* @file stringref.c Reference-counted immutable strings * Gaim is the legal property of its developers, whose names are too numerous * to list here. Please refer to the COPYRIGHT file distributed with this * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * This program 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 General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #define REFCOUNT(x) ((x) & 0x7fffffff) static GList *gclist = NULL; static void stringref_free(GaimStringref *stringref); static gboolean gs_idle_cb(gpointer data); GaimStringref *gaim_stringref_new(const char *value) newref = g_malloc(sizeof(GaimStringref) + strlen(value)); strcpy(newref->value, value); GaimStringref *gaim_stringref_new_noref(const char *value) newref = g_malloc(sizeof(GaimStringref) + strlen(value)); strcpy(newref->value, value); newref->ref = 0x80000000; g_idle_add(gs_idle_cb, NULL); gclist = g_list_prepend(gclist, newref); GaimStringref *gaim_stringref_printf(const char *format, ...) newref = g_malloc(sizeof(GaimStringref) + g_printf_string_upper_bound(format, ap)); vsprintf(newref->value, format, ap); GaimStringref *gaim_stringref_ref(GaimStringref *stringref) void gaim_stringref_unref(GaimStringref *stringref) if (REFCOUNT(--(stringref->ref)) == 0) { if (stringref->ref & 0x80000000) gclist = g_list_remove(gclist, stringref); stringref_free(stringref); const char *gaim_stringref_value(const GaimStringref *stringref) return (stringref == NULL ? NULL : stringref->value); int gaim_stringref_cmp(const GaimStringref *s1, const GaimStringref *s2) return (s1 == s2 ? 0 : strcmp(gaim_stringref_value(s1), gaim_stringref_value(s2))); size_t gaim_stringref_len(const GaimStringref *stringref) return strlen(gaim_stringref_value(stringref)); static void stringref_free(GaimStringref *stringref) if (REFCOUNT(stringref->ref) != 0) { gaim_debug(GAIM_DEBUG_ERROR, "stringref", "Free of nonzero (%d) ref stringref!\n", REFCOUNT(stringref->ref)); static gboolean gs_idle_cb(gpointer data) if (REFCOUNT(ref->ref) == 0) {