/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright 2008 - 2011 Red Hat, Inc.
 */

#ifndef __NM_GLIB_COMPAT_H__
#define __NM_GLIB_COMPAT_H__


#include <glib.h>
#include <glib-object.h>


#ifdef __clang__

#undef G_GNUC_BEGIN_IGNORE_DEPRECATIONS
#undef G_GNUC_END_IGNORE_DEPRECATIONS

#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
    _Pragma("clang diagnostic push") \
    _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")

#define G_GNUC_END_IGNORE_DEPRECATIONS \
    _Pragma("clang diagnostic pop")

#endif


#include "nm-gvaluearray-compat.h"


static inline void
__g_type_ensure (GType type)
{
#if !GLIB_CHECK_VERSION(2,34,0)
	if (G_UNLIKELY (type == (GType)-1))
		g_error ("can't happen");
#else
	G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
	g_type_ensure (type);
	G_GNUC_END_IGNORE_DEPRECATIONS;
#endif
}
#define g_type_ensure __g_type_ensure

#if !GLIB_CHECK_VERSION(2,34,0)

#define g_clear_pointer(pp, destroy)	  \
	G_STMT_START { \
		G_STATIC_ASSERT (sizeof *(pp) == sizeof (gpointer)); \
		/* Only one access, please */ \
		gpointer *_pp = (gpointer *) (pp); \
		gpointer _p; \
		/* This assignment is needed to avoid a gcc warning */ \
		GDestroyNotify _destroy = (GDestroyNotify) (destroy); \
	  \
		(void) (0 ? (gpointer) *(pp) : 0); \
		do \
			_p = g_atomic_pointer_get (_pp); \
		while G_UNLIKELY (!g_atomic_pointer_compare_and_exchange (_pp, _p, NULL)); \
	  \
		if (_p) \
			_destroy (_p); \
	} G_STMT_END

/* These are used to clean up the output of test programs; we can just let
 * them no-op in older glib.
 */
#define g_test_expect_message(log_domain, log_level, pattern)
#define g_test_assert_expected_messages()

#else

/* We build with -DGLIB_MAX_ALLOWED_VERSION set to 2.32 to make sure we don't
 * accidentally use new API that we shouldn't. But we don't want warnings for
 * the APIs that we emulate above.
 */

#define g_test_expect_message(domain, level, format...) \
	G_STMT_START { \
		G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
		g_test_expect_message (domain, level, format); \
		G_GNUC_END_IGNORE_DEPRECATIONS \
	} G_STMT_END

#define g_test_assert_expected_messages_internal(domain, file, line, func) \
	G_STMT_START { \
		G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
		g_test_assert_expected_messages_internal (domain, file, line, func); \
		G_GNUC_END_IGNORE_DEPRECATIONS \
	} G_STMT_END

#endif

/* g_test_initialized() is only available since glib 2.36. */
#if !GLIB_CHECK_VERSION (2, 36, 0)
#define g_test_initialized() (g_test_config_vars->test_initialized)
#endif

/* g_test_skip() is only available since glib 2.38. Add a compatibility wrapper. */
inline static void
__nmtst_g_test_skip (const gchar *msg)
{
#if GLIB_CHECK_VERSION (2, 38, 0)
	G_GNUC_BEGIN_IGNORE_DEPRECATIONS
	g_test_skip (msg);
	G_GNUC_END_IGNORE_DEPRECATIONS
#else
	g_debug ("%s", msg);
#endif
}
#define g_test_skip __nmtst_g_test_skip


/* g_test_add_data_func_full() is only available since glib 2.34. Add a compatibility wrapper. */
inline static void
__g_test_add_data_func_full (const char     *testpath,
                             gpointer        test_data,
                             GTestDataFunc   test_func,
                             GDestroyNotify  data_free_func)
{
#if GLIB_CHECK_VERSION (2, 34, 0)
	G_GNUC_BEGIN_IGNORE_DEPRECATIONS
	g_test_add_data_func_full (testpath, test_data, test_func, data_free_func);
	G_GNUC_END_IGNORE_DEPRECATIONS
#else
	g_return_if_fail (testpath != NULL);
	g_return_if_fail (testpath[0] == '/');
	g_return_if_fail (test_func != NULL);

	g_test_add_vtable (testpath, 0, test_data, NULL,
	                   (GTestFixtureFunc) test_func,
	                   (GTestFixtureFunc) data_free_func);
#endif
}
#define g_test_add_data_func_full __g_test_add_data_func_full


#endif  /* __NM_GLIB_COMPAT_H__ */