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 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU 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, see <http://www.gnu.org/licenses/>.
19 #include "disorder-server.h"
23 /* generic plugin support *****************************************************/
26 # define SOSUFFIX ".so"
35 static struct plugin
*plugins
;
37 const struct plugin
*open_plugin(const char *name
,
44 for(pl
= plugins
; pl
&& strcmp(pl
->name
, name
); pl
= pl
->next
)
47 /* Search the plugin path */
48 for(n
= 0; n
<= config
->plugins
.n
; ++n
) {
49 byte_xasprintf(&p
, "%s/%s" SOSUFFIX
,
50 n
== config
->plugins
.n ? pkglibdir
: config
->plugins
.s
[n
],
52 if(access(p
, R_OK
) == 0) {
53 h
= dlopen(p
, RTLD_NOW
);
55 error(0, "error opening %s: %s", p
, dlerror());
58 pl
= xmalloc(sizeof *pl
);
60 pl
->name
= xstrdup(name
);
66 (flags
& PLUGIN_FATAL ? fatal
: error
)(0, "cannot find plugin '%s'", name
);
70 function_t
*get_plugin_function(const struct plugin
*pl
,
74 f
= (function_t
*)dlsym(pl
->dlhandle
, symbol
);
76 fatal(0, "error looking up function '%s' in '%s': %s",
77 symbol
, pl
->name
, dlerror());
81 const void *get_plugin_object(const struct plugin
*pl
,
85 o
= dlsym(pl
->dlhandle
, symbol
);
87 fatal(0, "error looking up object '%s' in '%s': %s",
88 symbol
, pl
->name
, dlerror());
92 /* specific plugin interfaces *************************************************/
94 typedef long tracklength_fn(const char *track
, const char *path
);
96 /** Compute the length of a track
97 * @param plugin plugin to use, as configured
98 * @param track UTF-8 name of track
99 * @param path file system path or 0
100 * @return length of track in seconds, 0 for unknown, -1 for error
102 long tracklength(const char *plugin
, const char *track
, const char *path
) {
103 tracklength_fn
*f
= 0;
105 f
= (tracklength_fn
*)get_plugin_function(open_plugin(plugin
,
107 "disorder_tracklength");
108 return (*f
)(track
, path
);
111 typedef void scan_fn(const char *root
);
113 void scan(const char *module
, const char *root
) {
114 ((scan_fn
*)get_plugin_function(open_plugin(module
, PLUGIN_FATAL
),
115 "disorder_scan"))(root
);
118 typedef int check_fn(const char *root
, const char *path
);
121 int check(const char *module
, const char *root
, const char *path
) {
122 return ((check_fn
*)get_plugin_function(open_plugin(module
, PLUGIN_FATAL
),
123 "disorder_check"))(root
, path
);
126 typedef void notify_play_fn(const char *track
, const char *submitter
);
128 void notify_play(const char *track
,
129 const char *submitter
) {
130 static notify_play_fn
*f
;
133 f
= (notify_play_fn
*)get_plugin_function(open_plugin("notify",
135 "disorder_notify_play");
136 (*f
)(track
, submitter
);
139 typedef void notify_scratch_fn(const char *track
,
140 const char *submitter
,
141 const char *scratcher
,
144 void notify_scratch(const char *track
,
145 const char *submitter
,
146 const char *scratcher
,
148 static notify_scratch_fn
*f
;
151 f
= (notify_scratch_fn
*)get_plugin_function(open_plugin("notify",
153 "disorder_notify_scratch");
154 (*f
)(track
, submitter
, scratcher
, seconds
);
157 typedef void notify_not_scratched_fn(const char *track
,
158 const char *submitter
);
160 void notify_not_scratched(const char *track
,
161 const char *submitter
) {
162 static notify_not_scratched_fn
*f
;
165 f
= (notify_not_scratched_fn
*)get_plugin_function
166 (open_plugin("notify",
168 "disorder_notify_not_scratched");
169 (*f
)(track
, submitter
);
172 typedef void notify_queue_fn(const char *track
,
173 const char *submitter
);
175 void notify_queue(const char *track
,
176 const char *submitter
) {
177 static notify_queue_fn
*f
;
180 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
182 "disorder_notify_queue");
183 (*f
)(track
, submitter
);
186 void notify_queue_remove(const char *track
,
187 const char *remover
) {
188 static notify_queue_fn
*f
;
191 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
193 "disorder_notify_queue_remove");
194 (*f
)(track
, remover
);
197 void notify_queue_move(const char *track
,
199 static notify_queue_fn
*f
;
202 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
204 "disorder_notify_queue_move");
208 void notify_pause(const char *track
, const char *who
) {
209 static notify_queue_fn
*f
;
212 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
214 "disorder_notify_pause");
218 void notify_resume(const char *track
, const char *who
) {
219 static notify_queue_fn
*f
;
222 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
224 "disorder_notify_resume");
228 /* player plugin interfaces ***************************************************/
232 unsigned long play_get_type(const struct plugin
*pl
) {
233 return *(const unsigned long *)get_plugin_object(pl
, "disorder_player_type");
238 typedef void *prefork_fn(const char *track
);
240 void *play_prefork(const struct plugin
*pl
,
242 return ((prefork_fn
*)get_plugin_function(pl
,
243 "disorder_play_prefork"))(track
);
248 typedef void play_track_fn(const char *const *parameters
,
253 void play_track(const struct plugin
*pl
,
254 const char *const *parameters
,
258 ((play_track_fn
*)get_plugin_function(pl
,
259 "disorder_play_track"))(parameters
,
267 typedef void cleanup_fn(void *data
);
269 void play_cleanup(const struct plugin
*pl
, void *data
) {
270 ((cleanup_fn
*)get_plugin_function(pl
, "disorder_play_cleanup"))(data
);
275 typedef int pause_fn(long *playedp
, void *data
);
277 int play_pause(const struct plugin
*pl
, long *playedp
, void *data
) {
278 return (((pause_fn
*)get_plugin_function(pl
, "disorder_pause_track"))
284 typedef void resume_fn(void *data
);
286 void play_resume(const struct plugin
*pl
, void *data
) {
287 (((resume_fn
*)get_plugin_function(pl
, "disorder_resume_track"))