NetworkManager/include/nm-glib-compat.h
Thomas Haller fb7b08388e glib-compat: fix compatibility wrapper for g_type_ensure()
The previous implementaiton of the compatibility wrapper failed
with clang when used inside a macro. This seems like a compiler
error not to ignore the deprecation. Workaround by refactoring
the g_type_ensure() wrapper.

Signed-off-by: Thomas Haller <thaller@redhat.com>
2014-08-25 22:05:23 +02:00

154 lines
4.4 KiB
C

/* -*- 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__ */