4 This file is part of PulseAudio.
6 Copyright 2006-2008 Lennart Poettering
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2 of the License,
11 or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/timeval.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 DEFAULT_SINK_FILE "default-sink"
47 #define DEFAULT_SOURCE_FILE "default-source"
48 #define DEFAULT_SAVE_INTERVAL 5
52 pa_subscription *subscription;
53 pa_time_event *time_event;
54 char *sink_filename, *source_filename;
58 static void load(struct userdata *u) {
61 /* We never overwrite manually configured settings */
63 if (u->core->default_sink_name)
64 pa_log_info("Manually configured default sink, not overwriting.");
65 else if ((f = fopen(u->sink_filename, "r"))) {
68 fgets(ln, sizeof(ln)-1, f);
73 pa_log_info("No previous default sink setting, ignoring.");
74 else if (pa_namereg_get(u->core, ln, PA_NAMEREG_SINK, TRUE)) {
75 pa_namereg_set_default(u->core, ln, PA_NAMEREG_SINK);
76 pa_log_info("Restored default sink '%s'.", ln);
78 pa_log_info("Saved default sink '%s' not existant, not restoring default sink setting.", ln);
80 } else if (errno != ENOENT)
81 pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
83 if (u->core->default_source_name)
84 pa_log_info("Manually configured default source, not overwriting.");
85 else if ((f = fopen(u->source_filename, "r"))) {
88 fgets(ln, sizeof(ln)-1, f);
93 pa_log_info("No previous default source setting, ignoring.");
94 else if (pa_namereg_get(u->core, ln, PA_NAMEREG_SOURCE, TRUE)) {
95 pa_namereg_set_default(u->core, ln, PA_NAMEREG_SOURCE);
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 const char *n = pa_namereg_get_default_sink_name(u->core);
113 fprintf(f, "%s\n", pa_strempty(n));
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 const char *n = pa_namereg_get_default_source_name(u->core);
122 fprintf(f, "%s\n", pa_strempty(n));
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 *tv, 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;
150 if (!u->time_event) {
152 pa_gettimeofday(&tv);
153 pa_timeval_add(&tv, DEFAULT_SAVE_INTERVAL*PA_USEC_PER_SEC);
154 u->time_event = u->core->mainloop->time_new(u->core->mainloop, &tv, time_cb, u);
158 int pa__init(pa_module *m) {
163 u = pa_xnew0(struct userdata, 1);
166 if (!(u->sink_filename = pa_runtime_path(DEFAULT_SINK_FILE)))
169 if (!(u->source_filename = pa_runtime_path(DEFAULT_SOURCE_FILE)))
174 u->subscription = pa_subscription_new(u->core, PA_SUBSCRIPTION_MASK_SERVER, subscribe_cb, u);
184 void pa__done(pa_module*m) {
189 if (!(u = m->userdata))
195 pa_subscription_free(u->subscription);
198 m->core->mainloop->time_free(u->time_event);
200 pa_xfree(u->sink_filename);
201 pa_xfree(u->source_filename);