| /* 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 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., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| /* |
| * Modified by the GLib Team and others 1997-2000. 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/. |
| */ |
| |
| #include "config.h" |
| |
| #include "glib.h" |
| #include "galias.h" |
| |
| |
| /** |
| * g_error_new_valist: |
| * @domain: error domain |
| * @code: error code |
| * @format: printf()-style format for error message |
| * @args: #va_list of parameters for the message format |
| * |
| * Creates a new #GError with the given @domain and @code, |
| * and a message formatted with @format. |
| * |
| * Returns: a new #GError |
| * |
| * Since: 2.22 |
| */ |
| GError* |
| g_error_new_valist (GQuark domain, |
| gint code, |
| const gchar *format, |
| va_list args) |
| { |
| GError *error; |
| |
| error = g_slice_new (GError); |
| |
| error->domain = domain; |
| error->code = code; |
| error->message = g_strdup_vprintf (format, args); |
| |
| return error; |
| } |
| |
| /** |
| * g_error_new: |
| * @domain: error domain |
| * @code: error code |
| * @format: printf()-style format for error message |
| * @Varargs: parameters for message format |
| * |
| * Creates a new #GError with the given @domain and @code, |
| * and a message formatted with @format. |
| * |
| * Return value: a new #GError |
| */ |
| GError* |
| g_error_new (GQuark domain, |
| gint code, |
| const gchar *format, |
| ...) |
| { |
| GError* error; |
| va_list args; |
| |
| g_return_val_if_fail (format != NULL, NULL); |
| g_return_val_if_fail (domain != 0, NULL); |
| |
| va_start (args, format); |
| error = g_error_new_valist (domain, code, format, args); |
| va_end (args); |
| |
| return error; |
| } |
| |
| /** |
| * g_error_new_literal: |
| * @domain: error domain |
| * @code: error code |
| * @message: error message |
| * |
| * Creates a new #GError; unlike g_error_new(), @message is |
| * not a printf()-style format string. Use this function if |
| * @message contains text you don't have control over, |
| * that could include printf() escape sequences. |
| * |
| * Return value: a new #GError |
| **/ |
| GError* |
| g_error_new_literal (GQuark domain, |
| gint code, |
| const gchar *message) |
| { |
| GError* err; |
| |
| g_return_val_if_fail (message != NULL, NULL); |
| g_return_val_if_fail (domain != 0, NULL); |
| |
| err = g_slice_new (GError); |
| |
| err->domain = domain; |
| err->code = code; |
| err->message = g_strdup (message); |
| |
| return err; |
| } |
| |
| /** |
| * g_error_free: |
| * @error: a #GError |
| * |
| * Frees a #GError and associated resources. |
| */ |
| void |
| g_error_free (GError *error) |
| { |
| g_return_if_fail (error != NULL); |
| |
| g_free (error->message); |
| |
| g_slice_free (GError, error); |
| } |
| |
| /** |
| * g_error_copy: |
| * @error: a #GError |
| * |
| * Makes a copy of @error. |
| * |
| * Return value: a new #GError |
| */ |
| GError* |
| g_error_copy (const GError *error) |
| { |
| GError *copy; |
| |
| g_return_val_if_fail (error != NULL, NULL); |
| |
| copy = g_slice_new (GError); |
| |
| *copy = *error; |
| |
| copy->message = g_strdup (error->message); |
| |
| return copy; |
| } |
| |
| /** |
| * g_error_matches: |
| * @error: a #GError or %NULL |
| * @domain: an error domain |
| * @code: an error code |
| * |
| * Returns %TRUE if @error matches @domain and @code, %FALSE |
| * otherwise. In particular, when @error is %NULL, %FALSE will |
| * be returned. |
| * |
| * Return value: whether @error has @domain and @code |
| */ |
| gboolean |
| g_error_matches (const GError *error, |
| GQuark domain, |
| gint code) |
| { |
| return error && |
| error->domain == domain && |
| error->code == code; |
| } |
| |
| #define ERROR_OVERWRITTEN_WARNING "GError set over the top of a previous GError or uninitialized memory.\n" \ |
| "This indicates a bug in someone's code. You must ensure an error is NULL before it's set.\n" \ |
| "The overwriting error message was: %s" |
| |
| /** |
| * g_set_error: |
| * @err: a return location for a #GError, or %NULL |
| * @domain: error domain |
| * @code: error code |
| * @format: printf()-style format |
| * @Varargs: args for @format |
| * |
