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 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/timeval.h>
30 #include <pulse/util.h>
32 #include <pulsecore/core-util.h>
33 #include <pulsecore/module.h>
34 #include <pulsecore/log.h>
35 #include <pulsecore/namereg.h>
36 #include <pulsecore/core-error.h>
38 #include "module-default-device-restore-symdef.h"
40 PA_MODULE_AUTHOR("Lennart Poettering");
41 PA_MODULE_DESCRIPTION("Automatically restore the default sink and source");
42 PA_MODULE_VERSION(PACKAGE_VERSION);
43 PA_MODULE_LOAD_ONCE(TRUE);
45 #define DEFAULT_SAVE_INTERVAL 5
49 pa_subscription *subscription;
50 pa_time_event *time_event;
51 char *sink_filename, *source_filename;
55 static void load(struct userdata *u) {
58 /* We never overwrite manually configured settings */
60 if (u->core->default_sink)
61 pa_log_info("Manually configured default sink, not overwriting.");
62 else if ((f = fopen(u->sink_filename, "r"))) {
66 fgets(ln, sizeof(ln)-1, f);
71 pa_log_info("No previous default sink setting, ignoring.");
72 else if ((s = pa_namereg_get(u->core, ln, PA_NAMEREG_SINK))) {
73 pa_namereg_set_default_sink(u->core, s);
74 pa_log_info("Restored default sink '%s'.", ln);
76 pa_log_info("Saved default sink '%s' not existant, not restoring default sink setting.", ln);
78 } else if (errno != ENOENT)
79 pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
81 if (u->core->default_source)
82 pa_log_info("Manually configured default source, not overwriting.");
83 else if ((f = fopen(u->source_filename, "r"))) {
87 fgets(ln, sizeof(ln)-1, f);
92 pa_log_info("No previous default source setting, ignoring.");
93 else if ((s = pa_namereg_get(u->core, ln, PA_NAMEREG_SOURCE))) {
94 pa_namereg_set_default_source(u->core, s);
95 pa_log_info("Restored default source '%s'.", ln);
97 pa_log_info("Saved default source '%s' not existant, not restoring default source setting.", ln);
99 } else if (errno != ENOENT)
100 pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
103 static void save(struct userdata *u) {
109 if (u->sink_filename) {
110 if ((f = fopen(u->sink_filename, "w"))) {
111 pa_sink *s = pa_namereg_get_default_sink(u->core);
112 fprintf(f, "%s\n", s ? s->name : "");
115 pa_log("Failed to save default sink: %s", pa_cstrerror(errno));
118 if (u->source_filename) {
119 if ((f = fopen(u->source_filename, "w"))) {
120 pa_source *s = pa_namereg_get_default_source(u->core);
121 fprintf(f, "%s\n", s ? s->name : "");
124 pa_log("Failed to save default source: %s", pa_cstrerror(errno));
130 static void time_cb(pa_mainloop_api *a, pa_time_event *e, const struct timeval *tv, void *userdata) {
131 struct userdata *u = userdata;
137 u->core->mainloop->time_free(u->time_event);
138 u->time_event = NULL;
142 static void subscribe_cb(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
143 struct userdata *u = userdata;
149 if (!u->time_event) {
151 pa_gettimeofday(&tv);
152 pa_timeval_add(&tv, DEFAULT_SAVE_INTERVAL*PA_USEC_PER_SEC);
153 u->time_event = u->core->mainloop->time_new(u->core->mainloop, &tv, time_cb, u);
157 int pa__init(pa_module *m) {
162 m->userdata = u = pa_xnew0(struct userdata, 1);
165 if (!(u->sink_filename = pa_state_path("default-sink", TRUE)))
168 if (!(u->source_filename = pa_state_path("default-source", TRUE)))
173 u->subscription = pa_subscription_new(u->core, PA_SUBSCRIPTION_MASK_SERVER, subscribe_cb, u);
183 void pa__done(pa_module*m) {
188 if (!(u = m->userdata))
194 pa_subscription_free(u->subscription);
197 m->core->mainloop->time_free(u->time_event);
199 pa_xfree(u->sink_filename);
200 pa_xfree(u->source_filename);