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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Evolution Conduits - Pilot Map routines
*
* Copyright (C) 2000 Helix Code, Inc.
*
* Authors: JP Rosevear <jpr@helixcode.com>
*
* 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.
*/
#include <stdlib.h>
#include <time.h>
#include <glib.h>
#include <gnome-xml/parser.h>
#include <e-pilot-map.h>
struct map_sax_closure
{
GHashTable *pid_map;
GHashTable *uid_map;
time_t *since;
};
static void
map_set_node_timet (xmlNodePtr node, const char *name, time_t t)
{
char *tstring;
tstring = g_strdup_printf ("%ld", t);
xmlSetProp (node, name, tstring);
}
static void
map_sax_start_element (void *data, const xmlChar *name,
const xmlChar **attrs)
{
struct map_sax_closure *closure = (struct map_sax_closure *)data;
if (!strcmp (name, "PilotMap")) {
while (attrs && *attrs != NULL) {
const xmlChar **val = attrs;
val++;
if (!strcmp (*attrs, "timestamp"))
*closure->since = (time_t)strtoul (*val, NULL, 0);
attrs = ++val;
}
}
if (!strcmp (name, "map")) {
char *uid = NULL;
guint32 *pid = g_new (guint32, 1);
*pid = 0;
while (attrs && *attrs != NULL) {
const xmlChar **val = attrs;
val++;
if (!strcmp (*attrs, "uid"))
uid = g_strdup (*val);
if (!strcmp (*attrs, "pilot_id"))
*pid = strtoul (*val, NULL, 0);
attrs = ++val;
}
if (uid && *pid != 0) {
g_hash_table_insert (closure->pid_map, pid, uid);
g_hash_table_insert (closure->uid_map, uid, pid);
} else {
g_free (pid);
}
}
}
static void
map_write_foreach (gpointer key, gpointer value, gpointer data)
{
xmlNodePtr root = data;
xmlNodePtr mnode;
unsigned long *pid = key;
const char *uid = value;
char *pidstr;
mnode = xmlNewChild (root, NULL, "map", NULL);
xmlSetProp (mnode, "uid", uid);
pidstr = g_strdup_printf ("%lu", *pid);
xmlSetProp (mnode, "pilot_id", pidstr);
g_free (pidstr);
}
int
e_pilot_map_write (const char *filename, GHashTable *pid_map)
{
xmlDocPtr doc;
int ret;
g_return_val_if_fail (pid_map != NULL, -1);
doc = xmlNewDoc ("1.0");
if (doc == NULL) {
g_warning ("Pilot map file could not be created\n");
return -1;
}
doc->root = xmlNewDocNode(doc, NULL, "PilotMap", NULL);
map_set_node_timet (doc->root, "timestamp", time (NULL));
g_hash_table_foreach (pid_map, map_write_foreach, doc->root);
/* Write the file */
xmlSetDocCompressMode (doc, 0);
ret = xmlSaveFile (filename, doc);
if (ret < 0) {
g_warning ("Pilot map file '%s' could not be saved\n", filename);
return -1;
}
xmlFreeDoc (doc);
return 0;
}
int
e_pilot_map_read (const char *filename, GHashTable *pid_map,
GHashTable *uid_map, time_t *since)
{
xmlSAXHandler handler;
struct map_sax_closure closure;
memset (&handler, 0, sizeof (xmlSAXHandler));
handler.startElement = map_sax_start_element;
closure.pid_map = pid_map;
closure.uid_map = uid_map;
if (xmlSAXUserParseFile (&handler, &closure, filename) < 0)
return -1;
return 0;
}
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