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Diffstat (limited to 'protocols/Sametime/src/glib/gerror.c')
-rw-r--r-- | protocols/Sametime/src/glib/gerror.c | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/protocols/Sametime/src/glib/gerror.c b/protocols/Sametime/src/glib/gerror.c new file mode 100644 index 0000000000..1f39739100 --- /dev/null +++ b/protocols/Sametime/src/glib/gerror.c @@ -0,0 +1,387 @@ +/* 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 "gerror.h" + +#include "gstrfuncs.h" +#include "gtestutils.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); + } +} |