/* 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. */ /* * Modified by the GLib Team and others 1997-1999. See the AUTHORS * file for a list of people on the GLib Team. See the ChangeLog * files for a list of changes. These files are distributed with * GLib at ftp://ftp.gtk.org/pub/gtk/. */ /* * MT safe */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include "glib.h" #ifdef HAVE_UNISTD_H #include #endif #include #include #include /* --- 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; }; /* --- prototypes --- */ static inline guint printf_string_upper_bound (const gchar *format, gboolean may_warn, va_list args); /* --- variables --- */ static GMutex* g_messages_lock = NULL; 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; static GPrivate* g_log_depth = NULL; /* --- functions --- */ #ifdef G_OS_WIN32 # define STRICT # include # include /* For _getpid() */ static gboolean alloc_console_called = FALSE; /* Just use stdio. If we're out of memory, we're hosed anyway. */ #undef write static inline int write (FILE *fd, const char *buf, int len) { fwrite (buf, len, 1, fd); fflush (fd); return len; } static void ensure_stdout_valid (void) { HANDLE handle; if (!alloc_console_called) { handle = GetStdHandle (STD_OUTPUT_HANDLE); if (handle == INVALID_HANDLE_VALUE) { AllocConsole (); alloc_console_called = TRUE; freopen ("CONOUT$", "w", stdout); } } } #else #define ensure_stdout_valid() /* Define as empty */ #endif static inline GLogDomain* g_log_find_domain (const gchar *log_domain) { register GLogDomain *domain; g_mutex_lock (g_messages_lock); domain = g_log_domains; while (domain) { if (strcmp (domain->log_domain, log_domain) == 0) { g_mutex_unlock (g_messages_lock); return domain; } domain = domain->next; } g_mutex_unlock (g_messages_lock); 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; g_mutex_lock (g_messages_lock); domain->next = g_log_domains; g_log_domains = domain; g_mutex_unlock (g_messages_lock); 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; g_mutex_lock (g_messages_lock); 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; } g_mutex_unlock (g_messages_lock); } } 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; g_mutex_lock (g_messages_lock); old_mask = g_log_always_fatal; g_log_always_fatal = fatal_mask; g_mutex_unlock (g_messages_lock); 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); g_mutex_lock (g_messages_lock); handler->id = ++handler_id; g_mutex_unlock (g_messages_lock); 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 (printf_string_upper_bound (format, FALSE, 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) { guint depth = GPOINTER_TO_UINT (g_private_get (g_log_depth)); GLogDomain *domain; GLogFunc log_func; gpointer data = NULL; domain = g_log_find_domain (log_domain ? log_domain : ""); if (depth) test_level |= G_LOG_FLAG_RECURSION; depth++; g_private_set (g_log_depth, GUINT_TO_POINTER (depth)); g_mutex_lock (g_messages_lock); if ((((domain ? domain->fatal_mask : G_LOG_FATAL_MASK) | g_log_always_fatal) & test_level) != 0) test_level |= G_LOG_FLAG_FATAL; g_mutex_unlock (g_messages_lock); 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) { #if defined (G_ENABLE_DEBUG) && defined (SIGTRAP) if (!(test_level & G_LOG_FLAG_RECURSION)) raise (SIGTRAP); else abort (); #else /* !G_ENABLE_DEBUG || !SIGTRAP */ abort (); #endif /* !G_ENABLE_DEBUG || !SIGTRAP */ } depth--; g_private_set (g_log_depth, GUINT_TO_POINTER (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) { #ifdef G_OS_WIN32 FILE *fd; #else gint fd; #endif gboolean in_recursion; gboolean is_fatal; GErrorFunc local_glib_error_func; GWarningFunc local_glib_warning_func; GPrintFunc local_glib_message_func; gchar prg_pid[64], *prg_name = g_get_prgname (); 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"; if (!prg_name) { prg_name = "(process"; sprintf (prg_pid, ":%u): ", getpid ()); } else sprintf (prg_pid, " (pid:%u): ", getpid ()); #ifdef G_OS_WIN32 /* Use just stdout as stderr is hard to get redirected from the * DOS prompt. */ fd = stdout; #else fd = (log_level >= G_LOG_LEVEL_MESSAGE) ? 