2 This file is part of PulseAudio.
4 Copyright 2006-2008 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #include <pulse/rtclock.h>
30 #include <pulse/timeval.h>
31 #include <pulse/util.h>
33 #include <pulsecore/core-util.h>
34 #include <pulsecore/module.h>
35 #include <pulsecore/log.h>
36 #include <pulsecore/namereg.h>
37 #include <pulsecore/core-error.h>
39 #include "module-default-device-restore-symdef.h"
41 PA_MODULE_AUTHOR("Lennart Poettering");
42 PA_MODULE_DESCRIPTION("Automatically restore the default sink and source");
43 PA_MODULE_VERSION(PACKAGE_VERSION
);
44 PA_MODULE_LOAD_ONCE(TRUE
);
46 #define SAVE_INTERVAL (5 * PA_USEC_PER_SEC)
50 pa_subscription
*subscription
;
51 pa_time_event
*time_event
;
52 char *sink_filename
, *source_filename
;
56 static void load(struct userdata
*u
) {
59 /* We never overwrite manually configured settings */
61 if (u
->core
->default_sink
)
62 pa_log_info("Manually configured default sink, not overwriting.");
63 else if ((f
= fopen(u
->sink_filename
, "r"))) {
67 (void) fgets(ln
, sizeof(ln
)-1, f
);
72 pa_log_info("No previous default sink setting, ignoring.");
73 else if ((s
= pa_namereg_get(u
->core
, ln
, PA_NAMEREG_SINK
))) {
74 pa_namereg_set_default_sink(u
->core
, s
);
75 pa_log_info("Restored default sink '%s'.", ln
);
77 pa_log_info("Saved default sink '%s' not existant, not restoring default sink setting.", ln
);
79 } else if (errno
!= ENOENT
)
80 pa_log("Failed to load default sink: %s", pa_cstrerror(errno
));
82 if (u
->core
->default_source
)
83 pa_log_info("Manually configured default source, not overwriting.");
84 else if ((f
= fopen(u
->source_filename
, "r"))) {
88 (void) fgets(ln
, sizeof(ln
)-1, f
);
93 pa_log_info("No previous default source setting, ignoring.");
94 else if ((s
= pa_namereg_get(u
->core
, ln
, PA_NAMEREG_SOURCE
))) {
95 pa_namereg_set_default_source(u
->core
, s
);
96 pa_log_info("Restored default source '%s'.", ln
);
98 pa_log_info("Saved default source '%s' not existant, not restoring default source setting.", ln
);
100 } else if (errno
!= ENOENT
)
101 pa_log("Failed to load default sink: %s", pa_cstrerror(errno
));
104 static void save(struct userdata
*u
) {
110 if (u
->sink_filename
) {
111 if ((f
= fopen(u
->sink_filename
, "w"))) {
112 pa_sink
*s
= pa_namereg_get_default_sink(u
->core
);
113 fprintf(f
, "%s\n", s
? s
->name
: "");
116 pa_log("Failed to save default sink: %s", pa_cstrerror(errno
));
119 if (u
->source_filename
) {
120 if ((f
= fopen(u
->source_filename
, "w"))) {
121 pa_source
*s
= pa_namereg_get_default_source(u
->core
);
122 fprintf(f
, "%s\n", s
? s
->name
: "");
125 pa_log("Failed to save default source: %s", pa_cstrerror(errno
));
131 static void time_cb(pa_mainloop_api
*a
, pa_time_event
*e
, const struct timeval
*t
, void *userdata
) {
132 struct userdata
*u
= userdata
;
138 u
->core
->mainloop
->time_free(u
->time_event
);
139 u
->time_event
= NULL
;
143 static void subscribe_cb(pa_core
*c
, pa_subscription_event_type_t t
, uint32_t idx
, void *userdata
) {
144 struct userdata
*u
= userdata
;
151 u
->time_event
= pa_core_rttime_new(u
->core
, pa_rtclock_now() + SAVE_INTERVAL
, time_cb
, u
);
154 int pa__init(pa_module
*m
) {
159 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
162 if (!(u
->sink_filename
= pa_state_path("default-sink", TRUE
)))
165 if (!(u
->source_filename
= pa_state_path("default-source", TRUE
)))
170 u
->subscription
= pa_subscription_new(u
->core
, PA_SUBSCRIPTION_MASK_SERVER
, subscribe_cb
, u
);
180 void pa__done(pa_module
*m
) {
185 if (!(u
= m
->userdata
))
191 pa_subscription_free(u
->subscription
);
194 m
->core
->mainloop
->time_free(u
->time_event
);
196 pa_xfree(u
->sink_filename
);
197 pa_xfree(u
->source_filename
);