VERSION(2,34,0)
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static inline void
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g_type_ensure (GType type)
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{
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if (G_UNLIKELY (type == (GType)-1))
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g_error ("can't happen");
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}
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#define g_clear_pointer(pp, destroy) \
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G_STMT_START { \
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G_STATIC_ASSERT (sizeof *(pp) == sizeof (gpointer)); \
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/* Only one access, please */ \
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gpointer *_pp = (gpointer *) (pp); \
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gpointer _p; \
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/* This assignment is needed to avoid a gcc warning */ \
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GDestroyNotify _destroy = (GDestroyNotify) (destroy); \
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\
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(void) (0 ? (gpointer) *(pp) : 0); \
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do \
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_p = g_atomic_pointer_get (_pp); \
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while G_UNLIKELY (!g_atomic_pointer_compare_and_exchange (_pp, _p, NULL)); \
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\
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if (_p) \
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_destroy (_p); \
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} G_STMT_END
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#endif
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#endif /* NM_GLIB_COMPAT_H */
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