| * Does nothing if @err is %NULL; if @err is non-%NULL, then *@err |
| * must be %NULL. A new #GError is created and assigned to *@err. |
| */ |
| void |
| g_set_error (GError **err, |
| GQuark domain, |
| gint code, |
| const gchar *format, |
| ...) |
| { |
| GError *new; |
| |
| va_list args; |
| |
| if (err == NULL) |
| return; |
| |
| va_start (args, format); |
| new = g_error_new_valist (domain, code, format, args); |
| va_end (args); |
| |
| if (*err == NULL) |
| *err = new; |
| else |
| g_warning (ERROR_OVERWRITTEN_WARNING, new->message); |
| } |
| |
| /** |
| * g_set_error_literal: |
| * @err: a return location for a #GError, or %NULL |
| * @domain: error domain |
| * @code: error code |
| * @message: error message |
| * |
| * Does nothing if @err is %NULL; if @err is non-%NULL, then *@err |
| * must be %NULL. A new #GError is created and assigned to *@err. |
| * Unlike g_set_error(), @message is not a printf()-style format string. |
| * Use this function if @message contains text you don't have control over, |
| * that could include printf() escape sequences. |
| * |
| * Since: 2.18 |
| */ |
| void |
| g_set_error_literal (GError **err, |
| GQuark domain, |
| gint code, |
| const gchar *message) |
| { |
| GError *new; |
| |
| if (err == NULL) |
| return; |
| |
| new = g_error_new_literal (domain, code, message); |
| if (*err == NULL) |
| *err = new; |
| else |
| g_warning (ERROR_OVERWRITTEN_WARNING, new->message); |
| } |
| |
| /** |
| * g_propagate_error: |
| * @dest: error return location |
| * @src: error to move into the return location |
| * |
| * If @dest is %NULL, free @src; otherwise, moves @src into *@dest. |
| * The error variable @dest points to must be %NULL. |
| */ |
| void |
| g_propagate_error (GError **dest, |
| GError *src) |
| { |
| g_return_if_fail (src != NULL); |
| |
| if (dest == NULL) |
| { |
| if (src) |
| g_error_free (src); |
| return; |
| } |
| else |
| { |
| if (*dest != NULL) |
| g_warning (ERROR_OVERWRITTEN_WARNING, src->message); |
| else |
| *dest = src; |
| } |
| } |
| |
| /** |
| * g_clear_error: |
| * @err: a #GError return location |
| * |
| * If @err is %NULL, does nothing. If @err is non-%NULL, |
| * calls g_error_free() on *@err and sets *@err to %NULL. |
| */ |
| void |
| g_clear_error (GError **err) |
| { |
| if (err && *err) |
| { |
| g_error_free (*err); |
| *err = NULL; |
| } |
| } |
| |
| static void |
| g_error_add_prefix (gchar **string, |
| const gchar *format, |
| va_list ap) |
| { |
| gchar *oldstring; |
| gchar *prefix; |
| |
| prefix = g_strdup_vprintf (format, ap); |
| oldstring = *string; |
| *string = g_strconcat (prefix, oldstring, NULL); |
| g_free (oldstring); |
| g_free (prefix); |
| } |
| |
| /** |
| * g_prefix_error: |
| * @err: a return location for a #GError, or %NULL |
| * @format: printf()-style format string |
| * @...: arguments to @format |
| * |
| * Formats a string according to @format and |
| * prefix it to an existing error message. If |
| * @err is %NULL (ie: no error variable) then do |
| * nothing. |
| * |
| * If *@err is %NULL (ie: an error variable is |
| * present but there is no error condition) then |
| * also do nothing. Whether or not it makes |
| * sense to take advantage of this feature is up |
| * to you. |
| * |
| * Since: 2.16 |
| */ |
| void |
| g_prefix_error (GError **err, |
| const gchar *format, |
| ...) |
| { |
| if (err && *err) |
| { |
| va_list ap; |
| |
| va_start (ap, format); |
| g_error_add_prefix (&(*err)->message, format, ap); |
| va_end (ap); |
| } |
| } |
| |
| /** |
| * g_propagate_prefixed_error: |
| * @dest: error return location |
| * @src: error to move into the return location |
| * @format: printf()-style format string |
| * @...: arguments to @format |
| * |
| * If @dest is %NULL, free @src; otherwise, |
| * moves @src into *@dest. *@dest must be %NULL. |
| * After the move, add a prefix as with |
| * g_prefix_error(). |
| * |
| * Since: 2.16 |
| **/ |
| void |
| g_propagate_prefixed_error (GError **dest, |
| GError *src, |
| const gchar *format, |
| ...) |
| { |
| g_propagate_error (dest, src); |
| |
| if (dest && *dest) |
| { |
| va_list ap; |
| |
| va_start (ap, format); |
| g_error_add_prefix (&(*dest)->message, format, ap); |
| va_end (ap); |
| } |
| } |
| |
| #define __G_ERROR_C__ |
| #include "galiasdef.c" |