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glib/gmessages.c
Tim Janik 0b42c37e7d check for all three inline keywords individually. 
Mon Sep  7 07:53:21 1998  Tim Janik  <timj@gtk.org>

        * configure.in: check for all three inline keywords individually.

        * glib.h: inlining hassle. for compilers that don't allow the `inline'
        keyword, mostly because of strict ANSI C compliance or dumbness, we try
        to fall back to either `__inline__' or `__inline'.
        we define G_CAN_INLINE, if the compiler seems to be actually *capable*
        to do function inlining, in which case inline function bodys do make
        sense. we also define G_INLINE_FUNC to properly export the function
        prototypes if no inlinig can be performed. we special case most of the
        stuff, so inline functions can have a normal implementation by defining
        G_INLINE_FUNC to extern and G_CAN_INLINE to 1.

        * ltconfig: (compiler PIC flag test): special case linux for non
        aout systems to honour lcc's position independant code (cases
        "linux*aout)" and "linux*)" got added). (this needs to go into
        libtool which does an advanced test, checking for __LCC__).

        * autogen.sh: take $CC=lcc into account by invoking automake with
        --include-deps so lcc isn't scared by gcc's auto-dependancy
        generation code. care about $ACLOCAL_FLAGS. optionally feature
        autoheader.

        * minor fixups in other places to cure some of lcc's warnings.
1998-09-07 09:43:54 +00:00

