diff options
| author | Michael Biebl <biebl@debian.org> | 2016-01-20 16:26:51 +0100 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2016-01-20 16:26:51 +0100 |
| commit | 494f296a3baab08522617b24b1f126d8f9a17502 (patch) | |
| tree | c8ef32fb0dd1c4ff35a0b38e787abb58692de0cd /shared/nm-default.h | |
| parent | 54f6333410ffd570e62717d9e77c5c987175e397 (diff) | |
Imported Upstream version 1.1.90 upstream/1.1.90
Diffstat (limited to 'shared/nm-default.h')
| -rw-r--r-- | shared/nm-default.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/shared/nm-default.h b/shared/nm-default.h new file mode 100644 index 00000000..045ad8db --- /dev/null +++ b/shared/nm-default.h @@ -0,0 +1,121 @@ +/* -*- 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__ */ |