1 /* Copyright (C) 2009, Martin Johansson <martin@fatbob.nu>
2 Copyright (C) 2005-2009, Thorvald Natvig <thorvald@natvig.com>
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
10 - Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 - Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
15 - Neither the name of the Developers nor the names of its contributors may
16 be used to endorse or promote products derived from this software without
17 specific prior written permission.
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 static int nextchanId;
39 static channel_t *rootChan;
40 channel_t *defaultChan;
41 declare_list(channels); /* A flat list of the channels */
43 static channel_t *createChannel(int id, const char *name, const char *desc)
47 ch = malloc(sizeof(channel_t));
49 Log_fatal("out of memory");
50 memset(ch, 0, sizeof(channel_t));
52 strncpy(ch->name, name, MAX_TEXT);
53 strncpy(ch->desc, desc, MAX_TEXT);
54 init_list_entry(&ch->subs);
55 init_list_entry(&ch->node);
56 init_list_entry(&ch->clients);
57 init_list_entry(&ch->flatlist_node);
58 init_list_entry(&ch->channel_links);
63 /* Might be used when tree travesal becomes neccessary */
64 static channel_t *first_subchannel(channel_t *ch)
66 if (list_empty(&ch->subs))
69 return list_get_entry(list_get_first(&ch->subs), channel_t, node);
72 static channel_t *next_channel(channel_t *ch)
74 if (list_get_next(&ch->node) == &list_get_entry(&ch->node, channel_t, node)->parent->subs)
77 return list_get_entry(list_get_next(&ch->node), channel_t, node);
81 void Chan_iterate(channel_t **channelpptr)
83 channel_t *ch = *channelpptr;
85 if (!list_empty(&channels)) {
87 ch = list_get_entry(list_get_first(&channels), channel_t, flatlist_node);
89 if (list_get_next(&ch->flatlist_node) == &channels)
92 ch = list_get_entry(list_get_next(&ch->flatlist_node), channel_t, flatlist_node);
102 conf_channel_t chdesc;
103 conf_channel_link_t chlink;
104 const char *defaultChannelName;
106 defaultChannelName = getStrConf(DEAFULT_CHANNEL);
109 if (Conf_getNextChannel(&chdesc, i) < 0) {
111 Log_fatal("No valid channels found in configuration file. Exiting.");
115 rootChan = createChannel(0, chdesc.name, chdesc.description);
116 list_add_tail(&rootChan->flatlist_node, &channels);
117 if (strcmp(defaultChannelName, chdesc.name) == 0)
118 defaultChan = rootChan;
121 channel_t *ch, *ch_itr = NULL;
122 ch = Chan_createChannel(chdesc.name, chdesc.description);
124 if (strcmp(defaultChannelName, chdesc.name) == 0) {
125 Log_info("Setting default channel %s", ch->name);
130 Chan_iterate(&ch_itr);
131 } while (ch_itr != NULL && strcmp(ch_itr->name, chdesc.parent) != 0);
134 Log_fatal("Error in channel configuration: parent not found");
136 Chan_addChannel(ch_itr, ch);
137 Log_info("Adding channel '%s' parent '%s'", ch->name, chdesc.parent);
141 if (defaultChan == NULL)
142 defaultChan = rootChan;
146 channel_t *ch_src, *ch_dst, *ch_itr = NULL;
147 if (Conf_getNextChannelLink(&chlink, i) < 0) {
149 Log_info("No channel links found in configuration file.");
154 Chan_iterate(&ch_itr);
155 } while (ch_itr != NULL && strcmp(ch_itr->name, chlink.source) != 0);
157 Log_fatal("Error in channel link configuration: source channel '%s' not found.", chlink.source);
163 Chan_iterate(&ch_itr);
164 } while (ch_itr != NULL && strcmp(ch_itr->name, chlink.destination) != 0);
166 Log_fatal("Error in channel link configuration: destination channel '%s' not found", chlink.destination);
170 list_add_tail(&ch_dst->link_node, &ch_src->channel_links);
171 Log_debug("Adding channel link %s -> %s", ch_src->name, ch_dst->name);
177 struct dlist *itr, *save;
179 list_iterate_safe(itr, save, &channels) {
180 Log_debug("Free channel %s", list_get_entry(itr, channel_t, flatlist_node)->name);
181 free(list_get_entry(itr, channel_t, flatlist_node));
185 channel_t *Chan_createChannel(const char *name, const char *desc)
189 return createChannel(nextchanId, name, desc);
192 void Chan_freeChannel(channel_t *ch)
195 list_del(&ch->flatlist_node);
199 void Chan_addChannel(channel_t *parent, channel_t *ch)
201 list_add_tail(&ch->node, &parent->subs);
203 list_add_tail(&ch->flatlist_node, &channels);
207 void Chan_playerJoin(channel_t *ch, client_t *client)
209 /* Only allowed in one channel at a time */
210 Log_debug("Add player %s to channel %s", client->playerName, ch->name);
213 list_del(&client->chan_node);
214 list_add_tail(&client->chan_node, &ch->clients);
215 client->channel = (void *)ch;
219 void Chan_playerJoin_id(int channelid, client_t *client)
221 channel_t *ch_itr = NULL;
223 Chan_iterate(&ch_itr);
224 } while (ch_itr != NULL && ch_itr->id != channelid);
226 Log_warn("Channel id %d not found - ignoring.", channelid);
228 Chan_playerJoin(ch_itr, client);
232 void Chan_addChannel_id(int parentId, channel_t *ch)
234 channel_t *ch_itr = NULL;
236 Chan_iterate(&ch_itr);
237 } while (ch_itr != NULL && ch_itr->id != parentId);
239 Log_warn("Chan_addChannel_id: Channel id %d not found - ignoring.", parentId);
241 list_add_tail(&ch->node, &ch_itr->subs);
244 channel_t *Chan_fromId(int channelid)
246 channel_t *ch_itr = NULL;
248 Chan_iterate(&ch_itr);
249 } while (ch_itr != NULL && ch_itr->id != channelid);
251 Log_warn("Chan_fromId: Channel id %d not found.", channelid);
255 void Chan_removeChannel(channel_t *ch)