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/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "glib.h"
/* --- structures --- */
typedef struct _GLogDomain GLogDomain;
typedef struct _GLogHandler GLogHandler;
struct _GLogDomain
{
gchar *log_domain;
GLogLevelFlags fatal_mask;
GLogHandler *handlers;
GLogDomain *next;
};
struct _GLogHandler
{
guint id;
GLogLevelFlags log_level;
GLogFunc log_func;
gpointer data;
GLogHandler *next;
};
/* --- variables --- */
const gchar *g_log_domain_glib = "GLib";
static GLogDomain *g_log_domains = NULL;
static GLogLevelFlags g_log_always_fatal = G_LOG_FATAL_MASK;
static GPrintFunc glib_print_func = NULL;
static GPrintFunc glib_printerr_func = NULL;
static GErrorFunc glib_error_func = NULL;
static GWarningFunc glib_warning_func = NULL;
static GPrintFunc glib_message_func = NULL;
/* --- functions --- */
static inline GLogDomain*
g_log_find_domain (const gchar *log_domain)
{
register GLogDomain *domain;
domain = g_log_domains;
while (domain)
{
if (strcmp (domain->log_domain, log_domain) == 0)
return domain;
domain = domain->next;
}
return NULL;
}
static inline GLogDomain*
g_log_domain_new (const gchar *log_domain)
{
register GLogDomain *domain;
domain = g_new (GLogDomain, 1);
domain->log_domain = g_strdup (log_domain);
domain->fatal_mask = G_LOG_FATAL_MASK;
domain->handlers = NULL;
domain->next = g_log_domains;
g_log_domains = domain;
return domain;
}
static inline void
g_log_domain_check_free (GLogDomain *domain)
{
if (domain->fatal_mask == G_LOG_FATAL_MASK &&
domain->handlers == NULL)
{
register GLogDomain *last, *work;
last = NULL;
work = g_log_domains;
while (work)
{
if (work == domain)
{
if (last)
last->next = domain->next;
else
g_log_domains = domain->next;
g_free (domain->log_domain);
g_free (domain);
break;
}
work = work->next;
}
}
}
static inline GLogFunc
g_log_domain_get_handler (GLogDomain *domain,
GLogLevelFlags log_level,
gpointer *data)
{
if (domain && log_level)
{
register GLogHandler *handler;
handler = domain->handlers;
while (handler)
{
if ((handler->log_level & log_level) == log_level)
{
*data = handler->data;
return handler->log_func;
}
handler = handler->next;
}
}
return g_log_default_handler;
}
GLogLevelFlags
g_log_set_always_fatal (GLogLevelFlags fatal_mask)
{
GLogLevelFlags old_mask;
/* restrict the global mask to levels that are known to glib */
fatal_mask &= (1 << G_LOG_LEVEL_USER_SHIFT) - 1;
/* force errors to be fatal */
fatal_mask |= G_LOG_LEVEL_ERROR;
/* remove bogus flag */
fatal_mask &= ~G_LOG_FLAG_FATAL;
old_mask = g_log_always_fatal;
g_log_always_fatal = fatal_mask;
return old_mask;
}
GLogLevelFlags
g_log_set_fatal_mask (const gchar *log_domain,
GLogLevelFlags fatal_mask)
{
GLogLevelFlags old_flags;
register GLogDomain *domain;
if (!log_domain)
log_domain = "";
/* force errors to be fatal */
fatal_mask |= G_LOG_LEVEL_ERROR;
/* remove bogus flag */
fatal_mask &= ~G_LOG_FLAG_FATAL;
domain = g_log_find_domain (log_domain);
if (!domain)
domain = g_log_domain_new (log_domain);
old_flags = domain->fatal_mask;
domain->fatal_mask = fatal_mask;
g_log_domain_check_free (domain);
return old_flags;
}
guint
g_log_set_handler (const gchar *log_domain,
GLogLevelFlags log_levels,
GLogFunc log_func,
gpointer user_data)
{
register GLogDomain *domain;
register GLogHandler *handler;
static guint handler_id = 0;
g_return_val_if_fail ((log_levels & G_LOG_LEVEL_MASK) != 0, 0);
g_return_val_if_fail (log_func != NULL, 0);
if (!log_domain)
log_domain = "";
domain = g_log_find_domain (log_domain);
if (!domain)
domain = g_log_domain_new (log_domain);
handler = g_new (GLogHandler, 1);
handler->id = ++handler_id;
handler->log_level = log_levels;
handler->log_func = log_func;
handler->data = user_data;
handler->next = domain->handlers;
domain->handlers = handler;
return handler_id;
}
void
g_log_remove_handler (const gchar *log_domain,
guint handler_id)
{
register GLogDomain *domain;
g_return_if_fail (handler_id > 0);
if (!log_domain)
log_domain = "";
domain = g_log_find_domain (log_domain);
if (domain)
{
register GLogHandler *work, *last;
last = NULL;
work = domain->handlers;
while (work)
{
if (work->id == handler_id)
{
if (last)
last->next = work->next;
else
domain->handlers = work->next;
g_free (work);
g_log_domain_check_free (domain);
return;
}
work = work->next;
}
}
g_warning ("g_log_remove_handler(): could not find handler with id `%d' for domain \"%s\"",
handler_id,
log_domain);
}
void
g_logv (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *format,
va_list args1)
{
va_list args2;
gchar buffer[1025];
register gint i;
log_level &= G_LOG_LEVEL_MASK;
if (!log_level)
return;
/* we use a stack buffer of fixed size, because we might get called
* recursively.
*/
G_VA_COPY (args2, args1);
if (g_printf_string_upper_bound (format, args1) < 1024)
vsprintf (buffer, format, args2);
else
{
/* since we might be out of memory, we can't use g_vsnprintf(). */
#ifdef HAVE_VSNPRINTF
vsnprintf (buffer, 1024, format, args2);
#else /* !HAVE_VSNPRINTF */
/* we are out of luck here */
strncpy (buffer, format, 1024);
#endif /* !HAVE_VSNPRINTF */
buffer[1024] = 0;
}
va_end (args2);
for (i = g_bit_nth_msf (log_level, -1); i >= 0; i = g_bit_nth_msf (log_level, i))
{
register GLogLevelFlags test_level;
test_level = 1 << i;
if (log_level & test_level)
{
static guint g_log_depth = 0;
GLogDomain *domain;
GLogFunc log_func;
gpointer data = NULL;
