485 lines
14 KiB
C
485 lines
14 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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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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* Copyright 2008 - 2011 Red Hat, Inc.
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*/
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#ifndef __NM_GLIB_H__
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#define __NM_GLIB_H__
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#include <gio/gio.h>
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#include <string.h>
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#include "gsystem-local-alloc.h"
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#ifdef __clang__
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#undef G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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#undef G_GNUC_END_IGNORE_DEPRECATIONS
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#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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_Pragma("clang diagnostic push") \
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_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
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#define G_GNUC_END_IGNORE_DEPRECATIONS \
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_Pragma("clang diagnostic pop")
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#endif
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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 !GLIB_CHECK_VERSION(2,34,0)
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if (G_UNLIKELY (type == (GType)-1))
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g_error ("can't happen");
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#else
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
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g_type_ensure (type);
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G_GNUC_END_IGNORE_DEPRECATIONS;
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#endif
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}
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#define g_type_ensure __g_type_ensure
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#if !GLIB_CHECK_VERSION(2,34,0)
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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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_p = *_pp; \
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if (_p) \
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{ \
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*_pp = NULL; \
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_destroy (_p); \
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} \
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} G_STMT_END
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/* These are used to clean up the output of test programs; we can just let
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* them no-op in older glib.
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*/
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#define g_test_expect_message(log_domain, log_level, pattern)
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#define g_test_assert_expected_messages()
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#else
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/* We build with -DGLIB_MAX_ALLOWED_VERSION set to 2.32 to make sure we don't
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* accidentally use new API that we shouldn't. But we don't want warnings for
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* the APIs that we emulate above.
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*/
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#define g_test_expect_message(domain, level, format...) \
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G_STMT_START { \
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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g_test_expect_message (domain, level, format); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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} G_STMT_END
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#define g_test_assert_expected_messages_internal(domain, file, line, func) \
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G_STMT_START { \
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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g_test_assert_expected_messages_internal (domain, file, line, func); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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} G_STMT_END
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#endif
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#if GLIB_CHECK_VERSION (2, 35, 0)
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/* For glib >= 2.36, g_type_init() is deprecated.
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* But since 2.35.1 (7c42ab23b55c43ab96d0ac2124b550bf1f49c1ec) this function
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* does nothing. Replace the call with empty statement. */
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#define nm_g_type_init() G_STMT_START { (void) 0; } G_STMT_END
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#else
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#define nm_g_type_init() G_STMT_START { g_type_init (); } G_STMT_END
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#endif
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/* g_test_initialized() is only available since glib 2.36. */
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#if !GLIB_CHECK_VERSION (2, 36, 0)
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#define g_test_initialized() (g_test_config_vars->test_initialized)
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#endif
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/* g_assert_cmpmem() is only available since glib 2.46. */
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#if !GLIB_CHECK_VERSION (2, 45, 7)
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#define g_assert_cmpmem(m1, l1, m2, l2) G_STMT_START {\
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gconstpointer __m1 = m1, __m2 = m2; \
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int __l1 = l1, __l2 = l2; \
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if (__l1 != __l2) \
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g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
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#l1 " (len(" #m1 ")) == " #l2 " (len(" #m2 "))", __l1, "==", __l2, 'i'); \
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else if (memcmp (__m1, __m2, __l1) != 0) \
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g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
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"assertion failed (" #m1 " == " #m2 ")"); \
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} G_STMT_END
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#endif
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/* Rumtime check for glib version. First do a compile time check which
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* (if satisfied) shortcuts the runtime check. */
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static inline gboolean
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nm_glib_check_version (guint major, guint minor, guint micro)
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{
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return GLIB_CHECK_VERSION (major, minor, micro)
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|| ( ( glib_major_version > major)
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|| ( glib_major_version == major
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&& glib_minor_version > minor)
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|| ( glib_major_version == major
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&& glib_minor_version == minor
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&& glib_micro_version < micro));
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}
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/* g_test_skip() is only available since glib 2.38. Add a compatibility wrapper. */
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static inline void
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__nmtst_g_test_skip (const gchar *msg)
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{
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#if GLIB_CHECK_VERSION (2, 38, 0)
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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g_test_skip (msg);
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G_GNUC_END_IGNORE_DEPRECATIONS
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#else
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g_debug ("%s", msg);
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#endif
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}
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#define g_test_skip __nmtst_g_test_skip
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/* g_test_add_data_func_full() is only available since glib 2.34. Add a compatibility wrapper. */
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static inline void
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__g_test_add_data_func_full (const char *testpath,
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gpointer test_data,
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GTestDataFunc test_func,
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GDestroyNotify data_free_func)
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{
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#if GLIB_CHECK_VERSION (2, 34, 0)
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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g_test_add_data_func_full (testpath, test_data, test_func, data_free_func);
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G_GNUC_END_IGNORE_DEPRECATIONS
