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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* (C) Copyright 2015 Red Hat, Inc.
*/
#ifndef __NM_DEFAULT_H__
#define __NM_DEFAULT_H__
/* makefiles define NETWORKMANAGER_COMPILATION for compiling NetworkManager.
* Depending on which parts are compiled, different values are set. */
#define NM_NETWORKMANAGER_COMPILATION_DEFAULT 0x0001
#define NM_NETWORKMANAGER_COMPILATION_INSIDE_DAEMON 0x0002
#define NM_NETWORKMANAGER_COMPILATION_LIB 0x0004
#define NM_NETWORKMANAGER_COMPILATION_SYSTEMD 0x0008
#define NM_NETWORKMANAGER_COMPILATION_LIB_LEGACY 0x0010
#ifndef NETWORKMANAGER_COMPILATION
/* For convenience, we don't require our Makefile.am to define
* -DNETWORKMANAGER_COMPILATION. As we now include this internal header,
* we know we do a NETWORKMANAGER_COMPILATION. */
#define NETWORKMANAGER_COMPILATION NM_NETWORKMANAGER_COMPILATION_DEFAULT
#endif
/*****************************************************************************/
/* always include these headers for our internal source files. */
#include "nm-glib.h"
#include "nm-version.h"
#include "gsystem-local-alloc.h"
/*****************************************************************************/
#if ((NETWORKMANAGER_COMPILATION) == NM_NETWORKMANAGER_COMPILATION_LIB) || ((NETWORKMANAGER_COMPILATION) == NM_NETWORKMANAGER_COMPILATION_LIB_LEGACY)
#include <glib/gi18n-lib.h>
#else
#include <glib/gi18n.h>
#endif /* NM_NETWORKMANAGER_COMPILATION_LIB || NM_NETWORKMANAGER_COMPILATION_LIB_LEGACY */
/*****************************************************************************/
#if (NETWORKMANAGER_COMPILATION) == NM_NETWORKMANAGER_COMPILATION_INSIDE_DAEMON || (NETWORKMANAGER_COMPILATION) == NM_NETWORKMANAGER_COMPILATION_SYSTEMD
/* the header is used inside src/, where additional
* headers are available. */
#include "nm-types.h"
#include "nm-logging.h"
#endif /* NM_NETWORKMANAGER_COMPILATION_INSIDE_DAEMON */
/*****************************************************************************/
/**
* The boolean type _Bool is C99 while we mostly stick to C89. However, _Bool is too
* convinient to miss and is effectively available in gcc and clang. So, just use it.
*
* Usually, one would include "stdbool.h" to get the "bool" define which aliases
* _Bool. We provide this define here, because we want to make use of it anywhere.
* (also, stdbool.h is again C99).
*
* Using _Bool has advantages over gboolean:
*
* - commonly _Bool is one byte large, instead of gboolean's 4 bytes (because gboolean
* is a typedef for gint). Especially when having boolean fields in a struct, we can
* thereby easily save some space.
*
* - _Bool type guarantees that two "true" expressions compare equal. E.g. the follwing
* will not work:
* gboolean v1 = 1;
* gboolean v2 = 2;
* g_assert_cmpint (v1, ==, v2); // will fail
* For that, we often to use !! to coerce gboolean values to 0 or 1:
* g_assert_cmpint (!!v2, ==, TRUE);
* With _Bool type, this will be handled properly by the compiler.
*
* - For structs, we might want to safe even more space and use bitfields:
* struct s1 {
* gboolean v1:1;
* };
* But the problem here is that gboolean is signed, so that
* v1 will be either 0 or -1 (not 1, TRUE). Thus, the following
* fails:
* struct s1 s = { .v1 = TRUE, };
* g_assert_cmpint (s1.v1, ==, TRUE);
* It will however work just fine with bool/_Bool while retaining the
* notion of having a boolean value.
*
* Also, add the defines for "true" and "false". Those are nicely highlighted by the editor
* as special types, contrary to glib's "TRUE"/"FALSE".
*/
#ifndef bool
#define bool _Bool
#define true 1
#define false 0
#endif
/*****************************************************************************/
#endif /* __NM_DEFAULT_H__ */
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