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5ff90aee0d
2001-05-29 Sebastian Wilhelmi <wilhelmi@ira.uka.de> * configure.in: Don't bail out, if no C++ compiler is found. Define G_HAVE_ISO_VARARGS only if appropriate. * gmessages.h: Thus we can revert the previous patch.
342 lines
11 KiB
C
342 lines
11 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __G_MESSAGES_H__
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#define __G_MESSAGES_H__
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#include <stdarg.h>
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#include <gtypes.h>
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G_BEGIN_DECLS
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/* calculate a string size, guarranteed to fit format + args.
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*/
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guint g_printf_string_upper_bound (const gchar* format,
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va_list args);
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/* Log level shift offset for user defined
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* log levels (0-7 are used by GLib).
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*/
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#define G_LOG_LEVEL_USER_SHIFT (8)
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/* Glib log levels and flags.
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*/
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typedef enum
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{
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/* log flags */
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G_LOG_FLAG_RECURSION = 1 << 0,
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G_LOG_FLAG_FATAL = 1 << 1,
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/* GLib log levels */
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G_LOG_LEVEL_ERROR = 1 << 2, /* always fatal */
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G_LOG_LEVEL_CRITICAL = 1 << 3,
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G_LOG_LEVEL_WARNING = 1 << 4,
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G_LOG_LEVEL_MESSAGE = 1 << 5,
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G_LOG_LEVEL_INFO = 1 << 6,
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G_LOG_LEVEL_DEBUG = 1 << 7,
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G_LOG_LEVEL_MASK = ~(G_LOG_FLAG_RECURSION | G_LOG_FLAG_FATAL)
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} GLogLevelFlags;
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/* GLib log levels that are considered fatal by default */
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#define G_LOG_FATAL_MASK (G_LOG_FLAG_RECURSION | G_LOG_LEVEL_ERROR)
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typedef void (*GLogFunc) (const gchar *log_domain,
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GLogLevelFlags log_level,
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const gchar *message,
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gpointer user_data);
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/* Logging mechanism
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*/
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GLIB_VAR const gchar *g_log_domain_glib;
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guint g_log_set_handler (const gchar *log_domain,
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GLogLevelFlags log_levels,
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GLogFunc log_func,
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gpointer user_data);
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void g_log_remove_handler (const gchar *log_domain,
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guint handler_id);
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void g_log_default_handler (const gchar *log_domain,
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GLogLevelFlags log_level,
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const gchar *message,
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gpointer unused_data);
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void g_log (const gchar *log_domain,
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GLogLevelFlags log_level,
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const gchar *format,
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...) G_GNUC_PRINTF (3, 4);
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void g_logv (const gchar *log_domain,
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GLogLevelFlags log_level,
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const gchar *format,
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va_list args);
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GLogLevelFlags g_log_set_fatal_mask (const gchar *log_domain,
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GLogLevelFlags fatal_mask);
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GLogLevelFlags g_log_set_always_fatal (GLogLevelFlags fatal_mask);
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#ifndef G_LOG_DOMAIN
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#define G_LOG_DOMAIN ((gchar*) 0)
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#endif /* G_LOG_DOMAIN */
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#ifdef G_HAVE_ISO_VARARGS
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#define g_error(...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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__VA_ARGS__)
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#define g_message(...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_MESSAGE, \
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__VA_ARGS__)
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#define g_critical(...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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__VA_ARGS__)
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#define g_warning(...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_WARNING, \
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__VA_ARGS__)
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#elif defined(G_HAVE_GNUC_VARARGS)
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#define g_error(format...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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format)
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#define g_message(format...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_MESSAGE, \
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format)
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#define g_critical(format...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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format)
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#define g_warning(format...) g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_WARNING, \
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format)
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#else /* no varargs macros */
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static void
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g_error (const gchar *format,
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...)
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{
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va_list args;
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va_start (args, format);
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_ERROR, format, args);
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va_end (args);
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}
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static void
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g_message (const gchar *format,
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...)
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{
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va_list args;
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va_start (args, format);
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, format, args);
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va_end (args);
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}
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static void
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g_critical (const gchar *format,
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...)
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{
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va_list args;
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va_start (args, format);
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, format, args);
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va_end (args);
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}
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static void
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g_warning (const gchar *format,
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...)
