2 * This file is part of DisOrder.
3 * Copyright (C) 2004, 2005, 2006 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
30 #include "configuration.h"
37 /* generic plugin support *****************************************************/
40 # define SOSUFFIX ".so"
49 static struct plugin
*plugins
;
51 const struct plugin
*open_plugin(const char *name
,
58 for(pl
= plugins
; pl
&& strcmp(pl
->name
, name
); pl
= pl
->next
)
61 /* Search the plugin path */
62 for(n
= 0; n
<= config
->plugins
.n
; ++n
) {
63 byte_xasprintf(&p
, "%s/%s" SOSUFFIX
,
64 n
== config
->plugins
.n ? pkglibdir
: config
->plugins
.s
[n
],
66 if(access(p
, R_OK
) == 0) {
67 h
= dlopen(p
, RTLD_NOW
);
69 error(0, "error opening %s: %s", p
, dlerror());
72 pl
= xmalloc(sizeof *pl
);
74 pl
->name
= xstrdup(name
);
80 (flags
& PLUGIN_FATAL ? fatal
: error
)(0, "cannot find plugin '%s'", name
);
84 function_t
*get_plugin_function(const struct plugin
*pl
,
89 f
= (function_t
*)dlsym(pl
->dlhandle
, symbol
);
91 fatal(0, "error looking up function '%s' in '%s': %s",symbol
, pl
->name
, e
);
95 const void *get_plugin_object(const struct plugin
*pl
,
100 o
= dlsym(pl
->dlhandle
, symbol
);
102 fatal(0, "error looking up object '%s' in '%s': %s", symbol
, pl
->name
, e
);
106 /* specific plugin interfaces *************************************************/
108 typedef long tracklength_fn(const char *track
, const char *path
);
110 /** Compute the length of a track
111 * @param plugin plugin to use, as configured
112 * @param track UTF-8 name of track
113 * @param path file system path or 0
114 * @return length of track in seconds, 0 for unknown, -1 for error
116 long tracklength(const char *plugin
, const char *track
, const char *path
) {
117 tracklength_fn
*f
= 0;
119 f
= (tracklength_fn
*)get_plugin_function(open_plugin(plugin
,
121 "disorder_tracklength");
122 return (*f
)(track
, path
);
125 typedef void scan_fn(const char *root
);
127 void scan(const char *module
, const char *root
) {
128 ((scan_fn
*)get_plugin_function(open_plugin(module
, PLUGIN_FATAL
),
129 "disorder_scan"))(root
);
132 typedef int check_fn(const char *root
, const char *path
);
135 int check(const char *module
, const char *root
, const char *path
) {
136 return ((check_fn
*)get_plugin_function(open_plugin(module
, PLUGIN_FATAL
),
137 "disorder_check"))(root
, path
);
140 typedef void notify_play_fn(const char *track
, const char *submitter
);
142 void notify_play(const char *track
,
143 const char *submitter
) {
144 static notify_play_fn
*f
;
147 f
= (notify_play_fn
*)get_plugin_function(open_plugin("notify",
149 "disorder_notify_play");
150 (*f
)(track
, submitter
);
153 typedef void notify_scratch_fn(const char *track
,
154 const char *submitter
,
155 const char *scratcher
,
158 void notify_scratch(const char *track
,
159 const char *submitter
,
160 const char *scratcher
,
162 static notify_scratch_fn
*f
;
165 f
= (notify_scratch_fn
*)get_plugin_function(open_plugin("notify",
167 "disorder_notify_scratch");
168 (*f
)(track
, submitter
, scratcher
, seconds
);
171 typedef void notify_not_scratched_fn(const char *track
,
172 const char *submitter
);
174 void notify_not_scratched(const char *track
,
175 const char *submitter
) {
176 static notify_not_scratched_fn
*f
;
179 f
= (notify_not_scratched_fn
*)get_plugin_function
180 (open_plugin("notify",
182 "disorder_notify_not_scratched");
183 (*f
)(track
, submitter
);
186 typedef void notify_queue_fn(const char *track
,
187 const char *submitter
);
189 void notify_queue(const char *track
,
190 const char *submitter
) {
191 static notify_queue_fn
*f
;
194 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
196 "disorder_notify_queue");
197 (*f
)(track
, submitter
);
200 void notify_queue_remove(const char *track
,
201 const char *remover
) {
202 static notify_queue_fn
*f
;
205 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
207 "disorder_notify_queue_remove");
208 (*f
)(track
, remover
);
211 void notify_queue_move(const char *track
,
213 static notify_queue_fn
*f
;
216 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
218 "disorder_notify_queue_move");
222 void notify_pause(const char *track
, const char *who
) {
223 static notify_queue_fn
*f
;
226 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
228 "disorder_notify_pause");
232 void notify_resume(const char *track
, const char *who
) {
233 static notify_queue_fn
*f
;
236 f
= (notify_queue_fn
*)get_plugin_function(open_plugin("notify",
238 "disorder_notify_resume");
242 /* player plugin interfaces ***************************************************/
246 unsigned long play_get_type(const struct plugin
*pl
) {
247 return *(const unsigned long *)get_plugin_object(pl
, "disorder_player_type");
252 typedef void *prefork_fn(const char *track
);
254 void *play_prefork(const struct plugin
*pl
,
256 return ((prefork_fn
*)get_plugin_function(pl
,
257 "disorder_play_prefork"))(track
);
262 typedef void play_track_fn(const char *const *parameters
,
267 void play_track(const struct plugin
*pl
,
268 const char *const *parameters
,
272 ((play_track_fn
*)get_plugin_function(pl
,
273 "disorder_play_track"))(parameters
,
281 typedef void cleanup_fn(void *data
);
283 void play_cleanup(const struct plugin
*pl
, void *data
) {
284 ((cleanup_fn
*)get_plugin_function(pl
, "disorder_play_cleanup"))(data
);
289 typedef int pause_fn(long *playedp
, void *data
);
291 int play_pause(const struct plugin
*pl
, long *playedp
, void *data
) {
292 return (((pause_fn
*)get_plugin_function(pl
, "disorder_pause_track"))
298 typedef void resume_fn(void *data
);
300 void play_resume(const struct plugin
*pl
, void *data
) {
301 (((resume_fn
*)get_plugin_function(pl
, "disorder_resume_track"))