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#else
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g_return_if_fail (testpath != NULL);
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g_return_if_fail (testpath[0] == '/');
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g_return_if_fail (test_func != NULL);
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g_test_add_vtable (testpath, 0, test_data, NULL,
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(GTestFixtureFunc) test_func,
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(GTestFixtureFunc) data_free_func);
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#endif
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}
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#define g_test_add_data_func_full __g_test_add_data_func_full
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#if !GLIB_CHECK_VERSION (2, 34, 0)
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#define G_DEFINE_QUARK(QN, q_n) \
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GQuark \
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q_n##_quark (void) \
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{ \
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static GQuark q; \
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\
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if G_UNLIKELY (q == 0) \
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q = g_quark_from_static_string (#QN); \
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\
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return q; \
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}
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#endif
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static inline gboolean
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nm_g_hash_table_replace (GHashTable *hash, gpointer key, gpointer value)
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{
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/* glib 2.40 added a return value indicating whether the key already existed
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* (910191597a6c2e5d5d460e9ce9efb4f47d9cc63c). */
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#if GLIB_CHECK_VERSION(2, 40, 0)
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return g_hash_table_replace (hash, key, value);
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#else
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gboolean contained = g_hash_table_contains (hash, key);
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g_hash_table_replace (hash, key, value);
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return !contained;
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#endif
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}
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static inline gboolean
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nm_g_hash_table_insert (GHashTable *hash, gpointer key, gpointer value)
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{
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/* glib 2.40 added a return value indicating whether the key already existed
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* (910191597a6c2e5d5d460e9ce9efb4f47d9cc63c). */
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#if GLIB_CHECK_VERSION(2, 40, 0)
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return g_hash_table_insert (hash, key, value);
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#else
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gboolean contained = g_hash_table_contains (hash, key);
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g_hash_table_insert (hash, key, value);
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return !contained;
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#endif
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}
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static inline gboolean
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nm_g_hash_table_add (GHashTable *hash, gpointer key)
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{
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/* glib 2.40 added a return value indicating whether the key already existed
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* (910191597a6c2e5d5d460e9ce9efb4f47d9cc63c). */
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#if GLIB_CHECK_VERSION(2, 40, 0)
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return g_hash_table_add (hash, key);
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#else
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gboolean contained = g_hash_table_contains (hash, key);
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g_hash_table_add (hash, key);
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return !contained;
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#endif
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}
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#if !GLIB_CHECK_VERSION(2, 40, 0) || defined (NM_GLIB_COMPAT_H_TEST)
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static inline void
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_nm_g_ptr_array_insert (GPtrArray *array,
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gint index_,
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gpointer data)
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{
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g_return_if_fail (array);
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g_return_if_fail (index_ >= -1);
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g_return_if_fail (index_ <= (gint) array->len);
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g_ptr_array_add (array, data);
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if (index_ != -1 && index_ != (gint) (array->len - 1)) {
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memmove (&(array->pdata[index_ + 1]),
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&(array->pdata[index_]),
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(array->len - index_ - 1) * sizeof (gpointer));
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array->pdata[index_] = data;
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}
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}
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#endif
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#if !GLIB_CHECK_VERSION(2, 40, 0)
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#define g_ptr_array_insert(array, index, data) G_STMT_START { _nm_g_ptr_array_insert (array, index, data); } G_STMT_END
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#else
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#define g_ptr_array_insert(array, index, data) \
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G_STMT_START { \
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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g_ptr_array_insert (array, index, data); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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} G_STMT_END
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#endif
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#if !GLIB_CHECK_VERSION (2, 40, 0)
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static inline gboolean
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_g_key_file_save_to_file (GKeyFile *key_file,
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const gchar *filename,
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GError **error)
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{
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gchar *contents;
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gboolean success;
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gsize length;
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g_return_val_if_fail (key_file != NULL, FALSE);
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g_return_val_if_fail (filename != NULL, FALSE);
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g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
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contents = g_key_file_to_data (key_file, &length, NULL);
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g_assert (contents != NULL);
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success = g_file_set_contents (filename, contents, length, error);
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g_free (contents);
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return success;
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}
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#define g_key_file_save_to_file(key_file, filename, error) \
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_g_key_file_save_to_file (key_file, filename, error)
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#else
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#define g_key_file_save_to_file(key_file, filename, error) \
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({ \
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gboolean _success; \
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\
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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_success = g_key_file_save_to_file (key_file, filename, error); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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_success; \
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})
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#endif
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#if GLIB_CHECK_VERSION (2, 36, 0)
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#define g_credentials_get_unix_pid(creds, error) \
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({ \
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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(g_credentials_get_unix_pid) ((creds), (error)); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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})