1 : 2; #endif g_mutex_lock (g_messages_lock); local_glib_error_func = glib_error_func; local_glib_warning_func = glib_warning_func; local_glib_message_func = glib_message_func; g_mutex_unlock (g_messages_lock); switch (log_level) { case G_LOG_LEVEL_ERROR: if (!log_domain && local_glib_error_func) { /* compatibility code */ local_glib_error_func (message); return; } /* use write(2) for output, in case we are out of memeory */ ensure_stdout_valid (); write (fd, "\n", 1); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ if (log_domain) { write (fd, log_domain, strlen (log_domain)); write (fd, "-", 1); } else write (fd, "** ", 3); 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: ensure_stdout_valid (); write (fd, "\n", 1); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ if (log_domain) { write (fd, log_domain, strlen (log_domain)); write (fd, "-", 1); } else write (fd, "** ", 3); 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 && local_glib_warning_func) { /* compatibility code */ local_glib_warning_func (message); return; } ensure_stdout_valid (); write (fd, "\n", 1); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ if (log_domain) { write (fd, log_domain, strlen (log_domain)); write (fd, "-", 1); } else write (fd, "** ", 3); 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 && local_glib_message_func) { /* compatibility code */ local_glib_message_func (message); return; } ensure_stdout_valid (); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ 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: ensure_stdout_valid (); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ 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: ensure_stdout_valid (); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ 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. */ ensure_stdout_valid (); #ifdef G_ENABLE_MSG_PREFIX write (fd, prg_name, strlen (prg_name)); write (fd, prg_pid, strlen (prg_pid)); #endif /* G_ENABLE_MSG_PREFIX */ 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; g_mutex_lock (g_messages_lock); old_print_func = glib_print_func; glib_print_func = func; g_mutex_unlock (g_messages_lock); return old_print_func; } void g_print (const gchar *format, ...) { va_list args; gchar *string; GPrintFunc local_glib_print_func; g_return_if_fail (format != NULL); va_start (args, format); string = g_strdup_vprintf (format, args); va_end (args); g_mutex_lock (g_messages_lock); local_glib_print_func = glib_print_func; g_mutex_unlock (g_messages_lock); if (local_glib_print_func) local_glib_print_func (string); else { ensure_stdout_valid (); fputs (string, stdout); fflush (stdout); } g_free (string); } GPrintFunc g_set_printerr_handler (GPrintFunc func) { GPrintFunc old_printerr_func; g_mutex_lock (g_messages_lock); old_printerr_func = glib_printerr_func; glib_printerr_func = func; g_mutex_unlock (g_messages_lock); return old_printerr_func; } void g_printerr (const gchar *format, ...) { va_list args; gchar *string; GPrintFunc local_glib_printerr_func; g_return_if_fail (format != NULL); va_start (args, format); string = g_strdup_vprintf (format, args); va_end (args); g_mutex_lock (g_messages_lock); local_glib_printerr_func = glib_printerr_func; g_mutex_unlock (g_messages_lock); if (local_glib_printerr_func) local_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; g_mutex_lock (g_messages_lock); old_error_func = glib_error_func; glib_error_func = func; g_mutex_unlock (g_messages_lock); return old_error_func; } /* compatibility code */ GWarningFunc g_set_warning_handler (GWarningFunc func) { GWarningFunc old_warning_func; g_mutex_lock (g_messages_lock); old_warning_func = glib_warning_func; glib_warning_func = func; g_mutex_unlock (g_messages_lock); return old_warning_func; } /* compatibility code */ GPrintFunc g_set_message_handler (GPrintFunc func) { GPrintFunc old_message_func; g_mutex_lock (g_messages_lock); old_message_func = glib_message_func; glib_message_func = func; g_mutex_unlock (g_messages_lock); return old_message_func; } #ifndef MB_LEN_MAX # define MB_LEN_MAX 8 #endif typedef struct { guint min_width; guint precision; gboolean alternate_format, zero_padding, adjust_left, locale_grouping; gboolean add_space, add_sign, possible_sign, seen_precision; gboolean mod_half, mod_long, mod_extra_long; } PrintfArgSpec; static inline guint printf_string_upper_bound (const gchar *format, gboolean may_warn, va_list args) { static const gboolean honour_longs = SIZEOF_LONG > 4 || SIZEOF_VOID_P > 4; guint len = 1; if (!format) return len; while (*format) { register gchar c = *format++; if (c != '%') len += 1; else /* (c == '%') */ { PrintfArgSpec spec = { 0, }; gboolean seen_l = FALSE, conv_done = FALSE; guint conv_len = 0; const gchar *spec_start = format; do { c = *format++; switch (c) { GDoubleIEEE754 u_double; guint v_uint; gint v_int; gchar *v_string; /* beware of positional parameters */ case '$': if (may_warn) g_warning (G_GNUC_PRETTY_FUNCTION "(): unable to handle positional parameters (%%n$)"); len += 1024; /* try adding some safety padding */ break; /* parse flags */ case '#': spec.alternate_format = TRUE; break; case '0': spec.zero_padding = TRUE; break; case '-': spec.adjust_left = TRUE; break; case ' ': spec.add_space = TRUE; break; case '+': spec.add_sign = TRUE; break; case '\'': spec.locale_grouping = TRUE; break; /* parse output size specifications */ case '.': spec.seen_precision = TRUE; break; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': v_uint = c - '0'; c = *format; while (c >= '0' && c <= '9') { format++; v_uint = v_uint * 10 + c - '0'; c = *format; } if (spec.seen_precision) spec.precision = MAX (spec.precision, v_uint); else spec.min_width = MAX (spec.min_width, v_uint); break; case '*': v_int = va_arg (args, int); if (spec.seen_precision) { /* forget about negative precision */ if (v_int >= 0) spec.precision = MAX (spec.precision, v_int); } else { if (v_int < 0) { v_int = - v_int; spec.adjust_left = TRUE; } spec.min_width = MAX (spec.min_width, v_int); } break; /* parse type modifiers */ case 'h': spec.mod_half = TRUE; break; case 'l': if (!seen_l) { spec.mod_long = TRUE; seen_l = TRUE; break; } /* else, fall through */ case 'L': case 'q': spec.mod_long = TRUE; spec.mod_extra_long = TRUE; break; case 'z': case 'Z': #if GLIB_SIZEOF_SIZE_T > 4 spec.mod_long = TRUE; spec.mod_extra_long = TRUE; #endif /* GLIB_SIZEOF_SIZE_T > 4 */ break; case 't': #if GLIB_SIZEOF_PTRDIFF_T > 4 spec.mod_long = TRUE; spec.mod_extra_long = TRUE; #endif /* GLIB_SIZEOF_PTRDIFF_T > 4 */ break; case 'j': #if GLIB_SIZEOF_INTMAX_T > 4 spec.mod_long = TRUE; spec.mod_extra_long = TRUE; #endif /* GLIB_SIZEOF_INTMAX_T > 4 */ break; /* parse output conversions */ case '%': conv_len += 1; break; case 'O': case 'D': case 'I': case 'U': /* some C libraries feature long variants for these as well? */ spec.mod_long = TRUE; /* fall through */ case 'o': conv_len += 2; /* fall through */ case 'd': case 'i': conv_len += 1; /* sign */ /* fall through */ case 'u': conv_len += 4; /* fall through */ case 'x': case 'X': spec.possible_sign = TRUE; conv_len += 10; if (spec.mod_long && honour_longs) conv_len *= 2; if (spec.mod_extra_long) conv_len *= 2; if (spec.mod_extra_long) { #ifdef G_HAVE_GINT64 (void) va_arg (args, gint64); #else /* !G_HAVE_GINT64 */ (void) va_arg (args, long); #endif /* !G_HAVE_GINT64 */ } else if (spec.mod_long) (void) va_arg (args, long); else (void) va_arg (args, int); break; case 'A': case 'a': /* 0x */ conv_len += 2; /* fall through */ case 'g': case 'G': case 'e': case 'E': case 'f': spec.possible_sign = TRUE; /* n . dddddddddddddddddddddddd E +- eeee */ conv_len += 1 + 1 + MAX (24, spec.precision) + 1 + 1 + 4; if (may_warn && spec.mod_extra_long) g_warning (G_GNUC_PRETTY_FUNCTION "(): unable to handle long double, collecting double only"); #ifdef HAVE_LONG_DOUBLE #error need to implement special handling for long double #endif u_double.v_double = va_arg (args, double); /* %f can expand up to all significant digits before '.' (308) */ if (c == 'f' && u_double.mpn.biased_exponent > 0 && u_double.mpn.biased_exponent < 2047) { gint exp = u_double.mpn.biased_exponent; exp -= G_IEEE754_DOUBLE_BIAS; exp = exp * G_LOG_2_BASE_10 + 1; conv_len += exp; } /* some printf() implementations require extra padding for rounding */ conv_len += 2; /* we can't really handle locale specific grouping here */ if (spec.locale_grouping) conv_len *= 2; break; case 'C': spec.mod_long = TRUE; /* fall through */ case 'c': conv_len += spec.mod_long ? MB_LEN_MAX : 1; (void) va_arg (args, int); break; case 'S': spec.mod_long = TRUE; /* fall through */ case 's': v_string = va_arg (args, char*); if (!v_string) conv_len += 8; /* hold "(null)" */ else if (spec.seen_precision) conv_len += spec.precision; else conv_len += strlen (v_string); conv_done = TRUE; if (spec.mod_long) { if (may_warn) g_warning (G_GNUC_PRETTY_FUNCTION "(): unable to handle wide char strings"); len += 1024; /* try adding some safety padding */ } break; case 'P': /* do we actually need this? */ /* fall through */ case 'p': spec.alternate_format = TRUE; conv_len += 10; if (honour_longs) conv_len *= 2; /* fall through */ case 'n': conv_done = TRUE; (void) va_arg (args, void*); break; case 'm': /* there's not much we can do to be clever */ v_string = g_strerror (errno); v_uint = v_string ? strlen (v_string) : 0; conv_len += MAX (256, v_uint); break; /* handle invalid cases */ case '\000': /* no conversion specification, bad bad */ conv_len += format - spec_start; break; default: if (may_warn) g_warning (G_GNUC_PRETTY_FUNCTION "(): unable to handle `%c' while parsing format", c); break; } conv_done |= conv_len > 0; } while (!conv_done); /* handle width specifications */ conv_len = MAX (conv_len, MAX (spec.precision, spec.min_width)); /* handle flags */ conv_len += spec.alternate_format ? 2 : 0; conv_len += (spec.add_space || spec.add_sign || spec.possible_sign); /* finally done */ len += conv_len; } /* else (c == '%') */ } /* while (*format) */ return len; } guint g_printf_string_upper_bound (const gchar *format, va_list args) { return printf_string_upper_bound (format, TRUE, args); } void g_messages_init (void) { g_messages_lock = g_mutex_new(); g_log_depth = g_private_new(NULL); }