NetworkManager/shared/nm-default.h
Thomas Haller 22ef6a507a build: refine the NETWORKMANAGER_COMPILATION define
Note that:

 - we compile some source files multiple times. Most notably those
   under "shared/".

 - we include a default header "shared/nm-default.h" in every source
   file. This header is supposed to setup a common environment by defining
   and including parts that are commonly used. As we always include the
   same header, the header must behave differently depending
   one whether the compilation is for libnm-core, NetworkManager or
   libnm-glib. E.g. it must include <glib/gi18n.h> or <glib/gi18n-lib.h>
   depending on whether we compile a library or an application.

For that, the source files need the NETWORKMANAGER_COMPILATION #define
to behave accordingly.

Extend the define to be composed of flags. These flags are all named
NM_NETWORKMANAGER_COMPILATION_WITH_*, they indicate which part of the
build are available. E.g. when building libnm-core.la itself, then
WITH_LIBNM_CORE, WITH_LIBNM_CORE_INTERNAL, and WITH_LIBNM_CORE_PRIVATE
are available. When building NetworkManager, WITH_LIBNM_CORE_PRIVATE
is not available but the internal parts are still accessible. When
building nmcli, only WITH_LIBNM_CORE (the public part) is available.
This granularily controls the build.
2018-01-08 12:38:53 +01:00

288 lines
12 KiB
C

/* -*- 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__
#define NM_NETWORKMANAGER_COMPILATION_WITH_GLIB (1 << 0)
#define NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB (1 << 1)
#define NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_PROG (1 << 2)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM (1 << 3)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_PRIVATE (1 << 4)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE (1 << 5)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_INTERNAL (1 << 6)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_PRIVATE (1 << 7)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_UTIL (1 << 8)
#define NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_GLIB (1 << 9)
#define NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON (1 << 10)
#define NM_NETWORKMANAGER_COMPILATION_WITH_SYSTEMD (1 << 11)
#define NM_NETWORKMANAGER_COMPILATION_LIBNM_CORE ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_PRIVATE \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_INTERNAL \
)
#define NM_NETWORKMANAGER_COMPILATION_LIBNM ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_PRIVATE \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_INTERNAL \
)
#define NM_NETWORKMANAGER_COMPILATION_LIBNM_UTIL ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_UTIL \
)
#define NM_NETWORKMANAGER_COMPILATION_LIBNM_GLIB ( 0 \
| NM_NETWORKMANAGER_COMPILATION_LIBNM_UTIL \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_GLIB \
)
#define NM_NETWORKMANAGER_COMPILATION_CLIENT ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_PROG \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE \
)
#define NM_NETWORKMANAGER_COMPILATION_DAEMON ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_PROG \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE \
| NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_INTERNAL \
| NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON \
)
#define NM_NETWORKMANAGER_COMPILATION_SYSTEMD ( 0 \
| NM_NETWORKMANAGER_COMPILATION_DAEMON \
| NM_NETWORKMANAGER_COMPILATION_WITH_SYSTEMD \
)
#define NM_NETWORKMANAGER_COMPILATION_GLIB ( 0 \
| NM_NETWORKMANAGER_COMPILATION_WITH_GLIB \
)
#ifndef NETWORKMANAGER_COMPILATION
#error Define NETWORKMANAGER_COMPILATION accordingly
#endif
#ifndef G_LOG_DOMAIN
#if defined(NETWORKMANAGER_COMPILATION_TEST)
#define G_LOG_DOMAIN "test"
#elif NETWORKMANAGER_COMPILATION & NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON
#define G_LOG_DOMAIN "NetworkManager"
#else
#error Need to define G_LOG_DOMAIN
#endif
#elif defined (NETWORKMANAGER_COMPILATION_TEST) || (NETWORKMANAGER_COMPILATION & NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON)
#error Do not define G_LOG_DOMAIN with NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON
#endif
/*****************************************************************************/
/* always include these headers for our internal source files. */
#ifndef ___CONFIG_H__
#define ___CONFIG_H__
#include <config.h>
#endif
/* 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_MAX_ALLOWED NM_VERSION_NEXT_STABLE
#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 <stdlib.h>
/*****************************************************************************/
#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_GLIB
#include <glib.h>
#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_PROG
#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB
#error Cannot define NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_PROG and NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB
#endif
#include <glib/gi18n.h>
#elif (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_GLIB_I18N_LIB
#include <glib/gi18n-lib.h>
#endif
/*****************************************************************************/
#if NM_MORE_ASSERTS == 0
/* glib assertions (g_return_*(), g_assert*()) contain a textual representation
* of the checked statement. This part of the assertion blows up the size of the
* binary. Unless we compile a debug-build with NM_MORE_ASSERTS, drop these
* parts. Note that the failed assertion still prints the file and line where the
* assertion fails. That shall suffice. */
static inline void
_nm_g_return_if_fail_warning (const char *log_domain,
const char *file,
int line)
{
char file_buf[256 + 15];
g_snprintf (file_buf, sizeof (file_buf), "((%s:%d))", file, line);
g_return_if_fail_warning (log_domain, file_buf, "<dropped>");
}
#define g_return_if_fail_warning(log_domain, pretty_function, expression) \
_nm_g_return_if_fail_warning (log_domain, __FILE__, __LINE__)
#define g_assertion_message_expr(domain, file, line, func, expr) \
g_assertion_message_expr(domain, file, line, "<unknown-fcn>", (expr) ? "<dropped>" : NULL)
#undef g_return_val_if_reached
#define g_return_val_if_reached(val) \
G_STMT_START { \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d (%s): should not be reached", \
__FILE__, \
__LINE__, \
"<dropped>"); \
return (val); \
} G_STMT_END
#undef g_return_if_reached
#define g_return_if_reached() \
G_STMT_START { \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d (%s): should not be reached", \
__FILE__, \
__LINE__, \
"<dropped>"); \
return; \
} G_STMT_END
#define NM_ASSERT_G_RETURN_EXPR(expr) "<dropped>"
#define NM_ASSERT_NO_MSG 1
#else
#define NM_ASSERT_G_RETURN_EXPR(expr) ""expr""
#define NM_ASSERT_NO_MSG 0
#endif
/*****************************************************************************/
#include "nm-utils/nm-macros-internal.h"
#include "nm-utils/nm-shared-utils.h"
#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_UTIL
/* no hash-utils in legacy code. */
#else
#include "nm-utils/nm-hash-utils.h"
#endif
/*****************************************************************************/
#if (NETWORKMANAGER_COMPILATION) & (NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE | NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_UTIL)
#include "nm-version.h"
#endif
/*****************************************************************************/
#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_DAEMON
#include "nm-types.h"
#include "nm-logging.h"
#endif
#if ((NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM) && !((NETWORKMANAGER_COMPILATION) & (NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_PRIVATE | NM_NETWORKMANAGER_COMPILATION_WITH_LIBNM_CORE_INTERNAL))
#include "NetworkManager.h"
#endif
#endif /* NM_NETWORKMANAGER_COMPILATION_WITH_GLIB */
/*****************************************************************************/
#endif /* __NM_DEFAULT_H__ */