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#else
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#define g_credentials_get_unix_pid(creds, error) \
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({ \
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struct ucred *native_creds; \
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\
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native_creds = g_credentials_get_native ((creds), G_CREDENTIALS_TYPE_LINUX_UCRED); \
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g_assert (native_creds); \
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native_creds->pid; \
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})
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#endif
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#if !GLIB_CHECK_VERSION(2, 40, 0) || defined (NM_GLIB_COMPAT_H_TEST)
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static inline gpointer *
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_nm_g_hash_table_get_keys_as_array (GHashTable *hash_table,
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guint *length)
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{
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GHashTableIter iter;
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gpointer key, *ret;
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guint i = 0;
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g_return_val_if_fail (hash_table, NULL);
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ret = g_new0 (gpointer, g_hash_table_size (hash_table) + 1);
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g_hash_table_iter_init (&iter, hash_table);
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while (g_hash_table_iter_next (&iter, &key, NULL))
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ret[i++] = key;
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ret[i] = NULL;
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if (length)
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*length = i;
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return ret;
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}
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#endif
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#if !GLIB_CHECK_VERSION(2, 40, 0)
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#define g_hash_table_get_keys_as_array(hash_table, length) \
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({ \
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_nm_g_hash_table_get_keys_as_array (hash_table, length); \
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})
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#else
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#define g_hash_table_get_keys_as_array(hash_table, length) \
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({ \
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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(g_hash_table_get_keys_as_array) ((hash_table), (length)); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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})
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#endif
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#ifndef g_info
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/* g_info was only added with 2.39.2 */
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#define g_info(...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_INFO, \
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__VA_ARGS__)
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#endif
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#if !GLIB_CHECK_VERSION(2, 44, 0)
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static inline gpointer
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g_steal_pointer (gpointer pp)
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{
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gpointer *ptr = (gpointer *) pp;
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gpointer ref;
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ref = *ptr;
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*ptr = NULL;
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return ref;
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}
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/* type safety */
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#define g_steal_pointer(pp) \
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(0 ? (*(pp)) : (g_steal_pointer) (pp))
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#endif
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static inline gboolean
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_nm_g_strv_contains (const gchar * const *strv,
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const gchar *str)
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{
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#if !GLIB_CHECK_VERSION(2, 44, 0)
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g_return_val_if_fail (strv != NULL, FALSE);
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g_return_val_if_fail (str != NULL, FALSE);
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for (; *strv != NULL; strv++) {
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if (g_str_equal (str, *strv))
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return TRUE;
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}
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return FALSE;
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#else
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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return g_strv_contains (strv, str);
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G_GNUC_END_IGNORE_DEPRECATIONS
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#endif
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}
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#define g_strv_contains _nm_g_strv_contains
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static inline GVariant *
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_nm_g_variant_new_take_string (gchar *string)
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{
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#if !GLIB_CHECK_VERSION(2, 36, 0)
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GVariant *value;
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g_return_val_if_fail (string != NULL, NULL);
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g_return_val_if_fail (g_utf8_validate (string, -1, NULL), NULL);
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value = g_variant_new_string (string);
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g_free (string);
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return value;
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#elif !GLIB_CHECK_VERSION(2, 38, 0)
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GVariant *value;
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GBytes *bytes;
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g_return_val_if_fail (string != NULL, NULL);
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g_return_val_if_fail (g_utf8_validate (string, -1, NULL), NULL);
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bytes = g_bytes_new_take (string, strlen (string) + 1);
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value = g_variant_new_from_bytes (G_VARIANT_TYPE_STRING, bytes, TRUE);
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g_bytes_unref (bytes);
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return value;
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#else
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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return g_variant_new_take_string (string);
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G_GNUC_END_IGNORE_DEPRECATIONS
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#endif
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}
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#define g_variant_new_take_string _nm_g_variant_new_take_string
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#if !GLIB_CHECK_VERSION(2, 38, 0)
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_nm_printf (1, 2)
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static inline GVariant *
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_nm_g_variant_new_printf (const char *format_string, ...)
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{
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char *string;
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va_list ap;
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g_return_val_if_fail (format_string, NULL);
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va_start (ap, format_string);
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string = g_strdup_vprintf (format_string, ap);
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va_end (ap);
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return g_variant_new_take_string (string);
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}
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#define g_variant_new_printf(...) _nm_g_variant_new_printf(__VA_ARGS__)
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#else
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#define g_variant_new_printf(...) \
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({ \
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GVariant *_v; \
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\
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
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_v = g_variant_new_printf (__VA_ARGS__); \
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G_GNUC_END_IGNORE_DEPRECATIONS \
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_v; \
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})
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#endif
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#endif /* __NM_GLIB_H__ */
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