/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2015 Red Hat, Inc. */ #ifndef __NM_DEFAULT_STD_H__ #define __NM_DEFAULT_STD_H__ #include "nm-networkmanager-compilation.h" #ifdef NETWORKMANAGER_COMPILATION #error Dont define NETWORKMANAGER_COMPILATION #endif #ifndef G_LOG_DOMAIN #error Define G_LOG_DOMAIN #endif /*****************************************************************************/ #define NETWORKMANAGER_COMPILATION 0 /*****************************************************************************/ /* always include these headers for our internal source files. */ #ifndef ___CONFIG_H__ #define ___CONFIG_H__ #include #endif #include "config-extra.h" /* for internal compilation we don't want the deprecation macros * to be in effect. Define the widest range of versions to effectively * disable deprecation checks */ #define NM_VERSION_MIN_REQUIRED NM_VERSION_0_9_8 #ifndef NM_MORE_ASSERTS #define NM_MORE_ASSERTS 0 #endif #if NM_MORE_ASSERTS == 0 /* The cast macros like NM_TYPE() are implemented via G_TYPE_CHECK_INSTANCE_CAST() * and _G_TYPE_CIC(). The latter, by default performs runtime checks of the type * by calling g_type_check_instance_cast(). * This check has a certain overhead without being helpful. * * Example 1: * static void foo (NMType *obj) * { * access_obj_without_check (obj); * } * foo ((NMType *) obj); * // There is no runtime check and passing an invalid pointer * // leads to a crash. * * Example 2: * static void foo (NMType *obj) * { * access_obj_without_check (obj); * } * foo (NM_TYPE (obj)); * // There is a runtime check which prints a g_warning(), but that doesn't * // avoid the crash as NM_TYPE() cannot do anything then passing on the * // invalid pointer. * * Example 3: * static void foo (NMType *obj) * { * g_return_if_fail (NM_IS_TYPE (obj)); * access_obj_without_check (obj); * } * foo ((NMType *) obj); * // There is a runtime check which prints a g_critical() which also avoids * // the crash. That is actually helpful to catch bugs and avoid crashes. * * Example 4: * static void foo (NMType *obj) * { * g_return_if_fail (NM_IS_TYPE (obj)); * access_obj_without_check (obj); * } * foo (NM_TYPE (obj)); * // The runtime check is performed twice, with printing a g_warning() and * // a g_critical() and avoiding the crash. * * Example 3 is how it should be done. Type checks in NM_TYPE() are pointless. * Disable them for our production builds. */ #ifndef G_DISABLE_CAST_CHECKS #define G_DISABLE_CAST_CHECKS #endif #endif /*****************************************************************************/ #include /*****************************************************************************/ #endif /* __NM_DEFAULT_STD_H__ */