domain = g_log_find_domain (log_domain ? log_domain : "");
if (g_log_depth++)
test_level |= G_LOG_FLAG_RECURSION;
if ((((domain ? domain->fatal_mask : G_LOG_FATAL_MASK) | g_log_always_fatal) &
test_level) != 0)
test_level |= G_LOG_FLAG_FATAL;
log_func = g_log_domain_get_handler (domain, test_level, &data);
log_func (log_domain, test_level, buffer, data);
/* *domain can be cluttered now */
if (test_level & G_LOG_FLAG_FATAL)
abort ();
g_log_depth--;
}
}
}
void
g_log (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *format,
...)
{
va_list args;
va_start (args, format);
g_logv (log_domain, log_level, format, args);
va_end (args);
}
void
g_log_default_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer unused_data)
{
gint fd;
gboolean in_recursion;
gboolean is_fatal;
in_recursion = (log_level & G_LOG_FLAG_RECURSION) != 0;
is_fatal = (log_level & G_LOG_FLAG_FATAL) != 0;
log_level &= G_LOG_LEVEL_MASK;
if (!message)
message = "g_log_default_handler(): (NULL) message";
fd = (log_level >= G_LOG_LEVEL_MESSAGE) ? 1 : 2;
switch (log_level)
{
case G_LOG_LEVEL_ERROR:
if (!log_domain && glib_error_func)
{
/* compatibility code */
glib_error_func (message);
return;
}
/* use write(2) for output, in case we are out of memeory */
if (log_domain)
{
write (fd, "\n", 1);
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
else
write (fd, "\n** ", 4);
if (in_recursion)
write (fd, "ERROR (recursed) **: ", 21);
else
write (fd, "ERROR **: ", 10);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
case G_LOG_LEVEL_CRITICAL:
if (log_domain)
{
write (fd, "\n", 1);
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
else
write (fd, "\n** ", 4);
if (in_recursion)
write (fd, "CRITICAL (recursed) **: ", 24);
else
write (fd, "CRITICAL **: ", 13);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
case G_LOG_LEVEL_WARNING:
if (!log_domain && glib_warning_func)
{
/* compatibility code */
glib_warning_func (message);
return;
}
if (log_domain)
{
write (fd, "\n", 1);
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
else
write (fd, "\n** ", 4);
if (in_recursion)
write (fd, "WARNING (recursed) **: ", 23);
else
write (fd, "WARNING **: ", 12);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
case G_LOG_LEVEL_MESSAGE:
if (!log_domain && glib_message_func)
{
/* compatibility code */
glib_message_func (message);
return;
}
if (log_domain)
{
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
if (in_recursion)
write (fd, "Message (recursed): ", 20);
else
write (fd, "Message: ", 9);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
case G_LOG_LEVEL_INFO:
if (log_domain)
{
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
if (in_recursion)
write (fd, "INFO (recursed): ", 17);
else
write (fd, "INFO: ", 6);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
case G_LOG_LEVEL_DEBUG:
if (log_domain)
{
write (fd, log_domain, strlen (log_domain));
write (fd, "-", 1);
}
if (in_recursion)
write (fd, "DEBUG (recursed): ", 18);
else
write (fd, "DEBUG: ", 7);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
default:
/* we are used for a log level that is not defined by GLib itself,
* try to make the best out of it.
*/
if (log_domain)
{
write (fd, log_domain, strlen (log_domain));
if (in_recursion)
write (fd, "-LOG (recursed:", 15);
else
write (fd, "-LOG (", 6);
}
else if (in_recursion)
write (fd, "LOG (recursed:", 14);
else
write (fd, "LOG (", 5);
if (log_level)
{
gchar string[] = "0x00): ";
gchar *p = string + 2;
guint i;
i = g_bit_nth_msf (log_level, -1);
*p = i >> 4;
p++;
*p = '0' + (i & 0xf);
if (*p > '9')
*p += 'A' - '9' - 1;
write (fd, string, 7);
}
else
write (fd, "): ", 3);
write (fd, message, strlen(message));
if (is_fatal)
write (fd, "\naborting...\n", 13);
else
write (fd, "\n", 1);
break;
}
}
GPrintFunc
g_set_print_handler (GPrintFunc func)
{
GPrintFunc old_print_func;
old_print_func = glib_print_func;
glib_print_func = func;
return old_print_func;
}
void
g_print (const gchar *format,
...)
{
va_list args;
gchar *string;
g_return_if_fail (format != NULL);
va_start (args, format);
string = g_strdup_vprintf (format, args);
va_end (args);
if (glib_print_func)
glib_print_func (string);
else
{
fputs (string, stdout);
fflush (stdout);
}
g_free (string);
}
GPrintFunc
g_set_printerr_handler (GPrintFunc func)
{
GPrintFunc old_printerr_func;
old_printerr_func = glib_printerr_func;
glib_printerr_func = func;
return old_printerr_func;
}
void
g_printerr (const gchar *format,
...)
{
va_list args;
gchar *string;
g_return_if_fail (format != NULL);
va_start (args, format);
string = g_strdup_vprintf (format, args);
va_end (args);
if (glib_printerr_func)
glib_printerr_func (string);
else
{
fputs (string, stderr);
fflush (stderr);
}
g_free (string);
}
/* compatibility code */
GErrorFunc
g_set_error_handler (GErrorFunc func)
{
GErrorFunc old_error_func;
old_error_func = glib_error_func;
glib_error_func = func;
return old_error_func;
}
/* compatibility code */
GWarningFunc
g_set_warning_handler (GWarningFunc func)
{
GWarningFunc old_warning_func;
old_warning_func = glib_warning_func;
glib_warning_func = func;
return old_warning_func;
}
/* compatibility code */
GPrintFunc
g_set_message_handler (GPrintFunc func)
{
GPrintFunc old_message_func;
old_message_func = glib_message_func;
glib_message_func = func;
return old_message_func;
}
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