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{
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va_list args;
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va_start (args, format);
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_WARNING, format, args);
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va_end (args);
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}
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#endif /* !__GNUC__ */
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typedef void (*GPrintFunc) (const gchar *string);
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void g_print (const gchar *format,
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...) G_GNUC_PRINTF (1, 2);
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GPrintFunc g_set_print_handler (GPrintFunc func);
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void g_printerr (const gchar *format,
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...) G_GNUC_PRINTF (1, 2);
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GPrintFunc g_set_printerr_handler (GPrintFunc func);
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/* deprecated compatibility functions, use g_log_set_handler() instead */
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typedef void (*GErrorFunc) (const gchar *str);
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typedef void (*GWarningFunc) (const gchar *str);
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GErrorFunc g_set_error_handler (GErrorFunc func);
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GWarningFunc g_set_warning_handler (GWarningFunc func);
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GPrintFunc g_set_message_handler (GPrintFunc func);
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/* Provide macros for error handling. The "assert" macros will
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* exit on failure. The "return" macros will exit the current
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* function. Two different definitions are given for the macros
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* if G_DISABLE_ASSERT is not defined, in order to support gcc's
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* __PRETTY_FUNCTION__ capability.
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*/
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#ifdef G_DISABLE_ASSERT
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#define g_assert(expr)
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#define g_assert_not_reached()
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#else /* !G_DISABLE_ASSERT */
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#ifdef __GNUC__
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#define g_assert(expr) G_STMT_START{ \
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if (!(expr)) \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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"file %s: line %d (%s): assertion failed: (%s)", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__, \
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#expr); }G_STMT_END
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#define g_assert_not_reached() G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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"file %s: line %d (%s): should not be reached", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__); }G_STMT_END
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#else /* !__GNUC__ */
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#define g_assert(expr) G_STMT_START{ \
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if (!(expr)) \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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"file %s: line %d: assertion failed: (%s)", \
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__FILE__, \
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__LINE__, \
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#expr); }G_STMT_END
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#define g_assert_not_reached() G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_ERROR, \
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"file %s: line %d: should not be reached", \
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__FILE__, \
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__LINE__); }G_STMT_END
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#endif /* __GNUC__ */
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#endif /* !G_DISABLE_ASSERT */
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#ifdef G_DISABLE_CHECKS
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#define g_return_if_fail(expr)
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#define g_return_val_if_fail(expr,val)
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#define g_return_if_reached() return
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#define g_return_val_if_reached(val) return (val)
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#else /* !G_DISABLE_CHECKS */
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#ifdef __GNUC__
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#define g_return_if_fail(expr) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d (%s): assertion `%s' failed", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__, \
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#expr); \
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return; \
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}; }G_STMT_END
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#define g_return_val_if_fail(expr,val) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d (%s): assertion `%s' failed", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__, \
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#expr); \
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return (val); \
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}; }G_STMT_END
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#define g_return_if_reached() G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d (%s): should not be reached", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__); \
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return; }G_STMT_END
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#define g_return_val_if_reached(val) G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d (%s): should not be reached", \
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__FILE__, \
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__LINE__, \
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__PRETTY_FUNCTION__); \
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return (val); }G_STMT_END
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#else /* !__GNUC__ */
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#define g_return_if_fail(expr) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: assertion `%s' failed", \
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__FILE__, \
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__LINE__, \
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#expr); \
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return; \
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}; }G_STMT_END
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#define g_return_val_if_fail(expr, val) G_STMT_START{ \
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if (!(expr)) \
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{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: assertion `%s' failed", \
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__FILE__, \
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__LINE__, \
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#expr); \
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return (val); \
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}; }G_STMT_END
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#define g_return_if_reached() G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: should not be reached", \
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__FILE__, \
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__LINE__); \
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return; }G_STMT_END
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#define g_return_val_if_reached(val) G_STMT_START{ \
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g_log (G_LOG_DOMAIN, \
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G_LOG_LEVEL_CRITICAL, \
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"file %s: line %d: should not be reached", \
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__FILE__, \
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__LINE__); \
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return (val); }G_STMT_END
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#endif /* !__GNUC__ */
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#endif /* !G_DISABLE_CHECKS */
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G_END_DECLS
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#endif /* __G_MESSAGES_H__ */
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