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>
31 #include <pulsecore/core-util.h>
32 #include <pulsecore/module.h>
33 #include <pulsecore/log.h>
34 #include <pulsecore/namereg.h>
35 #include <pulsecore/core-error.h>
37 #include "module-default-device-restore-symdef.h"
39 PA_MODULE_AUTHOR("Lennart Poettering");
40 PA_MODULE_DESCRIPTION("Automatically restore the default sink and source");
41 PA_MODULE_VERSION(PACKAGE_VERSION);
42 PA_MODULE_LOAD_ONCE(TRUE);
44 #define DEFAULT_SINK_FILE "default-sink"
45 #define DEFAULT_SOURCE_FILE "default-source"
46 #define DEFAULT_SAVE_INTERVAL 5
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_name)
62 pa_log_info("Manually configured default sink, not overwriting.");
63 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 (pa_namereg_get(u->core, ln, PA_NAMEREG_SINK, TRUE)) {
73 pa_namereg_set_default(u->core, ln, PA_NAMEREG_SINK);
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_name)
82 pa_log_info("Manually configured default source, not overwriting.");
83 else if ((f = fopen(u->source_filename, "r"))) {
86 fgets(ln, sizeof(ln)-1, f);
91 pa_log_info("No previous default source setting, ignoring.");
92 else if (pa_namereg_get(u->core, ln, PA_NAMEREG_SOURCE, TRUE)) {
93 pa_namereg_set_default(u->core, ln, PA_NAMEREG_SOURCE);
94 pa_log_info("Restored default source '%s'.", ln);
96 pa_log_info("Saved default source '%s' not existant, not restoring default source setting.", ln);
98 } else if (errno != ENOENT)
99 pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
102 static void save(struct userdata *u) {
108 if (u->sink_filename) {
109 if ((f = fopen(u->sink_filename, "w"))) {
110 const char *n = pa_namereg_get_default_sink_name(u->core);
111 fprintf(f, "%s\n", pa_strempty(n));
114 pa_log("Failed to save default sink: %s", pa_cstrerror(errno));
117 if (u->source_filename) {
118 if ((f = fopen(u->source_filename, "w"))) {
119 const char *n = pa_namereg_get_default_source_name(u->core);
120 fprintf(f, "%s\n", pa_strempty(n));
123 pa_log("Failed to save default source: %s", pa_cstrerror(errno));
129 static void time_cb(pa_mainloop_api *a, pa_time_event *e, const struct timeval *tv, void *userdata) {
130 struct userdata *u = userdata;
136 u->core->mainloop->time_free(u->time_event);
137 u->time_event = NULL;
141 static void subscribe_cb(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
142 struct userdata *u = userdata;
148 if (!u->time_event) {
150 pa_gettimeofday(&tv);
151 pa_timeval_add(&tv, DEFAULT_SAVE_INTERVAL*PA_USEC_PER_SEC);
152 u->time_event = u->core->mainloop->time_new(u->core->mainloop, &tv, time_cb, u);
156 int pa__init(pa_module *m) {
161 m->userdata = u = pa_xnew0(struct userdata, 1);
164 if (!(u->sink_filename = pa_state_path(DEFAULT_SINK_FILE)))
167 if (!(u->source_filename = pa_state_path(DEFAULT_SOURCE_FILE)))
172 u->subscription = pa_subscription_new(u->core, PA_SUBSCRIPTION_MASK_SERVER, subscribe_cb, u);
182 void pa__done(pa_module*m) {
187 if (!(u = m->userdata))
193 pa_subscription_free(u->subscription);
196 m->core->mainloop->time_free(u->time_event);
198 pa_xfree(u->sink_filename);
199 pa_xfree(u->source_filename);