2 * This file is part of DisOrder.
3 * Copyright (C) 2004-2008 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
21 #include "disorder-server.h"
25 /* generic plugin support *****************************************************/
28 # define SOSUFFIX ".so"
37 static struct plugin *plugins;
39 const struct plugin *open_plugin(const char *name,
46 for(pl = plugins; pl && strcmp(pl->name, name); pl = pl->next)
49 /* Search the plugin path */
50 for(n = 0; n <= config->plugins.n; ++n) {
51 byte_xasprintf(&p, "%s/%s" SOSUFFIX,
52 n == config->plugins.n ? pkglibdir : config->plugins.s[n],
54 if(access(p, R_OK) == 0) {
55 h = dlopen(p, RTLD_NOW);
57 error(0, "error opening %s: %s", p, dlerror());
60 pl = xmalloc(sizeof *pl);
62 pl->name = xstrdup(name);
68 (flags & PLUGIN_FATAL ? fatal : error)(0, "cannot find plugin '%s'", name);
72 function_t *get_plugin_function(const struct plugin *pl,
76 f = (function_t *)dlsym(pl->dlhandle, symbol);
78 fatal(0, "error looking up function '%s' in '%s': %s",
79 symbol, pl->name, dlerror());
83 const void *get_plugin_object(const struct plugin *pl,
87 o = dlsym(pl->dlhandle, symbol);
89 fatal(0, "error looking up object '%s' in '%s': %s",
90 symbol, pl->name, dlerror());
94 /* specific plugin interfaces *************************************************/
96 typedef long tracklength_fn(const char *track, const char *path);
98 /** Compute the length of a track
99 * @param plugin plugin to use, as configured
100 * @param track UTF-8 name of track
101 * @param path file system path or 0
102 * @return length of track in seconds, 0 for unknown, -1 for error
104 long tracklength(const char *plugin, const char *track, const char *path) {
105 tracklength_fn *f = 0;
107 f = (tracklength_fn *)get_plugin_function(open_plugin(plugin,
109 "disorder_tracklength");
110 return (*f)(track, path);
113 typedef void scan_fn(const char *root);
115 void scan(const char *module, const char *root) {
116 ((scan_fn *)get_plugin_function(open_plugin(module, PLUGIN_FATAL),
117 "disorder_scan"))(root);
120 typedef int check_fn(const char *root, const char *path);
123 int check(const char *module, const char *root, const char *path) {
124 return ((check_fn *)get_plugin_function(open_plugin(module, PLUGIN_FATAL),
125 "disorder_check"))(root, path);
128 typedef void notify_play_fn(const char *track, const char *submitter);
130 void notify_play(const char *track,
131 const char *submitter) {
132 static notify_play_fn *f;
135 f = (notify_play_fn *)get_plugin_function(open_plugin("notify",
137 "disorder_notify_play");
138 (*f)(track, submitter);
141 typedef void notify_scratch_fn(const char *track,
142 const char *submitter,
143 const char *scratcher,
146 void notify_scratch(const char *track,
147 const char *submitter,
148 const char *scratcher,
150 static notify_scratch_fn *f;
153 f = (notify_scratch_fn *)get_plugin_function(open_plugin("notify",
155 "disorder_notify_scratch");
156 (*f)(track, submitter, scratcher, seconds);
159 typedef void notify_not_scratched_fn(const char *track,
160 const char *submitter);
162 void notify_not_scratched(const char *track,
163 const char *submitter) {
164 static notify_not_scratched_fn *f;
167 f = (notify_not_scratched_fn *)get_plugin_function
168 (open_plugin("notify",
170 "disorder_notify_not_scratched");
171 (*f)(track, submitter);
174 typedef void notify_queue_fn(const char *track,
175 const char *submitter);
177 void notify_queue(const char *track,
178 const char *submitter) {
179 static notify_queue_fn *f;
182 f = (notify_queue_fn *)get_plugin_function(open_plugin("notify",
184 "disorder_notify_queue");
185 (*f)(track, submitter);
188 void notify_queue_remove(const char *track,
189 const char *remover) {
190 static notify_queue_fn *f;
193 f = (notify_queue_fn *)get_plugin_function(open_plugin("notify",
195 "disorder_notify_queue_remove");
196 (*f)(track, remover);
199 void notify_queue_move(const char *track,
201 static notify_queue_fn *f;
204 f = (notify_queue_fn *)get_plugin_function(open_plugin("notify",
206 "disorder_notify_queue_move");
210 void notify_pause(const char *track, const char *who) {
211 static notify_queue_fn *f;
214 f = (notify_queue_fn *)get_plugin_function(open_plugin("notify",
216 "disorder_notify_pause");
220 void notify_resume(const char *track, const char *who) {
221 static notify_queue_fn *f;
224 f = (notify_queue_fn *)get_plugin_function(open_plugin("notify",
226 "disorder_notify_resume");
230 /* player plugin interfaces ***************************************************/
234 unsigned long play_get_type(const struct plugin *pl) {
235 return *(const unsigned long *)get_plugin_object(pl, "disorder_player_type");
240 typedef void *prefork_fn(const char *track);
242 void *play_prefork(const struct plugin *pl,
244 return ((prefork_fn *)get_plugin_function(pl,
245 "disorder_play_prefork"))(track);
250 typedef void play_track_fn(const char *const *parameters,
255 void play_track(const struct plugin *pl,
256 const char *const *parameters,
260 ((play_track_fn *)get_plugin_function(pl,
261 "disorder_play_track"))(parameters,
269 typedef void cleanup_fn(void *data);
271 void play_cleanup(const struct plugin *pl, void *data) {
272 ((cleanup_fn *)get_plugin_function(pl, "disorder_play_cleanup"))(data);
277 typedef int pause_fn(long *playedp, void *data);
279 int play_pause(const struct plugin *pl, long *playedp, void *data) {
280 return (((pause_fn *)get_plugin_function(pl, "disorder_pause_track"))
286 typedef void resume_fn(void *data);
288 void play_resume(const struct plugin *pl, void *data) {
289 (((resume_fn *)get_plugin_function(pl, "disorder_resume_track"))